CN107315022A - A kind of X-ray collimation location adjusting device and system - Google Patents
A kind of X-ray collimation location adjusting device and system Download PDFInfo
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- CN107315022A CN107315022A CN201710598559.2A CN201710598559A CN107315022A CN 107315022 A CN107315022 A CN 107315022A CN 201710598559 A CN201710598559 A CN 201710598559A CN 107315022 A CN107315022 A CN 107315022A
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- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 70
- 230000033001 locomotion Effects 0.000 claims abstract description 25
- 238000001228 spectrum Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 7
- 230000004907 flux Effects 0.000 abstract description 6
- 238000002441 X-ray diffraction Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/20—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
- G01N23/20008—Constructional details of analysers, e.g. characterised by X-ray source, detector or optical system; Accessories therefor; Preparing specimens therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/05—Investigating materials by wave or particle radiation by diffraction, scatter or reflection
- G01N2223/056—Investigating materials by wave or particle radiation by diffraction, scatter or reflection diffraction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/10—Different kinds of radiation or particles
- G01N2223/101—Different kinds of radiation or particles electromagnetic radiation
- G01N2223/1016—X-ray
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/30—Accessories, mechanical or electrical features
- G01N2223/316—Accessories, mechanical or electrical features collimators
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The present invention provides a kind of X-ray collimation location adjusting device and system, including seal cavity, beam path alignment governor motion, horizontal drive structure and vertical driving structure;Beam path alignment governor motion includes upper lead flake and lower lead flake, also include can under the driving of horizontal drive structure the upper XY mobile stations of relative motion and lower XY mobile stations, upper XY mobile stations and lower XY mobile stations are respectively equipped with through hole and lower through-hole, upper lead flake is installed on the upper open end of through hole, lower lead flake is installed on the lower open end of lower through-hole, the light hole passed through for X-ray is offered at the geometric center of upper lead flake and lower lead flake, the aperture of the light hole of lower lead flake is less than the aperture of the light hole of upper lead flake, vertical driving structure is acted and X-ray collimation location adjusting device moves up and down.By the relative motion of upper XY mobile stations and lower XY mobile stations, to change the aligned relationship between upper through hole and lower through-hole, and then the luminous flux of regulation X-ray is realized, to improve resolution ratio.
Description
Technical field
Field of locating technology is collimated the present invention relates to X-ray, more particularly to a kind of X-ray collimates location adjusting device and is
System.
Background technology
The X-ray that sends from X-ray tube is general to be projected with larger angle in coniform, be irradiated to analyzed object it
Before, generally require to adjust light shape, and here it is the effect of x-ray collimator.In Medical Devices, such as CT machines, in order to contract
Small irradiated area, reduces possible radiation damage, it is necessary to X-ray collimation adjustment.In Chinese patent CN201310715096,
By forming through hole on the first plate and the second plate, coniform X-ray is become into parallel wire harness.Sometimes collimater
Effect be only limitted to adjust light path size, such as Chinese patent CN200510086456, by above and below setting, left and right four direction adjust
The position of whole plate, changes the shape of X-ray light path, but the direction of illumination of X-ray is not influenceed.Notice Chinese patent
CN201410113078 proposes one kind and designed by block shape, the method for improving through hole alignment accuracy.At present about X-ray
The design of collimater mainly considers the change to beam shape, the need for meeting medicine equipment.
XRD (X-Ray Diffraction, X-ray diffraction) is a kind of diffraction phenomena analysis material composition of utilization X-ray
The instrument of structure.When beam of x-rays is radiated on powder sample, imaging plate is placed in the reflection of light or transmitted light path,
Diffraction pattern can be observed on imaging plate.The imaging law of diffraction pattern is relevant with the crystal structure of tested powder sample.Therefore
The structure of matter information of testing sample is obtained with by analyzing the characteristic information of diffraction pattern.XRD is widely used in material, smelting
The fields such as gold, cement, mineral products.
