Thin scintillating tiles (with fiber readout and high light-yield) for the OPAL endcaps
- Department of Physics, University of Maryland, College Park, Maryland 20742 (United States)
Scintillating tiles with embedded wavelength-shifting fiber readout have recently been installed in the OPAL endcaps to improve trigger performance, time resolution and hermeticity for experiments at LEP II. The design is constrained to provide hermetic coverage of the available area with high single particle efficiency, uniform response and good time resolution, notwithstanding the limited space for the detector and its long readout cables, and despite the strong endcap magnetic field. A high light yield per embedded fiber is required. This paper motivates and describes the design, and demonstrates that the performance meets the required targets. A light yield of 14 photoelectrons/MIP and a time resolution of 3ns have been obtained during 1997 LEP operation.
- OSTI ID:
- 21199295
- Journal Information:
- AIP Conference Proceedings, Vol. 450, Issue 1; Conference: SCIFI97: 3. conference on scintillating and fiber detectors, Notre Dame, IN (United States), 2-6 Nov 1997; Other Information: DOI: 10.1063/1.56941; (c) 1998 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
DESIGN
EFFICIENCY
EVALUATION
LEP STORAGE RINGS
MAGNETIC FIELDS
MULTIPARTICLE SPECTROMETERS
OPERATION
OPTICAL FIBERS
PARTICLE IDENTIFICATION
PARTICLE TRACKS
PERFORMANCE
READOUT SYSTEMS
SOLID SCINTILLATION DETECTORS
TIME RESOLUTION
VISIBLE RADIATION
YIELDS