CN107019521A - Radiographic apparatus and X-ray detector - Google Patents
Radiographic apparatus and X-ray detector Download PDFInfo
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- CN107019521A CN107019521A CN201710035267.8A CN201710035267A CN107019521A CN 107019521 A CN107019521 A CN 107019521A CN 201710035267 A CN201710035267 A CN 201710035267A CN 107019521 A CN107019521 A CN 107019521A
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- 238000001514 detection method Methods 0.000 claims abstract description 70
- 230000003287 optical effect Effects 0.000 claims description 41
- 238000006073 displacement reaction Methods 0.000 claims description 33
- 238000007689 inspection Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 42
- 238000012545 processing Methods 0.000 description 14
- 238000003860 storage Methods 0.000 description 13
- 238000009826 distribution Methods 0.000 description 9
- 230000005855 radiation Effects 0.000 description 9
- 230000009897 systematic effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000013098 chemical test method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4266—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a plurality of detector units
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- Apparatus For Radiation Diagnosis (AREA)
Abstract
The present invention relates to radiographic apparatus and X-ray detector, it is possible to increase has used the efficiency of the inspection of portable x-ray detector.The radiographic apparatus of embodiment possesses X-ray detector, top plate, obtaining section, control unit.The X-ray that X-ray detector detection is irradiated from X-ray tube.Top plate is loaded for the X-ray detector and subject.Obtaining section obtains positional information of the X-ray detector relative to the top plate.Control unit は, relative to the positional information of the top plate, sets the irradiation condition related to the range of exposures of X-ray based on the positional information acquired by the obtaining section, the X-ray tube.
Description
The reference of related application:The application enjoys Japan's patent application 2016- filed in 18 days January in 2016
The priority of No. 007379, the full content of Japan's patent application is cited in the application.
Technical field
Embodiment is related to radiographic apparatus and X-ray detector.
Background technology
Radiographic apparatus, to subject X-ray irradiation, is transmitted from X-ray tube by X-ray detector detection from subject
X-ray, thus generate radioscopic image.Here, when generating radioscopic image by radiographic apparatus, existing without using arranging
Portable x-ray detector is used (for example, portable FPD (Flat in the X-ray detector of radiographic apparatus main body
Panel Detector:Flat-panel detector) etc.) situation.For example, in the diagnosis carried out using radiographic apparatus, making
In the case that X-ray detector is close to the object position of subject and shot, portable x-ray detector is used.
In the case of using such portable x-ray detector, generally, operator is set to the object position of subject
Portable x-ray detector, adjusts position, position of top plate of X-ray tube etc. so that in set X-ray detector
X-ray irradiation in detection range.
The content of the invention
Problem to be solved by this invention is to provide a kind of inspection that can be improved and carry out using portable x-ray detector
The radiographic apparatus and X-ray detector for the efficiency looked into.
The radiographic apparatus of embodiment possesses X-ray detector, top plate, obtaining section, control unit.X-ray detector
Detect the X-ray irradiated from X-ray tube.Top plate is used to load the X-ray detector and subject.Obtaining section obtains described
Positional information of the X-ray detector relative to the top plate.Control unit is based on the positional information acquired by the obtaining section and institute
Positional information of the X-ray tube relative to the top plate is stated, the irradiation condition relevant with the range of exposures of X-ray is set.
Invention effect
The inspection that use portable x-ray detector is carried out can be improved according to the radiographic apparatus of embodiment
Efficiency.
Brief description of the drawings
Fig. 1 is the figure of one of the radiographic apparatus for representing first embodiment.
Fig. 2 is the block diagram of one of the composition for the radiographic apparatus for representing first embodiment.
Fig. 3 is the figure of one of the composition for the portable FPD for representing first embodiment.
Fig. 4 is the figure of one for the portable FPD for representing first embodiment.
Fig. 5 is the figure for illustrating the reference position of first embodiment.
Fig. 6 is the figure for illustrating the acquirement of the rotation information of first embodiment.
Fig. 7 is the flow chart for illustrating a series of flows of the processing of the radiographic apparatus of first embodiment.
Fig. 8 is the figure of one for the portable FPD for representing second embodiment.
Embodiment
Hereinafter, the radiographic apparatus of embodiment is illustrated referring to the drawings.In addition, following, illustrate except with X
The radiodiagnosis dress of portable x-ray detector is also equipped with outside the X-ray detector that ray diagnostic device main body is integrally formed
Put.In addition, following, illustrate as portable x-ray detector using being arranged as x-ray detection device two dimension shape to put down
Face and the situation for the portable FPD that can be carried by operator.
First, one of the radiographic apparatus of first embodiment is illustrated using Fig. 1.Fig. 1 is to represent first
The figure of one of the radiographic apparatus of embodiment.As shown in Figure 1, the radiographic apparatus tool of first embodiment
Standby X-ray tube, top plate, portable FPD, X-ray detector etc..Radiographic apparatus shown in Fig. 1 is in order to detect from X-ray
The X-ray of pipe irradiation, may be selected any one in portable FPD and X-ray detector to use.
Portable FPD shown in Fig. 1 is placed on top plate, and operator etc. manually Portable handheld formula FPD can be loaded
Position.Then, the radiographic apparatus of first embodiment can use the portable of the optional position that is placed on top plate
Formula FPD shoots radioscopic image.For example, carrying out the situation of the affected part i.e. shooting of arm in the subject fractured to arm
Under, radiographic apparatus from affected part X-ray irradiation of the X-ray tube to subject, by be configured at affected part lower section it is portable
FPD detects X-ray, thus carries out the shooting of radioscopic image.
In addition, the radiographic apparatus of first embodiment can take the portable FPD shown in Fig. 1 away from top plate,
The shooting of radioscopic image is performed using X-ray detector.For example, in the case where the whole body for carrying out subject is shot, X-ray
Portable FPD is not placed on top plate by diagnostic device, but X-ray tube and X-ray detector in the state of opposed on one side
One side X-ray irradiation is moved relative to subject, X-ray is detected by X-ray detector.
Next, being illustrated using Fig. 2 to one of the composition of the radiographic apparatus 1 of first embodiment.Fig. 2
It is the block diagram of one of the composition for the radiographic apparatus 1 for representing first embodiment.As shown in Figure 2, the first embodiment party
The radiographic apparatus 1 of formula possesses x-ray source 101, portable FPD104, examination bed apparatus 105, display 109, input electricity
Road 110, storage circuit 111, process circuit 112.
