Title :
The distribution of laser light for the calibration and monitoring system of the ATLAS hadronic calorimeter
Author :
Alves, R. ; Carvalho, J. ; Ivaniouchenkov, Y. ; Mateus, J. ; Moita, E. ; Pinhão, J.
Author_Institution :
Dept. of Phys., Coimbra Univ., Portugal
Abstract :
In this paper we describe the design and preliminary results of a system to distribute light from a laser to 10,000 photomultiplier tubes (PMTs) in the ATLAS hadronic calorimeter. This system uses optical devices, plastic optical fibers and fibers connectors, specially designed for this application. The uniformity of distribution is reasonable and the light losses are acceptable within the light budget available and the range required
Keywords :
calibration; measurement by laser beam; particle calorimetry; photomultipliers; solid scintillation detectors; ATLAS hadronic calorimeter; calibration and monitoring system; fibers connectors; light losses; optical devices; photomultiplier tubes; plastic optical fibers; Calibration; Connectors; Fiber lasers; Monitoring; Optical design; Optical devices; Optical fiber devices; Optical fibers; Photomultipliers; Plastics;
Conference_Titel :
Nuclear Science Symposium, 1999. Conference Record. 1999 IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5696-9
DOI :
10.1109/NSSMIC.1999.842482
