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HYDRIDE-RELATED DEGRADATION OF SNF CLADDING UNDER REPOSITORY CONDITIONS

Description: The purpose and scope of this analysis/model report is to analyze the degradation of commercial spent nuclear fuel (CSNF) cladding under repository conditions by the hydride-related metallurgical processes, such as delayed hydride cracking (DHC), hydride reorientation and hydrogen embrittlement, thereby providing a better understanding of the degradation process and clarifying which aspects of the process are known and which need further evaluation and investigation. The intended use is as an i… more
Date: December 12, 2000
Creator: McCoy, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Classification of the MGR Canistered SNF Disposal Container

Description: The purpose of this analysis is to document the Quality Assurance (QA) classification of the Monitored Geologic Repository (MGR) canistered spent nuclear fuel disposal container system structures, systems and components (SSCs) performed by the MGR Safety Assurance Department. This analysis also provides the basis for revision of YMP/90-55Q, Q-List (YMP 1998). The Q-List identifies those MGR SSCs subject to the requirements of DOE/RW-0333PY ''Quality Assurance Requirements and Description'' (QAR… more
Date: August 31, 1999
Creator: Ziegler, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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THE FATE OF THE EPSILON PHASE IN UO2 OF THE OKLO NATURAL FISSON REACTORS

Description: In spent nuclear fuel (SNF), the micron- to nano-sized epsilon phase (Mo-Ru-Pd-Tc-Rh) is an important host of {sup 99}Tc which has a long half life (2.13 x 10{sup 5} years) and can be an important contributor to dose in safety assessments of nuclear waste repositories. In order to examine the occurrence and the fate of the epsilon phase during the corrosion of SNF over long time periods, samples of uraninite from the Oklo natural reactors ({approx}2.0 Ga) have been investigated using transmissi… more
Date: September 8, 2005
Creator: Utsunomiya, S. & Ewing, R.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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EVALUATION OF THE CORROSIVITY OF DUST DEPOSITED ON WASTE PACKAGES AT YUCCA MOUNTAIN, NEVADA

Description: Potentially corrosive brines can form during post-closure by deliquescence of salt minerals in dust deposited on the surface of waste packages at Yucca Mountain during operations and the pre-closure ventilation period. Although thermodynamic modeling and experimental studies of brine deliquescence indicates that brines are likely to form, they will be nitrate-rich and non-corrosive. Processes that modify the brines following deliquescence are beneficial with respect to inhibition of corrosion. … more
Date: August 3, 2005
Creator: Bryan, C.; Jack, R.; T, Wolery; Shields, D.; Sutton, M.; Hardin, E. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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EARTHQUAKE TRIGGERING AND SPATIAL-TEMPORAL RELATIONS IN THE VICINITY OF YUCCA MOUNTAIN, NEVADA

Description: It is well accepted that the 1992 M 5.6 Little Skull Mountain earthquake, the largest historical event to have occurred within 25 km of Yucca Mountain, Nevada, was triggered by the M 7.2 Landers earthquake that occurred the day before. On the premise that earthquakes can be triggered by applied stresses, we have examined the earthquake catalog from the Southern Great Basin Digital Seismic Network (SGBDSN) for other evidence of triggering by external and internal stresses. This catalog now compr… more
Date: February 8, 2001
Creator: na
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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YUCCA MOUNTAIN FACTS AT A GLANCE

Description: The US Department of Energy (DOE) has been studying Yucca Mountain, Nevada, for more than 20 years to determine its suitability as a geologic repository for the nation's commercial and defense spent nuclear fuel and high-level radioactive waste. A semi-arid climate, limited surface water, and deep water tables characterize the area. The DOE believes Yucca Mountain is a promising site for a geologic repository.
Date: June 6, 2001
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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REPOSITORY SURFACE FACILITIES PRIMARY SYSTEM CRANE DATA

Description: The purpose of this calculation is to compile crane design data for the mechanical primary structures, systems, and components (SSCs) required for the repository Waste Handling Building (WHB) and Carrier Preparation Building (CPB). The work presented in this document has been prepared in accordance with Office of Civilian Radioactive Waste Management approved program document AP-3.12Q, Calculations. This calculation has been developed to supplement information previously prepared using the deve… more
Date: March 14, 2005
Creator: Schwartztrauber, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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CLASSIFICATION OF MGR GROUND CONTROL SYSTEM

Description: The purpose of this analysis is to document the Quality Assurance (QA) classification of the Monitored Geologic Repository (MGR) ground control system structures, systems and components (SSCs) performed by the MGR Safety Assurance Department. This analysis also provides the basis for revision of YMP/90-55Q, Q-List (YMP 1998). The Q-List identifies those MGR SSCs subject to the requirements of DOE/RW-0333PY ''Quality Assurance Requirements and Description'' (QARD) (DOE 1998).
Date: August 31, 1999
Creator: Garrett, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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DESERT PAVEMENTS AND SOILS ON BASALTIC PYROCLASTIC DEPOSITS AT LATHROP WELLS AND RED CONE VOLCANOES, SOUTHERN NEVADA

Description: Formation of desert pavement and accretionary soils are intimately linked in arid environments such as the Mojave Desert. Well-sorted fallout scoria lapilli at Lathrop Wells (75-80 ky) and Red Cone ({approx}1 Ma) volcanoes (southern Nevada) formed an excellent starting material for pavement, allowing infiltration of eolian silt and fine sand that first clogs the pore space of underlying tephra and then aggrades and develops vesicular A (Av) horizons. Variations in original pyroclast sizes provi… more
Date: August 10, 2005
Creator: Valentine, G.A. & Harrington, C.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Micelle Formation and Surface Interactions in Supercritical CO2. Fundamental Studies for the Extraction of Actinides from Contaminated Surfaces.

