CN209490392U - A kind of shadow shield device when changing target for stripping film - Google Patents
A kind of shadow shield device when changing target for stripping film Download PDFInfo
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- CN209490392U CN209490392U CN201821159227.0U CN201821159227U CN209490392U CN 209490392 U CN209490392 U CN 209490392U CN 201821159227 U CN201821159227 U CN 201821159227U CN 209490392 U CN209490392 U CN 209490392U
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Abstract
The utility model relates to proton beam treatment technology, specially a kind of shadow shield device when changing target for stripping film, it is easy to disassemble and mobile and provide necessary protection for staff, the residual radiation dosage being subject to reduction personnel, including tripod pedestal (1), support column one (2), connecting column one (3), connecting column two (4), support column two (5) and connecting column three (6), the tripod pedestal (1) is two and is symmetrical set, each tripod pedestal (1) is equipped with support column one (2), the both ends of connecting column one (3) are connect with the bottom of two support columns one (2) respectively, the both ends of connecting column two (4) are connect with the top of two support columns one (2) respectively, the support column two (5) is two and is respectively provided at the two sides of connecting column two (4), the connecting column three (6 ) both ends connect respectively with the middle part of support column two (5), the support column two (5) be equipped with vertical chute (51).
Description
Technical field
The utility model relates to proton beam treatment technology, specially a kind of shadow shield dress when changing target for stripping film
It sets.
Background technique
Proton therapy is a kind of application prospect extensively and for the apparent novel radiation treatment technology of kinds cancer curative effect, at present in
State is also starting the research and development upsurge to proton therapy.Proton enters human body as positively charged particle, with high speed,
Since its speed is fast, the chance having an effect in vivo with normal tissue or cell is lower, when the privileged site for reaching cancer cell
When, speed gradually decreases and stops, and discharges ceiling capacity, generates the peak Bragg (peak Bo Lage) and kills cancer cell, has simultaneously
Effect protection normal tissue.Since proton therapy has, penetration performance is strong, dosage is distributed, local dose is high, side scatters less, penumbra
The features such as small show biggish superiority particularly with the tumour that treatment has vital tissue organ to wrap.Proton therapy is fitted
Answer disease than wide, for brain innocent and malignant tumour, tumor of spinal cord, cranial vascular disease, head and neck neoplasm, Eye disease, chest and abdomen
Portion's tumour, pediatric tumors and Other diseases etc. have a better effect.External clinical treatment statistics indicate that, proton therapy is to swollen
The effective percentage of tumor reaches 95% or more, and five-year survival rate is up to 80%, and it is best, secondary to be evaluated as curative effect by high-energy physics circle and medical field
Act on least treatment method.
Proton therapy treatment facility is usually made of single bevatron and multiple therapeutic rooms, and cyclotron is raw
At the particle beam for being then selectively guided to one of various therapeutic rooms.The bevatron of accelerating negative hydrogen ion,
Hydrogen is ionized first, becomes electronegative negative hydrogen ion, negative hydrogen ion constantly accelerates in cyclotron, when reaching
When required energy, two electronics of negative hydrogen ion institute band are peeled off by stripping film, proton are become, to realize proton
The extraction of line.During accelerator operation, it will lead to stripping film breakage due to various reasons, need to damaged stripping film
It is replaced.Since stripping film has peeled off two positive electrons of negative hydrogen ion, the motion state of negative hydrogen ion is caused to occur acute
Strong change, the negative hydrogen ion or proton beam of part high-energy lose on the structure member and supporting mechanism of stripping film, cause
Staff's irradiation very large dosage of by residual radiation when replacing stripping film, usual dosage rate are up to 1uSv/h.
Usual shadow shield uses the materials such as concrete block or lead brick, polyethylene, but all there is time-consuming and laborious lack
Point, especially in the case where accelerator operation, a large amount of neutrons that proton loss generates can generate activation to local shielding material,
Increase additional dose of radiation, it is therefore desirable to which shadow shield equipment removes convolution hall in accelerator operation, is changing stripping film
When again by shadow shield place in place.This requires that shadow shield equipment is light and moves, but at present still
There is not screening arrangement when changing target for bevatron stripping film.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide it is a kind of change target for stripping film when
Shadow shield device, easy to disassemble and mobile and provide necessary protection for staff, the remaining spoke being subject to reduction personnel
Penetrate dosage.
