DIRC, the internally reflecting ring imaging Cherenkov detector for BABAR

Conference · Fri Oct 31 23:00:00 EST 1997

DOI:https://doi.org/10.1109/23.682602· OSTI ID:666122

Adam, I; Aston, D ^[1]; Aleksan, R ^[2]

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1. Stanford Univ., CA (US). Stanford Linear Accelerator Center
2. CEA, Gif-sur-Yvette (France); and others

The DIRC is a new type of Cherenkov imaging device that will be used for the first time in the BABAR detector at the asymmetric B-factory, PEP-II. It is based on total internal reflection and uses long, rectangular bars made from synthetic fused silica as Cherenkov radiator and light guide. The principles of the DIRC ring imaging Cherenkov technique are explained and results from the prototype program are presented. Its choice for the BABAR detector particle identification system is motivated, followed by a discussion of the quartz radiator properties and the detector design.

• Research Organization: Stanford Univ., Stanford Linear Accelerator Center, CA (US); Lawrence Berkeley National Lab., CA (US); Univ. of California, Santa Barbara, CA (US); Colorado State Univ., Dept. of Physics, Fort Collins, CO (US)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (US); National Science Foundation, Washington, DC (US)
• DOE Contract Number: AC03-76SF00515; AC03-76SF00098; AM03-76SF00010; FG03-93ER40788
• OSTI ID: 666122
• Report Number(s): SLAC-PUB--7706; CONF-971147--; ON: DE98059168; CNN: Grant NSF PHY-95-10439; Grant NSF PHY-95-11999
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHERENKOV COUNTERS
DESIGN
ENGINEERS
OPTICAL FIBERS
PARTICLE IDENTIFICATION
QUARTZ
RADIATORS
REFLECTION
SILICA