AGEING OF PLASTIC SCINTILLATORS
Results are presented which show that counter resolution is reduced when the plastic phosphor is left in the scintillation counter for a period of 18 months. The deterioration of the plastic phosphor depends greatly on the method of use in the counters. It is thought that the aging may be prevented by a modification to the polymerization process since this aging is shown to occur in polyvinyl toluene base phosphors and not in polystyrene based phosphors. The performance of scintillation counters with new and aged plastic phosphors is illustrated by differential pulse height distribution in the region of the cosmic ray peak. (N.W.R.)
- Research Organization:
- Univ. Coll. Hospital Medical School, London
- NSA Number:
- NSA-16-014948
- OSTI ID:
- 4793399
- Journal Information:
- J. Sci. Instr., Journal Name: J. Sci. Instr. Vol. Vol: 39
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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