Study of eddy current power loss in an RCS vacuum chamber

XU Shou-Yan; WANG Sheng

doi:10.1088/1674-1137/36/2/011

Chinese Physics C> 2012, Vol. 36> Issue(2) : 160-166 DOI: 10.1088/1674-1137/36/2/011

Study of eddy current power loss in an RCS vacuum chamber

XU Shou-Yan ,
WANG Sheng ^,

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Abstract：
In a Rapid Cycling Synchrotron (RCS), power loss due to an eddy current on the metal vacuum chamber would cause heating of the vacuum chamber. It is important to study the effect for estimating eddy current induced power loss and temperature growth. Analytical formulas for eddy current power loss for various types of vacuum chambers are derived for dipole and quadrupole repectively. By using the prototype of dipole of CSNS/RCS, an experiment was done to test the analytical formula. The derived formulas were applied to calculating the eddy current power loss on some special structures of an RCS vacuum chamber.

References

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WANG S et al. Chinese Physics C (HEP NP), 2009,33(S2): 1-32 Bennett J, Elsey R, Dossett A. Vacuum, 1978, 28: 507-5093 Kinsho M et al. Vacuum, 2004, 73: 187-1934 Horikoshi G et al. Vacuum System for the KEK ProtonSynchrotron, PAC19775 Gardner C et al. Conceptual Design of the RCMS, BNL.20036 Lee Y Y. Estimate of Eddy Current Power Loss in theDipole Vacuum Chamber, Booster Technical Note 51,Brookhaven National Laboratory. 19867 Lee S Y. Nuclear Instruments and Methods in Physics Re-search A, 1991, 300: 151-1588 Conceptual Design Report of Energy Modulation Ion Ther-apy Facility. IHEP-Report, May, 20089 HUANG S Y, PU S Z. Heat and Mass Transfer, 1995, 30:411-41510 YANG S M, TAO W S. Heat Transfer Theory, Higher Ed-ucation Press of China. 1998

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XU Shou-Yan and WANG Sheng. Study of eddy current power loss in an RCS vacuum chamber[J]. Chinese Physics C, 2012, 36(2): 160-166. doi: 10.1088/1674-1137/36/2/011

XU Shou-Yan and WANG Sheng. Study of eddy current power loss in an RCS vacuum chamber[J]. Chinese Physics C, 2012, 36(2): 160-166. doi: 10.1088/1674-1137/36/2/011 shu

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Received: 2011-05-18
Revised: 2011-05-24

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of eddy current power loss in an RCS vacuum chamber

XU Shou-Yan
WANG Sheng ^,

Corresponding author: WANG Sheng,

Received Date: 2011-05-18
Accepted Date: 2011-05-24
Available Online: 2012-02-05

Abstract: In a Rapid Cycling Synchrotron (RCS), power loss due to an eddy current on the metal vacuum chamber would cause heating of the vacuum chamber. It is important to study the effect for estimating eddy current induced power loss and temperature growth. Analytical formulas for eddy current power loss for various types of vacuum chambers are derived for dipole and quadrupole repectively. By using the prototype of dipole of CSNS/RCS, an experiment was done to test the analytical formula. The derived formulas were applied to calculating the eddy current power loss on some special structures of an RCS vacuum chamber.