CN107249248A - A kind of superconducting cyclotron liquid helium vessel - Google Patents
A kind of superconducting cyclotron liquid helium vessel Download PDFInfo
- Publication number
- CN107249248A CN107249248A CN201710610875.7A CN201710610875A CN107249248A CN 107249248 A CN107249248 A CN 107249248A CN 201710610875 A CN201710610875 A CN 201710610875A CN 107249248 A CN107249248 A CN 107249248A
- Authority
- CN
- China
- Prior art keywords
- liquid helium
- passage
- vessel
- helium vessel
- superconducting cyclotron
- 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.)
- Pending
Links
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 79
- 239000001307 helium Substances 0.000 title claims abstract description 79
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 239000007788 liquid Substances 0.000 title claims abstract description 64
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- JPUIZWPARZBKPB-UHFFFAOYSA-N [Pb].[He] Chemical compound [Pb].[He] JPUIZWPARZBKPB-UHFFFAOYSA-N 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 238000002661 proton therapy Methods 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000035800 maturation Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 230000019643 circumnutation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 238000001959 radiotherapy Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H13/00—Magnetic resonance accelerators; Cyclotrons
- H05H13/005—Cyclotrons
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Particle Accelerators (AREA)
Abstract
The invention belongs to superconducting cyclotron field.For solve not having in China medical proton therapy accelerator development the liquid helium vessel of maturation can utilize, with reference to the problem of, the invention provides a kind of superconducting cyclotron liquid helium vessel.The liquid helium vessel uses circular ring structure, including running through first annular liquid helium passage and the second toroidal helium passage inside the circular ring structure ring, hole link is used between the first annular liquid helium passage and the second toroidal helium passage, the first annular liquid helium passage is provided with opening.A kind of superconducting cyclotron liquid helium vessel of successful design of the present invention, it can effectively solve the problem that the cooling problem of superconducting coil.The liquid helium vessel actually has two kinds of functions of liquid helium vessel and superconducting coil skeleton concurrently, with compact conformation, small volume, and reliability is high, the advantages of using facilitating, and is that the successful development of the medical proton therapy accelerator of China is laid a good foundation.
Description
Technical field
The invention belongs to superconducting cyclotron field, more particularly to a kind of superconducting cyclotron liquid helium vessel.
Background technology
Cyclotron is a kind of particle accelerator, and it returns charged particle using magnetic field and the collective effect of electric field
Rotation motion, and the device accelerated repeatedly to the charged particle of circumnutation with high-frequency electric field.Wherein, superconducting cyclotron
It is the nucleus equipment of current medical proton therapy accelerator.
Medical proton therapy accelerator is the most advanced radiotherapy equipment in the world today, and it can utilize microcosmic matter
Son, Heavy ion beam treatment tumour, it is evident in efficacy, it is only individual at present with good development prospect and huge commercial value
Other developed country grasps and applies the technology；And China is in the development stage, mature technology there is no to be available for use.But for
Consider in terms of commercial interest, many key technologies about medical proton therapy accelerator are not disclosed so far so that China
Development work need to break through relevant key technology one by one and can just be accomplished, and superconducting cyclotron is held with liquid helium
Device is one of them.
The magnetic field of superconducting cyclotron is mainly provided by superconducting coil, and superconducting coil, which enters superconducting state, needs necessarily low
Warm condition, if being unsatisfactory for the cryogenic conditions of superconducting coil, superconducting coil will be quenched, and influence making for superconducting cyclotron
With, when serious even can occur superconducting coil burnout failure.
To solve this problem, generally it is contemplated that forming this cryogenic conditions using liquid helium, this requires design one
Liquid helium vessel is planted to accommodate liquid helium.But, it can be utilized, with reference in the case of in no prior art, what liquid helium vessel uses
Kind of design structure just can guarantee that the cooling effect of superconducting coil, and also want can be good with the other structures of superconducting cyclotron
Good compatibility, this turns into the problem of must being solved in medical proton therapy accelerator development process.
The content of the invention
To solve there is no the liquid helium vessel of maturation to utilize in China medical proton therapy accelerator development, asking of referring to
Topic, the invention provides a kind of superconducting cyclotron liquid helium vessel.
