Title :
Readout characteristics of an imaging plate by fast laser pulses
Author :
Sakasai, K. ; Katagiri, M. ; Kishimoto, M. ; Nakamura, T. ; Toh, K. ; Takahashi, H. ; Nakazawa, M.
Author_Institution :
Adv. Sci. Res. Center, JAERI, Ibaraki, Japan
Abstract :
The readout characteristics of an imaging plate (IP) by fast laser pulses have been studied using an alpha-ray source. The total photostimulated luminescence (PSL) detected with the system was proportional to the alpha-ray irradiation time. It can be used for radiation dose measurement. The accumulated radiation information in the IP is decreased by reading PSL signal with the laser pulses. The PSL decay curve in each frequency is well fitted by a single exponential function. Linear dependency of the decay constant on the repeated frequency of the pulse was observed in a frequency range from 60 kHz to 200 kHz. The readout method with fast laser pulses will be useful for development of novel radiation detection system and investigation of successive repeated readout characteristics and fading effects of the IP
Keywords :
alpha-particle detection; measurement by laser beam; position sensitive particle detectors; 60 to 200 kHz; alpha-ray irradiation time; alpha-ray source; decay curve; fading effects; fast laser pulses; imaging plate; photostimulated luminescence; radiation detection system; radiation dose measurement; readout characteristics; successive repeated readout characteristics; Frequency; High-resolution imaging; Luminescence; Neutrons; Optical pulses; Position sensitive particle detectors; Pulse measurements; Radiation detectors; Semiconductor lasers; Surface emitting lasers;
Conference_Titel :
Nuclear Science Symposium, 1999. Conference Record. 1999 IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5696-9
DOI :
10.1109/NSSMIC.1999.845758
