CN202444546U - Transverse U-shaped secondary reflection optical path structure with nuclear-radiation-resisting function - Google Patents
Transverse U-shaped secondary reflection optical path structure with nuclear-radiation-resisting function Download PDFInfo
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- CN202444546U CN202444546U CN2012200190144U CN201220019014U CN202444546U CN 202444546 U CN202444546 U CN 202444546U CN 2012200190144 U CN2012200190144 U CN 2012200190144U CN 201220019014 U CN201220019014 U CN 201220019014U CN 202444546 U CN202444546 U CN 202444546U
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- electron camera
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Abstract
The utility model discloses a transverse U-shaped secondary reflection optical path structure with a nuclear-radiation-resisting function, comprising a shielding framework, shielding layers, specular reflection surfaces and an electronic camera. The shielding framework is a steel structure fixing frame with an approximate transverse U-shape, and comprises an upper shielding frame, a lower shielding frame and a side shielding frame; there are two specular reflection surfaces which respectively forms an 45-DEG included angle with the upper shielding frame, the lower shielding frame and the side shielding frame; the electronic camera is arranged at one side near the opening in the shielding space; the shielding layers are arranged at the back side and two side surfaces of the electronic camera; the electronic camera is arranged near the upper shielding frame; and the shielding layers arranged at the back side and two side surfaces of the electronic camera are all the combination of a nickel-tungsten alloy shielding layer and a polyethylene shielding layer, and the back side of the electronic camera is the surface facing at the radiation source. According to the utility model, the structure is smart, the brightness adaptation scope is wide, application effect is good, and the monitor and record of an object with a strong nuclear radiation characteristic before and after an accident can be achieved.
Description
Technical field
The utility model relates to a kind of twice reflected light path structure of horizontal stroke " U " shape with anti-nuclear radiation function.Under the situation of nuclear radiation source irradiation; The shoot and monitor instrument that exposes under ray all can sustain damage owing to the ionization radiation effect and the displacement radiation effect of components and parts; Cause vision signal gross distortion or no signal, can't operate as normal, and produce the equipment permanent damage thereupon.The utility model relates to the shoot and monitor instrument method for designing how normal expansion video image is kept watch under the shielding material protection, belongs to " Nuclear Science and Technology " technical field.
Background technology
Nuclear radiation is that atomic nucleus changes the microcosmic particle stream that is discharged another kind of structure or the another kind of energy state process into from a kind of structure or a kind of energy state.Nuclear radiation is to be made up of gamma-rays, alpha ray, β ray, neutron etc., mainly is ionising radiation to the damage of electronic image pickup apparatus, and it can make charge-coupled device (CCD) etc. cause ionization or excite, and causes equipment fault.So take the necessary protection shielding measure, be normal lasting prerequisite and the basis that relates to the nuclear target of keeping watch on.
Since the electro-photographic equipment all be usually with optical lens directly in the face of target object, and the gamma ray that damage effect is the strongest in the nuclear radiation and fast neutron to be orthoscopic radiate, penetration is passed through, so be inevitable to the damage of electro-photographic equipment.Tradition all is the radiation hardening that adopts charge coupled device to the anti-nuclear radiation method of shoot and monitor equipment; This method relates to the processing of precise electronic components and parts, and condition is harsh, cost is high, and protection effect is unstable, can not satisfy relating to the long-time video monitoring demand of nuclear facility equipment.During actual needs, on the basis of common picture pick-up device, carry out shielding construction design cleverly, can reach well anti-nuclear radiation effect.
The combination that the utility model utilizes optical reflection and refraction principle and nuclear radiation shield material protection technology has realized the protection of electro-photographic equipment to nuclear radiation.According to the reflection and the refraction principle of optics, the design reflectivity structure, energy and the refractive power loss of assessing twice optical reflection concern; Imaging effect is tested, confirmed light channel structure, the advantage of this structure is: gamma ray in the nuclear radiation and fast neutron; Directly penetrate minute surface, be not reflected; And light pulse can be close to completely by direct reflection (through primary event, 2% energy loss only being arranged); Nuclear radiation shield material protection technology is to utilize us that the nuclear radiation shield performance of different atomic number materials is tested and comprehensive assessment, selects the nuclear radiation shield material practical, that protection effect is good.Comprehensively both testing results can realize relating to the closely video monitoring of nuclear target.
The utility model content
The purpose of the utility model is to provide a kind of twice reflected light path structure of horizontal stroke " U " shape with anti-nuclear radiation function; Under the condition that is implemented in strong nuclear radiation; The electro-photographic equipment can be under the protection of shielding material operate as normal, obtain steady and audible image.
A kind of twice reflected light path structure of horizontal stroke " U " shape with anti-nuclear radiation function is characterized in that:
This structure specifically comprises shielding frame, screen, mirror reflection surface, the electron camera that is used for fixing light channel structure; Wherein said shielding frame is the steel construction fixed mount of approximate horizontal " U " shape; Comprise mask frame, following mask frame and side mask frame; Forming a side has the shielding space of opening; Described mirror reflection surface is two, respectively with last mask frame, side mask frame, mask frame makes that the incident ray in the shielding space is parallel with reflection ray behind two secondary reflections in angle of 45 degrees down; Electron camera is installed in the interior side near opening of shielding space; Screen is arranged on the back side and two sides of electron camera, and the back side of wherein said electron camera is meant the one side that faces radiation source; Ratio over against the screen of the one side of radiation source and the thickness of the screen of side is 8:1;
Wherein, described electron camera is arranged on the position near last mask frame.
