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Title: Source detection at 100 meter standoff with a time-encoded imaging system

Abstract

Here, we present the design, characterization, and testing of a laboratory prototype radiological search and localization system. The system, based on time-encoded imaging, uses the attenuation signature of neutrons in time, induced by the geometrical layout and motion of the system. We have demonstrated the ability to detect a ~1 mCi 252 Cf radiological source at 100 m standoff with 90% detection efficiency and 10% false positives against background in 12 min. As a result, this same detection efficiency is met at 15 s for a 40 m standoff, and 1.2 s for a 20 m standoff.

Authors:
 [1];  [1];  [1];  [1];  [2];  [3];  [2];  [1];  [1]
  1. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
  2. Sandia National Lab. (SNL-CA), Livermore, CA (United States); Univ. of Michigan, Ann Arbor, MI (United States)
  3. Sandia National Lab. (SNL-CA), Livermore, CA (United States); Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20)
OSTI Identifier:
1406359
Report Number(s):
SAND-2017-10692J
Journal ID: ISSN 0168-9002; PII: S0168900217310227; TRN: US1703262
Grant/Contract Number:
AC04-94AL85000
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: 877; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Fast neutron imaging; Time-encoded imaging; Radiological search instrument

Citation Formats

Brennan, J., Brubaker, E., Gerling, M., Marleau, P., Monterial, M., Nowack, A., Schuster, P., Sturm, B., and Sweany, M. Source detection at 100 meter standoff with a time-encoded imaging system. United States: N. p., 2017. Web. doi:10.1016/j.nima.2017.09.052.
Brennan, J., Brubaker, E., Gerling, M., Marleau, P., Monterial, M., Nowack, A., Schuster, P., Sturm, B., & Sweany, M. Source detection at 100 meter standoff with a time-encoded imaging system. United States. doi:10.1016/j.nima.2017.09.052.
Brennan, J., Brubaker, E., Gerling, M., Marleau, P., Monterial, M., Nowack, A., Schuster, P., Sturm, B., and Sweany, M. Thu . "Source detection at 100 meter standoff with a time-encoded imaging system". United States. doi:10.1016/j.nima.2017.09.052.
@article{osti_1406359,
title = {Source detection at 100 meter standoff with a time-encoded imaging system},
author = {Brennan, J. and Brubaker, E. and Gerling, M. and Marleau, P. and Monterial, M. and Nowack, A. and Schuster, P. and Sturm, B. and Sweany, M.},
abstractNote = {Here, we present the design, characterization, and testing of a laboratory prototype radiological search and localization system. The system, based on time-encoded imaging, uses the attenuation signature of neutrons in time, induced by the geometrical layout and motion of the system. We have demonstrated the ability to detect a ~1 mCi252 Cf radiological source at 100 m standoff with 90% detection efficiency and 10% false positives against background in 12 min. As a result, this same detection efficiency is met at 15 s for a 40 m standoff, and 1.2 s for a 20 m standoff.},
doi = {10.1016/j.nima.2017.09.052},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = ,
volume = 877,
place = {United States},
year = {Thu Sep 28 00:00:00 EDT 2017},
month = {Thu Sep 28 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on September 28, 2018
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