Design and Performance Measurement of the 1GeV/c Multiparticle Magnetic Spectrometer in the BEPC-LINAC Test Beam

LI Jia-Cai; ZHANG Liang-Sheng; HU Chun-Liang; WU Yuan-Ming; CUI Xiang-Zong; LIU Zheng-Quan; ZHANG Shao-Ping; ZHOU Bao-Qing; ZHENG Lin-Sheng

Chinese Physics C> 2005, Vol. 29> Issue(1) : 55-61

Design and Performance Measurement of the 1GeV/c Multiparticle Magnetic Spectrometer in the BEPC-LINAC Test Beam

Institute of High Energy Physics,CAS,Beijing 100049,China

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Abstract：
The 2Q2D magnetic spectrometer operating at the BEPC-Linac test beam site consists of 2 quadrupole magnets,2 dipoles and 2 position sensitive detectors.The spectrometer has a maximum acceptance of solid angle 5×10^-4sr,a momentum range 0.2—1.3gev/c.Beam cross section and momentum spectra have been measured on the focal plane.A reference method for momentum measurement based on the TOF difference of proton and electron is introduced.

References

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. SHIBATA T A, KOBAYASHI T, NOMAO T et al. NIM, 1981, 179:67-762. ORAM C J, WARREN J B, MARSHALL G M et al. NIM, 1981, 179:95-1033. BARBIER M, DOWELL J D, KAMUS P I P et al. NIM, 1963, 20:66-704. MA Ji-Mao, MAO Ze-Pu et al. HEPNP, 1987, 11( 4) : 441-450 (in Chinese)(马基茂，毛泽普等.高能物理与核物理,1987,11(4):441-450)5. LU Jun-Guang et al. HEPNP, 1999, 23( 6) : 505-511(in Chinese)(吕军光等.高能物理与核物理, 1999,23(6):505-511)6. DRENTJE A G, ENGE H A, KOWALSKI S B. NIM, 1974, 122:485-4907. ANDERSON E W, COLLINS G B, FISHER G P et al . NIM, 1974,122: 587-5988. BANFORD A P. The Transport of Charged Part icle Beams. Beijin:Atomic Energy Press: 1984. 188-192, 156(in Chinese)([英]A.P.班福德著.刘经之等译.带电粒子束的输运.北京:原子能出版社，1984. 188-192,156)

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LI Jia-Cai, ZHANG Liang-Sheng, HU Chun-Liang, WU Yuan-Ming, CUI Xiang-Zong, LIU Zheng-Quan, ZHANG Shao-Ping, ZHOU Bao-Qing and ZHENG Lin-Sheng. Design and Performance Measurement of the 1GeV/c Multiparticle Magnetic Spectrometer in the BEPC-LINAC Test Beam[J]. Chinese Physics C, 2005, 29(1): 55-61.

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Received: 2004-04-23
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

Design and Performance Measurement of the 1GeV/c Multiparticle Magnetic Spectrometer in the BEPC-LINAC Test Beam

Corresponding author: LI Jia-Cai,

Institute of High Energy Physics,CAS,Beijing 100049,China

Received Date: 2004-04-23
Accepted Date: 1900-01-01
Available Online: 2005-01-05

Abstract: The 2Q2D magnetic spectrometer operating at the BEPC-Linac test beam site consists of 2 quadrupole magnets,2 dipoles and 2 position sensitive detectors.The spectrometer has a maximum acceptance of solid angle 5×10^-4sr,a momentum range 0.2—1.3gev/c.Beam cross section and momentum spectra have been measured on the focal plane.A reference method for momentum measurement based on the TOF difference of proton and electron is introduced.