CN106163071A - A kind of suspension adjusting superconducting cyclotron magnetic field first harmonic and method - Google Patents
A kind of suspension adjusting superconducting cyclotron magnetic field first harmonic and method Download PDFInfo
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- CN106163071A CN106163071A CN201610614246.7A CN201610614246A CN106163071A CN 106163071 A CN106163071 A CN 106163071A CN 201610614246 A CN201610614246 A CN 201610614246A CN 106163071 A CN106163071 A CN 106163071A
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- cryostat
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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 field, be specifically related to a kind of suspension adjusting superconducting cyclotron magnetic field first harmonic and method.Suspension therein is for adjusting the first harmonic in the magnetic field of superconducting coil, it is arranged on the cryostat of annular of superconducting cyclotron, superconducting coil is arranged in cryostat, wherein, including the some upper connecting rods being arranged on cryostat upper surface, it is arranged on some lower links of cryostat lower surface, it is arranged on some drag links of cryostat side, by adjusting upper connecting rod, lower link, the pulling force of drag link is capable of the position adjustments of superconducting coil, position adjustments includes the Bz direction to superconducting coil and the regulation in Br direction, Bz direction refers to the axial of cryostat, Br direction refers to the radial direction of cryostat.The simple in construction of suspension provided by the present invention, meets easy to operate, cheap advantage simultaneously.
Description
Technical field
The invention belongs to superconducting cyclotron technical field, be specifically related to a kind of adjustment superconducting cyclotron magnetic field one
The suspension of subharmonic and method.
Background technology
Cyclotron is to utilize magnetic field and electric field jointly to make charged particle make circumnutation, at the volley through high-frequency electric field
The device repeatedly accelerated, is the important instrument in high-energy physics, and wherein superconducting cyclotron is that current medical proton therapeutic adds
The nucleus equipment of speed device.Medical proton therapy accelerator is capable of swelling with the proton in microcosmos, Heavy ion beam treatment
Tumor, is the most advanced radiation therapy technology in the world today, and the most indivedual developed countries grasp and apply this technology.Domestic open up
Open but the development work of superconducting cyclotron is temporarily had not been completed.
The magnetic field of superconducting cyclotron is mainly provided by room temperature main magnet and superconducting coil, and superconducting coil machines
After, need the first harmonic magnetic field performance of Analysis of Superconducting coil, during magnetic surveyed by superconducting coil, hang superconducting line by regulation
The suspension of circle can regulate superconducting line circle body Br direction, first harmonic magnetic field, Bz direction with satisfied design requirement.Room temperature master
After Magnet assembles with superconducting coil entirety, need to readjust suspension according to surveying magnetic knot fruit, finally need to meet superconduction and return
Rotation accelerator magnetic field Br direction, the design requirement in first harmonic magnetic field, Bz direction.Existing room temperature cyclotron magnetic field is once
The adjustment mode of harmonic wave is entirely different with superconducting cyclotron, it is impossible to for the tune of the first harmonic of superconducting cyclotron
Whole.
Summary of the invention
For the adjustment of the first harmonic of superconducting cyclotron, it is an object of the invention to provide a kind of suspension, energy
Enough meet the adjustment of the first harmonic of superconducting cyclotron, by regulation suspension, superconducting line circle body Br side can be regulated
To, first harmonic magnetic field, Bz direction.
For reaching object above, the technical solution used in the present invention is that a kind of adjustment superconducting cyclotron magnetic field is the most humorous
The suspension of ripple, for adjusting the first harmonic in magnetic field of superconducting coil, is arranged on annular low of superconducting cyclotron
On temperature thermostat, described superconducting coil is arranged in described cryostat, wherein, including being arranged on described cryostat
Some upper connecting rods of end face, are arranged on some lower links of described cryostat lower surface, are arranged on described low temperature permanent
Some drag links of temperature device side, are capable of described superconduction by the described upper connecting rod of adjustment, lower link, the pulling force of drag link
The position adjustments of coil, described position adjustments includes the Bz direction to described superconducting coil and the regulation in Br direction, described Bz side
To referring to the axial of described cryostat, described Br direction refers to the radial direction of described cryostat.