X-ray source 101 possesses X-ray tube 102, x-ray diAN_SNhragm device 103.X-ray tube 102 is used from height (not shown)
The high voltage of voltage generator supply, produces X-ray.X-ray diAN_SNhragm device 103 is for the radiation amount reduced to subject P1
With the purpose for the image quality for improving view data, and the irradiation field of X-ray is controlled.In addition, x-ray source 101 is supported on such as arm
Deng supporting part, driven by drive device (not shown).Drive device is under control function 112b control, such as by making support
The arm of x-ray source 101 drives to move the position of x-ray source 101.In addition, drive device for example can also be to support X-ray
The support section in source 101 is axle to rotate x-ray source 101.In addition, drive device makes X under control function 112b control
The position movement for the blade of diaphragm that ray aperture device 103 has.That is, control function 112b is filled by adjusting x-ray diAN_SNhragm
The aperture of 103 blades of diaphragm having is put to control the range of exposures to the subject P1 X-rays irradiated.
Portable FPD104 has multiple x-ray detection devices, and detection is irradiated and saturating from subject P1 from x-ray source 101
The data (two-dimensional intensity distribution data) of the two-dimentional intensity distribution for the X-ray penetrated.That is, portable FPD104 is detected from X-ray
The X-ray that pipe 102 irradiates.Here, portable FPD104 is placed on top plate 106, moved by operator.Also, first implements
The portable FPD104 of mode collects the information relevant with the movement on top plate 106 and sent to process circuit 112.In addition,
Portable FPD104 in first embodiment is one of the X-ray detector in claims.In addition, relevant with movement
Information remain it is aftermentioned.
Examination bed apparatus 105 possesses top plate 106, X-ray detector 107, diagnostic bed drive device 108.Top plate 106 is used for
Load portable FPD104 and subject P1.In addition, in the case where being shot using X-ray detector 107, being penetrated from X
The X-ray that spool 102 irradiates is detected after the transmission of top plate 106 by X-ray detector 107.Therefore, top plate 106 is configured to not right
The X-ray of transmission brings influence.In addition, the surface set in top plate 106 has reference position.Reference position remains aftermentioned.
X-ray detector 107 has multiple x-ray detection devices, and detection is irradiated from x-ray source 101 and from subject P1
The two-dimensional intensity distribution data of the X-ray of transmission.Diagnostic bed drive device 108 makes top plate under control function 112b control
106 and X-ray detector 107 vertically and horizontal direction movement.
Display 109 is the monitor that operator carries out reference, under control function 112b control, display X-ray
Irradiation condition, the radioscopic image generated by shooting etc..Input circuit 110 have it is various instruction or various settings it is defeated
Enter the middle mouse used, keyboard, tracking ball, switch, button, rocking bar etc., accept instruction from operator and set.For example, input
Circuit 110 can have slope switch (offset switch), position-sensing switch.
Storage circuit 111 is stored in process circuit 112 and controls to use during the whole processing carried out by radiographic apparatus 1
Data and X-ray image data etc..In addition, the coordinate, portable of the reference position on the storage top plate 106 of storage circuit 111
Coordinate of optical sensor on formula FPD104 etc..In addition, storage circuit 111 stores each journey performed by process circuit 112
Sequence.
The execution of process circuit 112 obtains function 112a, control function 112b, image systematic function 112c.Fig. 2 embodiment party
In formula, each processing carried out by acquirement function 112a, the control function 112b and image systematic function 112c of inscape
The form for the program that function can perform with computer is recorded in storage circuit 111.Process circuit 112 is by from storage circuit
111 reading programs simultaneously perform to realize the processor of function corresponding with each program.In other words, in the state of having read each program
Process circuit 112 have Fig. 2 process circuit 112 shown in each function.In addition, being illustrated in Fig. 2 in single process circuit
Middle situation about realizing by obtaining the processing function that function 112a, control function 112b and image systematic function 112c are carried out,
But can also combine multiple independent processors to constitute process circuit, work(is realized by each processor configuration processor
Energy.
" processor " this statement used in described above for example refers to:CPU(Central Processing
Unit), GPU (the Graphics Processing Unit) or integrated circuit (Application of special-purpose
Specific Integrated Circuit;ASIC), programmable logic device (such as simple programmable logic device
(Simple Programmable Logic Device;SPLD), Complex Programmable Logic equipment (Complex
Programmable Logic Device;) and live codified gate array (Field Programmable Gate CPLD
Array;The circuit such as FPGA)).Processor is by reading the program preserved in storage circuit 111 and function is realized in execution.Separately
It is outer or, instead of the save routine in storage circuit 111, and in the circuit of processor direct loader.The situation
Under, processor realizes function by the program that loads in reading circuit and execution.In addition, each processor of present embodiment is not
The situation that is limited to be configured to single circuit according to each processor or, multiple independent circuits are combined to be configured to 1
Individual processor, realizes its function.And then, Fig. 2 multiple inscapes can also be integrated into 1 processor to realize its work(
Energy.
Acquirement function 112a in first embodiment is one of the obtaining section in claims.In addition, first is real
Apply that control function 112b in mode is the control unit in claims one.
Process circuit 112 controls the whole processing carried out by radiographic apparatus 1.Carried out by radiographic apparatus 1
Handle the setting for specifically referring to shooting condition, the radiation of X-ray, the detection of X-ray, the generation of output signal, X ray picture
Show etc. as the generations of data, image, a series of processing related to shooting.Here, the process circuit 112 of first embodiment
Based on from the amount of movement on the top plate 106 that portable FPD104 is received, positions of the portable FPD104 relative to top plate 106 is obtained
Confidence ceases, and thus sets the irradiation condition related to the range of exposures of X-ray, the bat under the conditions of irradiation set by control
Take the photograph.In addition, control details remain it is aftermentioned.
More than, being monolithically fabricated for radiographic apparatus 1 of first embodiment is illustrated.In the base of this composition
On plinth, the radiographic apparatus 1 of first embodiment obtains positional informations of the portable FPD104 relative to top plate 106, setting
The irradiation condition related to the range of exposures of X-ray, thus improves and checks efficiency.
Herein first, conventional radiographic apparatus is illustrated.In the past, radiographic apparatus was examined using X-ray
In the case of surveying the shooting that device carries out radioscopic image, can based on the position relationship between x-ray source and X-ray detector, with
The mode that x-ray bombardment scope is contained in X-ray detection scope is automatically set the irradiation condition of X-ray.On the other hand, make
In the case of carrying out the shooting of radioscopic image with portable FPD, conventional radiographic apparatus can due to not grasping operator
The portable FPD manually moved positional information, therefore the shooting condition related to the range of exposures of X-ray can not be set.
Therefore, in conventional radiographic apparatus use portable FPD in the case of, operator so that x-ray bombardment scope by comprising
The adjustment of portable FPD position or x-ray bombardment scope etc. is carried out in the mode of X-ray detection scope, particularly tested
Contraposition is difficult in the case that the back side of body configures portable FPD, and the time existed required for checking is elongated, inspection efficiency reduction
Situation.
Then, the radiographic apparatus 1 of first embodiment obtains portable FPD104 positional information, automatically sets
The fixed irradiation condition related to the range of exposures of X-ray, thus improves and checks efficiency.Specifically, the X of first embodiment is penetrated
Ray diagnosis apparatus 1 calculates portable FPD104 relative to top plate 106 using the amount of movement of the portable FPD104 on top plate 106
Positional information.Then, radiographic apparatus 1 based on the positional information, X-ray tube 102 calculated relative to top plate 106
Positional information, sets the irradiation condition related to the range of exposures of X-ray, the X-ray irradiation under the conditions of set irradiation.
First, the composition to the portable FPD104 of first embodiment is illustrated.Fig. 3 is to represent first embodiment
Portable FPD104 composition the figure of one.As shown in Figure 3, the portable FPD104 of first embodiment has X
Ray detection circuit 104a, displacement detecting circuit 104b, transtation mission circuit 104c.In addition, the displacement detecting in first embodiment
Circuit 104b is one of displacement detecting portion in claims.
The X-ray detection circuit 104a of first embodiment has x-ray detection device, detects irradiated X-ray
Two-dimensional intensity distribution data.Arranged to two dimension shape (rectangular) on portable FPD104 upper surface in this x-ray detection device
Show multiple.The displacement detecting circuit 104b of first embodiment detects amount of movements of the portable FPD104 on top plate 106.
That is, portable FPD104 possesses the position for the amount of movement for being arranged at portable FPD104, the portable FPD104 of detection on top plate 106
Move detection circuit 104b.For example, displacement detecting circuit 104b has the sensor for the movement for sensing portable FPD104, based on by
The information that sensor is sensed, detects amount of movement.
The sensor of so-called sensing movement for example refers to herein, and by recognizing, the pattern on the surface of opposed plane is sensed
Mobile optical sensor, the rotation based on spheroid are come ball sensor of sensing movement etc..For example, displacement detecting circuit
104b possesses optical sensor, and the pattern on the surface of the top plate 106 recognized based on optical sensor detects amount of movement.
Enumerating one is, the optical sensor that displacement detecting circuit 104b has passes through detection to opposed planar illumination laser
The reflection of the laser irradiated, to detect amount of movement.Here, in optical sensor, by using black light region
Laser, portable FPD104 is lifted, to being irradiated operator or subject P1 in the state of being projected even in laser
Laser, can also avoid bringing sense of discomfort to operator or subject P1 etc..Therefore, by being used not in optical sensor
The laser of visible region, can avoid due to portable FPD104 possesses optical sensor and it is issuable give operator
Or the puzzlement that subject P1 etc. is brought.In addition, for example, displacement detecting circuit 104b possesses spheroid, based on the spheroid on top plate 106
Rotation, detect amount of movement.Enumerating one is, the ball sensor that displacement detecting circuit 104b has by with plane contact
Spheroid rotation and encoder rotate, by optical sensor trap encoder rotating speed, to detect amount of movement.
Radio communication is carried out between the transtation mission circuit 104c and process circuit 112 of first embodiment, various information are sent.
For example, transtation mission circuit 104c is by by the two-dimensional intensity distribution data of the X-ray detection circuit 104a X-rays detected or by displacement
The amount of movement that detection circuit 104b is detected, sends to process circuit 112.
Hereinafter, one of the portable FPD104 of first embodiment is illustrated using Fig. 4.Fig. 4 is to represent first
The portable FPD104 of the embodiment figure of one.In addition, enumerating displacement detecting circuit 104b as one in Fig. 4 and possessing
The situation of optical sensor is illustrated.For example, portable FPD104 is as shown in Figure 4, there is X-ray inspection in upper surface
Element is surveyed, there is optical sensor in lower surface.Believe in the portable FPD104 of this first embodiment in order to obtain rotation
Breath, and with 2 optical sensors.That is, portable FPD104 uses 2 detected respectively by 2 optical sensors
Amount of movement, calculates portable FPD104 rotation information.In addition, rotation information remain it is aftermentioned.
Optical sensor shown in Fig. 4 is in the case where portable FPD104 is placed on top plate 106, with top plate 106
It is opposed, laser is irradiated to top plate 106, reflected laser is detected.For example, letter of the optical sensor according to the laser reflected
Cease to recognize the pattern on the surface of top plate 106.Then, displacement detecting circuit 104b is according to the top plate identified by optical sensor
The change of the pattern on 106 surfaces, detects amount of movements of the portable FPD104 relative to top plate 106.
Portable FPD104 shown in Fig. 4 possesses 2 optical sensors.That is, in Fig. 4, portable FPD104 is provided with
Multiple displacement detecting circuit 104b.In addition, the quantity that the portable FPD104 of first embodiment possesses optical sensor is
Arbitrarily.In addition, as shown in Figure 4, in optical sensor provided with the case of multiple, multiple displacement detecting circuit 104b
Amount of movement corresponding with each optical sensor is detected respectively.
Here, as shown in Figure 4, portable FPD104 has slope switch.Slope switch is to be used for designated displacement inspection
The switch of initial position during the portable FPD104 of slowdown monitoring circuit 104b detections amount of movement.That is, displacement detecting circuit 104b will be inclined
Position at the time of pass is pressed is removed as initial position, the movement sensed after slope switch is pressed is detected as movement
Amount.For example, slope switch is pressed after portable FPD104 is by the reference position that is placed on top plate 106.
Reference position is the position set as the initial position of the portable FPD104 on top plate 106, such as Fig. 5 institutes
Show like that, be set with reference position A~C.Here, the reference position on top plate 106 can arbitrarily be set, for example, also can
Different reference positions are set respectively according to each hospital.Reference position is shown in top otherwise can be known by operator
On plate 106.For example as shown in Figure 5, reference position A~C is shown on top plate 106 by coating or light etc..Operator
Optimal reference position is selected to be used as portable FPD104 initial bit from the reference position A~C shown on top plate 106
Put.In addition, obtain function 112a is set as reference position by the position that operator selects from multiple positions on top plate 106.
