CN2440533Y - High density shielding device for gamma ray source - Google Patents
High density shielding device for gamma ray source Download PDFInfo
- Publication number
- CN2440533Y CN2440533Y CN 00254225 CN00254225U CN2440533Y CN 2440533 Y CN2440533 Y CN 2440533Y CN 00254225 CN00254225 CN 00254225 CN 00254225 U CN00254225 U CN 00254225U CN 2440533 Y CN2440533 Y CN 2440533Y
- Authority
- CN
- China
- Prior art keywords
- shielding
- ray source
- high density
- housed
- endoporus
- 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 - Fee Related
Links
- 230000005251 gamma ray Effects 0.000 title claims abstract description 13
- 229910001080 W alloy Inorganic materials 0.000 claims abstract description 11
- 239000010941 cobalt Substances 0.000 claims abstract description 10
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 10
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000012216 screening Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 3
- 230000002285 radioactive effect Effects 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 235000013495 cobalt Nutrition 0.000 description 7
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- GUTLYIVDDKVIGB-OUBTZVSYSA-N Cobalt-60 Chemical compound [60Co] GUTLYIVDDKVIGB-OUBTZVSYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000001959 radiotherapy Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a high density shielding device for a gamma ray source, comprising a hollow cylindrical outer covering shell, the lower end of which is provided with a bottom, and an outer cover is arranged inside a center hole of the top of a conical platform of the hollow cylindrical outer covering shell; an inner covering shell is arranged inside an inner hole of the outer covering shell, and the inner hole is provided with a bottom; cobalt granules are arranged in the inner hole of the inner covering shell, wherein, the inner hole is provided with a bottom, and the upper part of each cobalt granule is provided with a spacer block, the upper part of which is provided with an inner cover. All the components are made of stainless steel; cylindrical shielding stop blocks made of tungsten alloy are arranged in the inner hole of the upper part of the outer covering shell and between the outer cover and the inner cover, and a shielding circular sleeve made of tungsten alloy is additionally arranged between the inner and the outer covering shells. The utility model obviously reinforcing the shielding reliability of radioactive source, reducing the thickness and the weight of a shielding body, and enhancing the safety performance of shielding.
Description
This utility model relates to the parts of armarium, specifically a kind of high density screening arrangement of gamma-ray source.
In the medical radiotherapy system that adopts cobalt 60 as radioactive source, particularly at stereo directional radiative therapeutic equipment for example in the gamma knife, the gamma-ray source that the gamma-ray source prior art is installed generally adopts the inside and outside involucrum of double-layer stainless steel material, and the top that the interior involucrum of cobalt button is housed also only is provided with the inner cap and the enclosing cover of stainless steel.Because rustless steel density is lower, have to increase thickness when cylinder iron penetrating the source shield as gamma, and the increase of thickness causes easily the cast iron shield that defectives such as burning into sand, crack, bubble are arranged, cause that lonizing radiation leak, there is unsafe factor of using.
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of high density screening arrangement of improved gamma-ray source is provided, and adds the shielding reliability of strong radiation source, reduces thickness, the weight of shield, improves the security performance of shielding.
The purpose of this utility model is achieved in that
A kind of high density screening arrangement of gamma-ray source, comprise that a upper end has taper type top, lower end that the outer envelope of the hollow cylinder at the end is arranged, in its frustum top center hole enclosing cover is housed, having of outer envelope interior involucrum is housed in the end endoporus, should in the endoporus that the end is arranged of interior involucrum cobalt button be housed, cushion block is equipped with on cobalt button top, inner cap is equipped with on cushion block top, the material of above-mentioned each assembly is rustless steel, it is characterized in that: in the top endoporus of described outer envelope, the shielding link stopper of the cylinder of tungsten alloy material is housed between enclosing cover and inner cap.
Have in the bottom of described outer envelope a hollow shielding circle cover is housed in the end endoporus, involucrum in installing in the endoporus of this shielding circle cover, the material that this shielding circle overlaps is a tungsten alloy.
The diameter of bore d of involucrum in described
1Value between 0.8-3.6mm, its outer diameter D
1Value between 5-10mm, its overall height H
1Value between 10-38mm.
The outer diameter D of the lower cylindrical body of described outer envelope
2Value between 15-45mm, its height overall H
2Value between 15-60mm.
This utility model has following actively useful effect:
The shielding link stopper of this product installing tungsten alloy above the interior involucrum that 60 of cobalts are installed, between inner cap and enclosing cover, and the hollow shielding circle of setting up the tungsten alloy material between inside and outside involucrum overlaps, because the density of tungsten alloy is higher, its screening ability is higher than rustless steel, after having added this twice barrier, the cast iron shield just can be done thinlyyer, alleviates whole thickness and weight, improves the security performance of shielding.
Now in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of this utility model one embodiment;
Fig. 2 is to be another embodiment with Fig. 1;
Fig. 3 is the structural representation of shielding link stopper among Fig. 1;
Fig. 4 is the structural representation of interior involucrum among Fig. 1;
Fig. 5 is the structural representation of outer envelope among Fig. 1, Fig. 2.