To realize above technical purpose, the technical solution of the utility model is: a kind of part when changing target for stripping film
Screening arrangement, including tripod pedestal, support column one, connecting column one, connecting column two, support column two and connecting column three, described three
Corner bracket pedestal is two and to be symmetrical set, and each tripod pedestal is equipped with support column one, the both ends of connecting column one respectively with
The bottom connection of two support columns one, the both ends of connecting column two are connect with the top of two support columns one respectively, the support column
Two are two and are respectively provided at the two sides of connecting column two, and the both ends of the connecting column three are connect with the middle part of support column two respectively,
The support column two is equipped with vertical chute, and the connecting column three is equipped with horizontal concrete chute, is additionally provided on the connecting column three
Hook one, the connecting column two are equipped with hook two, and the bottom of the tripod pedestal is equipped with idler wheel.
Preferably, the both ends of the connecting column three are connect with the middle part of support column two respectively, refer to the two of connecting column three
End respectively with the removable connection in the middle part of support column two；Such design can further adjust the placing height of lead glass to
It is more suitable for the height of staff.
Preferably, the idler wheel and the removable connection of tripod pedestal；Directly idler wheel can be unloaded when without mobile
Under, it is put for standing.
Preferably, the removable connection refers to that support column two is equipped with round, it further include bolt, the bolt passes through
Round is spirally connected with connecting column three；The design can guarantee the connectivity robustness between connecting column three and support column two.
Preferably, the length of the hook two is greater than the length of hook one；The stable in placement of lead enclosing one not only can be with
By hanging on hook one, the support of hook two could also be from.
Preferably, the width of the vertical chute and horizontal concrete chute is 25 millimeters；Thickness can be effectively put at least
For 20 millimeters of lead glass, to guarantee the effect of radiation protection.
Preferably, the spacing of adjacent supports column two is not more than 30 centimetres.
Preferably, the length of the connecting column two is not less than 60 centimetres.
Preferably, the tripod pedestal, support column one, connecting column one, connecting column two, support column two and connecting column three
It is made of aluminum alloy hollow pipe.
Preferably, further include rubber stopper, the one removable connection of the rubber stopper and hook.
The high-precision energy slit for Proton therapy system of the utility model has the advantage that the utility model
Shadow shield installation weight when changing target for stripping film it is light, structure is simple, cost is relatively low；Lead enclosing can pass through hook
One, two directly stable installations are linked up with, lead glass can slide into stabilization in support column two by sliding slot and put, entire shadow shield
Device steadily of centre of gravity, conveniently moving and shield effectiveness are good, and operator is easy to operate when changing target to stripping film.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of shadow shield device when changing target for stripping film of the utility model.
Fig. 2 is the partial enlargement diagram of part A in Fig. 1.
Fig. 3 is the main view of shadow shield device when changing target for stripping film of the utility model.
Fig. 4 is the side view of shadow shield device when changing target for stripping film of the utility model.
Fig. 5 is the use state diagram of shadow shield device when changing target for stripping film of the utility model.
Fig. 6 is the partial enlargement diagram of part B in Fig. 5.
Appended drawing reference: 1, tripod pedestal, 2, support column one, 3, connecting column one, 4, connecting column two, 41, hook two, 5,
Support column two, 51, vertical chute, 52, round, 6, connecting column three, 61, horizontal concrete chute, 62, hook one, 7, idler wheel, 8, bolt,
9, lead glass, 10, lead enclosing one, 11, lead enclosing two, 12, rubber stopper.
