K. Abbas et al., IN-SITU GAMMA-SPECTROSCOPY OF SPENT NUCLEAR-FUEL USING A CDTE DETECTOR, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 383(2-3), 1996, pp. 601-604
Gamma spectroscopy using a room temperature CdTe detector has been car
ried out in the proximity of a spent nuclear fuel rod. In this context
, a compact and transportable monitor, incorporating a planar CdTe cry
stal was constructed and installed inside the beta-gamma hot cell. It
provided effective shielding for the crystal against the intense backg
round. Gamma spectra, with an energy resolution (FWHM) of 7.2 keV at 6
62 keV, were obtained in 600 s counting time, which would allow verifi
cation of the burnup to within 10% and cooling time of the fuel to wit
hin 3% of the declared values by applying specific isotopic correlatio
ns. The good spatial resolution has allowed the use of the monitor as
a gamma scanning device.