CN106163071B - The suspension and method of a kind of adjustment superconducting cyclotron magnetic field first harmonic - Google Patents
The suspension and method of a kind of adjustment superconducting cyclotron magnetic field first harmonic Download PDFInfo
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- CN106163071B CN106163071B CN201610614246.7A CN201610614246A CN106163071B CN 106163071 B CN106163071 B CN 106163071B CN 201610614246 A CN201610614246 A CN 201610614246A CN 106163071 B CN106163071 B CN 106163071B
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- 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
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- 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
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Abstract
The invention belongs to superconducting cyclotron technical fields, and in particular to the suspension and method of a kind of adjustment superconducting cyclotron magnetic field first harmonic.Suspension therein is used to adjust the first harmonic in the magnetic field of superconducting coil, it is arranged on the cryostat of the annular of superconducting cyclotron, superconducting coil is arranged in cryostat, wherein, including several upper connecting rods in cryostat upper surface are arranged, several lower pull rods in cryostat lower face are set, several drag links in cryostat side are set, by adjusting upper connecting rod, lower pull rod, the pulling force of drag link can realize that the position of superconducting coil is adjusted, position adjusting includes the adjusting to the directions Bz and the directions Br of superconducting coil, the directions Bz refer to the axial direction of cryostat, the directions Br refer to the radial direction of cryostat.The structure of suspension provided by the present invention is simple, while meeting easy to operate, cheap advantage.
Description
Technical field
The invention belongs to superconducting cyclotron technical fields, and in particular to a kind of adjustment superconducting cyclotron magnetic field one
The suspension and method of subharmonic.
Background technology
Cyclotron is so that charged particle is made circumnutation jointly using magnetic field and electric field, during exercise through high-frequency electric field
The device accelerated repeatedly is the important instrument in high-energy physics, and wherein superconducting cyclotron is that current medical proton therapeutic adds
The core equipment of fast device.Medical proton therapy accelerator can be realized swollen with the proton in microcosmos, Heavy ion beam treatment
Tumor, is the most advanced radiation therapy technology in the world today, and only individual developed countries grasp and apply the technology.The country has been opened up
Open but temporarily have not been completed the development work of superconducting cyclotron.
The magnetic field of superconducting cyclotron is mainly provided by room temperature main magnet and superconducting coil, and superconducting coil machines
Afterwards, the first harmonic magnetic field performance for needing Analysis of Superconducting coil hangs superconducting line during superconducting coil surveys magnetic by adjusting
The suspension of circle can adjust the directions superconducting line circle body Br, the directions Bz first harmonic magnetic field to meet design requirement.Room temperature master
It after magnet is integrally assembled with superconducting coil, needs to readjust suspension according to magnetic knot fruit is surveyed, finally needs to meet superconduction time
Revolve the design requirement in the directions accelerator magnetic field Br, the directions Bz first harmonic magnetic field.Existing room temperature cyclotron magnetic field is primary
The adjustment mode of harmonic wave and superconducting cyclotron are entirely different, it is impossible to be used in the tune of the first harmonic of superconducting cyclotron
It is whole.
Invention content
For the adjustment of the first harmonic of superconducting cyclotron, the object of the present invention is to provide a kind of suspension, energy
The adjustment for enough meeting the first harmonic of superconducting cyclotron can adjust the superconducting line circle body side Br by adjusting suspension
To, the directions Bz first harmonic magnetic field.
To achieve the above objectives, the technical solution adopted by the present invention is that a kind of adjustment superconducting cyclotron magnetic field is once humorous
The suspension of wave, the first harmonic in the magnetic field for adjusting superconducting coil, be arranged superconducting cyclotron annular it is low
On warm thermostat, the superconducting coil is arranged in the cryostat, wherein including being arranged on the cryostat
Several lower pull rods in the cryostat lower face are arranged in several upper connecting rods of end face, and setting is in low temperature perseverance
Several drag links of warm device side, the pulling force by adjusting the upper connecting rod, lower pull rod, drag link can realize the superconduction
The position of coil is adjusted, and the position adjusting includes the adjusting to the directions Bz and the directions Br of the superconducting coil, the side Bz
To the axial direction for referring to the cryostat, the directions Br refer to the radial direction of the cryostat.
