CN1696676A - X-ray CT apparatus - Google Patents
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- CN1696676A CN1696676A CN 200510070473 CN200510070473A CN1696676A CN 1696676 A CN1696676 A CN 1696676A CN 200510070473 CN200510070473 CN 200510070473 CN 200510070473 A CN200510070473 A CN 200510070473A CN 1696676 A CN1696676 A CN 1696676A
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Abstract
PROBLEM TO BE SOLVED: To provide X-ray CT system capable of intuitively determining whether an intentional tomographic image is obtained at a region capable of acquiring X-ray transmission data, in its turn, at the position of a subject at the present point of time without rotating the subject placed on a rotary stage and obtaining the X-ray fluoroscopic image of the subject.
Description
The application requires the Japanese patent application No.2004-145320 based on submission on May 14th, 2004, and the foreign priority of the Japanese patent application No.2004-249821 that submitted on August 30th, 2004.Its full content is hereby incorporated by.
Technical field
The present invention relates to be used for industrial purposes with the tomography X ray image (tomograph) that obtains industrial products such as electronic component so that check X ray CT (robot calculator fault imaging) device of the inherent vice, inner structure etc. of these industrial products with lossless manner.
Background technology
According to the X ray CT device that is used for industrial purposes, usually, briefly show as front elevation 11A and plane Figure 11 B, universal stage 53, it rotates around the turning axle R vertical with the X ray optical axis L, is set between x-ray source 51 and the X-ray detector 52.Remain at object under the state of universal stage 53,, each predetermined minute angle of universal stage 53 is rotated, can obtain the X ray transmission data from X-ray detector 52 when to object W radiation X ray.Rebuild the cross-sectional image (for example, with reference to JP-A-2004-117024) of (reconstruct) object W by using the X ray transmission data that obtains along the plane vertical with the turning axle R of universal stage 53.Usually, travel mechanism 54 can the optical axis direction (x-direction of principal axis) of X ray and perpendicular to this x-mobile universal stage 53 on axial y-axle and the z-direction of principal axis.
Obtain the X ray transmission data so that obtain each method of the cross-sectional image of object by using such X ray CT device to be used to, shown in the floor map among Figure 12, regional normal scan method and shifted scanning method are arranged.In the normal scan method, the rotation center O of object W
nBe positioned almost on the optical axis L of X ray.In the shifted scanning method, the rotation center O of object W '
oBe offset a preset distance (for example, with reference to JP-A-2004-11704) from the optical axis L of X ray.Though the shifted scanning method compared with the normal scan method come SN (noise) than last can variation, the shifted scanning method has an advantage, i.e. the rink corner of CT imaging can enlarge and can obtain the cross-sectional image of high-res.
In the correlation technique X ray CT device, usually, seeing that the X ray transmission image of object is finished the location of object and the change of magnification.In other words, certainly,, must obtain the X ray transmission data of on cross-sectional image, being had a few for the cross-sectional image that obtains to want.Yet, for obtain object in the precalculated position the complete cross-sectional image of (highly), for example, according to the normal scan method, object requires to be located in such position and makes when object W rotates a week, object W on this height by X ray intactly prolonged exposure to obtain cross-sectional image, shown in the object W among Figure 12.According to the shifted scanning method, shown in the object W ' among Figure 12, object W ' requires to be positioned such position makes when object rotates a week do not have not by the zone of x-ray bombardment in object W '.Yet, such situation can appear, depend on promptly based on universal stage 53 and X-ray detector 52 and amplify that above-mentioned condition can not satisfy with respect to the image that the position of x-ray source 51 on x-axle (optical axis L of X ray) direction concerns.
Thereby, in the correlation technique X ray CT device, before obtaining the X ray transmission data of object, require to be placed in object on the universal stage 53 and one week of target rotation simultaneously radiation X ray to object.In addition, whether the confirmation request object is placed on the position of satisfying based on the above-mentioned condition of the X ray transmission image that obtains at time point separately.In addition, when definite above-mentioned condition is not satisfied, require to change the position and/or the position of X-ray detector 52 on the x-direction of principal axis of universal stage 53.In this mode, the correlation technique X ray CT device has trouble of affirmation step that a problem comes to this.
Summary of the invention
Consider above-mentioned situation, an object of the present invention is to provide X ray CT device, it can not rotate the object that is placed on the universal stage and reach the zone that does not obtain the X ray transmission image of object and directly calculate the X ray transmission information of acquisition, and the cross-sectional image that whether can obtain to want in the position of object on this external present time point.
For achieving the above object, X ray CT device according to the present invention is such X ray CT device, comprises
Be used for the x-ray source of radiation X ray to the object;
Arrange relatively, be used to obtain the X-ray detector of the X ray transmission data of object with x-ray source;
The universal stage that keeps object and rotate on it around its turning axle vertical with the X ray optical axis, this universal stage is arranged between x-ray source and the X-ray detector;
By using the X ray transmission data of the object that when rotating universal stage, in each rotation of universal stage predetermined angular, obtains, be used to obtain the image reconstruction calculating unit of object edge perpendicular to the cross-sectional image on the plane of turning axle;
Be used for taking the optical camera that is placed in the object on the universal stage from the turning axle position of universal stage or the position of contiguous this turning axle;
Based on concerning in the position of X ray optical axis that with x-ray source, X-ray detector and universal stage relevant information reaches and the relevant information of size of the optical receiving surface of X-ray detector, be used to calculate the CT imaging region calculating unit that is imaged as possible zone around turning axle CT; And
Be used to show the display unit in the zone of the optical imagery that is applied the object of taking by optical camera that calculates by CT imaging region calculating unit.
The present invention can use optical camera to remain on structure on the universal stage.
Preferably, the present invention can use such structure, be that X ray CT device also comprises functional unit, this regional size that it shows on the screen that changes on the display unit screen at display unit, and controller, change operation that it is relevant to this functional unit automatically changes universal stage and the X-ray detector position on the X ray optical axis one of at least, makes that zone and the actual CT on screen is imaged as possible area coincidence.
The present invention can use such structure, be that X ray CT device also comprises transfer table, it is placed on the universal stage and mounting object on it, it is gone up in vertical with the X ray optical axis direction with one and also vertical with the turning axle direction direction (y-direction of principal axis) of X ray optical axis direction (x-direction of principal axis) and moves, wherein by on the optical imagery of the object that shows on the display unit screen, specifying rotation center, or, make at the rotation center of appointment on the optical imagery or on the turning axle that is centrally located in universal stage in the zone after moving by coming mobile transfer table moving the zone be presented on the display unit screen on the screen.
The object of the invention be by finish based on x-ray source on the optical axis direction of X ray relative universal stage and the simple geometric of the position of X-ray detector relation calculate, and obtain to have turning axle with universal stage is that the CT at center is imaged as possible zone (circle), and solves the problems referred to above in this zone that demonstration on the display unit has been applied the optical imagery of the object on universal stage.
In other words, according to the present invention, optical camera from the turning axle position of universal stage or contiguous its position take the object that is placed on the universal stage, on display unit, show the object of taking so thus.Then, obtaining to have turning axle with universal stage is that the CT at center is imaged as possible zone and is added on the screen.Thereby, thereby the X ray transmission image of non-radiating X ray display object to the object of universal stage, and do not rotate universal stage yet, and may directly calculate the X ray transmission data that whether can obtain to be used to the cross-sectional image that obtains wanting, be suitable whether promptly in the position of time point object at present.
Be used for taking optical camera at the object on the universal stage and only require that it is positioned at the turning axle position when object is taken from the turning axle position.For example, optical camera can be fixed on an arbitrary position as universal stage on the device frame and when object is taken can be placed on optical camera just in time below.Selectable, optical camera can be arranged to movably and can be positioned on the turning axle when object is taken.Yet, according to the present invention, when using such arrangement, promptly optical camera be maintained at universal stage make be set to always with turning axle in line, be not must mobile universal stage or optical camera when object is taken.In addition, according to the present invention, the turning axle of universal stage does not require with the optical axis of optical camera and aims at fully, and optical camera only requires almost to aim at turning axle, that is, compare with the rink corner of optical camera, aims at turning axle or near turning axle.
