CN204989494U - Radiant flux detection equipment is distinguishd in space - Google Patents
Radiant flux detection equipment is distinguishd in space Download PDFInfo
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- CN204989494U CN204989494U CN201520699115.4U CN201520699115U CN204989494U CN 204989494 U CN204989494 U CN 204989494U CN 201520699115 U CN201520699115 U CN 201520699115U CN 204989494 U CN204989494 U CN 204989494U
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Abstract
The utility model provides a radiant flux detection equipment is distinguishd in space, detection equipment include that pinhole lens subassembly, camera, limit hole formation of image board, limit orifice plate peacefully respond X X -ray detector F -XRD, black chamber filling opening sends the visible light, lens form images to it on the limit hole formation of image board, the visible light of confirming this limit hole and filling opening like position relation after, the X ray that black chamber filling opening sent passes the pinhole, only there be the limit hole of partial X ray through limit hole formation of image board and limit orifice plate, the sensitive face that reachs flat response X X -ray detector F -XRD arouses the response, the radiant flux of this part X ray energy current subregion in corresponding to the filling opening, with time limit hole formation of image board record filling opening pass through the X -ray that the pinhole becomes like and limit the position relation between the hole, the implementation space is distinguishd the radiant flux and is surveyed. The utility model discloses can realize having simultaneously the time and space and differentiate ground X -radiation stream ration detection, it influences not receive laser to beat the extra X ray that produces at black chamber filling opening border, has wide application prospect.
Description
Technical field
The utility model belongs to X-ray detection field, is specifically related to a kind of spatial discrimination radiant flux detecting devices.
Background technology
Laser energy can be converted to nearly Planck grenz ray by the black chamber of Laser Driven, and often uses indirect driving in inertial confinement fusion ICF.This X ray measured can be used for derivation radiation temperature, and radiation temperature is one of most important parameter in Hohlraum radiation source, is also the basis exploring laser and black chamber interaction physics process.But the spatial-resolved detection of inner specific region (non-hot spot, hot spot or pellet) the X-radiation stream in black chamber not yet solves and very important problem during indirect drive IC F tests.
And existing diagnostic device also exists following deficiency: 1, because general black chamber inlet internal diameter is little, about 800um, the effective test surface diameter of existing diagnostic device is millimeter magnitude, the X ray that facular area, non-spot area and pellet region send all simultaneously detect by these diagnostic tools.Laser is beaten and is still mingled in a large number in the field of view of receiver of above-mentioned detector at the X ray of inlet edge generation on the other hand.Although 2 X ray framing cameras, streak camera can to X ray time, empty evolution diagnose, they are all difficult to measure X-radiation stream quantitatively.And soft X-ray multi-channel energy spectrometer (Dante) although, cvd diamond detector and flat response X-ray detector F-XRD can both record the absolute magnitude of radiant flux, these diagnostic tools do not have spatial discrimination again.
Summary of the invention
Can not carry out the deficiency of time-space resolution radiant flux quantitative detection to overcome diagnostic device in prior art, the utility model provides a kind of spatial discrimination radiant flux detecting devices simultaneously.
Spatial discrimination radiant flux detecting devices of the present utility model, is characterized in, described equipment comprise camera and be arranged in order in light path apeture lens assembly, limit borescopic imaging plate, limit orifice plate, flat response X-ray detector F-XRD.Described apeture lens assembly comprises pinhole plate and lens ring, and described pinhole plate is nested in the middle part of lens ring.Described limit borescopic imaging plate is pasted onto on limit orifice plate.The Xian Kong center of the pin hole center on described pinhole plate, limit borescopic imaging Ban Xiankong center, limit orifice plate and the sensitive face center of flat response X-ray detector F-XRD are on same light path straight line.Black chamber is placed in the front of apeture lens assembly.Be provided with an angle between camera sight line and light path straight line, camera on real time monitoring limit borescopic imaging plate by lens ring to position relationship between visible ray picture and limit hole formed by the inlet of black chamber.
Black chamber inlet sends visible ray, and in apeture lens assembly, lens ring is imaged onto on limit borescopic imaging plate, determines the position relationship of the visible ray picture limitting borescopic imaging plate limit hole and black chamber.The X ray that black chamber inlet sends is through after pin hole in apeture lens assembly, the limit hole of X ray through limit borescopic imaging plate and the limit hole of limit orifice plate, arrive the sensitive face of flat response X-ray detector F-XRD, flat response X-ray detector F-XRD is caused to respond, X ray can flow the radiant flux being corresponded to territory, inlet internal zone dividing, black chamber by limit hole, with time limit borescopic imaging plate record black chamber inlet by actinogram that pin hole becomes in apeture lens assembly, the radiant flux that such implementation space is differentiated is measured.