Further, described upper connecting rod is 4, is uniformly set on the upper surface of described cryostat, described under
Pull bar is 4, is uniformly set on the lower surface of described cryostat, described upper connecting rod and described lower link one a pair
Answer and coaxial.
Further, described drag link is 4, is uniformly arranged on the side of described cryostat, permanent along described low temperature
The radial direction of temperature device is corresponding and coaxial two-by-two.
Further, described upper connecting rod, lower link, drag link top are provided with adjusting nut, and described adjusting nut can be adjusted
Save the pulling force of described upper connecting rod, lower link, drag link.
Further, the most described upper connecting rod, each self-reversal of described adjusting nut of lower link regulate 60 degree, described
Cryostat can move up 0.33mm in the side of the most described upper connecting rod, lower link place；
The each self-reversal of described adjusting nut of described drag link corresponding two-by-two regulates 60 degree, and described cryostat can
0.33mm is moved up in the side at described drag link place corresponding two-by-two.
Further, described upper connecting rod, lower link, drag link top are provided with ergometer, and described ergometer can show
Described adjusting nut regulation described upper connecting rod, lower link, the pulling force of drag link.
For reaching object above, the invention also discloses a kind of side adjusting superconducting cyclotron magnetic field first harmonic
Method, comprises the steps:
Step (S1), makes described adjusting nut each self-reversal regulation 60 degree of upper connecting rod described in a pair of correspondence, lower link,
Described cryostat can move up 0.33mm in corresponding described upper connecting rod, the side at lower link place；
Step (S2), observes the reading of the described ergometer of the described upper connecting rod of correspondence, lower link, if described reading is big
In described upper connecting rod, the ultimate tension of lower link, described upper connecting rod, the described adjusting nut of lower link should be regulated by each self-reversal,
Described reading is made to be reduced in weight range allowable；
Step (S3), makes each self-reversal of described adjusting nut of drag link described in a pair of correspondence regulate 60 degree, described low
Temperature thermostat can move up 0.33mm in the side at corresponding described drag link place；
Step (S4), observes the reading of the described ergometer of two corresponding described drag links, if described reading is more than
The ultimate tension of described drag link, should each self-reversal regulate described drag link described adjusting nut, make described reading 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, completes described suspension in described Bz direction and described Br direction once
Harmonic wave adjustment work.
The beneficial effects of the present invention is:
The various combination application of many different directions upper connecting rods realizes the tune in the first harmonic magnetic field in Br direction, Bz direction
Whole.On pull bar, the use ergometer each pull bar stress of detection is to prevent pullup acceleration, the i.e. adjustable superconduction of adjusting yoke end cap
Magnet positions, thus adjust the first harmonic in superconducting cyclotron magnetic field.Above regulative mode, simplifies the knot of suspension
Structure, meets the features such as easy to operate, cheap simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the described cryostat being provided with described suspension arrangement in the specific embodiment of the invention；
Fig. 2 is the described adjusting nut signal with described ergometer of pull bar end described in the specific embodiment of the invention
Figure；
In figure: 1-cryostat, 2-upper connecting rod, 3-drag link, 4-lower link, 5-ergometer, 6-adjusting nut.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of suspension adjusting superconducting cyclotron magnetic field first harmonic that the present invention provides, use
In the first harmonic in the magnetic field adjusting superconducting coil, it is arranged on the cryostat 1 of annular of superconducting cyclotron, superconduction
Coil is arranged in cryostat 1, wherein, including being arranged on some upper connecting rods 2 of cryostat 1 upper surface, arranges
At some lower links 4 of cryostat 1 lower surface, it is arranged on some drag links 3 of cryostat 1 side, passes through
Adjustment upper connecting rod 2, lower link 4, the pulling force of drag link 3 are capable of the position adjustments of superconducting coil, and position adjustments includes super
The Bz direction of loop and the regulation in Br direction, Bz direction refers to that the axial of cryostat 1, Br direction refer to cryostat
The radial direction of 1.
Upper connecting rod 2 is 4, is uniformly set on the upper surface of cryostat 1, and lower link 4 is 4, uniformly divides
Cloth is arranged on the lower surface of cryostat 1, upper connecting rod 2 and lower link 4 one_to_one corresponding and coaxial.Drag link 3 is 4, all
On the even side being arranged on cryostat 1, corresponding and coaxial two-by-two along the radial direction of cryostat 1.Often group upper connecting rod 2, horizontal stroke
Pull bar 3, lower link 4 are spaced 90 degree in superconducting coil circumference angle position.