Accompanying drawing number:
1. 101. ends of outer envelope
2. enclosing cover 3. shields link stoppers
4. inner cap 5. cushion blocks
6. 601. ends of interior involucrum
7. cobalt button 8. shielding circles overlap
Please refer to Fig. 1, this utility model is parts in the gamma knife complete machine, present patent application does not relate to complete machine, only relate to the parts in the complete machine---the high density screening arrangement of gamma-ray source, the structure of this device comprises that there is the taper type top upper end, there is the outer envelope 1 of the hollow cylinder at the end 101 lower end, in its frustum top center hole enclosing cover 2 is housed, involucrum 6 in having of outer envelope 1 is equipped with in the end endoporus, should in the endoporus that the end 601 is arranged of interior involucrum cobalt button 7 be housed, cushion block 5 is equipped with on cobalt button 7 tops, inner cap 4 is equipped with on cushion block 5 tops, the material of above-mentioned each assembly is rustless steel, in the top endoporus of described outer envelope 1, the shielding link stopper 3 of the cylinder of tungsten alloy material is housed between enclosing cover 2 and inner cap 4, sees Fig. 3.
Please refer to Fig. 2, have in the bottom of described outer envelope 1 a hollow shielding circle cover 8 is housed in the end endoporus, involucrum 6 in installing in the endoporus of this shielding circle cover 8, the material of this shielding circle cover 8 is a tungsten alloy.
Please refer to Fig. 4, during enforcement, the diameter of bore d of described interior involucrum 6
1Value between 0.8-3.6mm, its outer diameter D
1Value between 5-10mm, its overall height H
1Value between 10-38mm.
Please refer to Fig. 5, during enforcement, the outer diameter D of the lower cylindrical body of described outer envelope 1
2Value between 15-45mm, its height overall H
2Value between 15-60mm.
Claims (4)
1. the high density screening arrangement of a gamma-ray source, comprise that there is the taper type top upper end, there is the outer envelope (1) of the hollow cylinder at the end lower end, in its frustum top center hole enclosing cover (2) is housed, having of outer envelope (1) interior involucrum (6) is housed in the end endoporus, should in the endoporus that the end is arranged of interior involucrum cobalt button (7) be housed, cushion block (5) is equipped with on cobalt button (7) top, inner cap (4) is equipped with on cushion block (5) top, the material of above-mentioned each assembly is rustless steel, it is characterized in that: in the top endoporus of described outer envelope (1), the shielding link stopper (3) of the cylinder of tungsten alloy material is housed between enclosing cover (2) and inner cap (4).
2. the high density screening arrangement of gamma-ray source as claimed in claim 1, it is characterized in that: have in the bottom of described outer envelope (1) a hollow shielding circle cover (8) is housed in the end endoporus, involucrum (6) in installing in the endoporus of this shielding circle cover (8), the material of this shielding circle cover (8) is a tungsten alloy.
3. the high density screening arrangement of gamma-ray source as claimed in claim 1 is characterized in that: the diameter of bore d of involucrum (6) in described
1Value between 0.8-3.6mm, its outer diameter D
1Value between 5-10mm, its overall height H
1Value between 10-38mm.
4. the high density screening arrangement of gamma-ray source as claimed in claim 1 is characterized in that: the outer diameter D of the lower cylindrical body of described outer envelope (1)
2Value between 15-45mm, its height overall H
2Value between 15-60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00254225 CN2440533Y (en) | 2000-09-19 | 2000-09-19 | High density shielding device for gamma ray source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00254225 CN2440533Y (en) | 2000-09-19 | 2000-09-19 | High density shielding device for gamma ray source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2440533Y true CN2440533Y (en) | 2001-08-01 |
Family
ID=33611531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00254225 Expired - Fee Related CN2440533Y (en) | 2000-09-19 | 2000-09-19 | High density shielding device for gamma ray source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2440533Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699725B (en) * | 2004-04-05 | 2011-11-16 | 施卢默格海外有限公司 | Method and apparatus for safely handling radioactive sources |
| CN102398956A (en) * | 2011-09-23 | 2012-04-04 | 河南师范大学 | Open-type high energy photon sewage treatment apparatus |
| CN105788690A (en) * | 2016-05-12 | 2016-07-20 | 梁五 | Multifunctional radioactive source container device |
| CN111710457A (en) * | 2020-06-29 | 2020-09-25 | 北京三强核力辐射工程技术有限公司 | Cobalt-60 radioactive source for whole-body gamma knife radiotherapy and preparation method thereof |
-
2000
- 2000-09-19 CN CN 00254225 patent/CN2440533Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699725B (en) * | 2004-04-05 | 2011-11-16 | 施卢默格海外有限公司 | Method and apparatus for safely handling radioactive sources |
| CN102398956A (en) * | 2011-09-23 | 2012-04-04 | 河南师范大学 | Open-type high energy photon sewage treatment apparatus |
| CN102398956B (en) * | 2011-09-23 | 2013-07-24 | 河南师范大学 | Open-type high energy photon sewage treatment apparatus |
| CN105788690A (en) * | 2016-05-12 | 2016-07-20 | 梁五 | Multifunctional radioactive source container device |
| CN111710457A (en) * | 2020-06-29 | 2020-09-25 | 北京三强核力辐射工程技术有限公司 | Cobalt-60 radioactive source for whole-body gamma knife radiotherapy and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN CITY SHENGAI SCIENCE DEVELOPMENT CO., LTD Free format text: FORMER NAME OR ADDRESS: GUAN AIPING |
|
| CP03 | Change of name, title or address |
Address after: High-tech Business Center No. 518031 Shenzhen city Futian District Songling Road, room 612, Jia Libin Patentee after: Shenzhen Saint love Technology Development Co., Ltd. Address before: 518010 room 5, 302 Dan village, Guangdong, Shenzhen Patentee before: Guan Aiping |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |