CN205124102U - Prevent that X ray from revealing and improving light path restriction slit structure of image quality - Google Patents
Prevent that X ray from revealing and improving light path restriction slit structure of image quality Download PDFInfo
- Publication number
- CN205124102U CN205124102U CN201520374879.6U CN201520374879U CN205124102U CN 205124102 U CN205124102 U CN 205124102U CN 201520374879 U CN201520374879 U CN 201520374879U CN 205124102 U CN205124102 U CN 205124102U
- Authority
- CN
- China
- Prior art keywords
- ray
- light path
- plate
- image quality
- base plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
本实用新型公开一种防止X射线泄露以及提高成像质量的光路限制狭缝结构，包括底板、侧板和围板，所述底板上开有狭缝，所述底板、侧板和围板之间通过螺栓固定，所述底板、侧板和围板材料为钢，通过设置狭缝的宽度与X射线的光源以及通道之间的相对位置，本实用新型从射线入射的源头控制，将辐射泄露控制在一定的范围内，而且狭缝对光路起到了准直作用，大大降低了无关的杂散光的影响，提高了图像成像质量，对异物信号的提取和检测灵敏度的提高，乃至整机性能的提高都具有重要意义，同时，本实用新型的防护措施中，并没有使用铅，降低了工艺的难度、整机的重量以及减少了不必要的铅污染。
The utility model discloses an optical path limiting slit structure for preventing X-ray leakage and improving imaging quality, comprising a bottom plate, a side plate and a surrounding plate, a slit is opened on the bottom plate, and a Fixed by bolts, the material of the bottom plate, side plate and coaming plate is steel, and by setting the width of the slit and the relative position between the X-ray light source and the channel, the utility model controls the source of the ray incident and controls the radiation leakage. Within a certain range, and the slit has a collimating effect on the optical path, which greatly reduces the influence of irrelevant stray light, improves the image imaging quality, improves the extraction of foreign object signals and detection sensitivity, and even improves the performance of the whole machine All have important significance, meanwhile, in the protection measure of the present utility model, lead is not used, has reduced the difficulty of process, the weight of complete machine and has reduced unnecessary lead pollution.
Description
Technical field
The utility model relates to extraordinary detection field, particularly a kind of light path restriction narrow slit structure preventing X ray leakage and raising image quality.
Background technology
As the extraordinary detection means of one, it is strong that X ray has penetration capacity, due to can detecting object internal structure feature and be widely used in all trades and professions.But due to the naked eyes invisibility of X ray and the irreversibility to human injury, the every country that is applied in of the equipment of X ray has strict administrative provisions and the strict market access limitation.One of them very important index is exactly the restriction of radiation leaks dosage, and at present in the world, except the U.S. limits 5 μ Sv/h, other countries all limit radiation dose leakage rate and are less than 1 μ Sv/h.Equipment a lot of at present adopts lead protection, and so weight not only increasing complete machine, adds the difficulty of process aspect, but also introduces the pollution of virose heavy metal lead.
Closely, the method improving now picture quality mainly contains for the detection sensitivity of special equipment and the relationship between quality of imaging: improve the power of light source, use the higher detector of resolution and the impact reducing scattered light etc. instead.
Utility model content
The utility model provides a kind of and prevents X ray from revealing and improve the light path restriction narrow slit structure of image quality, when using X ray to detect, effectively prevents X ray from revealing; Also serve collimating effect to light path, greatly reduce the impact of irrelevant stray light, improve image image quality, to the extraction of foreign matter signal and the raising of detection sensitivity, and even the raising of overall performance is all significant.
The technical solution adopted in the utility model is:
Prevent X ray from revealing and improve a light path restriction narrow slit structure for image quality, comprising base plate, side plate and coaming plate, described base plate has slit, described base plate, to be bolted between side plate and coaming plate.
As preferably, described base plate, side plate and plate material are the metal material heavier to radiation absorption of steel or other nonhazardous.
Preferably, when the radiographic source maximum working voltage of transmitting X ray is 80keV, the thickness of base plate, side plate and coaming plate is at least 16mm; When the radiographic source maximum working voltage of transmitting X ray is 100keV, the thickness of base plate, side plate and coaming plate is at least 20mm; When the radiographic source maximum working voltage of transmitting X ray is 160keV, the thickness of base plate, side plate and coaming plate is at least 40mm.
