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Title: Nuclear Resonance Fluorescence for Material Verification in Dismantlement

Abstract

Nuclear resonance fluorescence (NRF) is a well-established physical process that provides an isotope-specific signature that can be exploited for isotopic detection and characterization of samples. Pacific Northwest National Laboratory has been investigating possible applications of NRF for national security. Of the investigated applications, the verification of material in the dismantlement process is the most promising. Through a combination of benchmarking measurements and radiation transport modeling, we have shown that NRF techniques with existing bremsstrahlung photon sources and a modest detection system can be used to detect highly enriched uranium in the quantities and time limits relevant to the dismantlement process. Issues such as orientation, placement and material geometry do not significantly impact the sensitivity of the technique. We have also investigated how shielding of the uranium would be observed through non-NRF processes to enable the accurate assay of the material. This paper will discuss our findings on how NRF and photon-interrogation techniques may be applied to the material verification in the dismantlement process.

Authors:
;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1048007
Report Number(s):
PNNL-SA-80583
NN2001000; TRN: US1204071
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Conference
Resource Relation:
Conference: Proceedings of the 52nd Annual Meeting of Institute Nuclear Materials Management July 17-21, 2011, Palm Desert, California
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; BREMSSTRAHLUNG; DETECTION; GEOMETRY; HIGHLY ENRICHED URANIUM; NATIONAL SECURITY; NUCLEAR MATERIALS MANAGEMENT; ORIENTATION; PHOTONS; RADIATION TRANSPORT; RESONANCE FLUORESCENCE; SENSITIVITY; SHIELDING; SIMULATION; URANIUM; VERIFICATION; Dismantlement; Nuclear Resonance Fluorescence; NRF; material verification

Citation Formats

Warren, Glen A., and Detwiler, Rebecca S. Nuclear Resonance Fluorescence for Material Verification in Dismantlement. United States: N. p., 2011. Web.
Warren, Glen A., & Detwiler, Rebecca S. Nuclear Resonance Fluorescence for Material Verification in Dismantlement. United States.
Warren, Glen A., and Detwiler, Rebecca S. Sat . "Nuclear Resonance Fluorescence for Material Verification in Dismantlement". United States.
@article{osti_1048007,
title = {Nuclear Resonance Fluorescence for Material Verification in Dismantlement},
author = {Warren, Glen A. and Detwiler, Rebecca S.},
abstractNote = {Nuclear resonance fluorescence (NRF) is a well-established physical process that provides an isotope-specific signature that can be exploited for isotopic detection and characterization of samples. Pacific Northwest National Laboratory has been investigating possible applications of NRF for national security. Of the investigated applications, the verification of material in the dismantlement process is the most promising. Through a combination of benchmarking measurements and radiation transport modeling, we have shown that NRF techniques with existing bremsstrahlung photon sources and a modest detection system can be used to detect highly enriched uranium in the quantities and time limits relevant to the dismantlement process. Issues such as orientation, placement and material geometry do not significantly impact the sensitivity of the technique. We have also investigated how shielding of the uranium would be observed through non-NRF processes to enable the accurate assay of the material. This paper will discuss our findings on how NRF and photon-interrogation techniques may be applied to the material verification in the dismantlement process.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {10}
}

Conference:
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