Development of scintillation-light-transmission type phoswich detector for simultaneous alpha- and beta (gamma)-ray counting

• Published in: 1999 IEEE Nuclear Science Symposium. Conference Record. 1999 Nuclear Science Symposium and Medical Imaging Conference (Cat. No.99CH37019) Vol. 2; pp. 696 - 699 vol.2
• Main Authors: Yasuda, K., Usuda, S., Gunji, H.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 1999
• Subjects: Gamma ray detection; Gamma ray detectors; Monitoring; Optical fibers; Optical pulse shaping; Optical pulses; Photomultipliers; Probes; Pulse measurements; Solid scintillation detectors
• ISBN: 9780780356962; 0780356969
• ISSN: 1082-3654; 2577-0829
• DOI: 10.1109/NSSMIC.1999.845763

A new type of scintillation-light-transmission ZnS(Ag)/NE102A phoswich detector has been developed, in which scintillation light emitted from the phoswich is transmitted through an optical fiber to a photomultiplier tube. By adjusting wavelength of the scintillation light to transmittance region of the optical fiber, the phoswich detector was capable of successfully performing simultaneous counting of alpha- and beta (including gamma)-rays. In addition, the detector has been applied to a dip-type inline monitor, which directly contacts with actinide solution. The detector will be available especially in a narrow and/or isolated space such as glove box and hot cell.