Efficiency stability of HPGe detectors under distinct count rates
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2019
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INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
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Resumo
In this work the reproducibility of the e ciency of di erent HPGe detectors was analyzed under a series
of di erent conditions. The detectors studied were plugged either to a regular analogical ampli er or
to a digital signal processing (DSP) device, in order to evaluate the possible di erences between either
setup. Detectors were inspected by performing a long series of sequential measurements with standard
calibration sources, and comparing the standard deviation of the number of counts per second in each
series to the uncertainty of the individual measurements. Detectors were also subjected to distinct count
rates, in order to verify the possible experimental issues associated with this parameter. The results allow
a discussion on the stability of the detectors' e ciencies over a few days, the possible dependence with
the count rate, and the estimation of the uncertainty related to the e ciency variation.
Como referenciar
ZAHN, GUILHERME S.; GENEZINI, FREDERICO A. Efficiency stability of HPGe detectors under distinct count rates. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 21-25, 2019, Santos, SP. Proceedings... Rio de Janeiro: Associação Brasileira de Energia Nuclear, 2019. p. 1092-1096. Disponível em: http://repositorio.ipen.br/handle/123456789/30547. Acesso em: 30 Dec 2025.
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