Preliminary R&amp;D of vibrating wire alignment technique for HEPS

WU Lei; WANG Xiao-Long; LI Chun-Hua; QU Hua-Min

doi:10.1088/1674-1137/39/8/087002

Chinese Physics C> 2015, Vol. 39> Issue(8) : 087002 DOI: 10.1088/1674-1137/39/8/087002

Preliminary R&D of vibrating wire alignment technique for HEPS

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Abstract：
The alignment tolerance of multipoles on a girder is better than ± 30 μm in the storage ring of the High Energy Photon Source (HEPS) which will be the next project at IHEP (Institute of High Energy Physics). It is difficult to meet the precision when only using the traditional optical survey method. In order to achieve this goal, a vibrating wire alignment technique with high precision and sensitivity is considered to be used in this project. This paper presents some preliminary research works about theory, scheme design and achievements.

References

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Feasibility Report of HEPS. 2014[2] Alexander T. Nuclear Instrument and Methods in Physics Research A, 1997, 399: 185-194[3] Bottura L, Buzio M, Pauletta S et al. Measurement of Magnetic Axis in Accelerator Magnets: Critical Comparison of Methods and Instruments. IMTC 2006[4] Temnykh A, Levashov Y, Wolf Z. Nuclear Instruments and Methods in Physics Research A, 2010, 622: 650-656[5] Zachary W. A Vibrating Wire System for Quadrupole Fiducialization, SLAC-TN-10-087. 2005[6] Arpaia P, Beaumont A, Deferne G et al. Single-stretched and Vibrating Wire Measurements at CERN, IMMW18, 2013[7] Wouters C, Calvi M, Vrankovic V et al. Vibrating Wire Technique and Phase Lock Loop for Finding the Magnetic Axis of Quadrupoles. IEEE Transaction on Applied Superconductivity. 2012[8] Jain A, Anerella M, Ganetis G et al. Vibrating Wire RD for Alignment of Multipole Magnets in NSLS-II. The 10th International Workshop on Accelerator Alignment. 2008[9] WANG X L, DONG L, WU L et al. Chinese Physics C, 2014, 38: 117010

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WU Lei, WANG Xiao-Long, LI Chun-Hua and QU Hua-Min. Preliminary R&D of vibrating wire alignment technique for HEPS[J]. Chinese Physics C, 2015, 39(8): 087002. doi: 10.1088/1674-1137/39/8/087002

WU Lei, WANG Xiao-Long, LI Chun-Hua and QU Hua-Min. Preliminary R&D of vibrating wire alignment technique for HEPS[J]. Chinese Physics C, 2015, 39(8): 087002. doi: 10.1088/1674-1137/39/8/087002 shu

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Received: 2014-11-20
Revised: 2014-12-10

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沈阳化工大学材料科学与工程学院沈阳 110142

Preliminary R&D of vibrating wire alignment technique for HEPS

Received Date: 2014-11-20
Accepted Date: 2014-12-10
Available Online: 2015-08-15

Abstract: The alignment tolerance of multipoles on a girder is better than ± 30 μm in the storage ring of the High Energy Photon Source (HEPS) which will be the next project at IHEP (Institute of High Energy Physics). It is difficult to meet the precision when only using the traditional optical survey method. In order to achieve this goal, a vibrating wire alignment technique with high precision and sensitivity is considered to be used in this project. This paper presents some preliminary research works about theory, scheme design and achievements.