Enumerating one is, operator selects reference position corresponding with the affected part of subject, portable FPD104 is placed in selected
Reference position.For example, when affected part is located at the belly of subject, it is contemplated that the subject being placed in when on top plate 106
Affected part and reference position B are closer, therefore operator selection reference position B, and portable FPD104 is placed in into reference position B.
Then, operator presses and the selected slope switch corresponding to reference position.For example, operator is by portable FPD104
In the case of the reference position B for being placed on Fig. 5, Fig. 4 slope switch B is pressed.In addition, Fig. 5 is to be used to illustrate the first implementation
The figure of the reference position of mode.
For example, the reference position B that portable FPD104 is placed on top plate 106, slope switch is pressed.Thus, hand
Formula FPD104 is carried by initial position of reference position B to detect amount of movement.Then, press after slope switch, operator will be by
A corpse or other object for laboratory examination and chemical testing is placed on top plate 106 and portable FPD104, is put in so that the affected part of subject is taken on portable FPD104
The mode position that carries out portable FPD104 adjustment after, press the position-sensing switch that input circuit 110 possesses.Positioning is opened
Pass is for notifying to have tied for the adjustment for loading the affected part of subject on portable FPD104 and carrying out to process circuit 112
The switch of the situation of beam, process circuit 112 regard pressing for position-sensing switch as triggering, the portable FPD104 of beginning positional information
Acquirement processing.
Displacement detecting circuit 104b detects portable untill position-sensing switch is pressed from the pressing of slope switch
FPD104 amount of movement, transtation mission circuit 104c sends amount of movement to process circuit 112.Then, the acquirement of first embodiment
Positional informations of the function 112a based on the reference position on top plate 106, portable FPD104 are obtained from the amount of movement of reference position
Positional informations of the portable FPD104 relative to top plate 106.
In addition, in Fig. 4, slope switch is configured at portable FPD104 upper surface, but the position of slope switch is to appoint
Meaning.It for example can also be following situation:Via the GUI for being shown in display 109, by the operation of mouse or keyboard etc., come
Realize the function of slope switch.In addition, the position of position-sensing switch is also arbitrary, for example, it can also be arranged in shown in Fig. 4
The situation of portable FPD104 upper surface.
Next, the acquirement of the positional information to portable FPD104 relative to top plate 106 is illustrated.First embodiment party
Positional informations of the acquirement function 112a based on reference position of formula, portable FPD104 obtain hand from the amount of movement of reference position
Put forward positional informations of the formula FPD104 relative to top plate 106.
First, function 112a and the slope switch being pressed are obtained correspondingly, reference position is obtained from storage circuit 111
Positional information.For example, in the case that Fig. 4 slope switch B has been pressed, as the positional information of reference position, obtaining function
112a obtains the positional information of the reference position B shown in Fig. 5 from storage circuit 111.Positional information in this reference position refers to
Coordinate of reference position for top plate 106 etc..Then, function 112a is obtained based on the reference position on top plate 106
Positional information and portable FPD104 from the amount of movement of reference position, calculate portable at the time of position-sensing switch is pressed
Positional informations of the formula FPD104 relative to top plate 106.
Enumerating one is, obtains the seat of the position after the amount that function 112a will move amount of movement from the coordinate of reference position
Mark, is calculated as portable FPD104 positional information.The coordinate calculated herein can be the scope overall with portable FPD104
Suitable coordinate or the coordinate suitable with X-ray detection scope (scope of x-ray detection device).For example, in benchmark
The scope of position with portable FPD104 identicals size according to being set, calculate the coordinate suitable with X-ray detection scope
In the case of, acquirement function 112a is calculated from the coordinate of the scope of reference position first moves the coordinate after the amount of amount of movement,
Thus the coordinate suitable with the scope that portable FPD104 is overall is calculated.Then, obtain function 112a and be based on portable FPD104
In X-ray detection scope position (coordinate), according to the coordinate suitable with the scope that portable FPD104 is overall, calculate and X
The suitable coordinate of ray detection scope.In addition, the position of the X-ray detection scope in portable FPD104 is from portable FPD104
Operation instructions etc. obtain, and be stored in and prestore circuit 111.That is, function 112a is obtained to obtain from storage circuit 111
The information of the position of X-ray detection scope in portable FPD104, it is further whole with portable FPD104 to what is calculated
The coordinate suitable with X-ray detection scope among the coordinate that body phase is worked as is calculated.
In addition, for example, in the case that reference position is set according to the size different from portable FPD104, setting in advance
Fixed portable FPD104 relative to reference position mounting method, according to the positional information (coordinate) of reference position, portable
The information of FPD104 size, calculates positional informations of the portable FPD104 relative to top plate 106.For example, being used as reference position
And in the case of setting 4 corners of top plate 106, operator selects arbitrary corner in 4 corners, so that portable
Portable FPD104 is placed on top plate 106 by the mode that FPD104 corner coincide with selected corner.Obtain function
112a calculates the hand being coincide with reference position according to the coordinate in selected reference position (corner) and the amount of movement calculated
Coordinate after the movement in the corner for carrying formula FPD104.Then, coordinates and hand of the function 112a according to the corner after movement are obtained
Formula FPD104 size is put forward, the coordinate suitable with the scope that the portable FPD104 after movement is overall is calculated.In addition, portable
FPD104 size is obtained from portable FPD104 operation instructions etc., and is stored in and is prestored circuit 111.In addition,
Obtain function 112a and pass through the above method, additionally it is possible to calculate the coordinate suitable with X-ray detection scope.
Here, position of the radiographic apparatus 1 of first embodiment except portable FPD104 relative to top plate 106
Rotation informations of the portable FPD104 relative to top plate 106 can also be obtained outside information.Hereinafter, illustrate that first is real using Fig. 6
Apply acquirements of the acquirement function 112a of mode to rotation information.Fig. 6 is for illustrating taking for the rotation information of first embodiment
The figure obtained.