Specific embodiment
The utility model as it is a kind of change for stripping film target when shadow shield device requirement structure is simple, component dismounting
Convenient and occupied area is little, own wt is lighter；So being directed to this problem, specifically has developed one kind and changed for stripping film
Shadow shield device when target, as shown in Fig. 1,2,3 and 5, including tripod pedestal 1, support column 1, connecting column 1, connection
Column 24, support column 25 and connecting column 36, the tripod pedestal 1 are two and are symmetrical set, each tripod pedestal
1 is equipped with support column 1, and the both ends of connecting column 1 are connect with the bottom of two support columns 1 for keeping triangle respectively
The stability of frame pedestal 1 when moving, the both ends of connecting column 24 are connect with the top of two support columns 1 respectively, the branch
Dagger 25 is two and is respectively provided at the two sides of connecting column 24, the both ends of the connecting column 36 respectively with support column 25
Middle part connection, the support column 25 are equipped with vertical chute 51, and the connecting column 36 is equipped with horizontal concrete chute 61, described
The width of vertical chute 51 and horizontal concrete chute 61 is 25 millimeters, is used to support the lead glass 9 that inserting thickness is 20mm, it
It is to carry out visual operation for the ease of staff so being arranged to lead glass shielding above shadow shield device, due to
Element in aluminium alloy can generate a series of gamma-ray emitter by the neutron activation that proton generates, so tripod pedestal
1, support column 1, connecting column 1, connecting column 24, support column 25 and connecting column 36 are made of aluminum alloy hollow pipe, with
The residual radiation that activation generates is reduced as far as possible.Since the residual radiation of stripping film is mainly penetrated by the gamma that energy is not more than 2MeV
Line is constituted, therefore the lead glass of 20mm can effectively reduce the dose of radiation after lead glass, furthermore in view of lead glass is close
Spend it is larger, for the ease of staff's Fast Installation, it is necessary to which the volume of stringent limitation lead glass, the thickness of lead glass are fixed as
20mm, width should be limited within 30cm, and height limitation is within 40cm, so the spacing of adjacent supports column 25 is not more than
30 centimetres, the length of the hook 2 41 is greater than the length of hook 1, and the length of the connecting column 24 is not less than 60 centimetres,
In this way can the head to staff effectively shielded and reduced as far as possible the quality of lead glass.It is close according to lead glass
Degree is that 3.4g/cm3 is calculated, and quality about 8Kg or so is carried convenient for staff.
As shown in Fig. 3, hook 1 is additionally provided on the connecting column 36, the connecting column 24 is equipped with hook two
41, the hook 1 and hook 2 41 are distributed in a row, and the hook 1 is mainly used to hang protected working personnel
The lead enclosing 1 of trunk.This row hook 1 is mainly used to hang the lead enclosing of protected working personnel trunk.Usual situation
For, the staff of general height, metastomium is just suitable with the height of stripping film mechanism, is in residual radiation dosage
Strongest position, it is therefore desirable to carry out necessary protection.When staff's progress stripping film changes target operation, staff
It stands at the rear of shadow shield, both hands are visually operated, therefore to trunk in shape is encircled around shadow shield by lead glass
One 10 width of the lead enclosing needs that position is protected strictly are limited, in order to avoid the personnel's operation that hinders one's work.Link up with 1
Width design be 35cm, can the trunk to operator effectively protected and influenced the operation of staff.
It needs to be in encircle shape to bypass to local shielding device due to staff, it is therefore necessary to consider safety problem, therefore such as Fig. 6 institute
Show, the design of one 62 ends of hook is necessary for round end, and installs rubber stopper.
The hook 2 41 is mainly used to hang wider lead enclosing 2 11, with lower abdomen to staff and following
Position is protected, and hook 2 41 is located at the 2cm of one 10 lower edge of lead enclosing, can hang the lead enclosing that length is more than 60cm.For
It is rapidly assembled and disassembled shadow shield convenient for staff, does not redesign other hooks, therefore foot areas is without anti-
Shield, it is easy to remove to guarantee that the bottom of the tripod pedestal 1 is equipped with idler wheel 7.
The both ends of the connecting column 36 are connect with the middle part of support column 25 respectively, refer to the both ends point of connecting column 36
Not with the removable connection in the middle part of support column 25, it is described it is removable connection refer to support column 25 be equipped with round 52, further include
Bolt 8, the bolt 8 passes through round 52 and is spirally connected with connecting column 36, consequently facilitating needing to select according to practical operation personnel
It selects the longer lead glass of length and then improves field range.
The tripod pedestal 1, support column 1, connecting column 1, connecting column 24, support column 25 and connecting column 36 are equal
It is made of aluminum alloy hollow pipe, can not only reduce amount of radiation can also guarantee when lead glass is inserted into the vertical of support column 25
After sliding slot 51, steadily of centre of gravity is kept, even if lead enclosing 1 is hung on hook 1, lead enclosing 2 11 hangs over connecting column 36
It is also ensured that entire shadow shield device, is not in the phenomenon that toppling over.
It is enlightenment, through the above description, relevant staff with the above-mentioned desirable embodiment according to utility model
Various changes and amendments can be carried out in the range of without departing from this item utility model technical idea completely, this item is practical
Novel technical scope is not limited to the contents of the specification, it is necessary to determine that its is technical according to scope of the claims
Range.