Description: We are examining the potential of water in CO2 microemulsions as a new medium for the extraction of metal ions from contaminated surfaces with the ultimate goal of extracting actinides from heterogeneous waste to aid in decontamination and waste reduction.
Date: September 1, 2000
Creator: McCleskey, T Mark & Birnbaum, Eva R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Modeling the Cathodic Region in Crevice Corrosion Under a Thin Electrolyte Film Including Particulates

Description: The present state of understanding of localized corrosion of passive metals is based primarily upon behavior under fully immersed solutions. There has been limited analysis of localized corrosion in moist layers of dust, particulate and deposits. This work as part of a multi-university Corrosion Cooperative of the DOE-OCRWM Science and Technology Program established to enhance the understanding of corrosion processes and materials performance. The objective of this project is to develop models … more
Date: June 15, 2005
Creator: Agarwal, A. S.; Landau, U.; Shan, X. & Payer, J. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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STRONTIUM ISOTOPE EVOLUTION OF PORE WATER AND CALCITE IN THE TOPOPAH SPRING TUFF, YUCCA MOUNTAIN , NEVADA

Description: Yucca Mountain, a ridge of Miocene volcanic rocks in southwest Nevada, is being characterized as a site for a potential high-level radioactive waste repository. One issue of concern for the future performance of the potential repository is the movement of water in and around the potential repository horizon. Past water movement in this unsaturated zone is indicated by fluid inclusions trapped in calcite coatings on fracture footwall surfaces and in some lithophysal cavities. Some of the fluid i… more
Date: February 7, 2001
Creator: Marshall, B.D. & Futa, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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RADIONUCLIDE MIGRATION IN TUFF UNDER UNSATURATED CONDITIONS

Description: An understanding of the transport of radionuclides through unsaturated and saturated tuffaceous material is essential in assessing the safety of the proposed high-level waste repository at Yucca Mountain. Migration experiments with conservative and chemically reactive non-radioactive tracers have been performed at the Busted Butte Unsaturated Zone underground facility, SE of Yucca Mountain, and with radionuclides in columns of crushed tuff at the Los Alamos National Laboratory. In this paper, c… more
Date: October 25, 2000
Creator: Vandergraaf, T.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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NNWSI PROJECT ELEMENT WBS-1.2.6.9.4.6.1.B INTERIM REPORT ON DUST CONTROL PROPOSALS

Description: This report presents interim findings of studies conducted to evaluate dust control equipment during prototype drilling. Based on available data on silica content, type, particle size, and on proposed dry drilling operations, it is estimated that allowable exposures to free silica will range from 0.07 to 1.5 mg/cu meter. They have concluded that airborne concentrations of dust may approach or exceed these values during normal operations, based on studies conducted as part of this task.
Date: September 6, 2005
Creator: Burton, D.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ENGINEERED BARRIER SYSTEM: PHYSICAL AND CHEMICAL ENVIRONMENT

Description: The purpose of this report is to describe the evolution of the physical and chemical environmental conditions within the waste emplacement drifts of the repository, including the drip shield and waste package surfaces. The abstraction model is used in the total system performance assessment for the license application (TSPA LA) to assess the performance of the engineered barrier system and the waste form. This report develops and documents a set of these abstraction-level models that describe t… more
Date: November 23, 2004
Creator: Jarek, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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FIRE HAZARDS ANALYSIS - BUSTED BUTTE

Description: The purpose of this fire hazards analysis (FHA) is to assess the risk from fire within individual fire areas at the Busted Butte Test Facility and to ascertain whether the DOE fire safety objectives are met. The objective, identified in DOE Order 420.1, Section 4.2, is to establish requirements for a comprehensive fire and related hazards protection program for facilities sufficient to minimize the potential for: (1) The occurrence of a fire related event. (2) A fire that causes an unacceptable… more
Date: January 22, 2001
Creator: Longwell, R.; Keifer, J. & Goodin, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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CLASSIFICATION OF THE MGR WASTE HANDLING BUILDING SYSTEM

Description: The purpose of this analysis is to document the Quality Assurance (QA) classification of the Monitored Geologic Repository (MGR) waste handling building system structures, systems and components (SSCs) performed by the MGR Safety Assurance Department. This analysis also provides the basis for revision of YMP/90-55Q, Q-List (YMP 1998). The Q-List identifies those MGR SSCs subject to the requirements of DOE/RW-0333PY ''Quality Assurance Requirements and Description'' (QARD) (DOE 1998).
Date: August 30, 1999
Creator: Salzman, S. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Complex Electrical Resistivity from Monitoring DNAPL Contamination

Description: Nearly all Department of Energy (DOE) facilities have landfills and buried waste areas. Of the various contaminants present at these sites, dense non-aqueous phase liquids (DNAPL) are particularly hard to locate and remove. There is an increasing need for external or non-invasive sensing techniques to locate DNAPLs in the subsurface and to track their spread and monitor their breakdown or removal by natural or engineered means. G. Olhoeft and colleagues have published several reports based on l… more
Date: June 1, 2003
Creator: Brown, Stephen R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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CLASSIFICATION OF THE MGR UNCANISTERED SNF DISPOSAL CONTAINER

Description: The purpose of this analysis is to document the Quality Assurance (QA) classification of the Monitored Geologic Repository (MGR) uncanistered spent nuclear fuel (SNF) disposal container system structures, systems and components (SSCs) performed by the MGR Safety Assurance Department. This analysis also provides the basis for revision of YMP/90-55Q, Q-List (YMP 1998). The Q-List identifies those MGR SSCs subject to the requirements of DOE/RW-0333P, ''Quality Assurance Requirements and Descriptio… more
Date: August 31, 1999
Creator: Ziegler, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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