For example shown in the upper figures of Fig. 6 like that, the portable FPD104 for possessing 2 optical sensors is placed in benchmark position
Put, regard portable FPD104 now as " 0 " relative to the anglec of rotation of top plate 106.Here, obtaining function 112a can make
With the coordinate of the portable FPD104 at the reference position being placed on top plate 106, each optical sensor relative to portable
FPD104 positional information, calculates the coordinate of each optical sensor on top plate 106.In addition, each optical sensor is relative
Obtained in portable FPD104 positional information from portable FPD104 operation instructions etc., and be stored in and prestore electricity
Road 111.That is, function 112a is obtained to calculate and at the time of the reference position being placed on portable FPD104 on top plate 106
Under each optical sensor the corresponding top plate 106 in position on coordinate, be used as each optical sensor on top plate 106
Coordinate.
Then, it is portable when portable FPD104 has carried out mobile on top plate 106 as shown in Fig. 6 figure below
2 optical sensors that FPD104 possesses detect the amount of movement relative to top plate 106 respectively.Here, obtaining function 112a
Coordinate, each optical sensor of each optical sensor under at the time of be placed in reference position using portable FPD104
Detected amount of movement, calculates the coordinate after the movement of optical sensor on the basis of top plate 106 respectively.And then, take
Coordinates of the function 112a according to each optical sensor after movement is obtained, the mutual position relationship of 2 optical sensors is calculated,
Calculate portable FPD104 rotation information.In the case that such portable FPD104 is moved for example shown in Fig. 6 figure below,
Coordinates of the function 112a based on each optical sensor is obtained come the mutual position relationship of calculating optical formula sensor, thus, is made
For the rotation information of the portable FPD104 after movement, the anglec of rotation " θ 1 " is calculated.
As described above, obtain function 112a and calculate the mutual position relationship of 2 optical sensors, calculate portable
FPD104 rotation information.That is, the amount of movement that function 112a is detected respectively based on multiple displacement detecting circuit 104b is obtained, taken
Obtain rotation informations of the portable FPD104 relative to top plate 106.Enumerating one is, obtains function 112a and is sensed using each optical profile type
The coordinate of device, compares the inclination for the straight line that 2 optical sensors at reference position are entered with joining line and to 2 after movement
Optical sensor enters the inclination of the straight line of joining line, thus calculates the anglec of rotation " θ 1 ".
Next, the setting of the explanation irradiation condition related to the range of exposures of X-ray.First, first embodiment
Portable FPD104 positional information relative to top plate 106, X-rays of the control function 112b according to acquired by obtaining function 112a
Pipe 102 calculates positional information (X-rays of the portable FPD104 relative to X-ray tube 102 relative to the positional information of top plate 106
Position relationship between pipe 102 and portable FPD104).In addition, the control of positions of the control function 112b due to carrying out top plate 106
The control of the position of system and X-ray tube 102, therefore, it is possible to obtain positional information of the X-ray tube 102 relative to top plate 106.
Then, control function 112b is based on the position relationship between the X-ray tube 102 and portable FPD104 calculated
Information, sets for making the x-ray bombardment scope irradiation condition consistent with the X-ray detection scope in portable FPD104.That is,
Control function 112b is based on positional informations of the portable FPD104 relative to top plate 106, X-ray obtained acquired by function 112a
Pipe 102 sets the irradiation condition related to the range of exposures of X-ray relative to the positional information of top plate 106.For example, control work(
Energy 112b sets x-ray source in the way of X-ray irradiation in the range of the X-ray detection in portable FPD104 after movement
101 position and rotation amount etc..
Enumerating one is, control function 112b calculates X-ray using portable FPD104 positional information and rotation information
Bias between range of exposures and X-ray detection scope, sets the irradiation with X-ray in the way of being modified to bias
The related irradiation condition of scope.The irradiation condition related to the range of exposures of X-ray refers to that the position of top plate 106, X are penetrated herein
Position, the rotation amount of X-ray tube 102, the diaphragm aperture of x-ray diAN_SNhragm device 103 and the x-ray diAN_SNhragm device 103 of spool 102
Rotation amount etc., the condition of influence can be brought to the range of exposures of X-ray.For example, control function 112b is, irradiation bar is used as
Part, the position of setting top plate 106, the position of X-ray tube 102, the rotation amount of X-ray tube 102, the light of x-ray diAN_SNhragm device 103
At least one in the rotation amount of late aperture and x-ray diAN_SNhragm device 103.For example, control function 112b calculates x-ray bombardment model
Enclose the bias of the centre coordinate between X-ray detection scope, set in the way of being modified to bias top plate 106 or
The position of the horizontal direction of person's X-ray tube 102.In addition, control function 112b can be according to portable FPD104 operation instruction
Book etc. calculates the position of the X-ray detection scope in portable FPD104.For example, control function 112 calculated with it is portable
In the case of the suitable coordinate of scope overall FPD104, calculate suitable with X-ray detection scope according to the coordinate calculated
Coordinate.
And then, the positional information that control function 112b can be according to portable FPD104 relative to X-ray tube 102 obtains X
Radiation and information, i.e. SID (Source-Isocenter Distance) information of the distance between X-ray detection.Control
Function 112b processed is by the area according to the diaphragm aperture of SID information and x-ray diAN_SNhragm device 103 calculating irradiation field, to count
The bias relevant with area between x-ray bombardment scope and X-ray detection scope is calculated, with the side being modified to bias
Position, diaphragm aperture of x-ray diAN_SNhragm device 103 of vertical direction of formula setting top plate 106 etc..
And then, rotation informations of the control function 112b using portable FPD104 relative to top plate 106 calculates roentgenogram
The bias relevant with the anglec of rotation penetrated between scope and X-ray detection scope, in the way of being modified to bias, if
Determine the rotation amount of X-ray tube 102 or x-ray diAN_SNhragm device 103.In addition, x-ray diAN_SNhragm device 103 can be by the shape of irradiation field
Shape is set to the shape identical with portable FPD104 X-ray detection scope, for example, x-ray diAN_SNhragm device 103 is portable
In the case that FPD104 X-ray detection scope is square, diaphragm is controlled in the way of irradiation field is turned into square.
As described above, the control function 112b of first embodiment calculates x-ray bombardment scope and X-ray detection scope
Between bias, the irradiation condition related to the range of exposures of X-ray is set in the way of being modified to bias.Example
Such as, control function 112b is set in the way of the detection range that the range of exposures of X-ray is contained in portable FPD104 and penetrated with X
The related irradiation condition of the range of exposures of line.In addition for example, control function 112b, which can also be set, makes x-ray bombardment scope and X
The consistent irradiation condition of the whole of shape, position, area and the anglec of rotation between ray detection scope.
