A Directional Detector Response Function for Anisotropic Detectors
Abstract
For a radiation detector that is not isotropic, a directional detector response is needed to accurately account for the variation in a detector’s behavior depending on the incoming particle direction. The concept of the detector response function has been extended to include particle direction using a set of pregenerated detector responses based on the orientation of the incoming radiation and the detector. This directional detector response function (DDRF) then can be applied to the flux and current tallies computed by a Monte Carlo simulation. Validation of the new approach has been done by comparing simulated count rates processed with the DDRF to measured count rates taken with a 5.08 × 10.16 × 40.64-cm NaI(Tl) detector. The comparisons show that the applied method produces good agreement with both background and source measurements with a 137Cs source. Furthermore, separation of the detector response generation from Monte Carlo particle transport calculations provides greater flexibility in locating single or multiple detectors without any interference in the model and also enables simulation of various models using the same detector response without the need for generating additional detector responses if the same detector is being used.
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1545218
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Science and Engineering
- Additional Journal Information:
- Journal Volume: 193; Journal Issue: 12; Journal ID: ISSN 0029-5639
- Publisher:
- American Nuclear Society - Taylor & Francis
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 42 ENGINEERING; 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
Citation Formats
Celik, Cihangir, Peplow, Douglas E., Davidson, Gregory G., and Swinney, Mathew W. A Directional Detector Response Function for Anisotropic Detectors. United States: N. p., 2019.
Web. doi:10.1080/00295639.2019.1631028.
Celik, Cihangir, Peplow, Douglas E., Davidson, Gregory G., & Swinney, Mathew W. A Directional Detector Response Function for Anisotropic Detectors. United States. https://doi.org/10.1080/00295639.2019.1631028
Celik, Cihangir, Peplow, Douglas E., Davidson, Gregory G., and Swinney, Mathew W. Fri .
"A Directional Detector Response Function for Anisotropic Detectors". United States. https://doi.org/10.1080/00295639.2019.1631028. https://www.osti.gov/servlets/purl/1545218.
@article{osti_1545218,
title = {A Directional Detector Response Function for Anisotropic Detectors},
author = {Celik, Cihangir and Peplow, Douglas E. and Davidson, Gregory G. and Swinney, Mathew W.},
abstractNote = {For a radiation detector that is not isotropic, a directional detector response is needed to accurately account for the variation in a detector’s behavior depending on the incoming particle direction. The concept of the detector response function has been extended to include particle direction using a set of pregenerated detector responses based on the orientation of the incoming radiation and the detector. This directional detector response function (DDRF) then can be applied to the flux and current tallies computed by a Monte Carlo simulation. Validation of the new approach has been done by comparing simulated count rates processed with the DDRF to measured count rates taken with a 5.08 × 10.16 × 40.64-cm NaI(Tl) detector. The comparisons show that the applied method produces good agreement with both background and source measurements with a 137Cs source. Furthermore, separation of the detector response generation from Monte Carlo particle transport calculations provides greater flexibility in locating single or multiple detectors without any interference in the model and also enables simulation of various models using the same detector response without the need for generating additional detector responses if the same detector is being used.},
doi = {10.1080/00295639.2019.1631028},
journal = {Nuclear Science and Engineering},
number = 12,
volume = 193,
place = {United States},
year = {2019},
month = {7}
}
Search WorldCat to find libraries that may hold this journalFigures / Tables:
Fig. 1: Quadrature set used for DDRF database generation: (a) quadrature locations and (b) sampling with particles striking the detector along three quadrature directions—Q1, Q10, and Q13.
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Figures / Tables found in this record: