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An Approach for Validating Actinide and Fission Product Burnup Credit Criticality Safety Analyses--Isotopic Composition Predictions
An Approach for Validating Actinide and Fission Product Burnup Credit Criticality Safety Analyses--Isotopic Composition Predictions
Taking credit for the reduced reactivity of spent nuclear fuel in criticality analyses is referred to
as burnup credit. Criticality safety evaluations employing burnup credit require validation of the
depletion and criticality calculation methods and computer codes with available measurement
data. To address the issues of burnup credit criticality validation, the U.S. Nuclear Regulatory
Commission initiated a project with Oak Ridge National Laboratory to (1) develop and establish
Sensitivity Coefficient Generation for a Burnup Credit Cask Model Using TSUNAMI-3D
Sensitivity Coefficient Generation for a Burnup Credit Cask Model Using TSUNAMI-3D
Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants: LWR Edition (NUREG-75/087)
Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants: LWR Edition (NUREG-75/087)
The Standard Review Plan (SRP) is prepared for the guidance of staff reviewers in the Office of Nuclear Reactor Regulation in performing safety reviews of applications to construct or operate nuclear power plants. The principal purpose of the SRP is to assure the quality and uniformity of staff reviews, and to present a well-defined base from which to evaluate proposed changes in the scope and requirements of reviews.
Sensitivity and Uncertainty Analysis of Commercial Reactor Criticals for Burnup Credit
Sensitivity and Uncertainty Analysis of Commercial Reactor Criticals for Burnup Credit
This paper provides insights into the neutronic similarities between a representative high-capacity rail-transport cask containing typical pressurized water reactor (PWR) spent nuclear fuel assemblies and critical reactor state-points, referred to as commercial reactor critical (CRC) state-points. Forty CRC state-points from five PWRs were analyzed, and the characteristics of CRC state-points that may be applicable for validation of burnup-credit criticality safety calculations for spent fuel transport/storage/disposal systems were identified.
Underlying Yucca Mountain: The Interplay of Geology and Policy in Nuclear Waste Disposal
Underlying Yucca Mountain: The Interplay of Geology and Policy in Nuclear Waste Disposal
Nuclear waste disposal in the USA is a difficult policy issue infused with
science, technology, and politics. This issue provides an example of the co-production
of scientific knowledge and politics through public policy. The proponents of a
repository site at Yucca Mountain, Nevada, argue that their decision to go ahead
with the site is based on ‘sound science’, but the science they use to uphold their
decision is influenced by politics. In turn, the politics of site selection has been altered
What We've Heard - A Staff Summary of Major Themes in Testimony and Comments Received by the Blue Ribbon Commission on America’s Nuclear Future to Date
What We've Heard - A Staff Summary of Major Themes in Testimony and Comments Received by the Blue Ribbon Commission on America’s Nuclear Future to Date
The Commission is charged with submitting a
draft report to the Secretary of Energy before
the end of July 2011. To aid the Commissioners
in fulfilling that responsibility, the Commission
staff has prepared this report to summarize what
the Commission has heard up to this point in
the process. It does not attempt to recount every
comment or opinion submitted to the Commission
thus far; rather, the aim here is to summarize
major themes from the extensive testimony and
public comment the Commission has received to
Sensitivity and Uncertainty Analysis of Commercial Reactor Criticals for Burnup Credit
Sensitivity and Uncertainty Analysis of Commercial Reactor Criticals for Burnup Credit
The purpose of this study is to provide insights into the neutronic similarities that may exist between a
generic cask containing typical spent nuclear fuel assemblies and commercial reactor critical (CRC) state-
points. Forty CRC state-points from five pressurized-water reactors were selected for the study and the
type of CRC state-points that may be applicable for validation of burnup credit criticality safety
calculations for spent fuel transport/storage/disposal systems are identified. The study employed cross-
Sensitivity and Parametric Evaluations of Significant Aspects of Burnup Credit for PWR Spent Fuel Packages
Sensitivity and Parametric Evaluations of Significant Aspects of Burnup Credit for PWR Spent Fuel Packages
Spent fuel transportation and storage cask designs based on a burnup credit approach must
consider issues that are not relevant in casks designed under a fresh-fuel loading assumption. For
example, the spent fuel composition must be adequately characterized and the criticality analysis
model can be complicated by the need to consider axial burnup variations. Parametric analyses are
needed to characterize the importance of fuel assembly and fuel cycle parameters on spent fuel
An Approach for Validating Actinide and Fission Product Burnup Credit Criticality Safety Analyses-Criticality (keff) Predictions
An Approach for Validating Actinide and Fission Product Burnup Credit Criticality Safety Analyses-Criticality (keff) Predictions
Taking credit for the reduced reactivity of spent nuclear fuel (SNF) in criticality analyses is referred to as burnup credit (BUC). Criticality safety evaluations require validation of the computational methods with critical experiments that are as similar as possible to the safety analysis models, and for which the keff values are known. This poses a challenge for validation of BUC criticality analyses, as critical experiments with actinide and fission product (FP)
Letter to The Honorable Dr. Steven Chu, Secretary of Energy - Blue Ribbon Commission request for approval to establish and populate the three subcommittees.
Letter to The Honorable Dr. Steven Chu, Secretary of Energy - Blue Ribbon Commission request for approval to establish and populate the three subcommittees.