At present, XRD analysis instrument is operated mainly under indoor environment, and its basic structure includes x-ray source, optical filter, load
Thing platform, detector and angular instrument.Generally, detector uses highly sensitive semiconductor detector, such as lithium drift silicon
Or lithium drift germanium etc..These detectors belong to one-dimensional detectors, can only a fixed angle reflected light path or transmitted light path
Upper detection diffraction photon.XRD analysis need to obtain in different angles of reflection or the diffraction information of angle of transmission, and this is accomplished by angular instrument
Coordinate.When XRD analysis instrument works, detector rotates under the control of angular instrument according to certain step angle, so as to
To obtain the complete spectrum information needed for XRD analysis.Angular instrument belongs to accurate mechanical device, and the angle of rotation stepping can be set
That puts is very small, and the profile information amount of acquisition is big, the high resolution of instrument.But indoor XRD analysis equipment instrument is greatly, again
Amount is heavier, is not suitable for field application.
The content of the invention
In view of this, The embodiment provides a kind of X that can be adjusted X-ray luminous flux and be adapted to field application
Ray collimates location adjusting device and system.
Embodiments of the invention provide a kind of X-ray collimation location adjusting device, including seal cavity, be installed on it is described close
Seal the beam path alignment governor motion of cavity, connect the seal cavity and the horizontal drive structure of the beam path alignment governor motion
And vertical driving structure;The roof of the seal cavity is fixed plate, and the beam path alignment governor motion is included in vertical side
The upper lead flake and lower lead flake being provided separately upwards, in addition to it is setting up and down and can under the driving of the horizontal drive structure and
The upper XY mobile stations and lower XY mobile stations of relative motion, the upper XY mobile stations and the lower XY mobile stations are respectively equipped with passes through up and down
Logical upper through hole and lower through-hole, the upper lead flake be installed on the upper open end of the upper through hole and in the upper XY mobile stations and
Between the fixed plate, the lower lead flake is installed on the lower open end of the lower through-hole and is in the lower XY mobile stations and described
Between the bottom plate of seal cavity, offered at the geometric center of the upper lead flake and the lower lead flake for leading to that X-ray passes through
Unthreaded hole, the aperture of the light hole of the lower lead flake is less than the aperture of the light hole of the upper lead flake, and the vertical driving structure is moved
Make and X-ray collimation location adjusting device up and down motion.
Further, the beam path alignment governor motion also include be installed on the fixed plate upper plane be used for control
The shutter being turned on or off of X-ray light path, the shutter is located at the top of the upper through hole.
Further, the shutter include be installed on the support of the fixed plate, the gate on the support and with
The driver to drive the gate opening or closing of the gate connection, the gate is by that can prevent X-ray from penetrating
Stainless steel material be made, including some blades.
Further, the seal cavity includes connecting the fixed plate and the tubular or frame-shaped shell body of the bottom plate, institute
Stating horizontal drive structure includes the X being arranged in a mutually vertical manner to adjusting rod and Y-direction adjusting rod, and the X is adjusted to adjusting rod and the Y-direction
One end of pole is connected with the lower XY mobile stations, and the other end then stretches out and passes the housing respectively with X to tune
Save handle and the connection of Y-direction regulation handle.
Further, the X is equipped with scale on adjusting rod and the Y-direction adjusting rod.
Further, the housing is provided with the handle for allowing the X to be passed through to adjusting rod and the Y-direction adjusting rod respectively and adjusted
Knothole, the X between adjusting rod and the Y-direction adjusting rod and the corresponding handle adjustment hole provided with preventing X-ray from projecting
Closure.
Further, the vertical driving structure is symmetrically arranged four screw mandrel, and one end of each screw mandrel is located at institute
State in seal cavity, the other end then upwardly extends and passes the fixed plate and fixed by a fastener.
Further, the edge of the upper lead flake is provided with sealing ring, and the fixed plate and the upper XY mobile stations pass through
Upper to fasten screw connection and clamp the upper lead flake, the lower lead flake is fixed on the lower XY movements by lower fastening screw
Platform.
Embodiments of the invention provide a kind of X-ray collimation positioning regulating system, including x-ray source, for adjusting by institute
State the dispersion angle for the ray that x-ray source is sent and the primary filter plate of photon energy, after the primary filter plate
Above-mentioned X-ray collimates location adjusting device, being used for after X-ray collimation location adjusting device and detects X-ray
CCD sensor devices and the spectra collection processing unit that is connected with the CCD sensor devices, the spectra collection processing unit
It is connected to control being turned on or off and then controlling the time for exposure for the shutter with the shutter.
