CN107479084A - A kind of nuclear radiation shield structure of whole-body counter - Google Patents
A kind of nuclear radiation shield structure of whole-body counter Download PDFInfo
- Publication number
- CN107479084A CN107479084A CN201710691731.9A CN201710691731A CN107479084A CN 107479084 A CN107479084 A CN 107479084A CN 201710691731 A CN201710691731 A CN 201710691731A CN 107479084 A CN107479084 A CN 107479084A
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- layer
- steel plate
- copper coin
- stereotype
- shield
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
- G01T1/163—Whole body counters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
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- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention discloses a kind of nuclear radiation shield structure of whole-body counter, including personnel's shield, front, bottom surface and the top surface of personnel's shield include at least 6 layers of steel plate, at least 1 layer of stereotype, at least at least 1 layer of copper coin, the 1 layer of plastic plate stacked gradually from outside to inside, and the left and right sides includes at least 8 layers of steel plate, at least 1 layer of copper coin and at least 1 layer of plastic plate stacked gradually from outside to inside.Front, bottom surface and the top surface of its personnel's shield are from outside to inside using steel plate, stereotype, copper coin, the stepped construction of plastic plate, the left and right sides uses the stepped construction of steel plate, copper coin and plastic plate from outside to inside, shield effectiveness is improved, detection limit can be at least effectively reduced to 150Bq.
Description
Technical field
The present invention relates to whole-body counter field, and in particular to a kind of nuclear radiation shield structure of whole-body counter.
Background technology
With the fast development of nuclear technology, it is more and more to be engaged in unit and the personnel of Nuclear Techniques and application, to whole body
The demand of counter is increasing, actinometry index request more and more higher, and the composition of its shield is the weight of lifting detection limit
Want method.The shield of whole-body counter is using the method for whole steel sheet or steel plate leading plate structure shield at present, for iodine
Whole-body counter is received in change, when measuring 1 minute 60Co its detection be limited to 180Bq, or even 200Bq, using existing structure its
Shield effectiveness does not reach technical indicator.
The content of the invention
In order to solve the above-mentioned technical problem the present invention provides a kind of nuclear radiation shield structure of whole-body counter.
The present invention is achieved through the following technical solutions：
A kind of nuclear radiation shield structure of whole-body counter, including personnel's shield, front, the bottom of personnel's shield
Face and top surface include at least 6 layers of steel plate, at least 1 layer of stereotype, at least at least 1 layer of copper coin, the 1 layer of plastics stacked gradually from outside to inside
Plate, the left and right sides include at least 8 layers of steel plate, at least 1 layer of copper coin and at least 1 layer of plastic plate stacked gradually from outside to inside.
A kind of nuclear radiation shield structure of whole-body counter also includes detector shield, and the face of face personnel's shield is
One layer of 3mm polyethylene panel, its front, side, bottom surface and top surface are all laminated using the thick 8 layers of steel plates of 12mm.
This programme improves on the basis of existing technology, and each face uses above-mentioned stepped construction, improves to the external world
Shield effectiveness, steel plate shields outer grenz rays, and the absorbable high energy gamma of lead and cosmic ray act on secondary ray caused by steel plate,
Copper can absorb caused secondary radiation in lead, and plastic plate can reduce backscattering effect, can be with so as to improve shield effectiveness
Detection limit is at least effectively reduced to 150Bq, shield effectiveness greatly improves, and reaches technical indicator.Personnel's screen of this programme
Cover body and use above-mentioned stepped construction, for secondary ray after copper coin absorbs, residual ray is seldom as caused by steel plate, and
And without face detector front, the steel plate stacked gradually, copper coin and plastic plate are only set in the left and right sides, you can reach left and right
The shielding action of both sides.It is big for the intensity of steel plate, it is easy to equipment to equip and fix, is disposed at outermost layer, can not only rise
To good fixation, outer grenz rays also can be effectively shielded；Stereotype is arranged on the second layer, and stereotype absorbs cosmic ray and ring
Border is more than steel plate in the ability of secondary ray caused by steel plate and absorbs cosmic ray and environment in secondary ray caused by steel plate
Ability, furthermore the thickness of steel plate be far longer than stereotype, cosmos ray and environment in the unnecessary cosmos ray of secondary ray caused by steel plate and
Environment is in secondary ray caused by stereotype；The absorbability of copper coin is stronger, can absorb the secondary ray of steel plate and stereotype；Plastics
It is the radiation for avoiding light that plate, which is placed on the inside one, additionally facilitates installation and safeguards.Front, bottom surface and top surface stack step using above-mentioned
Suddenly, it is greatly improved shield effectiveness.