Described lens ring primary optical axis is perpendicular to described pinhole plate.
Angular range between described camera sight line and light path straight line is 20 ° ~ 40 °.
Pin hole center on described pinhole plate and lens ring primary optical axis distance are hundred micron dimensions and following.
The pinhole diameter of described pinhole plate is less than or equal to hundred micron dimensions.
Described pinhole plate is the tantalum piece of thickness between 20um ~ 100um.
Object distance, the image distance of the object distance of described lens ring imaging, image distance and pinhole plate pin-hole imaging are identical respectively.
The limit hole of described limit borescopic imaging plate is identical with the limit hole size of described limit orifice plate.
Limit hole and the limit bore dia of limit orifice plate of described limit borescopic imaging plate are greater than the product through the device space resolution of theory calculate and the pin-hole imaging enlargement factor of apeture lens assembly, and be less than the product of the pin-hole imaging enlargement factor of described black chamber inlet size and apeture lens assembly, be less than the sensitive face size of flat response X-ray detector F-XRD simultaneously.
Described limit orifice plate thickness is the tantalum piece of 20um ~ 100um magnitude.
Described flat response X-ray detector F-XRD adopted based on the time, through absolute calibration, at photon energy range 0.1 ~ 4KeV flat response X-ray detector.
Described black chamber is the conventional black chamber indirectly driven in inertial confinement fusion.
Described ring-lens material adopts K9 glass.
The utility model beneficial effect is:
1. the utility model can realize having the time and space and differentiate ground X-radiation stream quantitative detection.
2. spatial discrimination of the present utility model reaches 100um magnitude and following.
3. the utility model on the detection of X ray not Stimulated Light play the extra X ray impact produced at inlet edge, there is broad prospect of application.
Accompanying drawing explanation
Fig. 1 is spatial discrimination radiant flux detecting devices light channel structure schematic diagram of the present utility model;
Fig. 2 is the apeture lens modular construction schematic diagram in spatial discrimination radiant flux detecting devices of the present utility model;
Fig. 3 is the visible images of camera collection in spatial discrimination radiant flux detecting devices aiming process of the present utility model;
Fig. 4 is the x-ray image that borescopic imaging plate record limit by spatial discrimination radiant flux detecting devices of the present utility model in Targeting process;
In figure, 1. black chamber 2. adjustable diaphragm 3 apeture lens assembly 4. camera 5. limits borescopic imaging plate 6. to limit orifice plate 7. flat response X-ray detector F-XRD8. oscillograph 9. computer 10. lens ring 11. pinhole plate.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment 1
Fig. 1 is spatial discrimination radiant flux detecting devices light channel structure schematic diagram of the present utility model, Fig. 2 is the apeture lens modular construction schematic diagram in spatial discrimination radiant flux detecting devices of the present utility model, in Fig. 1, Fig. 2, spatial discrimination radiant flux detecting devices of the present utility model, comprise camera 4, the apeture lens assembly 3 that light path is arranged in order, limit borescopic imaging plate 5, limit orifice plate 6, flat response X-ray detector F-XRD7.Described apeture lens assembly 3 comprises pinhole plate 11 and lens ring 10, and described pinhole plate 11 is nested in the middle part of lens ring 10.Described limit borescopic imaging plate 5 is pasted onto on limit orifice plate 6.The Xian Kong center of the pin hole center on described pinhole plate 11, the Xian Kong center limitting borescopic imaging plate 5, limit orifice plate 6 and the sensitive face center of flat response X-ray detector F-XRD7 are on same light path straight line.Black chamber 1 is placed in the front of apeture lens assembly 3.Have an angle between camera 4 sight line and light path straight line, camera 4 on real time monitoring limit borescopic imaging plate 5 by lens ring to position relationship between visible ray picture and limit hole formed by the inlet of black chamber 1.
Black chamber 1 inlet sends visible ray, and in apeture lens assembly 3, lens ring is imaged onto on limit borescopic imaging plate 5, determines to limit borescopic imaging plate 5 to limit the position relationship of the visible ray picture in hole and black chamber 1.The X ray that black chamber 1 inlet sends is through after pin hole in apeture lens assembly 3, the limit hole of X ray through limit borescopic imaging plate 5 and the limit hole of limit orifice plate 6, arrive the sensitive face of flat response X-ray detector F-XRD7, flat response X-ray detector F-XRD is caused to respond, X ray can flow the radiant flux being corresponded to territory, inlet internal zone dividing, black chamber 1 by limit hole, record black chamber 1 inlet by actinogram that pin hole becomes in apeture lens assembly 3 with time limit borescopic imaging plate 5, the radiant flux that such implementation space is differentiated is measured.
Described lens ring primary optical axis is perpendicular to described pinhole plate 11.
Angle between described camera 4 sight line and light path straight line is 20 °.
Pin hole center on described pinhole plate 11 and lens ring 10 primary optical axis distance are in hundred micron dimensions and following.
The pinhole diameter of described pinhole plate 11 is 100um.
Described pinhole plate 11 for thickness be the tantalum piece of 100um.
Object distance, the image distance of the object distance of described lens ring 10 imaging, image distance and pinhole plate 11 pin-hole imaging are identical respectively.
The limit hole of described limit borescopic imaging plate 5 is identical with the limit hole size of described limit orifice plate 6.
The limit hole of described limit borescopic imaging plate 5 is 2mm with the limit bore dia of limit orifice plate 6.
Described limit orifice plate 6 for thickness be the tantalum piece of 100um.
Described flat response X-ray detector F-XRD7 adopted based on the time, through absolute calibration, at photon energy range 0.1 ~ 4KeV flat response X-ray detector.
Described black chamber 1 is the conventional black chamber indirectly driven in inertial confinement fusion.
Described ring-lens material adopts K9 glass.
During spatial discrimination radiant flux detecting devices work of the present utility model, flat response X-ray detector F-XRD7 is connected with oscillograph 8, and oscillograph 8 is connected with computer 9.
Adjustable diaphragm 2 in the utility model, the pin hole center of apeture lens assembly 3, the Xian Kong center of limit borescopic imaging plate 5, the Xian Kong center of limit orifice plate 6 and the sensitive face center of flat response X-ray detector F-XRD7 are point-blank.Pinhole diameter in apeture lens assembly 3 is 100um.Be used for carrying out X-ray imaging to black chamber 1 inlet, this actinogram carries by having the limit orifice plate 6 of diameter D for 2mm limit hole and provides the condition of two-dimensional observation black chamber 1 inlet picture.Limit orifice plate 6, also as imaging surface, is the tantalum piece that one piece of 100um is thick.The limit borescopic imaging plate 5 also with diameter 2mm size limit hole is close on limit orifice plate 6, and it can record the actinogram of black chamber 1 inlet formed by pin hole and the position relationship in this actinogram and limit hole.Flat response X-ray detector F-XRD7 be one based on the time, through absolute calibration, at photon energy range 0.1 ~ 4KeV flat response X-ray detector, it limit orifice plate 6 after.Therefore, only have the X ray of specific part black chamber 1 inlet ejection through pin hole, limit borescopic imaging plate 5 and limit orifice plate 6, collide with flat response X-ray detector F-XRD7 sensitive face.With the response of flat response X-ray detector F-XRD7 to collision, the voltage signal recorded by oscillograph 8 is output in computer 9.The X ray part that these are detected is only corresponding with the X ray that specific diameter d in black chamber 1 sends for 0.2mm region.Like this spatial discrimination radiant flux detecting devices is aimed at the region preset in a black chamber 1, the detection of spatial discrimination radiant flux just can realize.
Apeture lens assembly 3 is core components of spatial discrimination radiant flux detecting devices, and diameter=100um pin hole is that as shown in Figure 2, this pinhole plate is nested in the middle part of lens ring on the thick tantalum piece pinhole plate 11 of 100um.The enlargement factor of lens ring 10 imaging and object distance are identical with the difference of pin-hole imaging.This just makes lens ring 10 become visible ray picture and pin hole to black chamber 1 actinogram that inlet becomes to black chamber 1 inlet, and position is identical with size.Therefore, when being illuminated by black chamber 1 inlet with visible ray, utilize the position relationship between camera 4 real time monitoring limit hole and lens ring 10 imaging, lens ring 10 just can realize auxiliary in real time aiming.Before apeture lens assembly 3, be provided with an adjustable diaphragm 2, for the protection of lens, prevent X ray from passing lens and cause signal disturbing.As a result, as having been carried out 10 times of amplifications, the spatial resolution of the pin-hole imaging determined by pinhole diameter and enlargement factor is 0.11mm as calculated.Therefore utilize spatial discrimination radiant flux detecting devices to go the feasibility detected from the X-radiation stream of 0.2mm diameter region to be also proved.
Assuming that
the X-radiation stream from 0.2mm diameter region specific in black chamber that spatial discrimination radiant flux detecting devices detects.Through the pin hole of pinhole plate 11, met by the X-ray energy that equipment detects:
,
the solid angle of the pin hole of pinhole plate 11,
the pinhole diameter of pinhole plate 11,
be black chamber and pinhole plate 11 pin hole between distance, get 205mm here.Assuming that the voltage signal recorded by oscillograph 8 is
, Wo Menyou
,
signal attenuation multiple,
the average response coefficient of flat response X-ray detector F-XRD7,
the resistance of oscillograph 8.Therefore, according to principle and the voltage signal values of spatial discrimination radiant flux detecting devices
, just can obtain radiant flux
.
Fig. 3 is the visible images of camera collection in spatial discrimination radiant flux detecting devices aiming process of the present utility model, and Fig. 4 is the x-ray image that borescopic imaging plate record limit by spatial discrimination radiant flux detecting devices of the present utility model in Targeting process.Little black circle in Fig. 3 in large black circle is aiming area under visible light, and the speck in Fig. 4 is black chamber inlet inner laser striking point facular area, and black circle is aiming under X-ray and search coverage.The utility model achieves successful Application at God Light III prototype laser device, and in the present embodiment, the black chamber chosen is diameter 1.2mm, long 2.4mm, the golden chamber of inlet 0.85mm.Eight bundle 3 frequencys multiplication, 800J/1.5ns laser, injects black chamber with 45 ° from inlet two ends, black chamber respectively.First, be illuminated by visible light black chamber inlet, aimed at by lens ring 10 auxiliary space resolving radiation stream detecting devices, aim at result, as shown in Figure 3.Then carry out laser target shooting, oscillograph 8 has been recorded to effective voltage signal, and by computer 9 in conjunction with above theory deduction, process obtains the radiant flux exact value of aiming area.Also the actual detection region of equipment in black chamber has been recorded to, as shown in Figure 4 with time limit borescopic imaging plate 5.
Embodiment 2
The present embodiment is identical with the structure of embodiment 1, difference is, angle between described camera 4 sight line and light path straight line is 40 °, the pinhole diameter of described pinhole plate is 80um, the tantalum piece of described pinhole plate to be thickness be 20um, the limit hole of described limit borescopic imaging plate 5 is 3mm with the limit bore dia of limit orifice plate 6, described limit orifice plate 6 for thickness be the tantalum piece of 20um.
Those of ordinary skill in the art will appreciate that, embodiment described here is to help reader understanding's principle of the present utility model, should be understood to that protection domain of the present utility model is not limited to so special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combination of not departing from the utility model essence according to these technology enlightenment disclosed in the utility model, and these distortion and combination are still in protection domain of the present utility model.
Claims (7)
1. a spatial discrimination radiant flux detecting devices, it is characterized in that, described equipment comprises camera (4) and the apeture lens assembly (3) be arranged in order in light path, limit borescopic imaging plate (5), limit orifice plate (6), flat response X-ray detector F-XRD(7); Described apeture lens assembly (3) comprises pinhole plate (11) and lens ring (10), and described pinhole plate (11) is nested in the middle part of lens ring (10); Described limit borescopic imaging plate (5) is pasted onto in limit orifice plate (6); Pin hole center on described pinhole plate (11), limit borescopic imaging plate (5) Xian Kong center, limit orifice plate (6) Xian Kong center and flat response X-ray detector F-XRD(7) sensitive face center on same light path straight line; Black chamber (1) is placed in the front of apeture lens assembly (3); Be provided with an angle between camera (4) sight line and light path straight line, camera (4) for real time monitoring limit borescopic imaging plate (5) upper by lens ring (10) to visible ray picture formed by black chamber (1) inlet and limit position relationship between hole;
Black chamber (1) inlet sends visible ray, and in apeture lens assembly (3), lens ring is imaged onto in limit borescopic imaging plate (5), determines the position relationship of the visible ray picture limitting borescopic imaging plate (5) limit hole and black chamber (1); The X ray that black chamber (1) inlet sends is through after pin hole in apeture lens assembly (3), X ray is through the limit hole of limit borescopic imaging plate (5) and the limit hole limitting orifice plate (6), arrive flat response X-ray detector F-XRD(7) sensitive face, cause flat response X-ray detector F-XRD(7) response, X ray can flow the radiant flux being corresponded to territory, black chamber (1) inlet internal zone dividing by limit hole, records black chamber (1) inlet become actinogram by pin hole in apeture lens assembly (3) with time limit borescopic imaging plate (5).
2. spatial discrimination radiant flux detecting devices according to claim 1, is characterized in that, described lens ring (10) primary optical axis is perpendicular to described pinhole plate (11).
3. spatial discrimination radiant flux detecting devices according to claim 1, is characterized in that, the angular range between described camera (4) sight line and light path straight line is 20 ° ~ 40 °.
4. spatial discrimination radiant flux detecting devices according to claim 1, is characterized in that, object distance, the image distance of the object distance of described lens ring (10) imaging, image distance and pinhole plate (11) pin-hole imaging are identical respectively.
5. spatial discrimination radiant flux detecting devices according to claim 1, is characterized in that, the limit hole of described limit borescopic imaging plate (5) is identical with the limit hole size of described limit orifice plate (6).
6. spatial discrimination radiant flux detecting devices according to claim 1, it is characterized in that, limit hole and the limit bore dia of limit orifice plate (6) of described limit borescopic imaging plate (5) are greater than the product through the device space resolution of theory calculate and the pin-hole imaging enlargement factor of apeture lens assembly (3), and be less than the product of the pin-hole imaging enlargement factor of described black chamber (1) inlet size and apeture lens assembly (1), be less than flat response X-ray detector F-XRD(7 simultaneously) sensitive face size.
7. spatial discrimination radiant flux detecting devices according to claim 1, is characterized in that, described flat response X-ray detector F-XRD(7) adopt based on the time, through absolute calibration, at photon energy range 0.1 ~ 4KeV flat response X-ray detector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520699115.4U CN204989494U (en) | 2015-09-11 | 2015-09-11 | Radiant flux detection equipment is distinguishd in space |
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| CN201520699115.4U CN204989494U (en) | 2015-09-11 | 2015-09-11 | Radiant flux detection equipment is distinguishd in space |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158789A (en) * | 2015-09-11 | 2015-12-16 | 中国工程物理研究院激光聚变研究中心 | Spatial distinguishing radiant flux detection apparatus |
| CN108663894A (en) * | 2018-05-16 | 2018-10-16 | 中国工程物理研究院上海激光等离子体研究所 | Framing camera diagnostic system on II laser aid of God Light and its adjusting method |
-
2015
- 2015-09-11 CN CN201520699115.4U patent/CN204989494U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158789A (en) * | 2015-09-11 | 2015-12-16 | 中国工程物理研究院激光聚变研究中心 | Spatial distinguishing radiant flux detection apparatus |
| CN105158789B (en) * | 2015-09-11 | 2017-08-15 | 中国工程物理研究院激光聚变研究中心 | A kind of spatial discrimination radiant flux detecting devices |
| CN108663894A (en) * | 2018-05-16 | 2018-10-16 | 中国工程物理研究院上海激光等离子体研究所 | Framing camera diagnostic system on II laser aid of God Light and its adjusting method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ren Kuan Inventor after: Deng Keli Inventor after: Yao Li Inventor after: Yang Guohong Inventor after: Li Sanwei Inventor after: Jiang Shaoen Inventor after: Ding Yongkun Inventor after: Liu Shenye Inventor after: Hou Lifei Inventor after: Du Huabing Inventor after: Jing Longfei Inventor after: Zhang Wenhai Inventor after: Zhao Yang Inventor after: Yang Zhiwen Inventor after: Wei Minxi Inventor before: Ren Kuan Inventor before: Yao Li Inventor before: Yang Guohong Inventor before: Li Sanwei Inventor before: Jiang Shaoen Inventor before: Ding Yongkun Inventor before: Liu Shenye Inventor before: Hou Lifei Inventor before: Du Huabing Inventor before: Jing Longfei Inventor before: Zhao Yang Inventor before: Yang Zhiwen Inventor before: Wei Minxi Inventor before: Deng Keli |
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| COR | Change of bibliographic data | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20170815 |
|
| AV01 | Patent right actively abandoned |