The beneficial effect brought of technical scheme that embodiments of the invention are provided is:In order to obtain clearly diffracting spectrum,
The photon numbers captured in the strict control unit interval by the CCD sensor devices are needed, X-ray collimation positioning of the invention is adjusted
Regulating device and system, make the upper XY mobile stations and the lower XY mobile stations relative motion by the horizontal drive structure, with
Changing the relative position of the upper through hole and the lower through-hole, and then change the upper lead flake and the lower lead flake allows X-ray
The effective aperture passed through, realizes the regulation to X-ray luminous flux, that is, realizes photosensitive by the CCD in the strict control unit interval
The photon numbers of device capture.The CCD sensor devices are two-dimensional detector, using need not then make after the CCD sensor devices
With the angular instrument that volume is big, weight is big, it is easy to onsite application.
Brief description of the drawings
Fig. 1 is the front view that X-ray of the present invention collimates location adjusting device;
Fig. 2 is Fig. 1 cut-away views;
Fig. 3 is the schematic diagram of X-ray collimation positioning regulating system of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is further described.
Fig. 1, Fig. 2 and Fig. 3 are refer to, location adjusting device 16 is collimated The embodiment provides a kind of X-ray, is fitted
For Portable X RD analytical instrument, including seal cavity 20, be installed on the seal cavity 20 beam path alignment governor motion,
Connect the seal cavity 20 and the horizontal drive structure and vertical driving structure of the beam path alignment governor motion.
Fig. 2 is refer to, the beam path alignment governor motion includes the upper lead flake 9 and lower lead that in the vertical direction is provided separately
Piece 13, in addition to it is setting up and down and can under the driving of the horizontal drive structure the upper He of XY mobile stations 11 of relative motion
Lower XY mobile stations 12.The upper XY mobile stations 11 are fixed station, and its central area offers one through the upper XY mobile stations
The upper through hole of upper and lower surface, the upper lead flake 9 is located at the upper surface of the upper XY mobile stations 11 and is covered in the upper through hole
At upper open end, a light hole is offered at the geometric center of the upper lead flake 9, the light hole is that aperture is about 400 micro-
The circular hole of rice.The lower XY mobile stations 12 are translational table, and its central area offers one through the lower XY mobile stations 12
The lower through-hole of upper and lower surface, the lower lead flake 13 is located at the lower surface of the lower XY mobile stations 12 and is covered in the lower through-hole
At lower open end, a light hole, the aperture of the light hole of the lower lead flake are also offered at the geometric center of the lower lead flake 13
Less than the aperture of the light hole of the upper lead flake 9, it is therefore an objective to stop non-parallel to X-ray light path X-ray reflected light and dissipate
Penetrate light to pass through, play the interference effect for reducing the reflected light and scattered light of X-ray to the incident light of X-ray.
Refer to Fig. 1 and Fig. 2, the beam path alignment governor motion also include being used for the unlatching for controlling X-ray light path or
Close to control the shutter 8 of X-ray exposure time.The shutter 8 be located at the upper through hole top, including support, located at institute
The driver to drive the gate opening or closing stated the gate on support and be connected with the gate, the gate
It is made up of the stainless steel material that can prevent X-ray from penetrating, including some blades, it is real by changing the position of some blades
The existing gate opens or closed, so realize allow X-ray by or stop that X-ray passes through.
The seal cavity 20 includes the roof 6 positioned at upper end, the bottom plate 7 positioned at lower end and connects the roof 6 and institute
The housing 2 of bottom plate 7 is stated, the housing 2 is cylindrical shape or frame, and the roof of the seal cavity 20 is fixed plate 6, described
The support of shutter 8 is installed on the upper plane of the fixed plate 6, and the thinner thickness of the upper lead flake 9 cuts into thin lead flake described
During upper lead flake 9, the edge of the upper lead flake 9 is easily deformed, got through on described at the geometric center of lead flake 9 unthreaded hole when
Wait, also easily cause the edge deformation of the light hole, these deformations all can cause larger shadow to the collimation of X-ray light path
Ring.Therefore installing, the upper lead flake 9 is located between the fixed plate 6 and the upper XY mobile stations 11, the fixed plate 6
Connected and clamped by upper fastening screw 10 with the upper XY mobile stations 11, pressed from both sides and put down the upper lead flake 9, and the upper lead flake 9
Edge is provided with sealing ring, by screwing the upper fastening screw 10, and the reflected light and scattered light of X-ray can be prevented from top
Project the upper XY mobile stations 11.The lower lead flake 13 is installed on the lower open end of the lower through-hole and in the lower XY movements
Between platform 12 and the bottom plate of the seal cavity 20 7, and the lower lead flake 13 be fixed on by lower fastening screw 14 it is described under
XY mobile stations 12.