Further, the upper connecting rod is 4, is uniformly set on the upper surface of the cryostat, under described
Pull rod is 4, is uniformly set on the lower face of the cryostat, the upper connecting rod and the lower pull rod are right one by one
It answers and coaxially.
Further, the drag link is 4, is uniformly arranged on the side of the cryostat, along low temperature perseverance
The radial direction of warm device is corresponding and coaxial two-by-two.
Further, the upper connecting rod, lower pull rod, drag link top are provided with adjusting nut, and the adjusting nut can be adjusted
Save the pulling force of the upper connecting rod, lower pull rod, drag link.
Further, each 60 degree of self-reversal adjusting of the adjusting nut of the one-to-one upper connecting rod, lower pull rod, it is described
Cryostat can move 0.33mm on the direction where the one-to-one upper connecting rod, lower pull rod；
Each self-reversal of the adjusting nut of the corresponding drag link adjusts 60 degree two-by-two, and the cryostat can
The mobile 0.33mm on the direction where the corresponding drag link two-by-two.
Further, the upper connecting rod, lower pull rod, drag link top are provided with dynamometer, and the dynamometer can be shown
The adjusting nut adjusts the pulling force of the upper connecting rod, lower pull rod, drag link.
To achieve the above objectives, the invention also discloses a kind of sides of adjustment superconducting cyclotron magnetic field first harmonic
Method includes the following steps：
Step (S1) makes each 60 degree of self-reversal adjusting of the adjusting nut of corresponding a pair upper connecting rod, lower pull rod,
The cryostat can move 0.33mm on the direction where the corresponding upper connecting rod, lower pull rod；
Step (S2), observe the corresponding upper connecting rod, lower pull rod the dynamometer reading, if the reading is big
In the upper connecting rod, the ultimate tension of lower pull rod, each self-reversal is answered to adjust the adjusting nut of the upper connecting rod, lower pull rod,
The reading is set to be reduced in weight range allowable；
Step (S3) makes each 60 degree of self-reversal adjusting of the adjusting nut of corresponding a pair drag link, described low
Warm thermostat can move 0.33mm on the direction where the corresponding drag link；
Step (S4) observes the reading of the dynamometer of corresponding two drag links, if the reading is more than
The ultimate tension of the drag link answers each self-reversal to adjust the adjusting nut of the drag link, and the reading is made to be reduced to
In weight range allowable；
Step (S5), according to magnetic data, according to step (S1), (S2), (S3), (S4) repetitive operation, or according to step
Suddenly (S3), (S4), (S1), (S2) repetitive operation complete the suspension in the primary of the directions Bz and the directions Br
Harmonic wave adjusts work.
The beneficial effects of the present invention are：
The tune in the directions various combination application realization Br of more different directions upper connecting rods, the first harmonic magnetic field in the directions Bz
It is whole.Each pull rod stress is detected to prevent pullup acceleration, adjusting yoke end cap to can be adjusted superconduction using dynamometer on pull rod
Magnet positions, so as to adjust the first harmonic in superconducting cyclotron magnetic field.The above regulative mode simplifies the knot of suspension
Structure, while meeting the features such as easy to operate, cheap.
