Conference paper
Charge collection and depth sensing investigation on CZT drift strip detectors
CZT drift strip detectors with Planar Transverse Field (PTF) configuration are suitable for high energy astrophysics instrumentation, where high efficiency, high energy and position resolution are required from the sensors. We report on experimental investigations on the DTU Space developed CZT drift detector operated in PTF configuration with the purpose of demonstrating that the good energy resolution of the CZT drift detector can be combined with the high efficiency of the PTF configuration.
A CZT drift strip detector (10 mm x 10 mm x 2.5 mm) was characterized in PTF configuration at European Synchrotron Radiation Facility (ESRF) using ID 15A beam with its very fine collimations (beam spot size typically of 50μm and energies up to 500 keV). The depth resolution is measured to be 100μm FWHM @150keV and 200μm FWHM@500keV.
These are well agree with the theoretical values. With these measurements, we demonstrated to achieve high efficiency due to large effective thickness, high energy resolution due to small electron drift lengths and sub mm position resolution using depth information using CZT drift strip detectors with N+1 readout channels in PTF configuration.
Language: | English |
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Publisher: | IEEE |
Year: | 2010 |
Pages: | 3880-3884 |
Proceedings: | Nuclear Science Symposium Conference |
ISBN: | 1424491045 , 1424491053 , 1424491061 , 9781424491049 , 9781424491056 and 9781424491063 |
ISSN: | 25770829 , 10823654 and 10957863 |
Types: | Conference paper |
DOI: | 10.1109/NSSMIC.2010.5874541 |
ORCIDs: | Kuvvetli, Irfan and Budtz-Jørgensen, Carl |
CZT drift strip detectors Compound semiconductors Depth sensing Gamma-ray detection High energy astrophysics instrumentation X-ray detection
Anodes DTU space Detectors Energy measurement Energy resolution ID 15A beam N+1 readout channels Signal resolution Strips beam spot size charge collection depth information depth resolution depth sensing high energy astrophysics instrumentation high energy resolution nuclear electronics planar transverse field configuration readout electronics semiconductor counters small electron drift lengths submm position resolution