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Title: On-Site Inspection RadioIsotopic Spectroscopy (Osiris) System Development

We have designed and tested hardware and software for the acquisition and analysis of high-resolution gamma-ray spectra during on-site inspections under the Comprehensive Nuclear-Test-Ban Treaty (CTBT). The On-Site Inspection RadioIsotopic Spectroscopy—Osiris—software filters the spectral data to display only radioisotopic information relevant to CTBT on-site inspections, e.g.,132I. A set of over 100 fission-product spectra was employed for Osiris testing. These spectra were measured, where possible, or generated by modeling. The synthetic test spectral compositions include non-nuclear-explosion scenarios, e.g., a severe nuclear reactor accident, and nuclear-explosion scenarios such as a vented underground nuclear test. Comparing its computer-based analyses to expert visual analyses of the test spectra, Osiris correctly identifies CTBT-relevant fission product isotopes at the 95% level or better.The Osiris gamma-ray spectrometer is a mechanically-cooled, battery-powered ORTEC Transpec-100, chosen to avoid the need for liquid nitrogen during on-site inspections. The spectrometer was used successfully during the recent 2014 CTBT Integrated Field Exercise in Jordan. The spectrometer is controlled and the spectral data analyzed by a Panasonic Toughbook notebook computer. To date, software development has been the main focus of the Osiris project. In FY2016-17, we plan to modify the Osiris hardware, integrate the Osiris software and hardware, and conduct rigorous field testsmore » to ensure that the Osiris system will function correctly during CTBT on-site inspections. The planned development will raise Osiris to technology readiness level TRL-8; transfer the Osiris technology to a commercial manufacturer, and demonstrate Osiris to potential CTBT on-site inspectors.« less
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [2] ;  [2] ;  [3]
  1. Idaho National Laboratory, Idaho Falls, ID (United States)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
OSTI Identifier:
1228080
Report Number(s):
INL/EXT--15-35557
TRN: US1600024
DOE Contract Number:
AC07-05ID14517; AC52- 07NA27344; AC05-76RL01830
Resource Type:
Technical Report
Research Org:
Idaho National Laboratory, Idaho Falls, ID (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 98 NUCLEAR DISARMAMENT SAFEGUARDS, AND PHYSICAL PROTECTION; IODINE 132; GAMMA SPECTROMETERS; GAMMA SPECTRA; ON-SITE INSPECTION; FISSION PRODUCTS; CTBT; FIELD TESTS; NUCLEAR EXPLOSIONS; PROGRAMMING; COMPARATIVE EVALUATIONS; UNDERGROUND EXPLOSIONS; REACTOR ACCIDENTS; DESIGN; REACTOR ACCIDENTS; DATA ANALYSIS; DATA ACQUISITION; PERFORMANCE TESTING; ON-LINE MEASUREMENT SYSTEMS Comprehensive Nuclear-Test-Ban Treaty; gamma-ray spectroscopy; data filter; gamma-ray spectral analysis; fission-product spectral analysis