First experimental measurements with the Segmented Inverted-coaxial GerMAnium (SIGMA) detector

Pearce, Fiona J.; Harkness-Brennan, Laura J.; Alharbi, A.; Boston, Andrew John; Griffiths, O.; Holloway, F.; Judson, Daniel S.; Labiche, M.; Nolan, Paul J.; Page, Robert D.; Radford, David Christopher; Rintoul, Ellis; Simpson, John J.; Unsworth, Carl; Wright, J. P.

doi:10.1016/j.nima.2021.166044

First experimental measurements with the Segmented Inverted-coaxial GerMAnium (SIGMA) detector

Journal Article · Fri Dec 17 00:00:00 EST 2021 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2021.166044· OSTI ID:1901634

^[1]; Harkness-Brennan, Laura J. ^[1]; Alharbi, A. ^[1]; Boston, Andrew John ^[1]; Griffiths, O. ^[1]; Holloway, F. ^[1]; Judson, Daniel S. ^[1]; Labiche, M. ^[2]; Nolan, Paul J. ^[1]; Page, Robert D. ^[1]; Radford, David Christopher ^[3]; ^[1]; Simpson, John J. ^[2]; ^[2]; Wright, J. P. ^[1]

Univ. of Liverpool (United Kingdom)
Science and Technology Facilities Council (STFC), Daresbury (United Kingdom)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

The SIGMA project aims to develop a p-type segmented inverted coaxial point contact germanium detector for gamma-ray tracking and imaging. Here the performance of the first prototype of this type of detector is reported. The measurements performed verified the size and shape of the crystal and determined the location of the complex active volumes of the detector segments. The latter determines the charge collection times that are related to the position of interaction. Good agreement is found between the results and the specified crystal design. The energy resolution of the point contact has been measured to be 0.84 keV and 2.21 keV at 122 keV and 1332 keV, respectively.

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: Science and Technology Facilities Council (STFC); USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1901634

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Journal Issue: 1 Vol. 1027; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (9)

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