Influence of temperature treatment on radiation stability of plastic scintillator and wave-length shifter

Author

Bicken, B. ; Dannemann, A. ; Holm, U. ; Neumann, Th ; Wick, E.

Author_Institution

Inst. fuer Experiementalphys., Hamburg Univ., Germany

Volume

39

Issue

5

fYear

1992

fDate

10/1/1992 12:00:00 AM

Firstpage

1212

Lastpage

1216

Abstract

The influence of temperature treatment before or after irradiation on the radiation damage of plastic scintillators and wavelength shifters was measured. The influence of temperature treatment on the radiation stability before or after irradiation was investigated. The polymethyl-methacrylate (PMMA)-based wavelength shifters showed strong recovery in argon with heating after irradiation, whereas the polystyrene-based scintillator SCSN-38 in air suffered with heating before and with heating after irradiation. UV absorbants added to the wavelength shifter material Y-7 in PMMA were responsible for additional radiation damage in the scintillator/wavelength shifter system SCSN-38/Y-7 if its cutoff wavelengths were higher than 360 nm

Keywords

radiation effects; scintillation counters; PMMA; UV absorbants; Y-7; air; heating; plastic scintillator; polymethyl-methacrylate; polystyrene-based scintillator SCSN-38; radiation damage; radiation stability; temperature treatment; wave-length shifter; Absorption; Argon; Gases; Heat recovery; Heating; Machining; Plastics; Production; Stability; Temperature;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.173180

Filename

173180