The liquid helium vessel uses circular ring structure, including runs through the first annular liquid helium inside the circular ring structure ring
Passage and the second toroidal helium passage, are connected between the first annular liquid helium passage and the second toroidal helium passage using duct
Logical, the first annular liquid helium passage is provided with opening.
The first annular liquid helium passage and the second toroidal helium passage use split-type design to be preferred, with convenient super
Loop is inserted, and is tightly connected between split-type structural each several part.
The split-type design is that annular groove and the split type of endless belt are combined as preferably, and between annular groove and endless belt
It is tightly connected.
The notch direction of the annular groove is towards being preferred outside the circular ring structure.
Being tightly connected between the annular groove and endless belt is preferably welded.
The material of the liquid helium vessel is preferably stainless steel.
Also leave the annulus in non-hollow part between the first annular liquid helium passage and the second toroidal helium passage
The radial passage of structure radially is preferred, in order to passing through for relevant accelerator structure.
The liquid helium vessel of the present invention employs the design of two toroidal helium passages, passed through on the basis of circular ring structure
The opening set on first annular liquid helium passage introduces liquid helium, and superconducting coil is immersed in liquid helium, realizes liquid helium cooling
Function, good cooling results.At the same time, two toroidal helium channel interiors also have the function of accommodating superconducting coil so that this
Invention liquid helium vessel has the effect of superconducting coil skeleton concurrently.Because the liquid helium vessel of the present invention has above two function concurrently, therefore
The advantages of it has compact conformation, small volume.In addition, the opening or superconducting coil and temperature that are set on first annular liquid helium passage
Spend the passage of sensor lead-out wire.
In summary, a kind of superconducting cyclotron liquid helium vessel of successful design of the present invention, it can effectively solve the problem that super
The cooling problem of loop.The liquid helium vessel actually has two kinds of functions of liquid helium vessel and superconducting coil skeleton concurrently, with structure
Compact, small volume, reliability is high, the advantages of using facilitating, and is that the successful development of the medical proton therapy accelerator of China is established
Basis.
Brief description of the drawings
The superconducting cyclotron liquid helium vessel schematic diagram of Fig. 1 present invention.
The superconducting cyclotron liquid helium vessel circular ring structure sectional view of Fig. 2 present invention (at opening).
Reference：1. first annular liquid helium passage, 2. second toroidal helium passages, 3. ducts, 4. openings, 5. is radially logical
Road.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
Embodiment
As shown in accompanying drawing 1-2, superconducting cyclotron of the invention is circular ring structure with liquid helium vessel, can use stainless steel
Material, its first annular inside of 1 and second toroidal helium passage of liquid helium passage 2 respectively accommodates one group of superconducting coil.First annular liquid
Opening 4 on helium passage 1 is used to the inside of liquid helium vessel introduce liquid helium, and the first annular toroidal helium of liquid helium passage 1 and second leads to
Connected between road 2 using duct 3, so that liquid helium enters the second toroidal helium passage 2, common shape by first annular liquid helium passage 1
Into 4.2K low-temperature pressure containers, it is ensured that the operating temperature of superconducting coil；The opening 4 is used as superconducting coil and temperature sensor simultaneously
Draw line passage.
In the development process that above-mentioned liquid helium vessel is applied to certain superconducting cyclotron.Before concrete application, first to it
Carry out vacuum leak hunting, it is desirable to which leak rate is less than 1 × 10-10PaL/s, to meet vacuum requirement.Pass through the reality of superconducting cyclotron
Border Operation trial, it was demonstrated that the liquid helium vessel can effectively solve the problem that the cooling problem of superconducting coil, have the advantages that convenient and reliable.
Claims (7)
1. a kind of superconducting cyclotron liquid helium vessel, it is characterised in that：The liquid helium vessel uses circular ring structure, including equal insertion
First annular liquid helium passage and the second toroidal helium passage inside the circular ring structure ring, the first annular liquid helium lead to
Hole link is used between road and the second toroidal helium passage, the first annular liquid helium passage is provided with opening.
2. superconducting cyclotron liquid helium vessel as claimed in claim 1, it is characterised in that：The first annular liquid helium passage
Use and be tightly connected between split-type design, and split-type structural each several part with the second toroidal helium passage.