Wherein, at the described electron camera back side and the screen that is provided with of side be tungsten nickel screen and the compound mode of polyethylene screen, wherein the electron camera back side is meant the one side that faces radiation source.
A kind of twice reflected light path structure of horizontal stroke " U " shape with anti-nuclear radiation function of the utility model, advantage and effect are: (1) structure is ingenious.Directly with screen nuclear radiation is protected, electron camera is kept watch on through direct reflection and is related to the nuclear objective body.(2) the adaptation brightness scope is wide.Having under the condition of light, electron camera obtains imaging through direct reflection, under dull thread dark condition at night, through the photo resistance perception, opens near-infrared light source automatically, relates to the nuclear target through twice direct reflection irradiation, and electron camera normally obtains image.(3) effect is good.Through application units' evidence, protective capacities is strong, effective.(4) be fit to have supervision and record before and after the accident of objective body of strong nuclear radiation characteristic.
Description of drawings
Shown in Figure 1 is the structural representation of the utility model
Label is following among the figure:
1, electron camera 3, direct reflection warp 4, tungsten nickel screen
5, polyethylene screen 61, last mask frame 62, following mask frame 64, side mask frame
Embodiment
Below in conjunction with accompanying drawing, the technical scheme of the utility model is done further explanation.
As shown in Figure 1, a kind of twice reflected light path structure of horizontal stroke " U " shape with anti-nuclear radiation function is characterized in that:
This structure specifically comprises shielding frame, screen, mirror reflection surface, the electron camera that is used for fixing light channel structure; Wherein said shielding frame is the steel construction fixed mount of approximate horizontal " U " shape; Comprise mask frame 61, following mask frame 62 and side mask frame 64; Forming a side has the shielding space of opening; Described mirror reflection surface 3 is two, respectively with last mask frame 61, side mask frame 64, mask frame 62 makes that the incident ray in the shielding space is parallel with reflection ray behind two secondary reflections in angle of 45 degrees down; Electron camera 1 be installed in the shielding space near a side of opening and near on the position of mask frame 61; Screen is arranged on the back side and two sides of electron camera 1, and the back side of wherein said electron camera 1 is meant the one side that faces radiation source; Ratio over against the screen of the one side of radiation source and the thickness of the screen of side is 8:1; At the described electron camera back side and the screen that is provided with of side be the compound mode of tungsten nickel screen 4 and polyethylene screen 5, wherein the electron camera back side is meant the one side that faces radiation source.
Claims (1)
1. twice reflected light path structure of horizontal stroke " U " shape with anti-nuclear radiation function; It is characterized in that: this structure specifically comprises shielding frame, screen, mirror reflection surface, the electron camera that is used for fixing light channel structure; Wherein said shielding frame is the steel construction fixed mount of approximate horizontal " U " shape; Comprise mask frame, following mask frame and side mask frame, form the shielding space that there is opening a side, described mirror reflection surface is two; Respectively with last mask frame, side mask frame, mask frame makes that the incident ray in the shielding space is parallel with reflection ray behind two secondary reflections in angle of 45 degrees down; Electron camera is installed in the interior side near opening of shielding space; Screen is arranged on the back side and two sides of electron camera, and the back side of wherein said electron camera is meant the one side that faces radiation source; Ratio over against the screen of the one side of radiation source and the thickness of the screen of side is 8:1; Described electron camera is arranged on the position near last mask frame; At the described electron camera back side and the screen that is provided with of side be tungsten nickel screen and the compound mode of polyethylene screen, wherein the electron camera back side is meant the one side that faces radiation source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200190144U CN202444546U (en) | 2012-01-16 | 2012-01-16 | Transverse U-shaped secondary reflection optical path structure with nuclear-radiation-resisting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200190144U CN202444546U (en) | 2012-01-16 | 2012-01-16 | Transverse U-shaped secondary reflection optical path structure with nuclear-radiation-resisting function |
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| Publication Number | Publication Date |
|---|---|
| CN202444546U true CN202444546U (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200190144U Expired - Lifetime CN202444546U (en) | 2012-01-16 | 2012-01-16 | Transverse U-shaped secondary reflection optical path structure with nuclear-radiation-resisting function |
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| CN (1) | CN202444546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292897A (en) * | 2012-09-24 | 2013-09-11 | 天津思博科科技发展有限公司 | Fast testing device for LED spherical lamp luminous flux |
-
2012
- 2012-01-16 CN CN2012200190144U patent/CN202444546U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292897A (en) * | 2012-09-24 | 2013-09-11 | 天津思博科科技发展有限公司 | Fast testing device for LED spherical lamp luminous flux |
| CN103292897B (en) * | 2012-09-24 | 2015-07-08 | 天津思博科科技发展有限公司 | Fast testing device for LED spherical lamp luminous flux |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |