Title :
Mercuric iodide photodetector-cesium iodide scintillator gamma ray spectrometers
Author_Institution :
EG&G Energy Meas. Inc., Goleta, CA, USA
fDate :
2/1/1988 12:00:00 AM
Abstract :
Scintillation spectrometers with mercuric iodide as the photodetector were evaluated for their spectral response to gamma rays in the energy range of 60 keV to 1332 keV. A 137Cs (662-keV) photopeak resolution of better than 5% FWHM was obtained due to the low noise characteristics and high quantum efficiency of the mercuric iodide photodetector. Photopeak broadening due to the scintillator, electronic noise, and statistical noise vs. gamma energy are detailed.
Keywords :
gamma-ray detection and measurement; gamma-ray spectrometers; scintillation counters; semiconductor counters; CsI2; HgI2 phtodetector; broadening; electronic noise; high quantum efficiency; low noise characteristics; scintillator gamma ray spectrometers; statistical noise; Capacitance; Crystals; Detectors; Energy measurement; Energy resolution; Magnetic noise; Optical noise; Photodetectors; Preamplifiers; Spectroscopy;
Journal_Title :
Nuclear Science, IEEE Transactions on
