Close-geometry efficiency calibration of p-type HPGe detectors with a Cs-134 point source.
When close-geometry detector calibration is required in gamma-ray spectrometry, single-line emitters are usually used in order to avoid true coincidence summing effects. We managed to overcome this limitation by developing a method for the determination of the efficiency of p-type HPGe detectors in close-geometry with a calibrated Cs-134 point source. No separate determination of coincidence summing correction factors is required and a single measurement furnishes the full-energy-peak efficiencies in the 475-1365 keV energy range.
EC Joint Research Centre Ispra, I-21020 Italy.
P
P
DeFelice
A
A
Fazio
T
T
Vidmar
M
M
Korun
D000465:Algorithms; D002138:Calibration / Q000592:standards; D002588:Cesium Radioisotopes / Q000032:analysis* / Q000592:standards*; D019544:Equipment Failure Analysis / Q000295:instrumentation / Q000379:methods / Q000592:standards; D017408:Guidelines as Topic; D007558:Italy; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods / Q000592:standards*; D012015:Reference Standards; D012016:Reference Values; D015203:Reproducibility of Results; D012666:Semiconductors; D012680:Sensitivity and Specificity; D014159:Transducers
D002588:Cesium Radioisotopes