Pulse height linearity of CdZnTe

Author

Ugorowski, Philip B. ; Kargar, Alireza ; McGregor, Douglas S.

Author_Institution

Kansas State Univ., Manhattan, KS, USA

fYear

2009

fDate

Oct. 24 2009-Nov. 1 2009

Firstpage

2023

Lastpage

2031

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE

Conference_Location

Orlando, FL

ISSN

1095-7863

Print_ISBN

978-1-4244-3961-4

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2009.5402122

Filename

5402122