On the invariability of the total-to-peak ratio in gamma-ray spectrometry.
It is demonstrated that the assumption on the independence of the total-to-peak ratio of the source position in gamma-ray spectrometry holds for coaxial detectors with sufficient accuracy to make it applicable to the determination of the full energy peak efficiencies in environmental measurements via the so-called efficiency transfer method. The calculations show that for planar detectors the assumption breaks down at higher gamma-ray energies and that for such detectors the use of the efficiency transfer method is only warranted for gamma-ray energies up to 200 keV.
Vidmar
Tim
T
Jozef Stefan Institute, Jamova 39, P.O. Box 3000, SI-1001 Ljubljana, Slovenia. tim.vidmar@ijs.si
Likar
Andrej
A
D002138:Calibration; D004735:Energy Transfer; D019544:Equipment Failure Analysis / Q000379:methods*; D005857:Germanium / Q000528:radiation effects*; D015233:Models, Statistical; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013051:Spectrometry, Gamma / Q000295:instrumentation* / Q000379:methods*; D013269:Stochastic Processes; D014159:Transducers
D005857:Germanium