The CSPD - 1 y - Ray Vision System
نویسندگان
چکیده
The CSPD-1 y-ray vision system has been constructed for the energy range from 100 keV up to a few MeV, which encompasses most energies of y-ray radiation from the radioactive nuclides of interest t o 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 6.8% or 8.9% FWHM depending on which of the two detectors are used. The detected spatial distribution of y-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) a t the Oak Ridge National Laboratory (ORNL) are reported, and recommended improvements are discussed.
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