Then, the control function 112b of first embodiment to shine from ray tube 102 under the conditions of set irradiation
Penetrate X-ray, the X-ray that X-ray detection circuit 104a detections are transmitted from subject P1.Transtation mission circuit 104c is electric by X-ray detection
The two-dimensional intensity distribution data for the X-ray that road 104a is detected are sent to process circuit 112, and image systematic function 112c is according to X
The two-dimensional intensity distribution data generation X-ray image data of ray.
Next, one of the step of illustrating the processing carried out by radiographic apparatus 1 using Fig. 7.Fig. 7 is to be used to say
A series of flow chart of flows of the processing of the radiographic apparatus 1 of bright first embodiment.Step 105 is with obtaining function
Step corresponding 112a.Step 106, step 107, step 108, step 109, step 110, step 111 and step 112 be with
Step corresponding control function 112b.
First, portable FPD104 is placed in reference position (step 101) by operator, and presses slope switch (step
It is rapid 102).Then, adjust portable in the way of subject P1 affected part is placed on portable FPD104 by operator
FPD104 position.Now, in portable FPD104, displacement detecting circuit 104b detects portable FPD104 from benchmark in real time
The amount of movement of position, detects the amount of movement (step 103) from reference position.Then, portable FPD104 position is being finished
Adjustment after, position-sensing switch (step 104) is pressed by operator.
Pressed by operator after position-sensing switch, positional information of the process circuit 112 based on reference position, position-sensing switch quilt
Portable FPD104 under at the time of pressing obtains portable FPD104 relative to top plate 106 from the amount of movement of reference position
Positional information and rotation information (step 105).And then, process circuit 112 uses acquired portable FPD104 position
Information and rotation information, x-ray source is set in the way of the portable FPD104 after x-ray source 101 and movement is matched
101 position and rotation amount (step 106).For example, process circuit 112 so that x-ray bombardment scope with it is mobile after it is portable
The consistent mode of X-ray detection scope in formula FPD104 sets position and the rotation amount of x-ray source 101.Then, electricity is handled
Road 112 correspondingly acts drive device with set position and rotation amount, adjusts the position and orientation of x-ray source 101
(step 107).
Then, process circuit 112 judges whether x-ray bombardment scope is consistent (step 108) with X-ray detection scope.
This, such as due to portable FPD104 generated along with moving for subject P1 it is mobile, cause x-ray bombardment scope
With X-ray detection scope it is inconsistent in the case of (step 108 negates), process circuit 112 moves again to step 104.In addition, hand
Whether the formula FPD104 of carrying generates mobile judgement is carried out for example based on the amount of movement received from transtation mission circuit 104c.Enumerate one
Example is that process circuit 112 exceedes defined threshold value after position-sensing switch is pressed from the transtation mission circuit 104c amount of movements received
In the case of, it is determined as that portable FPD104 generates movement.
On the other hand, in the case where x-ray bombardment scope is consistent with X-ray detection scope (step 108 is affirmed), processing
Circuit 112 determines whether that having accepted the driving relevant with fine setting from operator operates (step 109).For example, operator passes through
Irradiation subject P1 irradiation field lamp come confirm by process circuit 112 adjust after x-ray source 101 position and orientation under X
Radiation exposure scope, determines whether to carry out the fine setting of x-ray bombardment scope.It is that operator is not in order to affected part to enumerate one
X-ray irradiation in addition, and x-ray bombardment scope is confirmed by irradiation field lamp, the position beyond affected part is contained in roentgenogram
It is judged as being finely adjusted in the case of in the range of penetrating.Here, in the case where being judged as carrying out the fine setting of x-ray bombardment scope,
The driving that the position for changing x-ray source 101 or direction are performed while operator is referring for example to irradiation field lamp is operated, is used for
Adjust driving operation of aperture of blade of diaphragm etc..If driving operation (step 109 is affirmed) is accepted from operator, with accepting
Operation correspondingly, process circuit 112 makes drive device driving control position and the direction of x-ray source 101, or penetrates X
Line aperture device 103 drives to control the aperture (step 110) of blade of diaphragm.
Process circuit 112 accepts (step in the case that driving is operated after the end of step 110 or not from operator
109 negatives), judge whether radiation button has been pressed (step 111).(walked in the case where radiation button is not pressed herein
Rapid 111 negative), process circuit 112 turns into holding state.On the other hand, (the step in the case where radiation button has been pressed
111 affirmatives), process circuit 112 is to subject P1 radiation X rays and carries out after the shooting (step 112) of radioscopic image, terminates
Processing.
In addition, process circuit 112 can also be following situation:In step 106, the position of setting top plate 106, X-ray
Diaphragm aperture, rotation amount of x-ray diAN_SNhragm device 103 of aperture device 103 etc., in step 107, make diagnostic bed drive device
108th, x-ray diAN_SNhragm device 103 drives.In addition, process circuit 112 can also be following situation:In step 109, from operation
Person accepts the position of top plate 106, rotation amount of x-ray diAN_SNhragm device 103 etc., is operated as driving.In addition, process circuit 112
It can also be following situation:In step 110, act diagnostic bed drive device 108.Alternatively, it is also possible to being following situation:No
Carry out step 109 from operator driving operation accept and step 110 drive device and x-ray diAN_SNhragm device 103
Driving.
In addition, process circuit 112 can also be following situation:In step 105, do not obtain portable FPD104 relative to
The rotation information of top plate 106, and only obtain positional informations of the portable FPD104 relative to top plate 106.In addition, in this case,
The sensor for the movement for sensing portable FPD104 that displacement detecting circuit 104b possesses can also be 1.
As described above, according to first embodiment, the X-ray that portable FPD104 detections are irradiated from X-ray tube 102.
Top plate 106 is used to load portable FPD104 and subject P1.Obtain function 112a and obtain portable FPD104 relative to top
The positional information of plate 106.Control function 112b based on obtain function 112a acquired by positional information, X-ray tube 102 relative to
The positional information of top plate 106, sets the irradiation condition related to the range of exposures of X-ray.
Here, control function 112b can be based on portable FPD104 relative to top plate 106 positional information, X-ray tube
102 relative to top plate 106 positional information, obtain the positional information of portable FPD104 relative to X-ray tube 102, setting and X
The related irradiation condition of the range of exposures of ray.Therefore, the radiographic apparatus 1 of first embodiment by by with X-ray
The adjustment automation of the related irradiation condition of range of exposures, can reduce the homework burden of operator, improve and check efficiency.
