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Capsule Integrity Report for Capsule Dry Storage Project

Capsule Integrity Report for Capsule Dry Storage Project
Author:
Publisher:
Total Pages: 113
Release: 2003
Genre:
ISBN:

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The cesium and strontium capsules stored in pools at the Waste Encapsulation and Storage Facility (WESF) will be moved to dry storage on the Hanford Site as an interim measure to reduce risk. The integrity of these capsules under the conditions of dry storage for a period of 50 years has been evaluated. Four deterioration mechanisms have been considered. These mechanisms include (1) swelling and/or pressurization of the capsules due to phase transformations of the salt; (2) deterioration of the welds; (3) corrosion of the capsules, and (4) mechanical failure of the capsule due to thermal aging. Corrosion of the capsules includes both external and internal corrosion of the capsules from the salts and is described in greater detail in WMP-16937, ''Corrosion Report for the Capsule Dry Storage Project''. Three accident scenarios that have the potential to challenge the integrity of the capsules are being considered for the dry storage module: (1) fire, (2) a blocked inlet or outlet from the dry storage module, and (3) a drop of the overpack. The drop scenario also includes an accident scenario where a stack of overpacks falls over. These accident scenarios are the best estimate of possible events as determined by an initial hazards analysis.


Capsule Characterization Report for Capsule Dry Storage Project

Capsule Characterization Report for Capsule Dry Storage Project
Author:
Publisher:
Total Pages: 91
Release: 2003
Genre:
ISBN:

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There are 1,936 cesium (Cs) and strontium (Sr) capsules stored in pool cells at the Waste Encapsulation and Storage Facility (WESF). These capsules will be moved to dry storage on the Hanford Site as an interim measure to reduce risk. The Cs/Sr Capsule Dry Storage Project (CDSP) is conducted under the assumption that the capsules will eventually be moved to the repository at Yucca Mountain, and the design criteria include requirements that will facilitate acceptance at the repository. The storage system must also permit retrieval of capsules in the event that vitrification of the capsule contents is pursued. The purpose of this report is to (1) develop performance criteria for the capsules to ensure that the capsules fall within the design and safety basis prior to being placed into the storage; (2) evaluate the current integrity of the capsules to determine whether they can be safely handled and loaded into dry storage system overpacks; and (3) establish criteria and evaluate the integrity of the capsules at the end of the 50-year dry storage life to assess whether they can be retrieved safely from the overpacks, if required. The evaluations are based on reviews of existing capsule documentation, results of capsule inspections and testing performed at WESF, and corrosion studies assessing current capsule conditions and predicting the extent of future capsule degradation.


Summary Report for Capsule Dry Storage Project

Summary Report for Capsule Dry Storage Project
Author:
Publisher:
Total Pages: 127
Release: 2003
Genre:
ISBN:

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There are 1.936 cesium (Cs) and strontium (Sr) capsules stored in pools at the Waste Encapsulation and Storage Facility (WESF). These capsules will be moved to dry storage on the Hanford Site as an interim measure to reduce risk. The Cs/Sr Capsule Dry Storage Project (CDSP) is conducted under the assumption the capsules will eventually be moved to the repository at Yucca Mountain, and the design criteria include requirements that will facilitate acceptance at the repository. The storage system must also permit retrieval of capsules in the event vitrification of the capsule contents is pursued. A cut away drawing of a typical cesium chloride (CsCI) capsule and the capsule property and geometry information are provided in Figure 1.1. Strontium fluoride (SrF2) capsules are similar in design to CsCl capsules. Further details of capsule design, current state, and reference information are given later in this report and its references. Capsule production and life history is covered in WMP-16938, Capsule Characterization Report for Capsule Dry Storage Project, and is briefly summarized in Section 5.2 of this report.


Containment Capsule Impact Safety Study

Containment Capsule Impact Safety Study
Author: C. W. Young
Publisher:
Total Pages: 70
Release: 1965
Genre: Materials
ISBN:

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The Containment Capsule Impact Safety Study (CCISS) is an experimental study of the relative importance of some parameters affecting the structural integrity of radioisotope containment capsules when they are subjected to impact loading.


Energy Research Abstracts

Energy Research Abstracts
Author:
Publisher:
Total Pages: 600
Release: 1993
Genre: Power resources
ISBN:

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Improving the Scientific Basis for Managing DOE's Excess Nuclear Materials and Spent Nuclear Fuel

Improving the Scientific Basis for Managing DOE's Excess Nuclear Materials and Spent Nuclear Fuel
Author: National Research Council
Publisher: National Academies Press
Total Pages: 124
Release: 2003-06-09
Genre: Science
ISBN: 0309087228

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The production of nuclear materials for the national defense was an intense, nationwide effort that began with the Manhattan Project and continued throughout the Cold War. Now many of these product materials, by-products, and precursors, such as irradiated nuclear fuels and targets, have been declared as excess by the Department of Energy (DOE). Most of this excess inventory has been, or will be, turned over to DOE's Office of Environmental Management (EM), which is responsible for cleaning up the former production sites. Recognizing the scientific and technical challenges facing EM, Congress in 1995 established the EM Science Program (EMSP) to develop and fund directed, long-term research that could substantially enhance the knowledge base available for new cleanup technologies and decision making. The EMSP has previously asked the National Academies' National Research Council for advice for developing research agendas in subsurface contamination, facility deactivation and decommissioning, high-level waste, and mixed and transuranic waste. For this study the committee was tasked to provide recommendations for a research agenda to improve the scientific basis for DOE's management of its high-cost, high-volume, or high-risk excess nuclear materials and spent nuclear fuels. To address its task, the committee focused its attention on DOE's excess plutonium-239, spent nuclear fuels, cesium-137 and strontium-90 capsules, depleted uranium, and higher actinide isotopes.


Strengthening Forensic Science in the United States

Strengthening Forensic Science in the United States
Author: National Research Council
Publisher: National Academies Press
Total Pages: 348
Release: 2009-07-29
Genre: Law
ISBN: 0309142393

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Scores of talented and dedicated people serve the forensic science community, performing vitally important work. However, they are often constrained by lack of adequate resources, sound policies, and national support. It is clear that change and advancements, both systematic and scientific, are needed in a number of forensic science disciplines to ensure the reliability of work, establish enforceable standards, and promote best practices with consistent application. Strengthening Forensic Science in the United States: A Path Forward provides a detailed plan for addressing these needs and suggests the creation of a new government entity, the National Institute of Forensic Science, to establish and enforce standards within the forensic science community. The benefits of improving and regulating the forensic science disciplines are clear: assisting law enforcement officials, enhancing homeland security, and reducing the risk of wrongful conviction and exoneration. Strengthening Forensic Science in the United States gives a full account of what is needed to advance the forensic science disciplines, including upgrading of systems and organizational structures, better training, widespread adoption of uniform and enforceable best practices, and mandatory certification and accreditation programs. While this book provides an essential call-to-action for congress and policy makers, it also serves as a vital tool for law enforcement agencies, criminal prosecutors and attorneys, and forensic science educators.


EPA Publications Bibliography

EPA Publications Bibliography
Author: United States. Environmental Protection Agency
Publisher:
Total Pages: 150
Release: 1998
Genre: Environmental protection
ISBN:

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