Sensitivity study of indepth for verification of facility spent nuclear fuel declarations

Scott M. Richards; Brandon R. Grogan

Sensitivity study of indepth for verification of facility spent nuclear fuel declarations

Material Security and Counterproliferati

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The Inverse Depletion Theory (INDEPTH) code is one of the tools being used to analyze the traditional nondestructive assay (NDA) measurements and verify the initial enrichment, burnup, and cooling time values of spent nuclear fuel (SNF) declared by facilities. The INDEPTH code attempts to reconstruct the initial enrichment and operating history by using the Oak Ridge Isotope Generation (ORIGEN) code to simulate irradiation and cooling of the fuel. This work examined the sensitivity of INDEPTH results to variations in irradiation conditions. Three types of measured data were simulated to identify possible sources of systematic error. An absolute gamma measurement with a gross neutron count produced more accurate answers than either the relative gamma measurement or the absolute gamma measurement by itself in most cases. However, long shutdown times between irradiation cycles were found to greatly affect the accuracy, with the absolute gamma plus gross neutron counts case losing the most accuracy. In these cases, the added neutron data either did not significantly improve the results or made them worse.

Original language	English
Title of host publication	ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference
Subtitle of host publication	Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal
Publisher	American Nuclear Society
Pages	899-905
Number of pages	7
ISBN (Electronic)	9780894487422
State	Published - 2017
Event	16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal, IHLRWM 2017 - Charlotte, United States Duration: Apr 9 2017 → Apr 13 2017

Publication series

Name	ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal

Conference

Conference	16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal, IHLRWM 2017
Country/Territory	United States
City	Charlotte
Period	04/9/17 → 04/13/17

Funding

This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan(http://energy.gov/downloads/doe-public-access-plan).

Funders	Funder number
NGSI-SF
NPAC
Office of Nonproliferation and Arms Control
National Nuclear Security Administration

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

Richards, S. M., & Grogan, B. R. (2017). Sensitivity study of indepth for verification of facility spent nuclear fuel declarations. In ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal (pp. 899-905). (ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal). American Nuclear Society.

Richards, Scott M. ; Grogan, Brandon R. / Sensitivity study of indepth for verification of facility spent nuclear fuel declarations. ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal. American Nuclear Society, 2017. pp. 899-905 (ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal).

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title = "Sensitivity study of indepth for verification of facility spent nuclear fuel declarations",

abstract = "The Inverse Depletion Theory (INDEPTH) code is one of the tools being used to analyze the traditional nondestructive assay (NDA) measurements and verify the initial enrichment, burnup, and cooling time values of spent nuclear fuel (SNF) declared by facilities. The INDEPTH code attempts to reconstruct the initial enrichment and operating history by using the Oak Ridge Isotope Generation (ORIGEN) code to simulate irradiation and cooling of the fuel. This work examined the sensitivity of INDEPTH results to variations in irradiation conditions. Three types of measured data were simulated to identify possible sources of systematic error. An absolute gamma measurement with a gross neutron count produced more accurate answers than either the relative gamma measurement or the absolute gamma measurement by itself in most cases. However, long shutdown times between irradiation cycles were found to greatly affect the accuracy, with the absolute gamma plus gross neutron counts case losing the most accuracy. In these cases, the added neutron data either did not significantly improve the results or made them worse.",

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year = "2017",

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publisher = "American Nuclear Society",

pages = "899--905",

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Richards, SM & Grogan, BR 2017, Sensitivity study of indepth for verification of facility spent nuclear fuel declarations. in ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal. ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal, American Nuclear Society, pp. 899-905, 16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal, IHLRWM 2017, Charlotte, United States, 04/9/17.

Sensitivity study of indepth for verification of facility spent nuclear fuel declarations. / Richards, Scott M.; Grogan, Brandon R.
ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal. American Nuclear Society, 2017. p. 899-905 (ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Richards, Scott M.

AU - Grogan, Brandon R.

PY - 2017

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N2 - The Inverse Depletion Theory (INDEPTH) code is one of the tools being used to analyze the traditional nondestructive assay (NDA) measurements and verify the initial enrichment, burnup, and cooling time values of spent nuclear fuel (SNF) declared by facilities. The INDEPTH code attempts to reconstruct the initial enrichment and operating history by using the Oak Ridge Isotope Generation (ORIGEN) code to simulate irradiation and cooling of the fuel. This work examined the sensitivity of INDEPTH results to variations in irradiation conditions. Three types of measured data were simulated to identify possible sources of systematic error. An absolute gamma measurement with a gross neutron count produced more accurate answers than either the relative gamma measurement or the absolute gamma measurement by itself in most cases. However, long shutdown times between irradiation cycles were found to greatly affect the accuracy, with the absolute gamma plus gross neutron counts case losing the most accuracy. In these cases, the added neutron data either did not significantly improve the results or made them worse.

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BT - ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference

PB - American Nuclear Society

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ER -

Richards SM, Grogan BR. Sensitivity study of indepth for verification of facility spent nuclear fuel declarations. In ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal. American Nuclear Society. 2017. p. 899-905. (ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal).

Sensitivity study of indepth for verification of facility spent nuclear fuel declarations

Abstract

Publication series

Conference

Funding

UN SDGs

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