Dear Secretary Chu:
Thank you for your remarks to the Blue Ribbon Commission on America’s Nuclear Future at our inaugural meeting on March 25, 2010. Your guidance was both enlightening and invaluable as we establish a plan to fulfill the Commission’s charter.
Earning Public Trust and Confidence: Requisites for Managing Radioactive Wastes
Earning Public Trust and Confidence: Requisites for Managing Radioactive Wastes
This is the final report of the Secretary of Energy Advisory Board Task Force on Radioactive Waste Management, published in November 1993.
WP 2 Appendix 10 Balance of Power: Principles and Good Practices for Local Stakeholders to Influence National Decision-making Processes
WP 2 Appendix 10 Balance of Power: Principles and Good Practices for Local Stakeholders to Influence National Decision-making Processes
Our basic position is that the outcomes of policy-making in radioactive waste management (RWM) should be driven by the will of the people through democratic processes. Achieving this inclusiveness requires good practices to increase local influence on what is essentially a national policy process. However inclusiveness poses significant practical problems; can society afford lengthy and costly consultation processes, often perceived as inefficient and ineffective?
POSITION PAPER ON PUBLIC AND STAKEHOLDER ENGAGEMENT
POSITION PAPER ON PUBLIC AND STAKEHOLDER ENGAGEMENT
This document does not present the views of the Committee on Radioactive Waste Management nor can it be taken to present the views of its author. It is a draft paper to inform Committee deliberations and both the author and the whole Committee may adopt different views and draw entirely different conclusions after further consideration and debate
POSITION PAPER ON PUBLIC AND STAKEHOLDER ENGAGEMENT for Discussion and Decision
POSITION PAPER ON PUBLIC AND STAKEHOLDER ENGAGEMENT for Discussion and Decision
This document does not present the views of the Committee on Radioactive Waste Management nor can it be taken to present the views of its author. It is a draft paper to inform Committee deliberations and both the author and the whole Committee may adopt different views and draw entirely different conclusions after further consideration and debate
End of FY10 Report – Used Fuel Disposition Technical Bases and Lessons Learned Legal and Regulatory Framework for High-Level Waste Disposition in the United States
End of FY10 Report – Used Fuel Disposition Technical Bases and Lessons Learned Legal and Regulatory Framework for High-Level Waste Disposition in the United States
This report examines the current policy, legal, and regulatory framework pertaining to used nuclear fuel and high level waste management in the United States. The goal is to identify potential changes that if made could add flexibility and possibly improve the chances of successfully implementing technical aspects of a nuclear waste policy. Experience suggests that the regulatory framework should be established prior to initiating future repository development.
Multiattribute Utility Analysis as a Framework for Public Participation: Siting a Hazardous Waste Facility
Multiattribute Utility Analysis as a Framework for Public Participation: Siting a Hazardous Waste Facility
In an attempt to facilitate the resolution of contentious environmental problems, public agencies are increasingly using collaborative approaches wherein stakeholders participate in the decision-making process. A dilemma for the design of collaborative approaches is the technical complexity of many environmental problems. How can members of the public play a meaningful role in decisions that involve complicated scientific arguments?
Answers to Questions on National Report of The Slovak Republic, April 2012
Answers to Questions on National Report of The Slovak Republic, April 2012
Sustainable Development Report: Managing Today to Prepare for Tomorrow
Sustainable Development Report: Managing Today to Prepare for Tomorrow
Andras goal of Sustainability
DOE Seeks Public-Private Sector Expressions of Interest for Global Nuclear Energy Partnership Initiative
DOE Seeks Public-Private Sector Expressions of Interest for Global Nuclear Energy Partnership Initiative
Press Release - DOE Seeks Public-Private Sector Expressions of Interest for Global Nuclear Energy Partnership Initiative
Comments to BRC Meeting
Comments to BRC Meeting
Geological Challenges in Radioactive Waste Isolation
Geological Challenges in Radioactive Waste Isolation
Over the past forty years, the development of the technology needed to isolate radioactive waste in underground rock systems has been found to be a formidable problem. This is especially the case in connection with high-level waste (HLW) after its removal from operations in nuclear power plants. There is also the additional problem of isolating low- and intermediate-level waste (LILW).
Stakeholder Dialogue: Experience and Analysis
Stakeholder Dialogue: Experience and Analysis
The report begins with a consideration of the factors which have led to a growth in the use of dialogue processes, a clarification of key concepts and a classification of dialogue processes. A description of recent and current activities in Europe and North America is followed by discussion of the relationship of processes and contexts. This then leads to an identification of the key aims and evaluation criteria which will be used in the design of dialogue processes to be conducted in subsequent phases of the project.
Options for Developing Public and Stakeholder Engagement for the Storage and Management of Spent Nuclear Fuel (SNF) and High Level Waste (HLW) in the United States
Options for Developing Public and Stakeholder Engagement for the Storage and Management of Spent Nuclear Fuel (SNF) and High Level Waste (HLW) in the United States
This report puts forth a number of options and recommendations for how to engage stakeholders and other members of the public in the storage and management of spent nuclear fuel and high level waste in the United States. The options are generated from a scientific review of existing publications proposing criteria for assessing past efforts to engage publics and stakeholders in decision-making about risky technologies.