It refer to Fig. 1 and Fig. 2, the horizontal drive structure includes the X that is arranged in a mutually vertical manner to adjusting rod (not shown) and Y
To adjusting rod 22, the X is connected to one end of adjusting rod and the Y-direction adjusting rod 22 with the lower XY mobile stations 12, another
End then stretches out and passes the housing 2 to be connected with X to regulation handle 4 and Y-direction regulation handle 5 respectively.On the housing 2
Provided with the handle adjustment hole for allowing the X to be passed through to adjusting rod and the Y-direction adjusting rod 22 respectively, the X is to adjusting rod and the Y
The closure 21 for preventing that X-ray from projecting to being provided between adjusting rod 22 and the corresponding handle adjustment hole, uses institute of the present invention
During the X-ray collimation location adjusting device 16 stated, the closure 21 is removed, exposes the X to regulation handle 4 and described
Y-direction regulation handle 5, the X is easy to quantitatively regulating and controlling, used to scale is equipped with regulation handle 4 and the Y-direction regulation handle 5
Finish after X-ray collimation location adjusting device 16 of the present invention, put the closure 21, the closure 21 can be prevented
The X-ray only remained is penetrated to be projected from the seal cavity 20.The X is manually operated to adjust to regulation handle 4 and the Y-direction
Section handle 5 adjusts the X to adjusting rod and the Y-direction adjusting rod 22, it is possible to drive the lower XY mobile stations 12 X to
And/or make the position between the lower XY mobile stations 12 and the upper XY mobile stations 11 to motion in vertical Y-direction with the X
Relation changes, it is possible to changes the position relationship between the light hole of the upper lead flake 9 and the lower lead flake 13, makes the upper lead
The center line of the light hole of piece 9 and the lower lead flake 13 is overlapped or staggered, and then changes effective light hole warp of X-ray, real
Now to the regulation of luminous flux, simplified structure reduces the requirement to each component processing technology, overcome because of lead flake thinner thickness
And influence of the thang-kng bore deformation caused to light path, while using manual adjustment mode, rather than electric model, it is to avoid because adopting
The cost brought with high-precision driving structure substantially increases problem, reduces the requirement to installing space, meets portable set
Requirement.
The vertical driving structure is symmetrically arranged four screw mandrel 1, and one end of each screw mandrel 1 is located at the annular seal space
In body 20, the other end then upwardly extends and passes the fixed plate 6 and fixed by a fastener 3.The vertical driving structure action
And the X-ray collimation location adjusting device 16 moves up and down.The direction of the up and down motion be Z-direction, the Z-direction, the X to
The Y-direction is vertical two-by-two, optical path direction of the Z-direction parallel to X-ray.The vertical driving structure is adjusted, it is of the present invention
X-ray collimation location adjusting device 16 overall moved in the Z-direction.
When incident X-ray passes through the light hole of the shutter 8, the light hole of the upper lead flake 9 and the lower lead flake 13
Afterwards, the direction of the X-ray of output and luminous flux by the upper lead flake 9 and the light hole of the lower lead flake 13 size and relative position
Decision is put, collimation requirements of the Portable X RD analytical instrument to light path are met.The upper lead flake 9 and the lower lead flake 13 are distinguished
Installed in the upper XY mobile stations 11 and the lower XY mobile stations 12, the requirement to each component processing technology is reduced, is overcome
Because of lead flake thinner thickness and caused by influence of the thang-kng bore deformation to light path.
Fig. 3 is refer to, embodiments of the invention provide a kind of X-ray collimation positioning regulating system, to take Formula X RD analyzers
Device, includes the primary filtering of x-ray source, the dispersion angle for adjusting the ray sent by the x-ray source and photon energy
Piece 15, the above-mentioned X-ray after the primary filter plate 15 collimate location adjusting device 16, positioned at X-ray standard
Being used for after straight location adjusting device 16 detects the CCD sensor devices 17 of X-ray and is connected with the CCD sensor devices 17
Spectra collection processing unit 23, the spectra collection processing unit 23 is connected to control the shutter 8 with the shutter 8
It is turned on or off and then controls the time for exposure.
Incident X-ray from x-ray source injection there occurs 2 points of changes in the presence of the primary optical filter 15:
One is the smaller of the dispersion angle change of incident X-ray;Two be that the energy of incident x-ray photons is limited in a smaller model
In enclosing.X-ray is after X-ray of the present invention collimation location adjusting device 16, in the vacuum of the CCD sensor devices 17
In chamber, photon energy is converted into electric charge by the CCD sensor devices 17, and the energy of photon is stronger or quantity of photon is more, turns
The amount of charge produced after change is more.Spectral collector 18 in the spectra collection processing unit 23 is by controlling the shutter
8 opening and closing, adjust the time for exposure.In a collection period, the spectral collector 18 is by the CCD sensor devices
The electric charge of each pixel in 17 is read, and in the spectrum processor 19 being transferred in the spectra collection processing unit 23.Institute
State spectrum processor 19 and the most diameter of light spot and center are calculated according to the spectrum picture received:(1) when most light spot is not deposited
When, referred to as without speck pattern, represent the geometric center between the light hole and the light hole of lower lead flake 13 of the upper lead flake 9
Line and the X-ray central campus deviation of incidence are larger, and such case directly changes the lower lead flake 13, makes the lower lead flake after replacing
Light hole aperture be more than the lower lead flake 13 before changing light hole aperture, until that can observe that obvious hot spot is
Only;(2) when the most diameter of light spot is less than the aperture of the light hole of the lower lead flake 13, abbreviation coarse mode is calculated in hot spot
The heart and the offset of preferable hot spot reference point, then rotate the X to adjusting rod and the Y-direction adjusting rod 22, realize that position is mended
Repay;Above step is repeated, until the spot diameter of acquisition is more than or equal to the aperture of the light hole of the lower lead flake 13;(3) most
When the diameter of light spot is more than or equal to the aperture of the light hole of the lower lead flake 13, abbreviation fine mode, light under this pattern
Spot center is already close to preferable hot spot reference point, and the manual regulation of the upper XY mobile stations 11 and the lower XY mobile stations 12
Precision is generally 10 microns.After double regulation, when offset does not obtain improving, stop operation, can now recognize
Completed for beam path alignment regulation.
The beneficial effect brought of technical scheme that embodiments of the invention are provided is:In order to obtain clearly diffracting spectrum,
The photon numbers captured in the strict control unit interval by the CCD sensor devices are needed, X-ray collimation positioning of the invention is adjusted
Regulating device 16 and system, make the upper XY mobile stations 11 and the relative fortune of the lower XY mobile stations 12 by the horizontal drive structure
Dynamic, to change the relative position of the upper through hole and the lower through-hole, and then the change upper lead flake 9 and the lower lead flake 13 are permitted
Perhaps the effective aperture that X-ray passes through, realizes the regulation to X-ray luminous flux, that is, realizes described in the strict control unit interval
The photon numbers that CCD sensor devices 17 are captured.The CCD sensor devices 17 are two-dimensional detector, use the CCD sensor devices
The angular instrument that volume is big, weight is big is then required for afterwards, is easy to onsite application.
Herein, the involved noun of locality such as forward and backward, upper and lower is to be located at parts in accompanying drawing in figure and zero
The position of part each other is intended merely to the clear of expression technology scheme and conveniently come what is defined.It should be appreciated that the noun of locality
Use should not limit the claimed scope of the application.
