Title :
Pulse height linearity of CdZnTe
Author :
Ugorowski, Philip B. ; Kargar, Alireza ; McGregor, Douglas S.
Author_Institution :
Kansas State Univ., Manhattan, KS, USA
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
CdZnTe crystals equipped with Frisch collars are studied at the Semiconductor Materials and Radiological Technologies Laboratory (S.M.A.R.T. Lab) at Kansas State University for use as room-temperature, high-resolution, semiconductor gamma-ray detectors. Obtaining plots of Relative Pulse Height vs. Input Photon Energy by testing with monoenergetic radioactive sources yields widely-spaced data points, but a Compton-scattering two-detector system can generate electrons with a range of energies within the crystal being tested, yielding a continuous curve. The linearity of the resulting curve is a limiting factor for the energy resolution of the semiconductor material.
Keywords :
gamma-ray detection; semiconductor counters; semiconductor materials; CdZnTe crystals; Compton-scattering two-detector system; Frisch collars; continuous curve; energy resolution; input photon energy; monoenergetic radioactive sources; pulse height linearity; relative pulse height; semiconductor gamma-ray detectors; semiconductor material; widely-spaced data points; Detectors; Electrons; Energy resolution; Light scattering; Linearity; Particle scattering; Photonic crystals; System testing; Telephony; Timing;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5402122
