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

F. J. Pearce; L. J. Harkness-Brennan; A. Alharbi; A. J. Boston; O. Griffiths; F. Holloway; D. S. Judson; M. Labiche; P. J. Nolan; R. D. Page; D. C. Radford; E. Rintoul; J. Simpson; C. Unsworth; J. P. Wright

doi:10.1016/j.nima.2021.166044

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

F. J. Pearce, L. J. Harkness-Brennan, A. Alharbi, A. J. Boston, O. Griffiths, F. Holloway, D. S. Judson, M. Labiche, P. J. Nolan, R. D. Page, D. C. Radford, E. Rintoul, J. Simpson, C. Unsworth, J. P. Wright

Physics Division

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3 Scopus citations

Abstract

The SIGMA project aims to develop a p-type segmented inverted coaxial point contact germanium detector for gamma-ray tracking and imaging. 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.

Original language	English
Article number	166044
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	1027
DOIs	https://doi.org/10.1016/j.nima.2021.166044
State	Published - Mar 11 2022

Funding

This research was supported by the United Kingdom Science and Technologies Facilities Council (STFC UK) grant ST/M003582/1 and Mirion Technologies Inc.

Keywords

HPGe
Point contact
γ-ray detection

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10.1016/j.nima.2021.166044

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Pearce, F. J., Harkness-Brennan, L. J., Alharbi, A., Boston, A. J., Griffiths, O., Holloway, F., Judson, D. S., Labiche, M., Nolan, P. J., Page, R. D., Radford, D. C., Rintoul, E., Simpson, J., Unsworth, C., & Wright, J. P. (2022). First experimental measurements with the Segmented Inverted-coaxial GerMAnium (SIGMA) detector. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1027, Article 166044. https://doi.org/10.1016/j.nima.2021.166044

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title = "First experimental measurements with the Segmented Inverted-coaxial GerMAnium (SIGMA) detector",

abstract = "The SIGMA project aims to develop a p-type segmented inverted coaxial point contact germanium detector for gamma-ray tracking and imaging. 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.",

keywords = "HPGe, Point contact, γ-ray detection",

author = "Pearce, {F. J.} and Harkness-Brennan, {L. J.} and A. Alharbi and Boston, {A. J.} and O. Griffiths and F. Holloway and Judson, {D. S.} and M. Labiche and Nolan, {P. J.} and Page, {R. D.} and Radford, {D. C.} and E. Rintoul and J. Simpson and C. Unsworth and Wright, {J. P.}",

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year = "2022",

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day = "11",

doi = "10.1016/j.nima.2021.166044",

language = "English",

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Pearce, FJ, Harkness-Brennan, LJ, Alharbi, A, Boston, AJ, Griffiths, O, Holloway, F, Judson, DS, Labiche, M, Nolan, PJ, Page, RD, Radford, DC, Rintoul, E, Simpson, J, Unsworth, C & Wright, JP 2022, 'First experimental measurements with the Segmented Inverted-coaxial GerMAnium (SIGMA) detector', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 1027, 166044. https://doi.org/10.1016/j.nima.2021.166044

First experimental measurements with the Segmented Inverted-coaxial GerMAnium (SIGMA) detector. / Pearce, F. J.; Harkness-Brennan, L. J.; Alharbi, A. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 1027, 166044, 11.03.2022.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - First experimental measurements with the Segmented Inverted-coaxial GerMAnium (SIGMA) detector

AU - Pearce, F. J.

AU - Harkness-Brennan, L. J.

AU - Alharbi, A.

AU - Boston, A. J.

AU - Griffiths, O.

AU - Holloway, F.

AU - Judson, D. S.

AU - Labiche, M.

AU - Nolan, P. J.

AU - Page, R. D.

AU - Radford, D. C.

AU - Rintoul, E.

AU - Simpson, J.

AU - Unsworth, C.

AU - Wright, J. P.

PY - 2022/3/11

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N2 - The SIGMA project aims to develop a p-type segmented inverted coaxial point contact germanium detector for gamma-ray tracking and imaging. 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.

AB - The SIGMA project aims to develop a p-type segmented inverted coaxial point contact germanium detector for gamma-ray tracking and imaging. 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.

KW - HPGe

KW - Point contact

KW - γ-ray detection

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M1 - 166044

ER -

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

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Keywords

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