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EGS4 calculations for a PEP-II luminosity monitor

Conference ·
OSTI ID:663291
The Asymmetric B-Factory currently being built at SLAC consists of a 9 GeV electron storage ring and a 3 GeV positron storage ring, known as PEP-II, and a large detector called BABAR. Because the commissioning of PEP-II starts approximately one year ahead of the installation of BABAR, it is desirable to have a dedicated system in place beforehand for measuring and optimizing the luminosity of the colliding beams. Accordingly, the EGS4 Code System has been used in the design of a quartz-glass Cherenkov hodoscope that monitors high-energy showers, initiated by photons emanating from radiative-Bhabba interactions at the Interaction Point located 8.5 meters upbeam. In this paper the authors present the results of a series of EGS4 calculations to determine the spatial resolution of such a detector, as well as to determine if there will be any serious limitations caused by radiation damage.
Research Organization:
Stanford Univ., Stanford Linear Accelerator Center, CA (US)
Sponsoring Organization:
USDOE Office of Energy Research, Washington, DC (US)
DOE Contract Number:
AC03-76SF00515
OSTI ID:
663291
Report Number(s):
SLAC-PUB--7621; CONF-9708183--; ON: DE98059123
Country of Publication:
United States
Language:
English