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Application of Sensitivity/Uncertainty Methods to Burnup Credit Criticality Validation
Application of Sensitivity/Uncertainty Methods to Burnup Credit Criticality Validation
Evaluation of the French Haut Taux de Combustion (HTC) Critical Experiment Data
Evaluation of the French Haut Taux de Combustion (HTC) Critical Experiment Data
In the 1980s, a series of critical experiments referred to as the Haut Taux de Combustion (HTC)
experiments was conducted by the Institut de Radioprotection et de Sûreté Nucléaire (IRSN) at the
experimental criticality facility in Valduc, France. The plutonium-to- uranium ratio and the isotopic
compositions of both the uranium and plutonium used in the simulated fuel rods were designed to be
similar to what would be found in a typical pressurized-water reactor fuel assembly that initially had an
Spent Nuclear Fuel Management: How centralized interim storage can expand options and reduce costs
Spent Nuclear Fuel Management: How centralized interim storage can expand options and reduce costs
The purpose of this study is to assist decision makers in evaluating the centralized interim
storage option. We explore the economics of centralized interim storage under a wide variety of
circumstances. We look at how a commitment to move forward with centralized interim storage
today could evolve over time. And, we evaluate the costs of reversing a commitment toward
centralized storage if it turns out that such a decision is later considered a mistake. We have not
Overview of the Nuclear Regulatory Commission and Its Regulatory Process for the Nuclear Fuel Cycle for Light Water Reactors
Overview of the Nuclear Regulatory Commission and Its Regulatory Process for the Nuclear Fuel Cycle for Light Water Reactors
This paper provides a brief description of the United States Nuclear Regulatory Commission (NRC) and its regulatory process for the current nuclear fuel cycle for light water power reactors (LWRs). It focuses on the regulatory framework for the licensing of facilities in the fuel cycle. The first part of the paper provides an overview of the NRC and its regulatory program including a description of its organization, function, authority, and responsibilities.
Criticality Consequence Analysis Involving Intact PWR SNF in a Degraded 21 PWR Assembly Waste Package
Criticality Consequence Analysis Involving Intact PWR SNF in a Degraded 21 PWR Assembly Waste Package
Spent Nuclear Fuel Transportation: An Examination of Potential Lessons Learned from Prior Shipping Campaigns
Spent Nuclear Fuel Transportation: An Examination of Potential Lessons Learned from Prior Shipping Campaigns
The Nuclear Waste Policy Act of 1982 (NWPA), as amended, assigned the Department of
Energy (DOE) responsibility for developing and managing a Federal system for the disposal of
spent nuclear fuel (SNF) and high-level radioactive waste (HLW). The Office of Civilian
Radioactive Waste Management (OCRWM) is responsible for accepting, transporting, and
disposing of SNF and HLW at the Yucca Mountain repository (if licensed) in a manner that
protects public health, safety, and the environment; enhances national and energy security; and
Draft Global Nuclear Energy Partnership Programmatic Environmental Impact Statement
Draft Global Nuclear Energy Partnership Programmatic Environmental Impact Statement
This Programmatic Environmental Impact Statement (PEIS) provides an analysis of the potential
environmental impacts of the proposed Global Nuclear Energy Partnership (GNEP) program,
which is a United States (U.S.) Department of Energy (DOE) program intended to support a safe,
secure, and sustainable expansion of nuclear energy, both
domestically and internationally. Domestically, the
GNEP Program would promote technologies that support
economic, sustained production of nuclear-generated
electricity, while reducing the impacts associated with
EQ6 Calculations for Chemical Degradation of PWR LEU and PWR MOX Spent Fuel Waste Packages
EQ6 Calculations for Chemical Degradation of PWR LEU and PWR MOX Spent Fuel Waste Packages
THE ROLE OF INDIAN TRIBES IN AMERICA’S NUCLEAR FUTURE
THE ROLE OF INDIAN TRIBES IN AMERICA’S NUCLEAR FUTURE
Indian tribes have voiced their tribal issues in the United States‘ nuclear effort since its
inception, with the siting of what would become Los Alamos National Laboratory adjacent to the
San Ildefonso Pueblo Reservation and the Hanford plutonium production works along waterways
shared with the Yakama Nation and other Indian tribes. The siting of a proposed repository at
Yucca Mountain, Nevada along with other activities conducted on the Nevada National Security
Site (NNSS) (formerly the Nevada Test Site), increased the need for the United States
YMP Preliminary Wet Handling Facility Throughput Study
YMP Preliminary Wet Handling Facility Throughput Study
This study describes the development of a preliminary throughput estimate for a Wet Handling Facility (WHF)/ used fuel repackaging factility. This study estimates the throughput for the WHF License Application design for a repository at Yucca Mountain as of September 2007. This design freeze allowed for the development of the throughput study without having to accommodate for minor updates to the facility design and documentation leading up to the License Application.
NRC Waste Confidence Positions
NRC Waste Confidence Positions
In response to the remand of the U.S. Court of Appeals for the District of Columbia Circuit (Minnesota v. NRC, 602 F.2d 412 (1979)), and as a continuation of previous proceedings conducted in this area by NRC (44 Fed. Reg. 61,372), the Commission initiated a generic rulemaking proceeding on October 25, 1979.
