BESIII TOF monitoring system

Qian Liu
Frederick Harris
James Kennedy
Steve Olsen
Marc Rosen
Chengping Shen
Garry Varner
Yuekun Heng
Zhijia Sun
Jinjie Wu
Kejun Zhu
Qi An
Changqing Feng
Shubin Liu

Collaborations:

Dept. of Physics and Astronomy, University of Hawaii, Institute of High Energy Physics, C.A.S, Dept. of Science and Technology, USTC

A monitor system of Beijing Spectrometer (BESIII) Time of flight (TOF) has been fabricated, installed and operated successfully during the BESIII running. The light source is 442~443 nm laser diode, which is stable and provides a pulse width as narrow as 50 ps and a peak power as large as 2.6 W. Two optical-fiber bundles with a total of 512 optical fibers are used to distribute the light to the TOF counters. The system is used to check the performance of each TOF daily during BESIII running. The paper presents the current performance of the system.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2009.APR.E1.42

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Bulletin of the American Physical Society

2009 APS April Meeting

Volume 54, Number 4

Saturday–Tuesday, May 2–5, 2009; Denver, Colorado

Session E1: Poster Session I (4:30-6:45pm)

Abstract: E1.00042 : BESIII TOF monitoring system

Authors:

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