Title :
Performance of CdZnTe coplanar-grid gamma-ray detectors
Author :
Luke, P.N. ; Eissler, E.E.
Author_Institution :
Lawrence Berkeley Nat. Lab., CA, USA
fDate :
6/1/1996 12:00:00 AM
Abstract :
The spectral performance of coplanar grid detectors using currently available CdZnTe materials is examined theoretically and experimentally. Calculated spectral response based on the typical carrier mobility-lifetime products of current CdZnTe materials shows that energy resolution close to the charge-statistics limit can be achieved. Charge transport nonuniformity, which may limit the spectral performance of present detectors, is studied using alpha particle scanning
Keywords :
carrier lifetime; carrier mobility; gamma-ray detection; semiconductor counters; CdZnTe; CdZnTe coplanar-grid gamma-ray detectors; alpha particle; carrier lifetime; carrier mobility; charge transport nonuniformity; charge-statistics limit; coplanar grid detectors; energy resolution; performance; Charge carriers; Crystals; Degradation; Electrodes; Electrons; Energy resolution; Gamma ray detection; Gamma ray detectors; Induction generators; Radiation detectors;
Journal_Title :
Nuclear Science, IEEE Transactions on