Description of the drawings
Fig. 1 is the schematic diagram for the cryostat that the suspension arrangement is equipped in the specific embodiment of the invention；
Fig. 2 is the signal of the adjusting nut and the dynamometer of pull rod end described in the specific embodiment of the invention
Figure；
In figure：1- cryostats, 2- upper connecting rods, 3- drag links, pull rod under 4-, 5- dynamometers, 6- adjusting nuts.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of suspension of adjustment superconducting cyclotron magnetic field first harmonic provided by the invention, is used
First harmonic in the magnetic field of adjustment superconducting coil is arranged on the cryostat 1 of the annular of superconducting cyclotron, superconduction
Coil is arranged in cryostat 1, wherein including several upper connecting rods 2 in 1 upper surface of cryostat are arranged, is arranged
Several lower pull rods 4 in 1 lower face of cryostat are arranged several drag links 3 in 1 side of cryostat, pass through
Adjustment upper connecting rod 2, lower pull rod 4, drag link 3 pulling force can realize that the position of superconducting coil is adjusted, it includes to super that position, which is adjusted,
The adjusting in the directions Bz and the directions Br of loop, the directions Bz refer to the axial direction of cryostat 1, and the directions Br refer to cryostat
1 radial direction.
Upper connecting rod 2 is 4, is uniformly set on the upper surface of cryostat 1, and lower pull rod 4 is 4, is uniformly divided
Cloth is arranged on the lower face of cryostat 1, and upper connecting rod 2 corresponds and coaxial with lower pull rod 4.Drag link 3 is 4,
Even to be arranged on the side of cryostat 1, the radial direction along cryostat 1 is corresponding and coaxial two-by-two.Every group of upper connecting rod 2, cross
Pull rod 3, lower pull rod 4 are 90 degree of superconducting coil circumferential direction angle position interval.
As shown in Fig. 2, upper connecting rod 2, lower pull rod 4,3 top of drag link are provided with adjusting nut 6, adjusting nut 6 can be adjusted
Save the pulling force of upper connecting rod 2, lower pull rod 4, drag link 3.In the present embodiment, adjusting nut 6 uses M16X2 hex nuts.
60 degree of 6 each self-reversal of adjusting nut adjusting of one-to-one upper connecting rod 2, lower pull rod 4, cryostat 1 can
The mobile 0.33mm on the direction where one-to-one upper connecting rod 2, lower pull rod 4；
6 each self-reversal of adjusting nut of corresponding drag link 3 adjusts 60 degree two-by-two, and cryostat 1 can be right two-by-two
Mobile 0.33mm on direction where the drag link 3 answered.
Upper connecting rod 2, lower pull rod 4,3 top of drag link are provided with dynamometer 5, and dynamometer 5 being capable of the adjusting of vision-control nut 6
The pulling force of upper connecting rod 2, lower pull rod 4, drag link 3.
In order to realize superconducting cyclotron magnetic field first harmonic, the present invention also provides a kind of acceleration of adjustment superconducting cyclotron
The method of device magnetic field first harmonic, principle are changed by axial suspended portion (upper connecting rod 2, lower pull rod 4) according to survey magnetic data
Become superconducting coil position so as to adjust the first harmonic magnetic field in the directions superconducting coil Bz, and according to magnetic data is surveyed, passes through radial direction
Suspended portion (drag link 3) changes superconducting coil position so as to adjust the first harmonic magnetic field in the directions superconducting coil Br.By right
The adjustment of axial suspended portion, radial suspended portion, makes the directions Bz, the first harmonic magnetic field in the directions Br meets Magnetic Field Design and wants
It asks.Specifically comprise the following steps：
Step S1 makes 6 each self-reversal of adjusting nut of corresponding a pair of of upper connecting rod 2, lower pull rod 4 adjust 60 degree, and low temperature is permanent
Warm device can move 0.33mm on the direction where corresponding upper connecting rod 2, lower pull rod 4；
Step S2, observe corresponding upper connecting rod 2, lower pull rod 4 dynamometer 5 reading, if reading more than upper connecting rod 2,
The ultimate tension of lower pull rod 4 answers each self-reversal to adjust the adjusting nut 6 of upper connecting rod 2, lower pull rod 4, reading is made to be reduced to drawing allowable
Within the scope of power；
Step S3 makes 6 each self-reversal of adjusting nut of corresponding a pair of of drag link 3 adjust 60 degree, and cryostat can
The mobile 0.33mm on the direction where corresponding drag link 3；
Step S4 observes the reading of the dynamometer 5 of corresponding two drag links 3, if reading is more than the limit of drag link 3
Pulling force answers each self-reversal to adjust the adjusting nut 6 of drag link 3, reading is made to be reduced in weight range allowable；
Step S5, according to magnetic data, according to step S1, S2, S3, S4 repetitive operation, or according to step S3, S4, S1,
S2 repetitive operations complete suspension and adjust work in the first harmonic in the directions Bz and the directions Br.(i.e. suspension Bz directions
The first harmonic adjustment work that first harmonic adjusts work and the directions Br should alternately, i.e., in direction suspension Bz
Need to carry out after the completion of first harmonic adjustment work Br directions first harmonic adjustment work or direction suspension Br
The first harmonic for carrying out the directions Bz is needed to adjust work after the completion of first harmonic adjustment work.)
