DocumentCode
863480
Title
Advantageous Use of New Dual Rectangular Photomultiplier Tube for Positron CT
Author
Uchida, H. ; Yamashita, Y. ; Yamashita, T. ; Hayashi, T.
Author_Institution
Hamamatsu TV Co., Ltd. 1126-1 Ichino-cho Hamamatsu City, Japan
Volume
30
Issue
1
fYear
1983
Firstpage
451
Lastpage
454
Abstract
A new dual rectangular photomultiplier tube (PMT) developed for the positron CT is discussed in comparison with the conventional small-diameter PMT. A matching in shape between the scintillator and the PMT is an important factor to obtain good time resolution. The new PMTs have coincidence time resolution less than 3 ns in FWHM coupled to 12 mm (wide) x 24 mm (high) x 24 mm (long) BGO scintillators for 511 keV annihilation ¿-rays while resolution of the conventional small-diameter PMTs is around 5 ns in FWHM.
Keywords
Cities and towns; Fresnel reflection; Optical coupling; Optical reflection; Photomultipliers; Positrons; Pulse measurements; Spatial resolution; TV; Timing;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/TNS.1983.4332309
Filename
4332309
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