3. superconducting cyclotron liquid helium vessel as claimed in claim 2, it is characterised in that：The split-type design is annular
Groove and the split type combination of endless belt, and be tightly connected between annular groove and endless belt.
4. superconducting cyclotron liquid helium vessel as claimed in claim 3, it is characterised in that：The notch direction of the annular groove
Towards outside the circular ring structure.
5. superconducting cyclotron liquid helium vessel as claimed in claim 3, it is characterised in that：The annular groove and endless belt it
Between be tightly connected for welding.
6. the superconducting cyclotron liquid helium vessel as described in claim any one of 1-5, it is characterised in that：The liquid helium vessel
Material be stainless steel.
7. the superconducting cyclotron liquid helium vessel as described in claim any one of 1-5, it is characterised in that：It is described first annular
Also leave the radial passage of the circular ring structure radially in non-hollow part between liquid helium passage and the second toroidal helium passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610875.7A CN107249248A (en) | 2017-07-25 | 2017-07-25 | A kind of superconducting cyclotron liquid helium vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610875.7A CN107249248A (en) | 2017-07-25 | 2017-07-25 | A kind of superconducting cyclotron liquid helium vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107249248A true CN107249248A (en) | 2017-10-13 |
Family
ID=60012345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710610875.7A Pending CN107249248A (en) | 2017-07-25 | 2017-07-25 | A kind of superconducting cyclotron liquid helium vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107249248A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117956674A (en) * | 2024-03-26 | 2024-04-30 | 合肥中科离子医学技术装备有限公司 | Magnet system and cyclotron with same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4641057A (en) * | 1985-01-23 | 1987-02-03 | Board Of Trustees Operating Michigan State University | Superconducting synchrocyclotron |
| US4641104A (en) * | 1984-04-26 | 1987-02-03 | Board Of Trustees Operating Michigan State University | Superconducting medical cyclotron |
| CN102308676A (en) * | 2009-02-09 | 2012-01-04 | 特斯拉工程有限公司 | Cooling systems and methods |
| CN103766006A (en) * | 2011-07-07 | 2014-04-30 | 艾昂耐提柯斯有限公司 | Compact, cold, superconducting isochronous cyclotron |
| US8791656B1 (en) * | 2013-05-31 | 2014-07-29 | Mevion Medical Systems, Inc. | Active return system |
| CN106231778A (en) * | 2016-08-31 | 2016-12-14 | 安徽思讯医疗科技有限公司 | The radioisotopic superconducting cyclotron of a kind of production |
| CN207099419U (en) * | 2017-07-25 | 2018-03-13 | 中国原子能科学研究院 | A kind of superconducting cyclotron liquid helium vessel |
-
2017
- 2017-07-25 CN CN201710610875.7A patent/CN107249248A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4641104A (en) * | 1984-04-26 | 1987-02-03 | Board Of Trustees Operating Michigan State University | Superconducting medical cyclotron |
| US4641057A (en) * | 1985-01-23 | 1987-02-03 | Board Of Trustees Operating Michigan State University | Superconducting synchrocyclotron |
| CN102308676A (en) * | 2009-02-09 | 2012-01-04 | 特斯拉工程有限公司 | Cooling systems and methods |
| CN103766006A (en) * | 2011-07-07 | 2014-04-30 | 艾昂耐提柯斯有限公司 | Compact, cold, superconducting isochronous cyclotron |
| US8791656B1 (en) * | 2013-05-31 | 2014-07-29 | Mevion Medical Systems, Inc. | Active return system |
| CN104219866A (en) * | 2013-05-31 | 2014-12-17 | 梅维昂医疗系统股份有限公司 | Active return system |
| CN106231778A (en) * | 2016-08-31 | 2016-12-14 | 安徽思讯医疗科技有限公司 | The radioisotopic superconducting cyclotron of a kind of production |
| CN207099419U (en) * | 2017-07-25 | 2018-03-13 | 中国原子能科学研究院 | A kind of superconducting cyclotron liquid helium vessel |
Non-Patent Citations (1)
| Title |
|---|
| 中国原子能科学研究院, 中国原子能出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117956674A (en) * | 2024-03-26 | 2024-04-30 | 合肥中科离子医学技术装备有限公司 | Magnet system and cyclotron with same |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171013 |