As preferably, the light source distance that described slot distances sends X ray is L1, the width of the slit of light path restriction narrow slit structure is W1, being used for receiving the X ray distance of carrying out between the linear array detector of imaging and light source is L2, the width of the rectangular perform hole down through X ray of material channel is at least (L2/L1) * W1, and length is conveyer belt width.
Further, that is close to the light source sending X ray above described side plate goes out critical point, is fixed on hollow out on optical branch support below described base plate, and hollow out slit width direction is parallel to conveyer belt direction.
Preferably, described optical branch support has certain tolerance and regulate moving range, ensure the adjustment of light source, slit, rectangular perform hole, hollow out and linear array detector on a vertical line.
Further, below described base plate, material channel is set, the top and bottom of described material channel are provided with material channel top panel slot and material channel lower panel slot, described material channel top panel slot and material channel lower panel slot all use the more weak resin material of radiation absorption or plastic seal, prevent dust from entering cabinet.
The beneficial effects of the utility model are:
The utility model employing Steel material makes the structure with slit, from the Sources controlling of ray incidence, radiation leaks is controlled in certain scope, the utility model also serves collimating effect to light path, greatly reduce the impact of irrelevant stray light, improve image image quality, to the extraction of foreign matter signal and the raising of detection sensitivity, and even the raising of overall performance is all significant, simultaneously, in safeguard procedures of the present utility model, do not use lead, reduce the difficulty of technique, the weight of complete machine and decrease unnecessary lead contamination.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is a kind of light path restriction narrow slit structure cutaway view preventing X ray leakage and raising image quality of the utility model.
Fig. 2 is a kind of light path restriction narrow slit structure schematic diagram preventing X ray leakage and raising image quality of the utility model.
Fig. 3 is the light path geometric representation of the utility model conveyer belt transmission direction section.
Fig. 4 is the light path geometric representation of the utility model vertical conveyors transmission direction section.
Fig. 5 is the utility model embodiment front view.
Fig. 6 is the utility model embodiment end view.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As depicted in figs. 1 and 2, the utility model discloses a kind of light path restriction narrow slit structure preventing X ray leakage and raising image quality, comprise base plate 100, side plate 102 and coaming plate 103, described base plate 100 has slit 101, described base plate 100, to be bolted between side plate 102 and coaming plate 103, described base plate 100, side plate 102 and coaming plate 103 all use Steel material to make, and are convenient to protect ray.
When the radiographic source maximum working voltage of transmitting X ray is 80keV, the thickness of base plate 100, side plate 102 and coaming plate 103 is at least 16mm; When the radiographic source maximum working voltage of transmitting X ray is 100keV, the thickness of base plate 100, side plate 102 and coaming plate 103 is at least 20mm; When the radiographic source maximum working voltage of transmitting X ray is 160keV, the thickness of base plate 100, side plate 102 and coaming plate 103 is at least 40mm.
As shown in Figure 3, the light path geometric representation of the utility model conveyer belt transmission direction section.Send the luminous point emergent ray 200 of the light source of X ray, the beam of ray 200 only has slit 101 position to pass through, remaining is all absorbed by Steel material, beam is successively by the rectangular perform hole 204 in below below the rectangular perform hole of top panel 203 of the hollow out of light source bracing frame 3, material channel, material channel conveyer belt afterwards, finally arrives linear array detector 205.If light source 200 is L1 to the distance of slit 101, the width w1 of slit, light source 200 is to the distance L2 of linear array detector 205, the width of the rectangular perform hole of material channel top panel and the rectangular perform hole of material channel lower panel is at least (L2/L1) * w1, because slit 101 width only has 1 ~ 2mm, and light source is to the distance L1 of slit 101 and detector to the distance L2 of light source, relation L2 approximates 2.5*L1, according to simple geometrical relationship, light source 200 is from the ray of slit 101 outgoing, until be detected the maximum width being parallel to the direction of conveyer belt of device reception also only have 2.5 ~ 5mm, this just requires slit 101, slot 203, slot 204 and hollow out 3 will be aimed at, in order to avoid block ray, two slots 203 up and down of middle material channel, slot 204 can do larger, then with the resin material sealing more weak to radiation absorption, but the width of the photodetector element of linear array detector 205 only has about 1.5mm, it is more difficult to aim at, this just requires slit 101, slot 203, slot 204 and hollow out 3 must be strict aligning point-blank, otherwise ray may be caused to be blocked, even linear array detector 205 cannot receive light.In linear array detector 205, photodetector element is accurately fixed on the complete machine support of the center below material channel conveyer belt below slot 204 afterwards, tries one's best in top.And light source 200 has certain adjustable range relative to slit 101, prevent light source from not aiming at slit.