In addition, according to first embodiment, control function 112b is using portable FPD104 relative to X-ray tube 102
Positional information, calculates the bias between x-ray bombardment scope and portable FPD104 X-ray detection scope, with to deviateing
Measure the mode being modified and set the irradiation condition related to the range of exposures of X-ray.Therefore, the X-ray of first embodiment
Diagnostic device 1 can set irradiation condition in the way of x-ray bombardment scope is contained in X-ray detection scope, can avoid
Unnecessary radiation is carried out to subject P1.
In addition, according to first embodiment, control function 112b is also examined in addition to portable FPD104 positional information
Rotation information is considered, to set the irradiation condition related to the range of exposures of X-ray.Therefore the radiodiagnosis of first embodiment
Device 1 can also make x-ray bombardment scope and X-ray in the case where portable FPD104 is rotated on top plate 106
Detection range is consistent, be able to can avoid entering to be about to portable FPD104's while carrying out unwanted radiation to subject P1
The shooting that X-ray detection scope is farthest applied flexibly, it is possible to increase check efficiency.
In addition, the radiographic apparatus 1 of first embodiment moved freely through in operator it is portable on top plate 106
Behind formula FPD104 position, the contraposition between X-ray detection scope and x-ray bombardment scope is automatically carried out.Therefore, according to
One embodiment, for example, when the subject P1 that can not be moved to body is checked, operator is without making subject
P1 is moved, and automatically Portable handheld formula FPD104 position, thus, it is possible to carry out pair between affected part and portable FPD104
Position, it is possible to increase check efficiency.
In addition, in the radiographic apparatus 1 of first embodiment, based on from the portable FPD104 amount of movements sent
Information, process circuit 112 sets the irradiation condition related to the irradiation condition of X-ray.Thus, for example, not possessing portable FPD
Radiographic apparatus be existing, the radiographic apparatus is being added in the case that portable FPD104 carrys out use, place
Reason circuit 112 is automatically set the irradiation condition related to the irradiation condition of X-ray, so as to improve inspection efficiency.
In addition, the radiographic apparatus 1 of first embodiment is by obtaining portable FPD104 relative to top plate 106
Positional information, to set the irradiation condition related to the range of exposures of X-ray.The top plate being close to when i.e., by then passing through shooting
Sensing detection between 106 and portable FPD104 obtains portable FPD104 positional information, therefore, first embodiment
Radiographic apparatus 1 can be not limited to take from the sensing detection of subject P1 electric wave, ultrasonic wave, the magnetic flux etc. transmitted
Obtain portable FPD104 positional information.
In addition, the radiographic apparatus 1 of first embodiment bring shadow without meeting to the X-ray transmitted from top plate 106
Loud composition, therefore, just can use X-ray detector 107 to be clapped by the way that portable FPD104 is taken away from top plate 106
Take the photograph.Therefore, in first embodiment, radiographic apparatus 1 can correspondingly select the detection in X-ray with the purpose of inspection
It is middle to use which of portable FPD104 or X-ray detector 107, it is possible to increase to check efficiency.
(second embodiment)
Above first embodiment is illustrated, but in addition to above-mentioned first embodiment, can also be led to
Various different modes are crossed to implement.
In above-mentioned first embodiment, illustrate to detect the displacement detecting circuit of portable FPD104 amount of movement
The situation that 104b is possessed by portable FPD104.But embodiment not limited to this, for example as shown in Figure 8 or can
The framework 205 for being installed on portable FPD204 detects the situation of amount of movements of the portable FPD204 on top plate 106.Hereinafter, join
One of the portable FPD204 of second embodiment is illustrated according to Fig. 8.In addition, Fig. 8 represents second embodiment
The portable FPD figure of one.
For example, the portable FPD204 of second embodiment possesses X-ray detection circuit 104a and transtation mission circuit 104c, X
Ray detection circuit 104a detects the two-dimensional intensity distribution data of X-ray, and transtation mission circuit 104c examines X-ray detection circuit 104a
The two-dimensional intensity distribution data measured are sent to process circuit 112.In addition, as shown in Figure 8, second embodiment it is portable
Formula FPD204 is provided with framework 205.Framework 205 possesses displacement detecting circuit 104b and transtation mission circuit 104c, displacement detecting circuit
104b detects the movement of the portable FPD204 on top plate 106 by the sensor (such as optical sensor) of sensing movement
Amount, the amount of movement that transtation mission circuit 104c detects displacement detecting circuit 104b is sent to process circuit 112.Second embodiment
Coordinate and amount of movement of the acquirement function 112a based on reference position, obtain it is suitable with portable FPD204 overall scope
Coordinate or the coordinate suitable with X-ray detection scope.In addition, portable FPD204 is relative to the installation site of framework 205
Information is previously stored in storage circuit 111.
As described above, according to second embodiment, it is installed on portable FPD204 framework 205 detection top plate 106
Portable FPD204 amount of movement, obtain function 112a and obtain positional informations of the portable FPD204 relative to top plate 106.Cause
This, it is portable by the way that framework 205 is installed in the case that portable FPD204 does not possess the sensor of sensing movement
FPD204 so that the radiographic apparatus 1 of second embodiment can obtain portable FPD204 positional information, setting and X
The related irradiation condition of the range of exposures of ray, thus, it is possible to improve inspection efficiency.
Illustrate that radiographic apparatus 1 possesses in first and second above-mentioned embodiment and obtain function for execution
The situation of 112a, control function 112b and image systematic function 112c process circuit 112, but embodiment is not limited to
This.It for example can also be the situation that portable FPD104 possesses the process circuit that function 112a is obtained for execution.In this case,
Portable FPD104, which possesses, detects that the X-ray irradiated from X-ray tube 102, the portable FPD104 of acquirement are portable relative to being placed with
The acquirement function 112a of the positional information of formula FPD104 and subject P1 top plate 106.
In addition, illustrating that the detection of X-ray, generation X are carried out by FPD penetrates in first and second above-mentioned embodiment
The situation of line image.However, embodiment not limited to this, the image recording media such as can also be to use film or imaging plate
To generate the situation of radioscopic image.It is to be provided with film or the camera obscura of imaging plate possesses displacement detecting circuit to enumerate one
104b, transtation mission circuit 104c etc., by detecting the amount of movement of the camera obscura on top plate 106, radiographic apparatus 1 can be obtained secretly
Casket, based on the positional information of acquired camera obscura, is set related to the range of exposures of X-ray relative to the position of top plate 106
Irradiation condition.