In addition, as mentioned above, the possible area coincidence of zone that on display unit, shows and actual CT imaging (that is, when object is taken by optical camera be possible in this zone C T imaging).Yet, according to the present invention, the big I that is presented at the zone on the display unit screen changes arbitrarily by the operator, and be relevant to this change operation, the position of universal stage and/or the X-ray detector position on the X ray optical axis direction can be changed automatically, makes that zone and the CT on screen is imaged as this possible actual area coincidence.According to such structure, for example, when the operator has confirmed on screen, for example the reference position of object is improper and be not set at CT and be imaged as possible zone, only require operation so that changing to be presented at is of a size of the size that covers this object on the screen, automatically move according to this operation in universal stage and/or X-ray detector zone thus.Thereby, may make the positioning action (amplify and change operation) of object become convenient significantly.
In addition, for the situation that obtains the CT image in the attention zone of object, this attention zone is positioned at CT imaging or the shooting that rotation center is finished object then, can obtain thus around the cross-sectional image with high power in this attention zone.Yet according to the present invention, rotation center is specified on the optical imagery of the object on the screen that is shown in display unit, perhaps, moves the CT that is presented on the display unit and is imaged as possible zone.Therefore, the transfer table that is arranged on mounting object on the universal stage its moves automatically, thereby this object moves automatically, makes that specifying in the Mobility Center that rotation center on the optical imagery or CT be imaged as possible zone is located on the rotation center of universal stage.According to such structure, conveniently and be guaranteed variable to the CT image-forming step in this attention zone of object.
Description of drawings
Fig. 1 is the diagram that the structure of the embodiment of the invention is shown, and a synoptic diagram that the physical construction of embodiment is shown wherein both had been shown a block diagram that the system architecture of embodiment is shown also is shown;
Fig. 2 illustrates the explanatory diagram of example that CT in embodiments of the present invention is imaged as the demonstration in a possible zone;
Fig. 3 is used for explaining using in embodiments of the present invention under the normal scan method situation, represents CT to be imaged as the diagram of size calculation method of the circle C in possible zone;
Fig. 4 is used for explaining using in embodiments of the present invention under the shifted scanning method situation, represents CT to be imaged as the diagram of size calculation method of the circle C in possible zone;
Fig. 5 is the diagram that the structure of another embodiment of the present invention is shown, and a synoptic diagram that the physical construction of embodiment is shown wherein both had been shown a block diagram that the system architecture of embodiment is shown also is shown;
Fig. 6 is the diagram that is used for the operation of key drawing 5 embodiment, and the schematic plan view of the state of the initial arrangement of representing x-ray source 1, X-ray detector 2, universal stage 3 and transfer table 30 is shown;
Fig. 7 is the explanatory diagram of example that is illustrated in the demonstration of the display unit 14 in Fig. 6 state;
Fig. 8 is the diagram that is used for the operation of key drawing 5 embodiment, and after performance is shown specifies rotation center to move transfer table 30 on by the screen at the display unit 14 of Fig. 7, the schematic plan view of the arrangement state of various piece;
Fig. 9 is the explanatory diagram of example that is illustrated in the demonstration of the display unit 14 in Fig. 8 state;
Figure 10 illustrates after pass through the diameter of change at the circle C of the display screen of Fig. 9, moving universal stage 3 with platform driving mechanism 4 schematic plan view of the arrangement state of various piece.
Figure 11 A and Figure 11 B are the synoptic diagram that the example of structure of the correlation technique X ray CT device that is used for industrial purposes is shown, and wherein, Figure 11 A illustrates front elevation, and Figure 11 B illustrates the planimetric map of this device.
Figure 12 is used for explaining being used for the industrial purposes X ray CT device, according to the diagram of the preparation method of the X ray transmission data of normal scan method and shifted scanning method.
Embodiment
Below, explain one embodiment of the present of invention with reference to the accompanying drawings.
Fig. 1 is the diagram that the structure of the embodiment of the invention is shown, and a synoptic diagram that the physical construction of embodiment is shown wherein both had been shown a block diagram that the system architecture of embodiment is shown also is shown.