THE REPORT TO THE PRESIDENT AND THE CONGRESS BY THE SECRETARY OF ENERGY ON THE NEED FOR A SECOND REPOSITORY
THE REPORT TO THE PRESIDENT AND THE CONGRESS BY THE SECRETARY OF ENERGY ON THE NEED FOR A SECOND REPOSITORY
The Nuclear Waste Policy Act of 1982, as amended (NWPA), establishes a process for the siting, construction and operation of one or more national repositories for permanent disposal of the Nation’s spent nuclear fuel (SNF) and high-level radioactive waste (HLW). In 1987, after the Department of Energy (the Department or DOE) had conducted studies of nine potential repository sites located throughout the United States, Congress amended the NWPA and selected the Yucca Mountain site in Nye County, Nevada as the only site for further study for the first national repository.
slides - Potential Improvements to the Licensing Process for a Recycling Plant
slides - Potential Improvements to the Licensing Process for a Recycling Plant
Presented at the NEI Used Fuel Management Conference, St. Petersburg, FL, May 7-9, 2013
Plutonium Fuel: An Assessment Report by an Expert Group
Plutonium Fuel: An Assessment Report by an Expert Group
Ever since the 1950s, plutonium, used in fas reactors, has been seen as the key to unlocking the vast energy resource contained in the the world's uranium reserves. However, the reductions in expected nuclear reactor installation rates, combined with discovery of additional uranium, have led to a lengthening in the perceived time interval before fast reactors, the most effective users of plutonium, will make large demands on plutonium supplies. THere are several options concerning its use or storage in the meantime.
Surveillance of Respiratory Diseases Among Construction and Trade Workers at Department of Energy Nuclear Sites
Surveillance of Respiratory Diseases Among Construction and Trade Workers at Department of Energy Nuclear Sites
Background Medical screening programs were begun in 1996 and 1997 at three Department
of Energy (DOE) nuclear weapons facilities (Hanford Nuclear Reservation, Oak
Ridge, and the Savannah River Site) to evaluate whether current and former construction
workers are at significant risk for occupational illnesses. The focus of this report is
pneumoconiosis associated with exposures to asbestos and silica among workers enrolled
in the screening programs through September 30, 2001.
Slides - Status Update: Extended Storage and Transportation Waste Confidence
Slides - Status Update: Extended Storage and Transportation Waste Confidence
Presented at the NEI Used Fuel Management Conference, St. Petersburg, FL, May 7-9, 2013
Evaluation of Cross-Section Sensitivities in Computing Burnup Credit Fission Product Concentrations
Evaluation of Cross-Section Sensitivities in Computing Burnup Credit Fission Product Concentrations
U.S. Nuclear Regulatory Commission Interim Staff Guidance 8 (ISG-8) for burnup credit covers actinides only, a position based primarily on the lack of definitive critical experiments and adequate radiochemical assay data that can be used to quantify the uncertainty associated with fission product credit.
slides - GC-859 Pilot Program Update
slides - GC-859 Pilot Program Update
Presented at the NEI Used Fuel Management Conference, St. Petersburg, FL, May 7-9, 2013
Probabilistic External Criticality Evaluation
Probabilistic External Criticality Evaluation
Comparing Nuclear Fuel Cycle Options
Comparing Nuclear Fuel Cycle Options
The comparison of different nuclear fuel cycle options has become an integral element to any analysis of the future prospects for nuclear energy, in the United States and around the world. Concerns for supply security and price volatility of fossil fuels, combined with growing resolve to reduce the emissions of greenhouse gases, have caused a general shift in attitudes towards nuclear energy. However, there are lingering sustainability concerns for nuclear energy – long term uranium supply and environmental impact – as well as concerns about the proliferation of nuclear weapons.
slides - DOE Nuclear Fuel Storage and Transportation (NFST) Planning Project: System Analysis and Integration Activities
slides - DOE Nuclear Fuel Storage and Transportation (NFST) Planning Project: System Analysis and Integration Activities
Presented at the NEI Used Fuel Management Conference, St. Petersburg, FL, May 7-9, 2013
Evaluation of Waste Stream Receipt Scenarios for Repository Loading
Evaluation of Waste Stream Receipt Scenarios for Repository Loading
The purpose of this calculation is to simulate the processing of an incoming waste stream into waste packages, simulating the required aging as applicable, and the emplacement of the waste packages into the Yucca Mountain repository.
slides - Observations on Key Storage and Transport Technical Issues
slides - Observations on Key Storage and Transport Technical Issues
Presented at the NEI Used Fuel Management Conference, St. Petersburg, FL, May 7-9, 2013
Draft Report for Comment: Identification and Prioritization of the Technical Information Needs Affecting Potential Regulation of Extended Storage and Transportation of Spent Nuclear Fuel
Draft Report for Comment: Identification and Prioritization of the Technical Information Needs Affecting Potential Regulation of Extended Storage and Transportation of Spent Nuclear Fuel
he U.S. Nuclear Regulatory Commission (NRC) regulates storage of spent nuclear fuel (SNF) from commercial nuclear power plants. An increasing amount of the SNF in storage is in dry storage systems, mostly at current and decommissioned plants. As directed by the Commission (in SRM-COMSECY-10-0007; December 6, 2010), in expectation of continued use of dry storage for extended periods of time, the NRC staff is examining the technical needs and potential changes to the regulatory framework that may be needed to continue licensing of SNF storage over periods beyond 120 years.