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Title: The calibration and monitoring system for the PHENIX lead-scintillator electromagnetic calorimeter

Conference ·
OSTI ID:658372

A system for calibrating the PHENIX lead-scintillator electromagnetic calorimeter modules with cosmic rays and monitoring the stability during operation is described. The system is based on a UV laser which delivers light to each module through a network of optical fibers and splutters and is monitored at various points with silicon and vacuum photodiodes. Results are given from a prototype system which used a nitrogen laser to set the initial phototube gains and to establish the energy calibration of calorimeter modules and monitor their stability. A description of the final system to be used in PHENIX based on a high power YAG laser, is also given.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Energy Research, Washington, DC (United States)
DOE Contract Number:
AC02-98CH10886
OSTI ID:
658372
Report Number(s):
BNL-65335; CONF-9711110-; ON: DE98004626; BR: KB020201; TRN: 98:011120
Resource Relation:
Conference: Conference on scintillating and fiber detectors (SCIFI 97), South Bend, IN (United States), 2-6 Nov 1997; Other Information: PBD: Nov 1997
Country of Publication:
United States
Language:
English