As shown in Figure 4, slit 101 light path is limited in just can cover linear array detector 205 and conveyer belt width on, make image-capture field cover whole conveyer belt width.
As shown in Figure 5 and Figure 6, X-ray source 200, light path restriction narrow slit structure 101, the supporting construction 3 of light source is placed from top to bottom successively, the ray of X-ray source 200 outgoing of the fan-shaped bright dipping that the angle of divergence is different is in two perpendicular direction through light path restriction narrow slit structure 101, again through light source bracing frame 3, again by after material channel 6, incide ray detector 205, light on conveyer belt direction of transfer is restricted in very narrow scope through light path restriction narrow slit structure 101 by the ray that the utility model light source 200 sends, to the Qianmen 9 of material channel 6 and enter, the radiation protection difficulty of discharging opening reduces greatly, entering of shown material channel 6, outlet is all hung and is imported and exported plumbous curtain suspension 7, protection ray is revealed.Steel plate protection owing to there is multilayer below linear array detector 205 below conveyer belt 8 does not have problems.Such the utility model adopts and controls from the source of ray, use light path restriction narrow slit structure 101 dexterously, prevent the larger radiation leaks that the ray had nothing to do causes, and collimating effect is served to light path, greatly reduce the impact of irrelevant stray light, improve image image quality, to the extraction of foreign matter signal and the raising of detection sensitivity, and even the raising of overall performance is all significant, moreover owing to avoiding use heavy metal lead in the process, solve the pollution problem carrying out lead in radiation protection with lead in the past, simultaneously, weight and the cost of manufacture decreasing complete machine of the present utility model, reduce technology difficulty.
Above-described the utility model mode, does not form the restriction to the utility model protection range.Any do within spirit of the present utility model and principle amendment, equivalent to replace and improvement etc., all should be included within claims of the present utility model.
Claims (7)
1. prevent X ray from revealing and improve a light path restriction narrow slit structure for image quality, it is characterized in that, comprise base plate, side plate and coaming plate, described base plate has slit, described base plate, to be bolted between side plate and coaming plate.
2. prevent X ray from revealing according to claim 1 and improve the light path restriction narrow slit structure of image quality, it is characterized in that, described base plate, side plate and plate material are the metal material heavier to radiation absorption of steel or other nonhazardous.
3. according to claim 1 or 2, prevent X ray from revealing and improve the light path restriction narrow slit structure of image quality, it is characterized in that, when the radiographic source maximum working voltage of transmitting X ray is 80keV, the thickness of base plate, side plate and coaming plate is at least 16mm; When the radiographic source maximum working voltage of transmitting X ray is 100keV, the thickness of base plate, side plate and coaming plate is at least 20mm; When the radiographic source maximum working voltage of transmitting X ray is 160keV, the thickness of base plate, side plate and coaming plate is at least 40mm.
4. prevent X ray from revealing according to claim 1 and improve the light path restriction narrow slit structure of image quality, it is characterized in that, the light source distance that described slot distances sends X ray is L1, the width of the slit of light path restriction narrow slit structure is W1, being used for receiving the X ray distance of carrying out between the linear array detector of imaging and light source is L2, the width of the slot down through X ray of material channel is at least (L2/L1) * W1, and length is conveyer belt width.
5. prevent X ray from revealing according to claim 1 and improve the light path restriction narrow slit structure of image quality, it is characterized in that, that is close to the light source sending X ray above described side plate goes out critical point, be fixed on hollow out on optical branch support below described base plate, hollow out Width is parallel to conveyer belt direction.
6. prevent X ray from revealing according to claim 5 and improve the light path restriction narrow slit structure of image quality, it is characterized in that, described optical branch support has certain tolerance and regulate moving range, ensure the adjustment of light source, slit, rectangular perform hole, hollow out and linear array detector on a vertical line.
