Accès ouvert
2018
report
OpenAlex
Catherine E. Romano, Timothy Ault, L. A. Bernstein, Rian Bahran et autres
On January 23–25, 2018 in Washington, DC, the National Nuclear Security Administration (NNSA) Office of Defense Nuclear Nonproliferation (DNN) Research and Development (NA-22) supported the three-day Nuclear Data Roadmapping and Enhancement Workshop (NDREW) to enable nonproliferation missions. The goal was to assemble …
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2018
article
OpenAlex
Timothy Ault, Steven Krahn, Andrew Worrall, Allen G. Croff
Certain characteristics of heavy water reactors (HWRs), such as a more flexible neutron economy compared to light water (due to reduced absorptions in hydrogen), online refueling capability, and having a thermal neutron spectrum, make them potentially attractive for use with a thorium …
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Accès ouvert
2017
report
OpenAlex
Steven Krahn, Timothy Ault, Andrew Worrall
The report is broken into six chapters, including this executive summary chapter. Following an introduction, this report discusses each of the project’s three major components (Fuel Cycle Data Package (FCDP) Development, Thorium Fuel Cycle Literature Analysis and Database Development, and the Thorium …
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Accès ouvert
2017
article
OpenAlex
Timothy Ault, Steven Krahn, Allen G. Croff
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Accès ouvert
2017
article
OpenAlex
Timothy Ault, Steven Krahn, Allen G. Croff
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2017
dissertation
OpenAlex
Timothy Ault
2016
article
OpenAlex
Timothy Ault, Bradley S. Van Gosen, Steven Krahn, Allen G. Croff
This paper reviews the front end of the thorium fuel cycle, including the extent and variety of thorium deposits, the potential sources of thorium production, and the physical and chemical technologies required to isolate and purify thorium. Thorium is frequently found within …
Accès ouvert
2015
article
OpenAlex
Timothy Ault, Steven Krahn, Allen G. Croff
Energy industries account for a significant portion of total rare earth usage, both in the US and worldwide. Rare earth minerals are frequently collocated with naturally occurring radioactive material, imparting an occupational radiological dose during recovery. This paper explores the extent to …
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2015
article
OpenAlex
Timothy Ault, Steven Krahn, Allen G. Croff
A long-standing concern about the future implementation of thorium fuel cycles has been the availability of a thorium fuel cycle infrastructure, including thorium mineral recovery. Globally, while thorium is known to be a relatively abundant element, there is currently little commercial demand …
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Accès ouvert
2013
report
OpenAlex
Brett Carlsen, Brent W. Dixon, Urairisa Pathanapirom, Eric C. Schneider et autres
The Department of Energy Office of Nuclear Energy’s Fuel Cycle Technologies program is preparing to evaluate several proposed nuclear fuel cycle options to help guide and prioritize Fuel Cycle Technology research and development. Metrics are being developed to assess performance against nine …
2013
article
OpenAlex
Steven Krahn, Allen G. Croff, Timothy Ault, R.G. Wymer
In this paper we have endeavored to present the available technical information on the potential use of Th in nuclear fuel cycle (FC) applications as compared to U without subjective evaluations. Where helpful, we have compared the technical attributes of Th-232 as …
2013
article
OpenAlex
Timothy Ault, R.G. Wymer, Allen G. Croff, Steven Krahn
The use of thorium in nuclear power programs has been evaluated on a recurring basis. A concern often raised is the lack of 'thorium infrastructure'; however, for at least a part of a potential thorium fuel cycle, this may less of a …
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