Preferably, every layer of steel plate, stereotype and copper coin are respectively by different size, the steel plate of same thickness, stereotype and copper coin
It is spliced.
Preferably, in order to strengthen shield effectiveness, the splicing gap of different interlayers is not on same section.
Preferably, positive 6 layers of steel plate for including stacking gradually from outside to inside of personnel's shield, 1 layer of stereotype, 1
Layer copper coin, 1 layer of plastic plate, the left and right sides include 8 layers of steel plate, 1 layer of copper coin and the 1 layer of plastic plate stacked gradually, bottom from outside to inside
Face and top surface include 6 layers of steel plate, 1 layer of stereotype, 1 layer of copper coin and the 1 layer of plastic plate stacked gradually from outside to inside.
The present invention compared with prior art, has the following advantages and advantages：
1st, front, bottom surface and the top surface of personnel's shield of the invention are from outside to inside using steel plate, stereotype, copper coin, plastics
The stepped construction of plate, the left and right sides use the stepped construction of steel plate, copper coin and plastic plate, improve shield effectiveness from outside to inside,
Detection limit can be at least effectively reduced to 150Bq.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention.
Mark and corresponding parts title in accompanying drawing：
1st, personnel's shield, 11, front, 2, detector shield.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
A kind of nuclear radiation shield structure of whole-body counter as shown in Figure 1, including the shielding of personnel's shield 1, detector
Body, detector and Digital Spectrometer, detector shield, detector and Digital Spectrometer can use existing structure.The present embodiment
In in order to strengthen shield effectiveness, front 11, bottom surface and the top surface of personnel's shield include at least 6 layers stacked gradually from outside to inside
Steel plate, at least 1 layer of stereotype, at least 1 layer of copper coin, at least 1 layer of plastic plate, stereotype are fixed by screws on steel plate, and copper coin passes through
Screw is fixed on stereotype, and plastic plate is placed on copper coin, and plastic plate is fixed on copper coin by press strip；The left and right sides by
It is outer to the interior at least 8 layers of steel plate for including stacking gradually, at least 1 layer of copper coin and at least 1 layer of plastic plate, copper coin are fixed by screws in
On stereotype, plastic plate is placed on copper coin, and plastic plate is fixed on copper coin by press strip；Above-mentioned layer structure is arranged on machine
On frame, i.e., steel plate is fixed by screws in frame.Its thickness of above-mentioned layer structure uses thickness same as the prior art.People
The back side of member's shield refers to the one side being connected with detector shield 2, and described front, bottom surface, top surface, the left and right sides are herein
Refer to the orientation mode relative to the back side.
Embodiment 2
The present embodiment improves on the basis of above-described embodiment, i.e. every layer of steel plate is by different size, same thickness
Steel plate splicing forms；Every layer of stereotype is spliced by the stereotype of different size, same thickness, and every layer of copper coin is by different size, same
The copper coin of sample thickness is spliced.The splicing gap between different layers per face is not on same section.Every layer using splicing knot
Structure, one, which is easy for installation, safeguards, second, the adjacent interlayer plank fissure of displacement, avoids ray from entering screened room by gap, improves shielding
Effect.
Embodiment 3
The present embodiment a preferred embodiment, front, bottom of personnel's shield on the basis of above-described embodiment structure
Face and top surface include 6 layers of steel plate, 1 layer of stereotype, 1 layer of copper coin, the 1 layer of plastic plate stacked gradually from outside to inside, and steel plate uses thickness
For 12mm steel plate, 4 pieces of screws of every layer of use are fixed on the steel plate before it, in order to ensure shield effectiveness, every layer of seam
Place is not in same section, and every layer of stereotype uses 8 pieces of onesize, thickness to be fixed on for 24mm stereotype on steel plate, using 2mm's
Copper coin, avoid stereotype from sliding, most the inside is placed on using the plastic plate after 5mm, its top is fixed on using metal bead screw
On copper coin, plastic plate uses polyethylene panel；The left and right sides from outside to inside include stack gradually 8 layers of steel plate, 1 layer of copper coin and
1 layer of plastic plate, steel plate use 8 layers of 96mm steel plate, and copper coin screw thick 3mm is fixed on steel plate, and plastic plate thick 5mm is placed
After copper coin, its top is fixed on copper coin using metal bead screw.Using the structure, detection limit can be reduced to 150Bq.