In the case where not conflicting, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (9)
1. a kind of X-ray collimates location adjusting device, it is characterised in that:Including seal cavity, it is installed on the seal cavity
Beam path alignment governor motion, the horizontal drive structure for connecting the seal cavity and the beam path alignment governor motion and vertical
Driving structure;The roof of the seal cavity is fixed plate, and the beam path alignment governor motion is separated including in the vertical direction
The upper lead flake and lower lead flake set, in addition to it is setting up and down and can the relative motion under the driving of the horizontal drive structure
Upper XY mobile stations and lower XY mobile stations, the upper XY mobile stations and the lower XY mobile stations are respectively equipped with the upper logical of up/down perforation
Hole and lower through-hole, the upper lead flake are installed on the upper open end of the upper through hole and in the upper XY mobile stations and the fixation
Between plate, the lower lead flake is installed on the lower open end of the lower through-hole and in lower the XY mobile stations and the seal cavity
Bottom plate between, the light hole passed through for X-ray is offered at the geometric center of the upper lead flake and the lower lead flake, it is described
The aperture of the light hole of lower lead flake is less than the aperture of the light hole of the upper lead flake, and the vertical driving structure is acted and the X
Ray collimation location adjusting device moves up and down.
2. X-ray as claimed in claim 1 collimates location adjusting device, it is characterised in that:The beam path alignment governor motion
Also include the shutter being turned on or off for being used to control X-ray light path of upper plane for being installed on the fixed plate, it is described fast
Door is located at the top of the upper through hole.
3. X-ray as claimed in claim 2 collimates location adjusting device, it is characterised in that:The shutter includes being installed on institute
State the support of fixed plate, the gate on the support and be connected with the gate to drive the gate opening or
The driver of closing, the gate is made up of the stainless steel material that can prevent X-ray from penetrating, including some blades.
4. X-ray as claimed in claim 1 collimates location adjusting device, it is characterised in that:The seal cavity includes connection
The tubular or frame-shaped shell body of the fixed plate and the bottom plate, the horizontal drive structure include the X that is arranged in a mutually vertical manner to tune
Pole and Y-direction adjusting rod, the X are connected to one end of adjusting rod and the Y-direction adjusting rod with the lower XY mobile stations, another
End then stretches out and passes the housing to be connected with X to regulation handle and Y-direction regulation handle respectively.
5. X-ray as claimed in claim 4 collimates location adjusting device, it is characterised in that:The X is to adjusting rod and the Y
Scale is equipped with to adjusting rod.
6. X-ray as claimed in claim 4 collimates location adjusting device, it is characterised in that:The housing is provided with and allowed respectively
The handle adjustment hole that the X is passed through to adjusting rod and the Y-direction adjusting rod, the X is to adjusting rod and the Y-direction adjusting rod and right
Provided with the closure for preventing that X-ray from projecting between the handle adjustment hole answered.
7. X-ray as claimed in claim 1 collimates location adjusting device, it is characterised in that:The vertical driving structure for pair
Claim four screw mandrels set, one end of each screw mandrel is located in the seal cavity, and the other end then upwardly extends and passes institute
Fixed plate is stated to be fixed by a fastener.
8. X-ray as claimed in claim 1 collimates location adjusting device, it is characterised in that:The edge of the upper lead flake is set
Have a sealing ring, the fixed plate and the upper XY mobile stations clamp the upper lead flake by upper fastening screw connection, it is described under
Lead flake is fixed on the lower XY mobile stations by lower fastening screw.
9. a kind of X-ray collimation positioning regulating system, it is characterised in that:Including x-ray source, for adjusting by the x-ray source
The dispersion angle of the ray sent and the primary filter plate of photon energy, after the primary filter plate such as claim
Described in 1 to any one of claim 8 X-ray collimation location adjusting device, positioned at the X-ray collimation location adjusting device it
Afterwards for the spectra collection processing unit that detects the CCD sensor devices of X-ray and be connected with the CCD sensor devices, institute
Spectra collection processing unit is stated to be connected to control when being turned on or off and then controlling exposure of the shutter with the shutter
Between.
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CN109991257A (en) * | 2019-04-15 | 2019-07-09 | 南京航空航天大学 | Combination for CCD camera in the imaging of whole audience x-ray fluorescence collimates camera lens |
CN111345807A (en) * | 2018-12-21 | 2020-06-30 | 四川锦江电子科技有限公司 | Electrocardiographic waveform drawing method, module and device |
CN115327604A (en) * | 2022-08-26 | 2022-11-11 | 郑州康佰甲科技有限公司 | X ray source testing arrangement |
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