Performance of a thick silicon polarimeter

We have constructed and tested gamma-ray polarimeters from layers of 2 mm thick double-sided silicon strip detectors. The first test polarimeter consists of 2 layers of 64times64 strip detectors with a 0.891 mm strip pitch. The device was tested using 122 keV gamma-rays polarized by Compton scatteri...

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Bibliographic Details
Main Authors: Nelson, S.O., Phlips, B.F., Wulf, E.A., Kurfess, J.D., Novikova, E.I.
Format: Conference Proceeding
Language:English
Subjects:
Decision support systems
Energy resolution
Gas detectors
Laboratories
Polarization
Scattering
Silicon
Strips
Telephony
Testing
Online Access:Request full text
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Summary:We have constructed and tested gamma-ray polarimeters from layers of 2 mm thick double-sided silicon strip detectors. The first test polarimeter consists of 2 layers of 64times64 strip detectors with a 0.891 mm strip pitch. The device was tested using 122 keV gamma-rays polarized by Compton scattering near 90deg in a 30times5 strip silicon detector. Data from a higher-energy experiment using gamma-rays from a 60 Co source scattered by a 3.5 cm times 5 cm times 1 cm lead block and a single 64times64 strip Si detector was taken to test higher-energy polarimetry and allow direct background measurement. A detailed GEANT4 simulation for the low-energy polarimeter experiment has also been performed.
ISSN:1082-3654
2577-0829
DOI:10.1109/NSSMIC.2004.1462629