CN205301211U - Light path adjusting device of X ray image system - Google Patents
Light path adjusting device of X ray image system Download PDFInfo
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- CN205301211U CN205301211U CN201620018689.5U CN201620018689U CN205301211U CN 205301211 U CN205301211 U CN 205301211U CN 201620018689 U CN201620018689 U CN 201620018689U CN 205301211 U CN205301211 U CN 205301211U
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Abstract
The utility model discloses a light path adjusting device of X ray image system, it includes: rotary platform has and arranges planar base and relative base rotation carousel in, three -dimensional alignment jig is fixed and is had to adjust with the carousel and holds, the crystal mount table has level crossing or crystal with the fixed just dismouting of the regulation end of three -dimensional alignment jig, the laser instrument, its output is towards the crystal mount table. The utility model discloses aim at in, combine the reflection law of crystal bragg diffraction effect and light, realize the main light path adjustment of crystal formation of image in the X ray image device making the precision increase of X ray image device at present through single speculum and laser instrument, reach the imaging of preferred.
Description
Technical field
This utility model relates to the field such as x-ray imaging, bio-imaging, more specifically imaging optical path adjusting apparatus.
Background technology
And global climate day by day exhausted in fossil energy continues under the environmental background warmed, and the exploration of new forms of energy is extremely urgent, and nuclear energy is then the research direction that one of them is important.
At present, nuclear fission technology relative maturity and having come into operation. But, owing to the reserves of uranium are extremely limited, and the raw material of fission reaction and product are all radioactive substances, and our life security is constituted serious threat; So, relatively core fission technology more safely, be suitable to the light nuclear fusion technology drawn materials, be increasingly becoming an important research direction.
In order to realize controllable nuclear fusion, it is necessary to Study of Laser and the physical process of pellet implosion, analyze its physical theory. In order to study implosion physical process, it is necessary to understand the state within implosion radiation high-temperature plasma and interaction process, and some state parameters of ions various in high-temperature plasma and electronics must be measured.
Due to radiation main in implosion process is high-temperature plasma X ray, and containing abundant information in plasma X-ray, such as thermograde, density gradient, ionization distribution etc. significant condition parameter. So, X ray is caught and information reads the key point that will be research controllable nuclear fusion.
Crystallography is a kind of important technology of radiodiagnosis, and it has imaging efficiency height, has the features such as higher power spectrum resolution and spatial resolution, and it can obtain high-temperature plasma X-ray energy spectrum information, diagnoses for laser plasma X-ray power spectrum; X ray two-dimensional space resolution information can also be obtained.
In x-ray imaging device, mainly by the Bragg effect of crystal, make X ray reflection to realize the focal imaging of X ray. Realize imaging device and obtain the good radioscopic image of quality, and obtain higher resolution (time or spatial resolution), it is necessary to imaging device light path is accurately adjusted. The principle of reflection of general light comes labelling light path position by 3 reflecting mirrors and 1 lens traditionally. It practice, crystallography is different from reflecting mirror, crystal have to meet Bragg effect and just be similar to reflecting mirror, and crystal can destroy internal crystal structure in process engineering.
Summary of the invention
The purpose of this utility model is to overcome or slow down the part at least the above shortcoming, hereby provides a kind of x-ray imaging system optical path adjustment device, comprising:
Rotation platform, has the base being placed in plane and respect thereto rotates rotating disk;
Three-dimensional adjustable shelf, fixes with rotating disk and has adjustable side;
Crystal erecting bed, fixes with the adjustable side of described three-dimensional adjustable shelf and has dismounted plane mirror or crystal;
Laser instrument, its outfan is towards described crystal erecting bed.
Preferably, the side of described crystal erecting bed relative laser device is provided with limit tabula rasa, and described limit tabula rasa has limit unthreaded hole.
Further, the adjustable side of described three-dimensional adjustable shelf is fixed with installing frame, and described crystal erecting bed is fastened in installing frame, described limit tabula rasa and installing frame clamping.
It addition, described three-dimensional adjustable shelf includes, along vertical and be fixed on the z-axis telescoping mechanism of rotating disk, being fixed with x-axis telescoping mechanism in described z-axis telescoping mechanism, being fixed with y-axis telescoping mechanism in described x-axis telescoping mechanism, y-axis telescoping mechanism is fixed in described adjustable side.
