A luminosity monitor (LM) was constructed at Beijing Electron Positron Collider (BEPC) responsible for measuring the colliding luminosity of BEPC. Being a part of the Beijing spectrometer (BES), which is a large major detector of the BEPC, the LM is also capable of providing the integrated luminosity for physics study in BES. By various means, such as fine design and careful manufacture of various counters, precise positioning of the LM, employing multifold and delay coincidences, etc., the LM is able to measure a relatively precise luminosity with a significantly suppressed background, e.g. the first colliding of BEPC in 1988 was detected and announced in time by the LM with a luminosity of 5 x 10(2)8/cm(2) s. Besides, some useful information was provided by the LM to assist the proper operation of the BEPC. In this paper, the construction, operation, experimental results and the error analysis of the LM are presented in detail.
Ni HL,Guo HF,Jiang CH,et al. THE LUMINOSITY MONITOR OF BEIJING SPECTROMETER[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,1993,336(3):542-551.
倪惠苓.,郭宏峰.,姜春华.,LIU, W.,徐建国.,...&ZHU, QM.(1993).THE LUMINOSITY MONITOR OF BEIJING SPECTROMETER.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,336(3),542-551.
倪惠苓,et al."THE LUMINOSITY MONITOR OF BEIJING SPECTROMETER".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 336.3(1993):542-551.