Radiation and solvent effects on wavelength shifting fibers used with liquid scintillators

doi:10.1016/0969-806X(93)90058-3

Radiation Physics and Chemistry

Volume 41, Issues 1–2, January–February 1993, Pages 215-219

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Abstract

The chemical compatibility of wave length shifting fibers with several liquid scintillators has been investigated. Based on systematic characterization of the behavior of the BC-517 family, a time of life of 70–450 years was estimated for the polystyrene based wave length shifting fiber in BC-517P scintillator. Wavelength shifting (WLS) fibers irradiated continuously to a dose of 6.4 Mrads (at .377 Mrad/hr of ⁶⁰Co) were observed to decrease from 100% to 5% transmission; however, after 100 hours of annealing, the transmission increased to 90%. GEANT3 simulations of a simplified calorimeter located behind a BaF₂ electromagnetic calorimeter for the GEM detector at SSC showed that the constant term in the energy resolution will change from 1.8 to 2.9 in five years at 10³⁴ luminosity for pseudorapidity η=3.

References (3)

K. Wick et al.
Radiation Damage of Wavelength Shifters and Its Recovery in the Presence of Oxygen
Nucl. Instr. and Meth.
(1989)

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Citation Excerpt :
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^∗: Oak Ridge National Laboratory is Managed by Martin Marietta Energy Systems, Inc. for the U.S. Department of Energy under contract DE-AC05-84OR21400.

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Radiation and solvent effects on wavelength shifting fibers used with liquid scintillators

Abstract

Nucl. Instr. and Meth.