Title :
The CSPD-1 γ-ray vision system
Author :
He, Z. ; Obermark, J. ; Du, J. ; Wehe, D.K. ; Lee, S.W. ; Knoll, G.F.
Author_Institution :
Dept. of Nucl. Eng., Michigan Univ., Ann Arbor, MI, USA
fDate :
6/1/1996 12:00:00 AM
Abstract :
The CSPD-1 γ-ray vision system has been constructed for the energy range from 100 keV up to a few MeV, which encompasses most energies of γ-ray radiation from the radioactive nuclides of interest to nuclear facilities. The angular resolution of the system can be varied from about 7° down to 3° FWHM. The energy resolution at 662 keV is 0.8% or 8.9% FWHM depending on which of the two detectors are used. The detected spatial distribution of γ-rays is overlayed with the video image taken from a small CCD camera mounted on the side of the collimator. This enables immediate localization of the radioactive area. Some results obtained at the Molten Salt Reactor Experiment (MSRE) at the Oak Ridge National Laboratory (ORNL) are reported, and recommended improvements are discussed
Keywords :
CCD image sensors; gamma-ray detection; radiation monitoring; solid scintillation detectors; video cameras; 662 keV; CCD camera; CSPD-1 γ-ray vision system; CsI(Tl) scintillator; CsI:Tl; MSRE; Molten Salt Reactor Experiment; angular resolution; collimator; energy resolution; nuclear facilities; radioactive area localization; spatial distribution; video image; Charge coupled devices; Charge-coupled image sensors; Collimators; Energy resolution; Gamma ray detection; Gamma ray detectors; Inductors; Laboratories; Machine vision; Spatial resolution;
Journal_Title :
Nuclear Science, IEEE Transactions on