As in figure 2 it is shown, upper connecting rod 2, lower link 4, drag link 3 top are provided with adjusting nut 6, adjusting nut 6 can be adjusted
Joint upper connecting rod 2, lower link 4, the pulling force of drag link 3.In the present embodiment, adjusting nut 6 uses M16X2 hex nut.
Upper connecting rod 2, each self-reversal of adjusting nut 6 of lower link 4 regulate 60 degree one to one, and cryostat 1 can
0.33mm is moved up in the side of upper connecting rod 2 one to one, lower link 4 place；
The each self-reversal of adjusting nut 6 of drag link 3 corresponding two-by-two regulates 60 degree, and cryostat 1 can be the most right
The side at drag link 3 place answered moves up 0.33mm.
Upper connecting rod 2, lower link 4, drag link 3 top are provided with ergometer 5, and ergometer 5 can regulate by vision-control nut 6
Upper connecting rod 2, lower link 4, the pulling force of drag link 3.
In order to realize superconducting cyclotron magnetic field first harmonic, present invention also offers a kind of superconducting cyclotron that adjusts and accelerate
The method of device magnetic field first harmonic, its principle is based on surveying magnetic data, is changed by axial suspended portion (upper connecting rod 2, lower link 4)
Become superconducting coil position thus adjust the first harmonic magnetic field in superconducting coil Bz direction, and according to surveying magnetic data, by radially
Suspended portion (drag link 3) changes superconducting coil position thus adjusts the first harmonic magnetic field in superconducting coil Br direction.By right
The axially adjustment of suspended portion, radially suspended portion, makes Bz direction, the first harmonic magnetic field in Br direction meets Magnetic Field Design and wants
Ask.Specifically include following steps:
Step S1, makes adjusting nut 6 each self-reversal regulation 60 degree of a pair upper connecting rod 2 of correspondence, lower link 4, and low temperature is permanent
Temperature device can move up 0.33mm in corresponding upper connecting rod 2, the side at lower link 4 place；
Step S2, observes the reading of the ergometer 5 of corresponding upper connecting rod 2, lower link 4, if reading more than upper connecting rod 2,
The ultimate tension of lower link 4, should regulate upper connecting rod 2, the adjusting nut 6 of lower link 4 by each self-reversal, make reading be reduced to allowable drawing
In the range of power；
Step S3, makes each self-reversal of adjusting nut 6 of a pair drag link 3 of correspondence regulate 60 degree, and cryostat can
0.33mm is moved up in the side at corresponding drag link 3 place；
Step S4, observes the reading of the ergometer 5 of two corresponding drag links 3, if reading is more than the limit of drag link 3
Pulling force, should each self-reversal regulation drag link 3 adjusting nut 6, make reading 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 operation, completes the suspension first harmonic adjustment work in Bz direction and Br direction.(i.e. suspension Bz direction
The first harmonic adjustment work in first harmonic adjustment work and Br direction should alternately, i.e. in a suspension Bz direction
First harmonic adjustment work needs to carry out the first harmonic adjustment work in Br direction or a suspension Br direction after completing
First harmonic adjustment work needs to carry out the first harmonic adjustment work in Bz direction after completing.)
Device of the present invention is not limited to the embodiment described in detailed description of the invention, those skilled in the art according to
Technical scheme draws other embodiment, also belongs to the technological innovation scope of the present invention.
Claims (7)
1. adjust a suspension for superconducting cyclotron magnetic field first harmonic, for adjusting the one of the magnetic field of superconducting coil
Subharmonic, is arranged on the cryostat (1) of annular of superconducting cyclotron, and described superconducting coil is arranged on described low temperature
In thermostat (1), it is characterized in that: include being arranged on some upper connecting rods (2) of described cryostat (1) upper surface, arrange
Some lower links (4) of described cryostat (1) lower surface, it is arranged on the some of described cryostat (1) side
Root drag link (3), is capable of described superconducting line by the described upper connecting rod of adjustment (2), lower link (4), the pulling force of drag link (3)
The position adjustments of circle, described position adjustments includes the Bz direction to described superconducting coil and the regulation in Br direction, described Bz direction
Referring to the axial of described cryostat (1), described Br direction refers to the radial direction of described cryostat (1).
2. suspension as claimed in claim 1, is characterized in that: described upper connecting rod (2) is 4, is uniformly set at institute
Stating on the upper surface of cryostat (1), described lower link (4) is 4, is uniformly set at described cryostat (1)
Lower surface on, described upper connecting rod (2) and described lower link (4) one_to_one corresponding and coaxial.
3. suspension as claimed in claim 2, is characterized in that: described drag link (3) is 4, is uniformly arranged on described low
On the side of temperature thermostat (1), corresponding and coaxial two-by-two along the radial direction of described cryostat (1).
4. suspension as claimed in claim 2 or claim 3, is characterized in that: described upper connecting rod (2), lower link (4), drag link (3)
Top is provided with adjusting nut (6), and described adjusting nut (6) can regulate described upper connecting rod (2), lower link (4), drag link
(3) pulling force.
5. suspension as claimed in claim 4, is characterized in that:
The most described upper connecting rod (2), described adjusting nut (6) each self-reversal of lower link (4) regulate 60 degree, described low
Temperature thermostat (1) can move up 0.33mm in the side of the most described upper connecting rod (2), lower link (4) place；
Described adjusting nut (6) each self-reversal of described drag link (3) corresponding two-by-two regulates 60 degree, described cryostat
(1) 0.33mm can be moved up in the side at described drag link (3) place corresponding two-by-two.
6. suspension as claimed in claim 5, is characterized in that: described upper connecting rod (2), lower link (4), drag link (3) push up
End is provided with ergometer (5), and described ergometer (5) can show that described adjusting nut (6) regulates described upper connecting rod (2), drop-down
Bar (4), the pulling force of drag link (3).
7. the adjustment superconducting cyclotron magnetic field of the suspension used described in any one of claim 1 to 6 is the most humorous
The method of ripple, comprises the steps:
Step (S1), makes described adjusting nut each self-reversal regulation 60 degree of upper connecting rod described in a pair of correspondence, lower link, described
Cryostat can move up 0.33mm in corresponding described upper connecting rod, the side at lower link place；
Step (S2), observes the reading of the described ergometer of the described upper connecting rod of correspondence, lower link, if described reading is more than institute
State the ultimate tension of upper connecting rod, lower link, described upper connecting rod, the described adjusting nut of lower link should be regulated by each self-reversal, make institute
State reading to be reduced in weight range allowable；
Step (S3), makes each self-reversal of described adjusting nut of drag link described in a pair of correspondence regulate 60 degree, and described low temperature is permanent
Temperature device can move up 0.33mm in the side at corresponding described drag link place；
Step (S4), observes the reading of the described ergometer of two corresponding described drag links, if described reading is more than described
The ultimate tension of drag link, should each self-reversal regulate described drag link described adjusting nut, make described reading be reduced to allowable
In weight range；
Step (S5), according to magnetic data, according to step (S1), (S2), (S3), (S4) repetitive operation, or according to step
(S3), (S4), (S1), (S2) repetitive operation, complete the most humorous in described Bz direction and described Br direction of described suspension
Ripple adjustment work.
Priority Applications (1)
| 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 CN106163071B (en) | 2018-08-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107872918A (en) * | 2017-12-12 | 2018-04-03 | 合肥中科离子医学技术装备有限公司 | One kind is used for superconducting cyclotron upper magnet assembly equipment |
| CN108544117A (en) * | 2018-07-04 | 2018-09-18 | 中国原子能科学研究院 | A kind of welding method of superconducting cyclotron vacuum chamber |
| CN109195300A (en) * | 2018-09-20 | 2019-01-11 | 中国原子能科学研究院 | A kind of contact pin type field synchronous regulating device for cyclotron |
| CN110944445A (en) * | 2019-11-28 | 2020-03-31 | 中国原子能科学研究院 | Beam centering adjustment method for intermediate-energy superconducting cyclotron |
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| CN110944445A (en) * | 2019-11-28 | 2020-03-31 | 中国原子能科学研究院 | Beam centering adjustment method for intermediate-energy superconducting cyclotron |
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