A precision luminosity monitor for electron-positron storage rings

doi:10.1016/0167-5087(83)90503-3

Nuclear Instruments and Methods in Physics Research

Volume 216, Issue 3, 1 November 1983, Pages 361-379

https://doi.org/10.1016/0167-5087(83)90503-3 Get rights and content

Abstract

A very accurate luminosity monitor for an e⁺e⁻ storage ring experiment has been built and successfully operated. The systematic error on the measured luminosity is estimated to be approximately 0.6%.

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Cited by (1)

The luminosity monitor of Beijing spectrometer
1993, Nuclear Inst. and Methods in Physics Research, A
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 × 10²⁸/cm² 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.

^☆: Work supported by the National Science Foundation under Grants GP2289 and GP38611.

^∗∗: Presently at Bell Laboratories, Whippany, New Jersey 07981, USA.

⁺: Visitor from Physikalisches Institut, Universität Bonn, Bonn, Germany.

⁺⁺: Presently at Advance Relational Technology, Redwood City, California 94062, USA.

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Nuclear Instruments and Methods in Physics Research

A precision luminosity monitor for electron-positron storage rings☆

Abstract

Nucl. Instr. and Meth.

Nucl. Phys.

Phys. Rev. Lett.

Phys. Rev. D

Phys. Rev. D

Phys. Rev. Lett.

Phys. Rev. Lett.

Atti. Accad. Naz. Lincei

The luminosity monitor of Beijing spectrometer