In addition, illustrating that control function 112b carries out the irradiation model with X-ray in first and second above-mentioned embodiment
Enclose the setting of the irradiation condition of correlation, the situation in set irradiation condition X-ray irradiation.However, embodiment is not limited to
This, for example, can also be following situation:X-ray tube 102 and portable FPD104 or portable set by decision person
FPD204 position relationship.Enumerating one is, in the case where operator manually sets x-ray bombardment scope, controls work(
Energy 112b calculates the bias between x-ray bombardment scope and X-ray detection scope, is more than in the bias calculated defined
In the case of value, not X-ray irradiation is controlled into.In this case, when operator carries out the adjustment of x-ray bombardment scope, control
Function 112b carries out the judgement of position relationship, the x-ray bombardment scope situation consistent with X-ray detection scope can be passed through into sound
Sound or picture are shown etc. to be notified to operator.
In addition, illustrating that displacement detecting circuit 104b detects portable FPD104 in first and second above-mentioned embodiment
Or portable FPD204 amount of movement, calculate portable FPD104 in process circuit 112 or portable FPD204 is relative
In the situation of the positional information of top plate 106.However, embodiment not limited to this, such as can also be displacement detecting circuit 104b
Amount of movement based on portable FPD104 or portable FPD204 calculates portable FPD104 relative to top plate 106 or portable
Formula FPD204 positional information, transtation mission circuit 104c are by portable FPD104 relative to top plate 106 or portable FPD204
The situation that positional information is sent to process circuit 112.That is, function 112a is obtained to obtain portable FPD104 relative to top plate
106 or portable FPD204 positional information, can be that the situation of oneself calculating location information or accept is calculated
The situation of the positional information gone out.
In addition, in first and second above-mentioned embodiment, positional information, hand based on the reference position on top plate 106
Carry formula FPD104 or portable FPD204 obtained from the amount of movement of reference position portable FPD104 relative to top plate 106 or
The portable FPD204 of person positional information, but embodiment not limited to this, for example, radiographic apparatus possess flatly according to
The light source of light and the sensor of light sensing are penetrated, can be by situation about being blocked by sensor light sensing by portable FPD
To obtain positional informations of the portable FPD104 relative to top plate 106.
In addition, for example, show A~C 3 reference positions in Fig. 5, but by making the quantity of reference position fully
It is many, it can select to be located at the reference position of the lower section of the affected part of subject, to set portable FPD104, thus, without hand
Positional informations of the portable FPD104 relative to top plate 106 can just be obtained by proposing the detection of formula FPD104 amount of movement.
Each inscape of each device of first and second embodiment is the key element of concept of function, it is not necessary to necessarily pressed
Constituted according to physically illustrating like that.That is, scattered, the specific mode that is integrating of each device are not limited to the situation of diagram, can
According to various loads and behaviour in service etc. come by its all or part according to arbitrary unit come feature or physical
Ground disperses, constituted with integrating.And then, the whole or an arbitrary part of each processing function carried out by each device can pass through
CPU and realized, or can be realized as the hardware based on wired logic by the CPU parses the program performed.
In addition, the control method illustrated by first and second embodiment can be by personal computer, work station etc.
Pre-prepd control program is performed in computer to realize.The control program can be issued via networks such as internets.This
Outside, the control program is recorded in the recording medium that hard disk, floppy disk (FD), CD-ROM, MO, DVD etc. can be read by computer,
It is able to carry out by being read by computer from recording medium.
At least one embodiment from the description above, it is possible to increase used the inspection of portable x-ray detector
Efficiency.
Several embodiments of the invention is explained above, these embodiments indicate to point out as an example, and unexpectedly
The scope of invention to be limited.These embodiments can be implemented in other various modes, can not depart from the main idea of invention
In the range of carry out it is various omit, displacement, change.These embodiments and its deformation are contained in the scope of invention and main idea,
It is again included in invention and its equivalent scope described in claims.
Claims (9)
1. a kind of radiographic apparatus, wherein, possess:
X-ray detector, detects the X-ray irradiated from X-ray tube;
Top plate, for loading the X-ray detector and subject;
Obtaining section, obtains positional information of the X-ray detector relative to the top plate;And
Control unit, the position based on the positional information acquired by the obtaining section and the X-ray tube relative to the top plate
Information, sets the irradiation condition related to the range of exposures of X-ray.
2. radiographic apparatus as claimed in claim 1, wherein,
The control unit is set in the way of the detection range that the range of exposures of the X-ray is contained in the X-ray detector
The fixed irradiation condition.
3. radiographic apparatus as claimed in claim 1 or 2, wherein,
It is also equipped with:
Displacement detecting portion, is arranged at the X-ray detector, detects amount of movement of the X-ray detector on the top plate,
Positional information of the obtaining section based on the reference position on the top plate, the amount of movement from the reference position,
Obtain positional information of the X-ray detector relative to the top plate.
4. radiographic apparatus as claimed in claim 3, wherein,
The X-ray detector is provided with multiple displacement detecting portions,
Amount of movement that the obtaining section is also detected respectively based on the multiple displacement detecting portion obtains the X-ray detector
Relative to the rotation information of the top plate.
5. radiographic apparatus as claimed in claim 3, wherein,
The position that operator selects from multiple positions on the top plate is set as the reference position by the obtaining section.
6. radiographic apparatus as claimed in claim 3, wherein,
The displacement detecting portion possesses optical sensor, the surface of the top plate recognized based on the optical sensor
Pattern detect the amount of movement.
7. radiographic apparatus as claimed in claim 3, wherein,
The displacement detecting portion possesses spheroid, and the amount of movement is obtained based on the rotation of the spheroid on the top plate.
8. radiographic apparatus as claimed in claim 1, wherein,
The position of the control unit setting top plate, the position of the X-ray tube, the rotation amount of the X-ray tube, X-ray
At least one in the rotation amount of the diaphragm aperture of aperture device and the x-ray diAN_SNhragm device, is used as the irradiation condition.
9. a kind of X-ray detector, detects the X-ray irradiated from X-ray tube, wherein,
Possess:
Obtaining section, obtains position of the X-ray detector relative to the top plate for being placed with the X-ray detector and subject
Information.
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WO2015166575A1 (en) * | 2014-05-01 | 2015-11-05 | 株式会社島津製作所 | Radiation tomography device |
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