Performance of a whole-body counter with five high-purity germanium detectors.
A germanium (Ge) detector system has been installed in a whole-body counting facility at NIRS (Japan). The system employs five detectors that have relative efficiencies of more than 80%. A basic performance of the Ge detectors was tested and compared with that of the former NaI(Tl) detector system. Although the Ge detector system has advantages of improved radionuclide identification capability and MDA values, it also has disadvantages of high operation costs and demanding maintenance such as supply of liquid nitrogen.
Ishikawa
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Radon Research Group, National Institute of Radiological Sciences, Inage-ku, Chiba 263-8555, Japan. tetsuo_i@nirs.go.jp
D001822:Body Burden; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005720:Gamma Rays; D005857:Germanium / Q000528:radiation effects*; D011829:Radiation Dosage; D011868:Radioisotopes / Q000032:analysis*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014159:Transducers; D014915:Whole-Body Counting / Q000295:instrumentation*
D011868:Radioisotopes; D005857:Germanium