A new compact position-sensitive PMT for scintillation detectors

Journal Article · Tue Jun 01 04:00:00 EDT 1999 · IEEE Transactions on Nuclear Science

DOI:https://doi.org/10.1109/23.775543· OSTI ID:679583

Nagai, S; Shimoi, H; Yoshizawa, Y ^[1]; Watanabe, M ^[2]; Liu, H ^[3]

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1. Hamamatsu Photonics K.K., Toyooka (Japan). Electron Tube Center
2. Hamamatsu Photonics K.K., Hirakuchi (Japan). Central Research Lab.
3. Zhejiang Univ. (China). State Key Lab. of Modern Optical Instrumentation

A new compact position-sensitive photomultiplier tube (PS-PMT), Hamamatsu R7600-C12, has been developed for scintillation detectors. The PS-PMT has 11 stages of metal channel dynodes and 6(X) + 6(Y) crossed plate anodes in a 25.7 mm square x 20 mm high metal can package, where the photo-sensitive area is 22 mm square. The performance of the PS-PMT was evaluated in terms of applicability to radiation imaging systems. In comparison with the former type of PS-PMT (Hamamatsu R5900-C8), the new PS-PMT provides smaller light spread and better position response. Also, by removing the flange at the bottom of the PS-PMT, the ratio of the effective area to the outward area is increased. The spatial resolution capability was demonstrated by imaging a stratified LSO array having an element of 1.8 mm x 1.8 mm x 10 mm. Each crystal element is clearly identified on the image map with 662 keV uniform gamma-ray irradiation. This paper describes the characteristics of the new PS-PMT and the experimental results for a gamma-ray imaging detector.

• OSTI ID: 679583
• Report Number(s): CONF-981110--
• Journal Information: IEEE Transactions on Nuclear Science, Journal Name: IEEE Transactions on Nuclear Science Journal Issue: 3Pt1 Vol. 46; ISSN 0018-9499; ISSN IETNAE
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
DESIGN
GAMMA DETECTION
PERFORMANCE
PHOTOMULTIPLIERS
POSITION SENSITIVE DETECTORS
SCINTILLATION COUNTERS