DIRC - The Particle Identification System for BaBar
I have the pleasure of reporting on the status of the DIRC particle identification sub-system(2) of the BaBar Detector, running at the asymmetric B Factory at SLAC. The acronym DIRC stands for ''Detection of Internally Reflected Cherenkov Light.'' This device grows out of our group's experience with ring-imaging Cherenkov devices founded on a long partnership with Tom Ypsilantis and in particular with the CRID device for the SLD experiment. Blair Ratcliff had the brilliant idea of using the totally internally reflected Cherenkov light created in quartz bars, and transported out to the photon detectors by those same quartz bars, to provide excellent {pi}, K, p particle identification in the momentum range important for the B Factory. His naming of this new instrument was aptly ''CRID'' spelled backwards. The detailed design, building and commissioning of the DIRC sub-system was the work of a large international collaboration of French and U.S. groups. The device has proven to be a very robust detector, with the promised performance essentially fully realized, and is being effectively utilized in almost all of the current BaBar physics analysis.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 800026
- Report Number(s):
- SLAC-PUB-9406; TRN: US200308%%496
- Resource Relation:
- Other Information: PBD: 19 Aug 2002
- Country of Publication:
- United States
- Language:
- English
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DIRC, the internally reflecting ring imaging Cherenkov detector for BABAR
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