Title :
Characterization of pixellated thallium bromide radiation detectors for gamma-ray spectroscopy
Author :
Nowicki, Suzanne ; Dönmez, Burçin ; Anderson, Stephen ; He, Zhong ; Shah, Kanai ; Cirignano, Leonard ; Kim, Hadong
Author_Institution :
Nuclear Engineering and Radiological Sciences Department, University of Michigan, Ann Arbor, 48105 USA
Abstract :
TlBr is an attractive material for gamma-ray detectors due to its high density (7.56 g/cm3) and high atomic number (Tl:81, Br:35). In the present work, three TlBr detectors provided by Radiation Monitoring Devices, Inc. have been investigated. Energy resolution of 2.4 % FWHM at 662 keV at room temperature was achieved after depth correction. The depth sensing method uses the cathode to anode (C/A) signal ratio and demonstrates that the detector is fully active from the cathode to the anode surface. Electron transport properties in TlBr detectors have been investigated and show the mobility of the electrons to be 30 cm2/V.s.
Keywords :
Anodes; Atomic measurements; Cathodes; Electron mobility; Energy resolution; Gamma ray detectors; Radiation detectors; Radiation monitoring; Spectroscopy; Temperature sensors; TlBr; pixellated; room-temperature; semi-conductor detector;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2008. NSS '08. IEEE
Conference_Location :
Dresden, Germany
Print_ISBN :
978-1-4244-2714-7
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2008.4775178
