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Title: Position resolution simulations for the inverted-coaxial germanium detector, SIGMA

Abstract

The SIGMA Germanium detector has the potential to revolutionise γ-ray spectroscopy, providing superior energy and position resolving capabilities compared with current large volume state-of-the-art Germanium detectors. The theoretical position resolution of the detector as a function of γ-ray interaction position has been studied using simulated detector signals. A study of the effects of RMS noise at various energies has been presented with the position resolution ranging from 0.33 mm FWHM at Eγ = 1, to 0.41 mm at Eγ = 150 keV. Here, an additional investigation into the effects pulse alignment have on pulse shape analysis and in turn, position resolution has been performed. The theoretical performance of SIGMA operating in an experimental setting is presented for use as a standalone detector and as part of an ancillary system.

Authors:
 [1];  [1];  [1];  [1];  [2];  [1];  [1];  [1]; ORCiD logo [3];  [2];  [1]
  1. Univ. of Liverpool, Liverpool (United Kingdom)
  2. Daresbury Lab., Warrington (United Kingdom)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1482454
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 892; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Point contact germanium detector; γ-ray imaging; γ-ray tracking; Position sensitivity; Pulse shape analysis

Citation Formats

Wright, Jonathan P., Harkness-Brennan, L. J., Boston, A. J., Judson, D. S., Labiche, M., Nolan, P. J., Page, R. D., Pearce, F., Radford, David C., Simpson, J., and Unsworth, C.. Position resolution simulations for the inverted-coaxial germanium detector, SIGMA. United States: N. p., 2018. Web. doi:10.1016/j.nima.2018.02.106.
Wright, Jonathan P., Harkness-Brennan, L. J., Boston, A. J., Judson, D. S., Labiche, M., Nolan, P. J., Page, R. D., Pearce, F., Radford, David C., Simpson, J., & Unsworth, C.. Position resolution simulations for the inverted-coaxial germanium detector, SIGMA. United States. doi:10.1016/j.nima.2018.02.106.
Wright, Jonathan P., Harkness-Brennan, L. J., Boston, A. J., Judson, D. S., Labiche, M., Nolan, P. J., Page, R. D., Pearce, F., Radford, David C., Simpson, J., and Unsworth, C.. Wed . "Position resolution simulations for the inverted-coaxial germanium detector, SIGMA". United States. doi:10.1016/j.nima.2018.02.106.
@article{osti_1482454,
title = {Position resolution simulations for the inverted-coaxial germanium detector, SIGMA},
author = {Wright, Jonathan P. and Harkness-Brennan, L. J. and Boston, A. J. and Judson, D. S. and Labiche, M. and Nolan, P. J. and Page, R. D. and Pearce, F. and Radford, David C. and Simpson, J. and Unsworth, C.},
abstractNote = {The SIGMA Germanium detector has the potential to revolutionise γ-ray spectroscopy, providing superior energy and position resolving capabilities compared with current large volume state-of-the-art Germanium detectors. The theoretical position resolution of the detector as a function of γ-ray interaction position has been studied using simulated detector signals. A study of the effects of RMS noise at various energies has been presented with the position resolution ranging from 0.33 mm FWHM at Eγ = 1, to 0.41 mm at Eγ = 150 keV. Here, an additional investigation into the effects pulse alignment have on pulse shape analysis and in turn, position resolution has been performed. The theoretical performance of SIGMA operating in an experimental setting is presented for use as a standalone detector and as part of an ancillary system.},
doi = {10.1016/j.nima.2018.02.106},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 892,
place = {United States},
year = {Wed Mar 07 00:00:00 EST 2018},
month = {Wed Mar 07 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on March 7, 2019
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