Claims (10)
1. a kind of shadow shield device when changing target for stripping film, it is characterised in that: including tripod pedestal (1), support column
One (2), connecting column one (3), connecting column two (4), support column two (5) and connecting column three (6), the tripod pedestal (1) are two
A and be symmetrical set, each tripod pedestal (1) is equipped with support column one (2), the both ends of connecting column one (3) respectively with two
The bottom of support column one (2) connects, and the both ends of connecting column two (4) are connect with the top of two support columns one (2) respectively, the branch
Dagger two (5) is two and is respectively provided at the two sides of connecting column two (4), the both ends of the connecting column three (6) respectively with support column
The middle part of two (5) connects, and the support column two (5) is equipped with vertical chute (51), and the connecting column three (6) is equipped with level
Sliding slot (61), hook one (62) is additionally provided on the connecting column three (6), and the connecting column two (4) is equipped with two (41) of hook, institute
The bottom for stating tripod pedestal (1) is equipped with idler wheel (7).
2. the shadow shield device according to claim 1 being used for when stripping film changes target, it is characterised in that: the connecting column
The both ends of three (6) are connect with the middle part of support column two (5) respectively, refer to the both ends of connecting column three (6) respectively with support column two (5)
The removable connection in middle part.
3. the shadow shield device according to claim 1 being used for when stripping film changes target, it is characterised in that: the idler wheel
(7) with tripod pedestal (1) removable connection.
4. the shadow shield device according to claim 2 being used for when stripping film changes target, it is characterised in that: described removable
Connection refer to support column two (5) be equipped with round (52), further include bolt (8), the bolt (8) pass through round (52) with connect
Column three (6) is spirally connected.
5. the shadow shield device according to claim 1 being used for when stripping film changes target, it is characterised in that: the hook two
(41) length is greater than the length of one (62) of hook.
6. the shadow shield device according to claim 1 being used for when stripping film changes target, it is characterised in that: the vertical cunning
The width of slot (51) and horizontal concrete chute (61) is 25 millimeters.
7. the shadow shield device according to claim 1 being used for when stripping film changes target, it is characterised in that: adjacent supports column
The spacing of two (5) is not more than 30 centimetres.
8. the shadow shield device according to claim 1 being used for when stripping film changes target, it is characterised in that: the connecting column
The length of two (4) is not less than 60 centimetres.
9. the shadow shield device according to claim 1 being used for when stripping film changes target, it is characterised in that: the tripod
Pedestal (1), support column one (2), connecting column one (3), connecting column two (4), support column two (5) and connecting column three (6) are closed by aluminium
Golden hollow pipe is made.
10. the shadow shield device according to claim 1 being used for when stripping film changes target, it is characterised in that: further include rubber
Rubber plug (12), the rubber stopper (12) and the hook removable connection in one (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821159227.0U CN209490392U (en) | 2018-07-21 | 2018-07-21 | A kind of shadow shield device when changing target for stripping film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821159227.0U CN209490392U (en) | 2018-07-21 | 2018-07-21 | A kind of shadow shield device when changing target for stripping film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209490392U true CN209490392U (en) | 2019-10-15 |
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ID=68150562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821159227.0U Active CN209490392U (en) | 2018-07-21 | 2018-07-21 | A kind of shadow shield device when changing target for stripping film |
Country Status (1)
| Country | Link |
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| CN (1) | CN209490392U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732092A (en) * | 2018-07-21 | 2020-01-31 | 中国原子能科学研究院 | local shielding device for target changing of stripping film |
| CN110753438A (en) * | 2019-11-02 | 2020-02-04 | 中国原子能科学研究院 | Beam line magnet shielding device and shielding method |
-
2018
- 2018-07-21 CN CN201821159227.0U patent/CN209490392U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732092A (en) * | 2018-07-21 | 2020-01-31 | 中国原子能科学研究院 | local shielding device for target changing of stripping film |
| CN110753438A (en) * | 2019-11-02 | 2020-02-04 | 中国原子能科学研究院 | Beam line magnet shielding device and shielding method |
| CN110753438B (en) * | 2019-11-02 | 2020-11-10 | 中国原子能科学研究院 | Beam line magnet shielding device and shielding method |
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