7. prevent X ray from revealing according to claim 1 and improve the light path restriction narrow slit structure of image quality, it is characterized in that, below described base plate, material channel is set, the top and bottom of described material channel are provided with the rectangular perform hole of material channel top panel and the rectangular perform hole of material channel lower panel, the rectangular perform hole of described material channel top panel and the rectangular perform hole of material channel lower panel all use the more weak resin material of radiation absorption or plastic seal, prevent dust from entering cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520374879.6U CN205124102U (en) | 2015-06-03 | 2015-06-03 | Prevent that X ray from revealing and improving light path restriction slit structure of image quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520374879.6U CN205124102U (en) | 2015-06-03 | 2015-06-03 | Prevent that X ray from revealing and improving light path restriction slit structure of image quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205124102U true CN205124102U (en) | 2016-03-30 |
Family
ID=55579667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520374879.6U Expired - Lifetime CN205124102U (en) | 2015-06-03 | 2015-06-03 | Prevent that X ray from revealing and improving light path restriction slit structure of image quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205124102U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104936366A (en) * | 2015-06-03 | 2015-09-23 | 合肥泰禾光电科技股份有限公司 | Optical path restriction slit structure for preventing X ray leakage and improving imaging quality |
-
2015
- 2015-06-03 CN CN201520374879.6U patent/CN205124102U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104936366A (en) * | 2015-06-03 | 2015-09-23 | 合肥泰禾光电科技股份有限公司 | Optical path restriction slit structure for preventing X ray leakage and improving imaging quality |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201199235Y (en) | Novel X-ray channel type safety-check system structure | |
| WO2009136400A3 (en) | X ray imaging system with scatter radiation correction and method of using same | |
| US7848486B2 (en) | Integrated system and integrating method for radioactive material detection and X-ray radiation imaging | |
| CN202119732U (en) | Channel type X-ray security inspector | |
| CN204166147U (en) | Promote the X-radiation imaging safe examination system of applicable value index | |
| CN110764155A (en) | Self-adaptive security check equipment based on transmission speed change and control method thereof | |
| CN104936366A (en) | Optical path restriction slit structure for preventing X ray leakage and improving imaging quality | |
| JP2015187567A5 (en) | ||
| Mhatre et al. | Dosimetric comparison of a-Si 1200 and a-Si 1000 electronic portal imager for intensity modulated radiation therapy (IMRT) | |
| CN205301609U (en) | Office building front door security installations | |
| CN205124102U (en) | Prevent that X ray from revealing and improving light path restriction slit structure of image quality | |
| CN105980836B (en) | Optical detection device | |
| CN202092973U (en) | CBS-based detector array of channel type security detector | |
| CN103064127A (en) | Digitization radiography (DR) and liquid spot (LS) and Compton back scattering (CBS) compound type X-ray passageway type security inspection device | |
| CN202794060U (en) | Device for detecting defects in glass substrate | |
| CN203275670U (en) | Inspection vehicle based on large fanned-beam Compton back scattering scanning technology | |
| CN104502944A (en) | Method for lowering detecting dose of radiation imaging system | |
| CN207263666U (en) | Luggage security inspection machine | |
| CN210954365U (en) | Security check equipment based on transmission speed change self-adaptation | |
| CN206114920U (en) | Detection system | |
| CN201622251U (en) | X-ray security inspection device | |
| CN205581324U (en) | Multi -functional human safety inspection device | |
| WO2020135989A3 (en) | X-ray detector device, glass body for shielding optical detector means of a workpiece measuring device, and x-ray tomography workpiece measuring system | |
| CN209784557U (en) | A multi-detection source X-ray detection device | |
| CN105268658B (en) | A kind of counting grain machine fragment device for eliminating and its elimination method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 230000 intersection of Fangxing Avenue and Yulan Avenue, Taohua Industrial Park, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Hefei Taihe Intelligent Technology Group Co.,Ltd. Address before: 230000 intersection of Fangxing Avenue and Forest Avenue, Zipeng industrial cluster, Feixi County, Hefei City, Anhui Province Patentee before: HEFEI TAIHE OPTOELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20160330 |