As the increase of each structure level number, its shield effectiveness are better.
The back side of personnel's shield is connected with detector shield 2, and the face is vacant.Detector shield, face personnel's screen
The face for covering body is one layer of 3mm polyethylene panel, and its front, side, bottom surface and top surface are all using the thick 8 layers of steel plate layers of 12mm
It is folded to form.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (4)
1. a kind of nuclear radiation shield structure of whole-body counter, including personnel's shield, it is characterised in that personnel's shield
Front, bottom surface and top surface include at least 6 layers of steel plate, at least 1 layer of stereotype, at least 1 layer of copper coin, extremely stacked gradually from outside to inside
Few 1 layer of plastic plate, the left and right sides include at least 8 layers of steel plate, at least 1 layer of copper coin and at least 1 layer modeling stacked gradually from outside to inside
Flitch.
A kind of 2. nuclear radiation shield structure of whole-body counter according to claim 1, it is characterised in that every layer of steel plate,
Stereotype and copper coin are spliced by different size, the steel plate of same thickness, stereotype and copper coin respectively.
3. the nuclear radiation shield structure of a kind of whole-body counter according to claim 2, it is characterised in that different interlayers
Splice gap not on same section.
A kind of 4. nuclear radiation shield structure of whole-body counter according to claim 1, it is characterised in that personnel's screen
Cover the front of body includes the 6 layers of steel plate, 1 layer of stereotype, 1 layer of copper coin, the 1 layer of plastic plate that stack gradually from outside to inside, the left and right sides by
Outer 8 layers of steel plate, 1 layer of copper coin and the 1 layer of plastic plate for including stacking gradually in, bottom surface and top surface include stacking gradually from outside to inside
6 layers of steel plate, 1 layer of stereotype, 1 layer of copper coin and 1 layer of plastic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710691731.9A CN107479084A (en) | 2017-08-14 | 2017-08-14 | A kind of nuclear radiation shield structure of whole-body counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710691731.9A CN107479084A (en) | 2017-08-14 | 2017-08-14 | A kind of nuclear radiation shield structure of whole-body counter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107479084A true CN107479084A (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710691731.9A Pending CN107479084A (en) | 2017-08-14 | 2017-08-14 | A kind of nuclear radiation shield structure of whole-body counter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108573759A (en) * | 2018-05-21 | 2018-09-25 | 安徽双红机械制造有限公司 | A kind of compoboard for nuclear power neutron-absorbing |
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| CN201392402Y (en) * | 2009-04-14 | 2010-01-27 | 中国人民解放军第二炮兵装备研究院第二研究所 | Nuclear radiation monitoring field cabin |
| CN103330624A (en) * | 2013-07-10 | 2013-10-02 | 中国人民解放军总医院第一附属医院 | Vehicle-mounted shelter CT system for field environment |
| CN206194385U (en) * | 2016-08-31 | 2017-05-24 | 北京华科拓普电子仪器有限公司 | Passive ash analyzer 's environment radiation shielding room |
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2017
- 2017-08-14 CN CN201710691731.9A patent/CN107479084A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201392402Y (en) * | 2009-04-14 | 2010-01-27 | 中国人民解放军第二炮兵装备研究院第二研究所 | Nuclear radiation monitoring field cabin |
| CN103330624A (en) * | 2013-07-10 | 2013-10-02 | 中国人民解放军总医院第一附属医院 | Vehicle-mounted shelter CT system for field environment |
| CN206194385U (en) * | 2016-08-31 | 2017-05-24 | 北京华科拓普电子仪器有限公司 | Passive ash analyzer 's environment radiation shielding room |
Non-Patent Citations (2)
| Title |
|---|
| 胥建国: "加速器中子源中子照相系统屏蔽问题的研究", 《中国优秀硕士学位论文全文数据库（电子期刊）工程科技Ⅱ辑》 * |
| 邵文成: "医用电子直线加速器辐射防护和质量控制的Monte Carlo方法研究", 《中国优秀硕士学位论文全文数据库（电子期刊）工程科技Ⅱ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108573759A (en) * | 2018-05-21 | 2018-09-25 | 安徽双红机械制造有限公司 | A kind of compoboard for nuclear power neutron-absorbing |
| CN108573759B (en) * | 2018-05-21 | 2020-01-10 | 安徽双红机械制造有限公司 | Combined plate for nuclear power neutron absorption |
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Application publication date: 20171215 |
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