Preliminary Experiment on Beam-Based Alignment

MA Li; CAO JianShe; WANG Lin; ZHAO Zheng; WANG ShuMei

Chinese Physics C> 2000, Vol. 24> Issue(11) : 1038-1042

Preliminary Experiment on Beam-Based Alignment

Institute of High Energy Physics, CAS, Beijing 100039, China

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Abstract：
The offset of the beam position monitor (BPM) with respect to the magnetic center of the quadrupole can be determined by the method of the beam-based alignment. The BPM alignment accuracy can be improved by one order of magnitude compared with conventional surveying techniques. This paper gives a brief intreduction to the principle of the beam-based alignment and the description of the preliminary experiment performed on the BEPC storage ring. The considerations of the further experiments are also given.

References

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Rice D et al. Beam Diagnostic Instrumentation at CESR. IEEE Trans. on Nucl. Sci., 1983, NS– 30(4):2190–2193 2 R#246;jsel P. A Beam Pasition Measurement System Using Quadrupole Magnets Magnetic Center as the Position Reference.Nucl. Instr. and Meth. in Phys. Res., 1994, A343:374–3823 B#246;ge M, Brinkmann R. Optimization of Spin Polarization in the RERA Electron Ring Using Beam Based Alignment Procedures. In: Heller K J and Smith S L ed. AIP Conference Proceedings 1995, 343:287–2934 Tenenbaum P et al. Beam–Based Magnetic Alignment of the Final Focus Test Beam. In: Proc. of the 1995 Particle Accelerator Conference. New York: IEEE, Inc., 1995, 2096–20985 Portmann G et al. Antolnated Beam Based Alignment of the ALS Quadlupoles. In: Proc. of the 1995 Particle Accelerator Conference. New York: IEEE, Inc., 1995, 2693–26956 Endo K et al. Preliminary Orbit Measurement for Beam–Based Alignment. In: Myers S et al. ed. Proc. of the 5th European Particle Accelerator Conference. London: IOP Publishing Ltd., 1996, 1657–1659 7 Schmidt R. Misalignments from k–Modulation. In: Poole J ed. Proc. of the 3rd Workshop on LEP Performance, Geneva: CERN, 1993, 139–1428 MA Li, SHI Ping, YE KaiRong. High Energy Phys. and Nucl. Phys. (in Chinese), 1998, 22: (5):475–480(马力,石平,叶恺容,高能物理与核物理,1998,22(5):475—480)

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MA Li, CAO JianShe, WANG Lin, ZHAO Zheng and WANG ShuMei. Preliminary Experiment on Beam-Based Alignment[J]. Chinese Physics C, 2000, 24(11): 1038-1042.

MA Li, CAO JianShe, WANG Lin, ZHAO Zheng and WANG ShuMei. Preliminary Experiment on Beam-Based Alignment[J]. Chinese Physics C, 2000, 24(11): 1038-1042. shu

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Received: 1999-10-12
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Preliminary Experiment on Beam-Based Alignment

Corresponding author: MA Li,

Institute of High Energy Physics, CAS, Beijing 100039, China

Received Date: 1999-10-12
Accepted Date: 1900-01-01
Available Online: 2000-11-05

Abstract: The offset of the beam position monitor (BPM) with respect to the magnetic center of the quadrupole can be determined by the method of the beam-based alignment. The BPM alignment accuracy can be improved by one order of magnitude compared with conventional surveying techniques. This paper gives a brief intreduction to the principle of the beam-based alignment and the description of the preliminary experiment performed on the BEPC storage ring. The considerations of the further experiments are also given.