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Title: Verification of Uranium Mass and Enrichments of Highly Enriched Uranium (HEU) Using the Nuclear Materials Identification System (NMIS)

Abstract

This paper describes how the Nuclear Materials Identification System (NMIS), developed by the Oak Ridge National Laboratory (ORNL) and the Oak Ridge Y-12 Plant, was used to verify the mass and enrichment of hundreds of Highly Enriched Uranium (HEU) metal items in storage at the Y-12 Plant. The verifications had a relative spread of {+-}5% (3 sigma) with relative mean deviations from their declared values of +0.2% for mass and {minus}0.2% for enrichment. NMIS's capability to perform quantification of HEU enabled the Y-12 Plant to meet their nuclear material control and accountability (NMC and A) requirements. These verifications were performed in the storage vault in a very time and cost effective manner with as many as 55 verifications in one shift of operation.

Authors:
; ; ;
Publication Date:
Research Org.:
Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Defense Programs (DP) (US)
OSTI Identifier:
754364
Report Number(s):
Y/LB-16,056
TRN: US0005255
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 7 Apr 2000
Country of Publication:
United States
Language:
English
Subject:
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; HIGHLY ENRICHED URANIUM; IDENTIFICATION SYSTEMS; MASS; NUCLEAR MATERIALS MANAGEMENT; VERIFICATION; STORAGE FACILITIES

Citation Formats

Chiang, L G, Mattingly, J K, Ramsey, J A, and Mihalczo, J T. Verification of Uranium Mass and Enrichments of Highly Enriched Uranium (HEU) Using the Nuclear Materials Identification System (NMIS). United States: N. p., 2000. Web. doi:10.2172/754364.
Chiang, L G, Mattingly, J K, Ramsey, J A, & Mihalczo, J T. Verification of Uranium Mass and Enrichments of Highly Enriched Uranium (HEU) Using the Nuclear Materials Identification System (NMIS). United States. https://doi.org/10.2172/754364
Chiang, L G, Mattingly, J K, Ramsey, J A, and Mihalczo, J T. 2000. "Verification of Uranium Mass and Enrichments of Highly Enriched Uranium (HEU) Using the Nuclear Materials Identification System (NMIS)". United States. https://doi.org/10.2172/754364. https://www.osti.gov/servlets/purl/754364.
@article{osti_754364,
title = {Verification of Uranium Mass and Enrichments of Highly Enriched Uranium (HEU) Using the Nuclear Materials Identification System (NMIS)},
author = {Chiang, L G and Mattingly, J K and Ramsey, J A and Mihalczo, J T},
abstractNote = {This paper describes how the Nuclear Materials Identification System (NMIS), developed by the Oak Ridge National Laboratory (ORNL) and the Oak Ridge Y-12 Plant, was used to verify the mass and enrichment of hundreds of Highly Enriched Uranium (HEU) metal items in storage at the Y-12 Plant. The verifications had a relative spread of {+-}5% (3 sigma) with relative mean deviations from their declared values of +0.2% for mass and {minus}0.2% for enrichment. NMIS's capability to perform quantification of HEU enabled the Y-12 Plant to meet their nuclear material control and accountability (NMC and A) requirements. These verifications were performed in the storage vault in a very time and cost effective manner with as many as 55 verifications in one shift of operation.},
doi = {10.2172/754364},
url = {https://www.osti.gov/biblio/754364}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {4}
}