Device of the present invention is not limited to the embodiment described in specific implementation mode, those skilled in the art according to
Technical scheme of the present invention obtains other embodiments, also belongs to the scope of the technical innovation of the present invention.
Claims (3)
1. a kind of suspension of adjustment superconducting cyclotron magnetic field first harmonic, one of magnetic field for adjusting superconducting coil
Subharmonic is arranged on the cryostat (1) of the annular of superconducting cyclotron, and the superconducting coil is arranged in the low temperature
In thermostat (1), it is characterized in that：Including several upper connecting rods (2) in the cryostat (1) upper surface, setting is arranged
Several lower pull rods (4) in the cryostat (1) lower face are arranged in the several of the cryostat (1) side
Root drag link (3), the pulling force by adjusting the upper connecting rod (2), lower pull rod (4), drag link (3) can realize the superconducting line
The position of circle is adjusted, and the position adjusting includes the adjusting to the directions Bz and the directions Br of the superconducting coil, the directions Bz
Refer to the axial direction of the cryostat (1), the directions Br refer to the radial direction of the cryostat (1)；
The upper connecting rod (2) is 4, is uniformly set on the upper surface of the cryostat (1), the lower pull rod
(4) it is 4, is uniformly set on the lower face of the cryostat (1), the upper connecting rod (2) and the lower pull rod
(4) it corresponds and coaxial；
The drag link (3) is 4, is uniformly arranged on the side of the cryostat (1), along the cryostat
(1) radial direction is corresponding and coaxial two-by-two；
The upper connecting rod (2), lower pull rod (4), drag link (3) top are provided with adjusting nut (6), adjusting nut (6) energy
Enough adjust the pulling force of the upper connecting rod (2), lower pull rod (4), drag link (3)；
Each 60 degree of self-reversal adjusting of the adjusting nut (6) of the one-to-one upper connecting rod (2), lower pull rod (4), it is described low
Warm thermostat (1) can move 0.33mm on the direction where the one-to-one upper connecting rod (2), lower pull rod (4)；
Each self-reversal of the adjusting nut (6) of the corresponding drag link (3) adjusts 60 degree two-by-two, the cryostat
(1) 0.33mm can be moved on the direction where the corresponding drag link (3) two-by-two.
2. suspension as described in claim 1, it is characterized in that：The upper connecting rod (2), lower pull rod (4), drag link (3) top
End is provided with dynamometer (5), and the dynamometer (5) can show that the adjusting nut (6) adjusts the upper connecting rod (2), drop-down
The pulling force of bar (4), drag link (3).
