β Scribed by E.V. Demidova; I.V. Kirpichnikov; A.A. Vasenko
No coin nor oath required. For personal study only.
A simple and quick procedure was proposed for measurements of large coaxial Ge detectors effective volumes. It included a comparison of background spectra collected with several detectors without any shielding in an underground laboratory. Such measurements were performed in Homestake (USA) and Canfranc (Spain) laboratories with several 1 kg and 2 kg detectors. Monte-Carlo calculations confirmed that ratios of numbers of events in continua of the spectra should be either equal or very close to the ratios of the detectors effective volumes.
π SIMILAR VOLUMES
Using the peak efficiencies calculated by the PEAK code for 8 and 18% Ge(Li) detectors, the optimum geometry of large Marinehi-type vessels (5-60 L), under which the peak efficiency has its maximum value, was obtained in the energy region from 365 to 1332 keV. The result showed that the optimum geom