In the CT imaging or when taking, when the object W of X-radiation on being placed in universal stage 3, universal stage rotates around turning axle R.Then, in each rotation of universal stage, CT image reconstruction calculating unit 13 reads the X ray transmission data of supplying with from X-ray detector 2 with the small anglec of rotation.CT image reconstruction calculating unit 13 makes up each cross-sectional image along the x-y planar slice vertical with turning axle R of object W based on the X ray transmission data of 360 degree of the object W that supplies with from X-ray detector, and shows this cross-sectional image on display unit 14.
Above universal stage 3, the optical camera of being made up of CCD (charge-coupled image sensor) camera and camera lens 5 is set to along turning axle R directed in orthogonal below.Optical camera 5 is connected to platform driving mechanism 4 by pillar (not shown) etc., and optical camera is according to universal stage 3 moving and move on x-axle, y-axle and z-direction of principal axis thus, and optical camera 5 can always be positioned at the turning axle R of universal stage 3 and aim at like this.
From the picture signal of optical camera 5, promptly universal stage 3 is delivered in the computing machine 15 by collection plate (capture board) 15a with the picture signal that is placed in the object W on the universal stage 3, and is presented on the display unit 14 as image.Computing machine 15 connects on the CT image reconstruction calculating unit 13.Computing machine 15 is based on going out around the CT of turning axle R to be imaged as possible zone from the x-axle of the universal stage 3 of CT image reconstruction calculating unit 13 and the coordinate Calculation of y-axle, and on display unit 14, show calculated thus stack object W image and should the zone.Fig. 2 illustrates an example of such demonstration.In Fig. 2, these symbols are represented corresponding image respectively.In the drawings, shown that the representative CT of the image that has been applied universal stage 3 and the object W on it is imaged as the circle C in possible zone.The center of circle C and turning axle R overlap.The functional unit 16 that is made of keyboard, mouse etc. is connected to computing machine 15.Can change the diameter that the representative CT that shows is imaged as the circle C in possible zone arbitrarily by operating operation parts 16 on display unit 14.According to the change of this diameter, computing machine 15 automatic transfer table driving mechanisms 4 as described below.
The big I of representing CT to be imaged as the circle C in possible zone is calculated according to following geometrical calculation.Fig. 3 is the diagram that is used for explaining in the computing method of the situation of normal scan method, and Fig. 4 is the diagram that is used for explaining in the computing method of the situation of shifted scanning method.
In the situation of normal scan method, as shown in Figure 3, the turning axle R of universal stage 3 is set to so that aim at the optical axis L of X ray.In this case, suppose that the distance between x-ray source 1 on the x-direction of principal axis (being called focus later on) and turning axle R is A, distance between the optical receiving surface of x-ray source 1 on the x-direction of principal axis and X-ray detector 2 is B, the effective width of X-ray detector 2 on the y-direction of principal axis is D, and the diameter Δ of representing CT to be imaged as the circle C in possible zone can be expressed by following expression 1.
Δ＝D×A/B
On the other hand, in the situation of shifted scanning method, as shown in Figure 4, the center relative rotation axi R that object W is arranged so that object W at y-direction of principal axis superior displacement value Y.Off-set value Y sets as for example expression 2.
Y＝0.8×(D/2)×(A/B)
In this case, the diameter Δ of representing CT to be imaged as the circle C in possible zone can be expressed by following expression 3.
Δ＝D×A/B+2Y
In normal scan method and shifted scanning method,, can obtain the cross-sectional image of optional position section on the z-direction of principal axis when the image of object W is positioned in when representing CT to be imaged as in the circle C in possible zone.Thereby, based on as in Fig. 2 exemplary display image on display unit 14, the operator can directly calculate object W and whether be suitable for the cross-sectional image that obtains to want in the present position of time point.