This utility model is intended to, the reflection law of binding crystal Bragg diffraction effect and light, realize the main light path adjustment of crystallography in x-ray imaging device by single reflecting mirror and laser instrument, make the precision of existing x-ray imaging device increase, reach preferably imaging effect.
Accompanying drawing explanation
Being described more fully these and other aspect of the present utility model now with reference to appended accompanying drawing, it show currently preferred embodiment of the present utility model. Wherein:
Fig. 1 is the structural representation of the present embodiment.
In figure: 11, chassis; 12, rotating disk; 211, z-axis sleeve; 212, z-axis expansion link; 213, z-axis locking nail; 221, x-axis fixed block; 222, x-axis locking nail; 231, y-axis fixed block; 232, y-axis movable block; 233, y-axis locking nail; 3, installing frame; 4, crystal erecting bed; 5, limit tabula rasa; 6, laser instrument.
Detailed description of the invention
Below in conjunction with accompanying drawing and instantiation, it is further elucidated with this utility model, it should be understood that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model, after having read this utility model, the amendment of the various equivalent form of values of the present utility model is all fallen within the application claims limited range by those skilled in the art.
As it is shown in figure 1, present embodiment discloses a kind of x-ray imaging system optical path adjustment device, it mainly includes rotation platform, three-dimensional adjustable shelf, crystal erecting bed 4 and laser instrument 6.
Rotation platform has base and rotating disk 12, and the base ground that is set up in for being consolidated by the present embodiment, rotating disk 12 and chassis 1 relatively rotate.
Three-dimensional adjustable shelf include respectively with x-axis telescoping mechanism, y-axis telescoping mechanism and z-axis telescoping mechanism, z-axis telescoping mechanism includes the z-axis sleeve 211 fixing with rotating disk 12, grafting z-axis expansion link 212 in z-axis sleeve 211, z-axis expansion link 212 can upper and lower displacement in z-axis sleeve 211, be provided with z-axis locking nail 213 in all sides of sleeve; X-axis telescoping mechanism includes x-axis fixed block 221 and x-axis movable block, and x-axis fixed block 221 is fixed with z-axis expansion link 212, and x-axis movable block connects x-axis fixed block 221 by x-axis locking nail 222; Y-axis telescoping mechanism includes y-axis fixed block 231 and y-axis movable block 232, y-axis fixed block 231 and x-axis movable block are fixed, locked by y-axis locking nail 233 between y-axis movable block and y-axis fixed block, y-axis movable block 232 offers perforation, being fixed with installing frame 3 in perforation, there is boss the inner side of installing frame 3. Crystal erecting bed 4 is conflicted on boss, with installing frame 3 clamping while of limit tabula rasa 5. Laser instrument 6, its outfan is towards crystal erecting bed 4.
After known light path adjustment mainly utilizes crystal to meet Bragg condition, X ray is reflected.
Its formula is 2dsin ��=n ��, and in formula, d is interplanar distance; �� is the Bragg angle of X ray; �� is incident X-rays wavelength, and n is the order of reflection. The present embodiment is in order to realize the adjustment to imaging system, it is necessary to adjust the Bragg angle �� of crystal to be measured.
The operation principle of the present embodiment is as follows:
(1) using a plane mirror to replace crystal, be installed on crystal erecting bed 4, then replaced x-ray source by He-Ne laser instrument 6, and the wavelength of He-Ne laser instrument 6 output is 650nm, its beam diameter is about 1mm.
(2) moving three dimension adjusting bracket, makes the minute surface center that plane mirror is positioned at �� axle and plane mirror overlap with �� axle; The another chassis 1 by moving rotary platform, enables the minute surface center of plane mirror to split the collimated beam of He-Ne laser instrument 6 output.
(3) by stirring the rotating disk 12 of turntable, making plane mirror rotate to �� angle is 0 ��, and plane and collimated beam to plane mirror are observed, and makes collimated beam graze to plane mirror.
(4) determining that �� angle is that 0 �� and collimated beam after graze plane mirror, can rotate the rotating disk 12 of turntable, making �� is 180 ��, and determines whether collimated beam meets grazing angle again.
