Characteristics of GRIFFIN high-purity germanium clover detectors

U. Rizwan; A. B. Garnsworthy; C. Andreoiu; G. C. Ball; A. Chester; T. Domingo; R. Dunlop; G. Hackman; E. T. Rand; J. K. Smith; K. Starosta; C. E. Svensson; P. Voss; J. Williams

arXiv · 1711.05287

Characteristics of GRIFFIN high-purity germanium clover detectors

U. Rizwan·A. B. Garnsworthy·C. Andreoiu·G. C. Ball·A. Chester·T. Domingo·R. Dunlop·G. Hackman·E. T. Rand·J. K. Smith·K. Starosta·C. E. Svensson·P. Voss·J. Williams

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Abstract

The Gamma-Ray Infrastructure For Fundamental Investigations of Nuclei, GRIFFIN, is a new experimental facility for radioactive decay studies at the TRIUMF-ISAC laboratory. The performance of the 16 high-purity germanium (HPGe) clover detectors that will make up the GRIFFIN spectrometer is reported. The energy resolution, efficiency, timing resolution, crosstalk and preamplifier properties of each crystal were measured using a combination of analogue and digital data acquisition techniques. The absolute efficiency and add-back factors are determined for the energy range of 80 - 3450 keV. The detectors show excellent performance with an average over all 64 crystals of a FWHM energy resolution of 1.89(6) keV and relative efficiency with respect to a 3"x3" NaI detector of 41(1)% at 1.3 MeV.

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U. Rizwan, A. B. Garnsworthy, C. Andreoiu, G. C. Ball, A. Chester, T. Domingo, R. Dunlop, G. Hackman, E. T. Rand, J. K. Smith, K. Starosta, C. E. Svensson, P. Voss, J. Williams. 2017-11-14. Characteristics of GRIFFIN high-purity germanium clover detectors. https://arxiv.org/abs/1711.05287

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