Then, represent CT to be imaged as in the circle C in possible zone so can not obtain under the situation of complete cross-sectional image of object W at the image of object W, although or the image of object W is in circle C but the image of object W is too little so can determine that operator's operating operation parts 16 change the diameter of circle C on display unit under the less situation of the magnification of cross-sectional image compared with the size of circle C.According to the change of the diameter of circle C, actual CT is imaged as possible zone and does not overlap with circle C area surrounded on this time point.Yet,, make circle C area surrounded and actual CT be imaged as possible area coincidence because computing machine 15 driving platform driving mechanisms 14 automatically are relevant to the diameter of circle C on the x-direction of principal axis change operates mobile universal stage 3.The amount of movement of universal stage can calculate by calculating value A, and the diameter of A can be by substituting circle C in expression formula 1 and 2 diameter Δ after for a change numerical value B simultaneously calculated for fixing (being set at fixed value).
According to embodiment, the operator can directly calculate on present time point the cross-sectional image of wanting that the position of universal stage 3 whether is suitable for obtaining object W.In addition, the only operation of the diameter by finishing the circle C that change shows on the screen of display unit 14, universal stage 3 can be moved automatically, makes that circle C and the actual CT after changing is imaged as possible area coincidence.Like this, can quite easily finish setting and change operation.
Though previous embodiment illustrates when changing the diameter of circle C, the example that universal stage 3 moves on the x-direction of principal axis.Even X-ray detector 2 moving on the x-direction of principal axis or universal stage 3 and X-ray detector 2 all move on the x-direction of principal axis, also can obtain the similar effect to previous embodiment.
In addition, previous embodiment makes up by this way, and promptly optical camera 5 is fixed to platform driving mechanism 4, and optical camera 5 is also according to the moving move of platform driving mechanism 4 thus, like this optical camera 5 always be positioned at universal stage 3 turning axle R directly over.Selectively, optical camera 5 can be fixed on for example frame of device or the like.In this situation, at reference object W when obtaining its optical imagery, platform driving mechanism 4 be driven and the turning axle R of position rotating platform 3 so that the optical axis alignment of itself and optical camera 5.Object W is taken to obtain its optical imagery then, and the optical imagery of object W is stored in the storer, is moved and is arranged on the position that can take the CT image by driving platform driving mechanism 4 universal stages 3.Display unit 14 can only show the image that has the object in the storer.Selectively, the present invention can dispose like this, promptly is provided for driving the mechanism that optical camera 5 moves on x-axle and y-direction of principal axis, like this at reference object W when obtaining its optical imagery, optical camera 5 is moved and aims at the turning axle R of universal stage 3.In addition, in the aforementioned embodiment, aim at though optical camera 5 is provided so that with turning axle R, the center of the visual field of optical camera 5 and not requiring with turning axle R overlaps fully, as long as the center of the visual field of CCD camera almost overlaps just enough with turning axle R.In this situation, though turning axle R departs from the center of the image of being taken by optical camera 5, when the position of known turning axle R on image, by demonstration be applied image that optical camera 5 takes and be the circle C at center with the position of turning axle R, can obtain the effect similar to afore-mentioned.
Below, explain an alternative embodiment of the invention.Fig. 5 is the diagram that the structure of this embodiment is shown, and a synoptic diagram that the physical construction of embodiment is shown wherein both had been shown a block diagram that the system architecture of embodiment is shown also is shown.
The feature of this embodiment provides on universal stage 3, mounting object W and move the transfer table 30 of object W at x-axle and y-direction of principal axis on it, and the transfer table controller 31 that is provided for driving automatically transfer table 30.Except other structures of this embodiment of these features are identical with previous embodiment, therefore omit its detailed explanation.
Transfer table 30 on universal stage 3 is by drive and control from transfer table controller 31.Transfer table controller 31 is under the control of computing machine 15.According to the appointment of operator to rotation center, computing machine 15 is as described below by transfer table controller 31 automatic mobile transfer tables 30.
That is, when x-ray source 1, X-ray detector 2, universal stage 3 and transfer table 30 being provided with shown in the schematic plan view among Fig. 6, be displayed on the display unit 14 as the image shown in instant among Fig. 7.In this situation, when going for the cross-sectional image that has than the attention zone V of the object W of the bigger magnification of setting in the current time, mouse of operator's operating operation parts 16 etc. and on the screen of display unit 14, click and notice that regional V specifies rotation center thus.According to this appointment, computing machine 15 is to the transfer table controller 31 automatically mobile thus transfer table 30 of giving an order, and makes that appointed positions is set up on screen to aim at turning axle R universal stage 3.This state as shown in Figure 8.Screen at the display unit 14 of this state is shown in Figure 9.