3. a kind of once humorous using the adjustment superconducting cyclotron magnetic field of claim 1 to 2 any one of them suspension
The method of wave, includes the following steps：
Step S1 makes each 60 degree of self-reversal adjusting of the adjusting nut of corresponding a pair upper connecting rod, lower pull rod, described low
Warm thermostat can move 0.33mm on the direction where the corresponding upper connecting rod, lower pull rod；
Step S2, observe the corresponding upper connecting rod, lower pull rod dynamometer reading, if the reading is more than the pull-up
The ultimate tension of bar, lower pull rod answers each self-reversal to adjust the adjusting nut of the upper connecting rod, lower pull rod, makes the reading
It is reduced in weight range allowable；
Step S3 makes each self-reversal of the adjusting nut of corresponding a pair drag link adjust 60 degree, the cryogenic thermostat
Device can move 0.33mm on the direction where the corresponding drag link；
Step S4 observes the reading of the dynamometer of corresponding two drag links, if the reading is more than the drag link
Ultimate tension, answer each self-reversal to adjust the adjusting nut of the drag link, make it is described reading be reduced to pulling force model allowable
In enclosing；
Step S5, according to magnetic data, according to step S1, S2, S3, S4 repetitive operation, or according to step S3, S4, S1, S2 weight
Multiple operation completes the suspension and adjusts work in the first harmonic in the directions Bz and the directions Br.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610614246.7A CN106163071B (en) | 2016-07-29 | 2016-07-29 | The suspension and method of a kind of adjustment superconducting cyclotron magnetic field first harmonic |
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| CN201610614246.7A CN106163071B (en) | 2016-07-29 | 2016-07-29 | The suspension and method of a kind of adjustment superconducting cyclotron magnetic field first harmonic |
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| CN106163071B true CN106163071B (en) | 2018-08-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872918B (en) * | 2017-12-12 | 2023-12-29 | 合肥中科离子医学技术装备有限公司 | Magnet assembly equipment for superconducting cyclotron |
| CN108544117B (en) * | 2018-07-04 | 2019-10-15 | 中国原子能科学研究院 | A kind of welding method of superconducting cyclotron vacuum chamber different wall thickness welding position |
| CN109195300B (en) * | 2018-09-20 | 2020-01-24 | 中国原子能科学研究院 | Contact pin type magnetic field synchronous adjusting device for cyclotron |
| CN110944445B (en) * | 2019-11-28 | 2020-11-10 | 中国原子能科学研究院 | Beam centering adjustment method for intermediate-energy superconducting cyclotron |
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| JP2002043117A (en) * | 2000-07-26 | 2002-02-08 | Sumitomo Heavy Ind Ltd | Conductively cooled superconducting magnet |
| CN103370992A (en) * | 2010-10-26 | 2013-10-23 | 离子束应用股份有限公司 | Magnetic structure for circular ion accelerator |
| US8836205B2 (en) * | 2012-06-01 | 2014-09-16 | Sumitomo Heavy Industries, Ltd. | Cyclotron |
| CN104813750A (en) * | 2012-09-28 | 2015-07-29 | 梅维昂医疗系统股份有限公司 | Magnetic shims to alter magnetic fields |
| JP5868789B2 (en) * | 2012-06-14 | 2016-02-24 | 住友重機械工業株式会社 | cyclotron |
| CN106068055A (en) * | 2015-04-22 | 2016-11-02 | 住友重机械工业株式会社 | Cyclotron and superconducting magnet |
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- 2016-07-29 CN CN201610614246.7A patent/CN106163071B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002043117A (en) * | 2000-07-26 | 2002-02-08 | Sumitomo Heavy Ind Ltd | Conductively cooled superconducting magnet |
| CN103370992A (en) * | 2010-10-26 | 2013-10-23 | 离子束应用股份有限公司 | Magnetic structure for circular ion accelerator |
| US8836205B2 (en) * | 2012-06-01 | 2014-09-16 | Sumitomo Heavy Industries, Ltd. | Cyclotron |
| JP5868789B2 (en) * | 2012-06-14 | 2016-02-24 | 住友重機械工業株式会社 | cyclotron |
| CN104813750A (en) * | 2012-09-28 | 2015-07-29 | 梅维昂医疗系统股份有限公司 | Magnetic shims to alter magnetic fields |
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