Title :
On radiation damage of scintillating organic fibres in dependence on energetic electron bombardment
Author :
Klose, H.A. ; Krause, M. ; Pfeiffer, W. ; Rauchfuß, J. ; Sinn, G. ; Fink, D. ; Wilhelm, M.
Author_Institution :
Gesellschaft fur Mess- und Systemtech., Berlin, Germany
Abstract :
New experimental results on in-situ observations of degradation of scintillating light yield and on time-compressed ageing and recovery studies of organic blue and green scintillating fibres generated by 16 MeV electron irradiation are reported. Only for low current densities the observed in-situ degradation has a nearly linear decrease. Typical self annealing effects can be characterized by a logarithmic law. Total recovery of optical properties for blue and green scintillators does not occur for energy doses above 10 Mrad and 20 Mrad, respectively
Keywords :
ageing; current density; electron beam annealing; electron beam effects; optical fibre testing; optical fibres; organic compounds; scintillation; 10 Mrad; 16 MeV; 20 Mrad; blue scintillating fibres; blue scintillators; electron irradiation; energetic electron bombardment; green scintillating fibres; green scintillator; in-situ observations; logarithmic law; low current densities; optical properties; radiation damage; recovery studies; scintillating light yield; scintillating organic fibres; self annealing effects; time-compressed ageing; Biological materials; Biomedical materials; Electrons; Optical fiber communication; Particle beams; Radiation detectors; Radioactive materials; Thermal degradation; X-ray detection; X-ray detectors;
Conference_Titel :
Radiation and its Effects on Components and Systems, 1995. RADECS 95., Third European Conference on
Conference_Location :
Arcachon
Print_ISBN :
0-7803-3093-5
DOI :
10.1109/RADECS.1995.509832
