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Title: Issues Involving The OSI Concept of Operation For Noble Gas Radionuclide Detection

Abstract

The development of a technically sound protocol for detecting the subsurface release of noble gas radionuclides is critical to the successful operation of an on site inspection (OSI) under the CTBT and has broad ramifications for all aspects of the OSI regime including the setting of specifications for both sampling and analysis equipment used during an OSI. With NA-24 support, we are investigating a variety of issues and concerns that have significant bearing on policy development and technical guidance regarding the detection of noble gases and the creation of a technically justifiable OSI concept of operation. The work at LLNL focuses on optimizing the ability to capture radioactive noble gases subject to the constraints of possible OSI scenarios. This focus results from recognizing the difficulty of detecting gas releases in geologic environments - a lesson we learned previously from the LLNL Non-Proliferation Experiment (NPE). Evaluation of a number of important noble gas detection issues, potentially affecting OSI policy, has awaited the US re-engagement with the OSI technical community. Thus, there have been numerous issues to address during the past 18 months. Most of our evaluations of a sampling or transport issue necessarily involve computer simulations. This is partly due tomore » the lack of OSI-relevant field data, such as that provided by the NPE, and partly a result of the ability of LLNL computer-based models to test a range of geologic and atmospheric scenarios far beyond what could ever be studied in the field making this approach very highly cost effective. We review some highlights of the transport and sampling issues we have investigated during the past year. We complete the discussion of these issues with a description of a preliminary design for subsurface sampling that is intended to be a practical solution to most if not all the challenges addressed here.« less

Authors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1016941
Report Number(s):
LLNL-TR-467731
TRN: US201113%%362
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
98 NUCLEAR DISARMAMENT, SAFEGUARDS AND PHYSICAL PROTECTION; 54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES; BEARINGS; COMPUTERIZED SIMULATION; CTBT; DESIGN; DETECTION; EVALUATION; LAWRENCE LIVERMORE NATIONAL LABORATORY; ON-SITE INSPECTION; PROLIFERATION; RADIOISOTOPES; RARE GASES; SAMPLING; SPECIFICATIONS; TRANSPORT

Citation Formats

Carrigan, C R, and Sun, Y. Issues Involving The OSI Concept of Operation For Noble Gas Radionuclide Detection. United States: N. p., 2011. Web. doi:10.2172/1016941.
Carrigan, C R, & Sun, Y. Issues Involving The OSI Concept of Operation For Noble Gas Radionuclide Detection. United States. doi:10.2172/1016941.
Carrigan, C R, and Sun, Y. Fri . "Issues Involving The OSI Concept of Operation For Noble Gas Radionuclide Detection". United States. doi:10.2172/1016941. https://www.osti.gov/servlets/purl/1016941.
@article{osti_1016941,
title = {Issues Involving The OSI Concept of Operation For Noble Gas Radionuclide Detection},
author = {Carrigan, C R and Sun, Y},
abstractNote = {The development of a technically sound protocol for detecting the subsurface release of noble gas radionuclides is critical to the successful operation of an on site inspection (OSI) under the CTBT and has broad ramifications for all aspects of the OSI regime including the setting of specifications for both sampling and analysis equipment used during an OSI. With NA-24 support, we are investigating a variety of issues and concerns that have significant bearing on policy development and technical guidance regarding the detection of noble gases and the creation of a technically justifiable OSI concept of operation. The work at LLNL focuses on optimizing the ability to capture radioactive noble gases subject to the constraints of possible OSI scenarios. This focus results from recognizing the difficulty of detecting gas releases in geologic environments - a lesson we learned previously from the LLNL Non-Proliferation Experiment (NPE). Evaluation of a number of important noble gas detection issues, potentially affecting OSI policy, has awaited the US re-engagement with the OSI technical community. Thus, there have been numerous issues to address during the past 18 months. Most of our evaluations of a sampling or transport issue necessarily involve computer simulations. This is partly due to the lack of OSI-relevant field data, such as that provided by the NPE, and partly a result of the ability of LLNL computer-based models to test a range of geologic and atmospheric scenarios far beyond what could ever be studied in the field making this approach very highly cost effective. We review some highlights of the transport and sampling issues we have investigated during the past year. We complete the discussion of these issues with a description of a preliminary design for subsurface sampling that is intended to be a practical solution to most if not all the challenges addressed here.},
doi = {10.2172/1016941},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 21 00:00:00 EST 2011},
month = {Fri Jan 21 00:00:00 EST 2011}
}

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