Depth measurement in a germanium strip detector

We have demonstrated the ability to determine the depth of a gamma-ray interaction point over the full active volume of a thick germanium strip detector. This capability provides depth resolution of less than 0.5-mm full width half maximum (FWHM) at 122 keV in a device 11 mm thick with a 2-mm strip...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2002-08, Vol.49 (4), p.1876-1880
Main Authors: Wulf, E.A., Ampe, J., Johnson, W.N., Kroeger, R.A., Kurfess, J.D., Phlips, B.E.
Format: Article
Language:English
Subjects:
Channels
Charge carrier processes
Depth measurement
Detectors
Devices
Electronic equipment testing
Electronics
Energy resolution
Face detection
Gamma ray detection
Gamma ray detectors
Germanium
Strip
Strips
Telescopes
Time measurement
Timing
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Summary:We have demonstrated the ability to determine the depth of a gamma-ray interaction point over the full active volume of a thick germanium strip detector. This capability provides depth resolution of less than 0.5-mm full width half maximum (FWHM) at 122 keV in a device 11 mm thick with a 2-mm strip pitch. Fifty channels of electronics have been developed and tested with a 25 /spl times/ 25 germanium orthogonal strip detectors. Experiments examining the capabilities of the system and demonstrating a simple Compton telescope using a single detector have been performed.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2002.801526