Next, based on representing CT to be imaged as the change of diameter of the circle C in possible zone, take magnification by automatic change, and change the regional shooting magnification of this attentions to the numerical value of wanting.In this case, by the diameter of the circle C that diminishes, computing machine 15 drives and control desk driving mechanisms 4 by platform controller 12, thus as Figure 10 immediately mobile universal stage 3 on the x-direction of principal axis that is shown in and the direction near x-ray source.When the CT imaging is finished in this state, can obtain around the cross-sectional image of noting regional V with big magnification.Thereby the operator only operates mouse etc. perceptually on the screen of display unit 14, and each mechanism is just driven automatically and controls and reaches optimum set condition then.
This embodiment illustrate when note regional V be positioned in turning axle R on time, on the screen of display unit 14, specify the example of rotation center.Optionally, the circle C that the representative CT that shows on display unit 14 is imaged as possible zone can be dragged by mouse etc., moves and is positioned at around the zone of noting regional V.In this case, computing machine 15 issues commands to transfer table controller 31 with mobile transfer table 30, makes that circle C and the turning axle R after moving overlaps, and can obtain the effect similar substantially to previous embodiment thus.
According to the present invention, owing to being imaged as the optical imagery that possible zone has been applied the object of being taken by optical camera, CT shows, and can be easily and directly calculate object whether and be placed in and can finish the CT imaging wanted or the position of shooting.
In addition, according to the present invention, the present invention can make up by this way, promptly is relevant to change the operation that the CT that is presented on the screen is imaged as the size in possible zone, automatic mobile universal stage and/or X-ray detector, the zone behind feasible the change is imaged as possible area coincidence with actual CT.Thereby can make positioning action become obviously convenient to object.
In addition, according to the present invention, the present invention can make up by this way, promptly by specifying in the rotation center of the optical imagery that is presented at the object on the screen, or be imaged as possible zone by moving the CT be also shown on the screen, the position of transfer table by control automatically make appointment rotation center or move after the CT center rotation center with universal stage reality that be positioned that is imaged as possible zone aim at.According to such structure, can be directly and easily finish to any CT image-forming step of noting the zone in object.
Obviously, those skilled in the art can not break away from the spirit or scope of the present invention the described preferred embodiment of the present invention is made various modifications and variations.Therefore, the present invention is interpreted as covering all and the scope and the consistent modifications and variations of the present invention of equivalent of claim.
Claims (8)
1. X ray CT device comprises:
Be used for the x-ray source on radiation X ray to an object;
Arrange relatively, be used to obtain the X-ray detector of the X ray transmission data of object with x-ray source;
Universal stage keeps this object on it and around its turning axle vertical with X ray optical axis rotation, this universal stage is arranged between x-ray source and the X-ray detector;
By using the X ray transmission data of the object that when rotating universal stage, in each rotation of universal stage predetermined angular, obtains, be used to obtain the image reconstruction calculating unit of object edge perpendicular to the cross-sectional image on the plane of turning axle;
Be used for taking the optical camera that is placed in the object on the universal stage from the turning axle position of universal stage or the position of contiguous this turning axle;
Based on concerning in the position of X ray optical axis direction that with x-ray source, X-ray detector and universal stage relevant information reaches and the relevant information of size of the optical receiving surface of X-ray detector, be used to calculate the CT imaging region calculating unit that is imaged as possible zone around turning axle CT; And
Be used to show the display unit in the zone of the optical imagery that calculates by CT imaging region calculating unit and be applied the object of taking by optical camera.
2. X ray CT device as claimed in claim 1, wherein optical camera is maintained on the universal stage.
3. X ray CT device as claimed in claim 1 also comprises:
Functional unit, it changes this regional size that shows on the screen of display unit on the screen of display unit; And
Controller, change operation that it is relevant to this functional unit automatically changes universal stage and the X-ray detector position on the X ray optical axis direction one of at least, makes that zone and the actual CT on screen is imaged as possible area coincidence.
