THE LUMINOSITY MONITOR OF BES

NI Hui-Ling; ZHOU Hua-Shi; JIANG Chun-Hua; GUO Hong-Fei; XU Jian-Guo; ZHU Qi-Ming; WANG Fang; LIU Wei; LI Jia-Hua

Chinese Physics C> 1990, Vol. 14> Issue(6) : 490-499

THE LUMINOSITY MONITOR OF BES

Institute of High Energy Physics Academia Sinica,Beijing

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Abstract：
In this paper,we present the design and construction of the luminosity monitor,the main features of the detectors,and the functions of the functions of the read-out circuits and data acquisition system of the Beijing spectrometer (BES).In october of 1988,the luminosity monitor provided the first colliding luminosity of BEPC,and the initial luminosity was 5×10²⁸/cm².sec.During the later colliding experimental operation,the luminosity monitor also provided the colliding luminosities,which were in good agreement with those calculated by the operation parameters of the BEPC.
References

[1] L. H. O'NEILL et al., Nucl. Instr. and Merh., 216 (1983), 361，[2] 倪蕙菩等，高能物理与核物理,13(1989)，870.

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NI Hui-Ling, ZHOU Hua-Shi, JIANG Chun-Hua, GUO Hong-Fei, XU Jian-Guo, ZHU Qi-Ming, WANG Fang, LIU Wei and LI Jia-Hua. THE LUMINOSITY MONITOR OF BES[J]. Chinese Physics C, 1990, 14(6): 490-499.

NI Hui-Ling, ZHOU Hua-Shi, JIANG Chun-Hua, GUO Hong-Fei, XU Jian-Guo, ZHU Qi-Ming, WANG Fang, LIU Wei and LI Jia-Hua. THE LUMINOSITY MONITOR OF BES[J]. Chinese Physics C, 1990, 14(6): 490-499. shu

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Received: 1900-01-01
Revised: 1900-01-01

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