On-Site Inspection RadioIsotopic Spectroscopy (Osiris) System-Integration and Field-Testing Report

Technical Report · Mon Oct 01 00:00:00 EDT 2018

DOI:https://doi.org/10.2172/1483259· OSTI ID:1483259

Caffrey, A. J.  ^[1]; Wimer, N. G. ^[2]; Milbrath, B. D. ^[3]; Warren, G. A. ^[3]; Zalavadia, M. A. ^[3]; Krebs, Kenneth M. ^[1]; Wharton, C. J.  ^[1]

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1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

We have designed a system 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 —gamma-ray spectrometer is a mechanically-cooled, battery-powered ORTEC IDM-200V, chosen to avoid the need for liquid nitrogen during on-site inspections. The spectrometer is controlled and the spectral data analyzed by a Panasonic Toughbook notebook computer. Spectral data analysis is similar to that performed by traditional gamma-ray spectrometers, except the OSIRIS gamma-ray spectral data are filtered to display only radioisotopic information relevant to CTBT on-site inspections, for example, the fission-product isotope Zr-95 and its daughter isotope Nb-95. The OSIRIS software assists the user during operation with software checklists for startup and shutdown, and menu-selected display windows during energy calibration and data acquisition. OSIRIS can be operated in either sample-counting mode or the in-situ mode. In this report, the extensive system-integration tests of the OSIRIS system carried out in 2015-2017 are described, including tests at Idaho National Laboratory, at the Nevada National Security Site (formerly, the Nevada Test Site), and at Pacific Northwest National Laboratory in Richland, Washington. We also note recent software enhancements and the steps to our successful commercialization of OSIRIS.

• Research Organization: Idaho National Lab. (INL), Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: AC07-05ID14517
• OSTI ID: 1483259
• Report Number(s): INL/EXT-18-51409-Rev000
• Country of Publication: United States
• Language: English

Related Subjects

98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Comprehensive Nuclear-Test-Ban Treaty
CTBT
On-Site Inspection
Fission-Product Gamma-Ray Spectroscopy
Automated Analysis of Gamma-Ray Spectra