(5) (3), (4) step are repeated, the y direction of fine setting three-dimensional trim holder, until plane mirror is when ��=0 �� and 180 ��, when collimated beam is satisfied by graze condition, it is assured that the minute surface center of plane mirror is exactly the center of imaging system, the final position of tag plane mirror.
(6) take out plane mirror and crystal is installed on crystal erecting bed 4. Adjust the y direction of three-dimensional trim holder, the center of crystal is returned to the final of plane mirror labelling, now the center of the center of crystal i.e. optical system. Fine setting collimated beam �� axle simultaneously so that the central point of crystal overlaps with laser beam axis. Now namely the reflection law adjustment crystal of available light reaches to meet the Bragg angle of experiment.
(7) He-Ne laser instrument 6 is placed on the plasma target position that collimated beam focuses on, and crystal is placed on the position (�� is Bragg angle) of distance target Rsin ��, so can be regarded as a monochromator focused on.
After the light beam of He-Ne laser instrument 6 transmitting is reflected by plane of crystal, reflection light beam shines directly into the center of pick-up probe.
Further, since there is a drift angle between physical surface and internal flaw crystal face after polishing crystal, the optical diffraction of X ray is compared with the reflected light path of laser instrument 6, and the light path of X ray somewhat deviates. If the detection area of detector is big, it is possible to do not deviate by effective search coverage of detector after being effectively ensured X-ray diffraction.
Claims (4)
1. an x-ray imaging system optical path adjustment device, it is characterised in that including:
Rotation platform, has the base being placed in plane and respect thereto rotates rotating disk;
Three-dimensional adjustable shelf, fixes with rotating disk and has adjustable side;
Crystal erecting bed, fixes with the adjustable side of described three-dimensional adjustable shelf and has dismounted plane mirror or crystal;
Laser instrument, its outfan is towards described crystal erecting bed.
2. x-ray imaging system optical path adjustment device according to claim 1, it is characterised in that the side of described crystal erecting bed relative laser device is provided with limit tabula rasa, and described limit tabula rasa has limit unthreaded hole.
3. x-ray imaging system optical path adjustment device according to claim 2, it is characterised in that the adjustable side of described three-dimensional adjustable shelf is fixed with installing frame, and described crystal erecting bed is fastened in installing frame, described limit tabula rasa and installing frame clamping.
4. x-ray imaging system optical path adjustment device according to claim 1, it is characterized in that, described three-dimensional adjustable shelf includes along vertical and be fixed on the z-axis telescoping mechanism of rotating disk, it is fixed with x-axis telescoping mechanism in described z-axis telescoping mechanism, being fixed with y-axis telescoping mechanism in described x-axis telescoping mechanism, y-axis telescoping mechanism is fixed in described adjustable side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620018689.5U CN205301211U (en) | 2016-01-08 | 2016-01-08 | Light path adjusting device of X ray image system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620018689.5U CN205301211U (en) | 2016-01-08 | 2016-01-08 | Light path adjusting device of X ray image system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205301211U true CN205301211U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620018689.5U Expired - Fee Related CN205301211U (en) | 2016-01-08 | 2016-01-08 | Light path adjusting device of X ray image system |
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| Country | Link |
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| CN (1) | CN205301211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613362A (en) * | 2020-06-02 | 2020-09-01 | 中国计量科学研究院 | X-ray light path adjusting system and X-ray light path adjusting device |
| CN113358673A (en) * | 2021-07-19 | 2021-09-07 | 广东工业大学 | X-ray imaging device and method for ICF (intracorporeal fusion protein) implosion target pill implosion process |
-
2016
- 2016-01-08 CN CN201620018689.5U patent/CN205301211U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613362A (en) * | 2020-06-02 | 2020-09-01 | 中国计量科学研究院 | X-ray light path adjusting system and X-ray light path adjusting device |
| CN111613362B (en) * | 2020-06-02 | 2022-04-01 | 中国计量科学研究院 | X-ray light path adjusting system and X-ray light path adjusting device |
| CN113358673A (en) * | 2021-07-19 | 2021-09-07 | 广东工业大学 | X-ray imaging device and method for ICF (intracorporeal fusion protein) implosion target pill implosion process |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20170108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |