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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. 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.

Authors:
ORCiD logo [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [1];  [1];  [3]; ORCiD logo [1];  [2]; ORCiD logo [2];  [1]
+ Show Author Affiliations
  1. Univ. of Liverpool (United Kingdom)
  2. Science and Technology Facilities Council (STFC), Daresbury (United Kingdom)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE; Science and Technology Facilities Council (STFC)
OSTI Identifier:
1901634
Grant/Contract Number:  
AC05-00OR22725; ST/M003582/1
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 1027; Journal Issue: 1; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; HPGe; point contact; gamma-ray detection

Citation Formats

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, and Wright, J. P. First experimental measurements with the Segmented Inverted-coaxial GerMAnium (SIGMA) detector. United States: N. p., 2021. Web. doi:10.1016/j.nima.2021.166044.
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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. First experimental measurements with the Segmented Inverted-coaxial GerMAnium (SIGMA) detector. United States. https://doi.org/10.1016/j.nima.2021.166044
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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, and Wright, J. P. Fri . "First experimental measurements with the Segmented Inverted-coaxial GerMAnium (SIGMA) detector". United States. https://doi.org/10.1016/j.nima.2021.166044. https://www.osti.gov/servlets/purl/1901634.
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@article{osti_1901634,
title = {First experimental measurements with the Segmented Inverted-coaxial GerMAnium (SIGMA) detector},
author = {Pearce, Fiona J. and Harkness-Brennan, Laura J. and Alharbi, A. and Boston, Andrew John and Griffiths, O. and Holloway, F. and Judson, Daniel S. and Labiche, M. and Nolan, Paul J. and Page, Robert D. and Radford, David Christopher and Rintoul, Ellis and Simpson, John J. and Unsworth, Carl and Wright, J. P.},
abstractNote = {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.},
doi = {10.1016/j.nima.2021.166044},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = 1,
volume = 1027,
place = {United States},
year = {Fri Dec 17 00:00:00 EST 2021},
month = {Fri Dec 17 00:00:00 EST 2021}
}
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https://doi.org/10.1016/j.nima.2021.166044
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Works referenced in this record:

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AGATA—Advanced GAmma Tracking Array
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