4. X ray CT device as claimed in claim 2 also comprises:
Functional unit, it changes this regional size that shows on the screen of display unit on the screen of display unit; And
Controller, change operation that it is relevant to this functional unit automatically changes universal stage and the X-ray detector position on the X ray optical axis direction one of at least, makes that zone and the actual CT on screen is imaged as possible area coincidence.
5. X ray CT device as claimed in claim 1 also comprises:
Transfer table, it is placed on the universal stage and it goes up mounting object, and it is mobile on X ray optical axis direction and vertical also also vertical with a turning axle direction direction with the X ray optical axis direction,
Wherein by specifying rotation center on the optical imagery of the object that shows on the display unit screen or, make at the rotation center of appointment on the optical imagery or on the turning axle that is centrally located in universal stage in the zone after moving by coming mobile transfer table moving the zone that is presented on the display unit screen on the screen.
6. X ray CT device as claimed in claim 2 also comprises:
Transfer table, it is placed on the universal stage and it goes up mounting object, and it is mobile on X ray optical axis direction and vertical also also vertical with a turning axle direction direction with the X ray optical axis direction,
Wherein by specifying rotation center on the optical imagery of the object that shows on the display unit screen or, make at the rotation center of appointment on the optical imagery or on the turning axle that is centrally located in universal stage in the zone after moving by coming mobile transfer table moving the zone that is presented on the display unit screen on the screen.
7. X ray CT device as claimed in claim 3 also comprises:
Transfer table, it is placed on the universal stage and it goes up mounting object, and it is mobile on X ray optical axis direction and vertical also also vertical with a turning axle direction direction with the X ray optical axis direction,
Wherein by specifying rotation center on the optical imagery of the object that shows on the display unit screen or, make at the rotation center of appointment on the optical imagery or on the turning axle that is centrally located in universal stage in the zone after moving by coming mobile transfer table moving the zone that is presented on the display unit screen on the screen.
8 X ray CT devices as claimed in claim 4 also comprise:
Transfer table, it is placed on the universal stage and it goes up mounting object, and it is mobile on X ray optical axis direction and vertical also also vertical with a turning axle direction direction with the X ray optical axis direction,
Wherein by specifying rotation center on the optical imagery of the object that shows on the display unit screen or, make at the rotation center of appointment on the optical imagery or on the turning axle that is centrally located in universal stage in the zone after moving by coming mobile transfer table moving the zone that is presented on the display unit screen on the screen.
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| JP2004145320 | 2004-05-14 | ||
| JP145320/04 | 2004-05-14 | ||
| JP249821/04 | 2004-08-30 |
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| CN100552441C CN100552441C (en) | 2009-10-21 |
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| CN101023890B (en) * | 2006-01-13 | 2012-03-21 | 西门子公司 | Imaging medical technique device |
| CN101301204B (en) * | 2007-05-11 | 2011-03-09 | Ge医疗***环球技术有限公司 | X-ray image-forming system |
| CN103239253A (en) * | 2012-02-14 | 2013-08-14 | 株式会社东芝 | Medical image diagnostic apparatus |
| CN103239253B (en) * | 2012-02-14 | 2015-07-15 | 株式会社东芝 | Medical image diagnostic apparatus |
| CN105493153A (en) * | 2013-08-23 | 2016-04-13 | 西门子公司 | Method for displaying on a screen an object shown in a 3D data set |
| CN104569003A (en) * | 2014-12-29 | 2015-04-29 | 中核苏阀横店机械有限公司 | Turning device for radiographic testing |
| CN105852908A (en) * | 2016-05-28 | 2016-08-17 | 王培源 | Rotary multi-directional detection imaging device |
| CN111948232A (en) * | 2019-05-15 | 2020-11-17 | 株式会社岛津制作所 | X-ray computed tomography apparatus and X-ray computed tomography method |
| CN111948232B (en) * | 2019-05-15 | 2023-08-25 | 株式会社岛津制作所 | X-ray computed tomography apparatus and X-ray computed tomography imaging method |
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|---|---|
| CN100552441C (en) | 2009-10-21 |
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