DocumentCode
787633
Title
Paralleling Planar Ge(Li) Detectors for Counting Large Volume Biological Samples
Author
Saunders, E.W. ; Maxwell, C.J.
Author_Institution
Electronics Engineering Research Division
Volume
15
Issue
1
fYear
1968
Firstpage
423
Lastpage
431
Abstract
Four planar Ge(Li) detectors have been operated in an array, in parallel electrically, and connected to a single preamplifier. The total active volume is 28 cm3. The photopeak efficiency of the four detector array at 1.33 MeV is about 4.8 times greater than the efficiency of one 7 cm3 detector. The resolution is 2.90 keV FWHM at 1.33 MeV and 2.01 keV FWHM at 122 keV. Some misalignment of the individual detector photopeaks is observed, probably caused by contact resistance. A technique which allows alignment of the peaks is presented.
Keywords
Capacitance; Circuit noise; Face detection; Gamma ray detection; Gamma ray detectors; Laboratories; Preamplifiers; Radiation detectors; Sensor arrays; Temperature;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/TNS.1968.4324882
Filename
4324882
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