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Cermet-fueled reactors for advanced space applications

Description: Cermet-fueled nuclear reactors are attractive candidates for high-performance advanced space power systems. The cermet consists of a hexagonal matrix of a refractory metal and a ceramic fuel, with multiple tubular flow channels. The high performance characteristics of the fuel matrix come from its high strength at elevated temperatures and its high thermal conductivity. The cermet fuel concept evolved in the 1960s with the objective of developing a reactor design that could be used for a wide r… more
Date: December 1, 1987
Creator: Cowan, C. L.; Palmer, R. S.; Taylor, I. N.; Vaidyanathan, S.; Bhattacharyya, S. K. & Barner, J. O.
Item Type: Refine your search to only Article
open access

Cermet fuels for space power systems

Description: A refractory-metal matrix, UN-fueled cermet is a very promising fuel candidate for a wide range of multi-megawatt space reactor systems, e.g., steady-state, flexible duty-cycle, or bimodal, single- or two-phase liquid-metal cooled reactors, or thermionic reactors (Coomes et al. 1986, Takkuhen 1969, Unpublished ANL). Cermet fuel is especially promising for reactor designs that require operational strategies which incorporate rapid power changes because of its anticipated capability to withstand … more
Date: November 1, 1985
Creator: Barner, J. O.; Coomes, E. P.; Williford, R. E. & Neimark, L. A.
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Cermet Transport, Storage, and Disposal Packages Using Depleted Uranium Dioxide and Steel

Description: It is proposed that the steel components of spent nuclear fuel (SNF) storage casks, transport casks, and repository waste packages (WPs) be replaced with a depleted uranium dioxide (DUO{sub 2})-steel cermet consisting of DUO{sub 2} particulates embedded in a continuous-steel phase. Typical cermets use a sandwich-type construction with clean uncontaminated steel layers on both sides of the cermet. Cermets have several potential advantages over other materials of construction: (1) better gamma an… more
Date: August 21, 2001
Creator: Forsberg, Charles W.
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Cermets and method for making same

Description: The present invention is directed to a method for making a wide variety of general-purpose cermets and for radioactive waste disposal from ceramic powders prepared from urea-dispersed solutions containing various metal values. The powders are formed into a compact and subjected to a rapid temperature increase in a reducing atmosphere. During this reduction, one or more of the more readily reducible oxides in the compact is reduced to a selected substoichiometric state at a temperature below the… more
Date: April 1, 1981
Creator: Aaron, W. S.; Kinser, D. L. & Quinby, T. C.
Item Type: Refine your search to only Patent
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Cermets for high level waste containment

Description: Cermet materials are currently under investigation as an alternate for the primary containment of high level wastes. The cermet in this study is an iron--nickel base metal matrix containing uniformly dispersed, micron-size fission product oxides, aluminosilicates, and titanates. Cermets possess high thermal conductivity, and typical waste loading of 70 wt % with volume reduction factors of 2 to 200 and low processing volatility losses have been realized. Preliminary leach studies indicate a lea… more
Date: January 1, 1978
Creator: Aaron, W. S.; Quinby, T. C. & Kobisk, E. H.
Item Type: Refine your search to only Article
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The CERN PS/SL Controls Java Application Programming Interface

Description: The PS/SL Convergence Project was launched in March 1998. Its objective is to deliver a common control as infrastructure for the CERN accelerators by year 2001. In the framework of this convergence activity, a project was launched to develop a Java Application Programming Interface (API) between programs written in the Java language and the PS and SL accelerator equipment. This Java API was specified and developed in collaboration with TJNAF. It is based on the Java CDEV [1] package that has be… more
Date: October 1, 1999
Creator: Deloose, I.; Cuperus, J.; Charrue, P.; Di Maio, F.; Kostro, K.; Eynden, M. Vanden et al.
Item Type: Refine your search to only Article
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Cerocene Revisited: The Electronic Structure of and Interconversion Between Ce2(C8H8)3 and Ce(C8H8)2

Description: New synthetic procedures for the preparation of Ce(cot)2, cerocene, from [Li(thf)4][Ce(cot)2], and Ce2(cot)3 in high yield and purity are reported. Heating solid Ce(cot)2 yields Ce2(cot)3 and COT while heating Ce2(cot)3 with an excess of COT in C6D6 to 65oC over four months yields Ce(cot)2. The solid state magnetic susceptibility of these three organocerium compounds shows that Ce(cot)2 behaves as a TIP (temperature independent paramagnet) over the temperature range of 5-300 K, while that of Ce… more
Date: February 2, 2009
Creator: Walter, Marc D.; Booth, Corwin H.; Lukens, Wayne W. & Andersen, Richard A.
Item Type: Refine your search to only Article
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The Cerro Grande Fire - From Wildfire Modeling Through the Fire Aftermath

Description: The Cerro Grande Fire developed from a prescribed burn by the National Park Service at Bandelier National Monument near Los Alamos, New Mexico. When the burn went out of control and became a wildfire, it attracted worldwide attention because it threatened the birthplace of the atomic bomb, Los Alamos National Laboratory (LANL). Was LANL prepared for a fire? What lessons have been learned?
Date: January 1, 2001
Creator: Rudell, T. M. (Theresa M.) & Gille, R. W. (Roland W.)
Item Type: Refine your search to only Article
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Cerro Grande Fire- From Wildfire Modeling Through the Fire Aftermath

Description: The Cerro Grande Fire developed from a prescibed burn by the National Park Service at Bandelier National Monument near Los Alamos, New Mexico. When the burn went out of control and became a wildfire, i attracted worldwide attention because it threateed the birthplace of the atomic bomb, Los Alamos National Laboratory (LANL)
Date: May 1, 2001
Creator: Rudell, T. & Gille, R.
Item Type: Refine your search to only Article
open access

The Cerro Grande Fire - From Wildlife Modeling Through the Fire Aftermath

Description: The Cerro Grande Fire developed from a prescribed burn by the National Park Service at Bandelier National Monument near Los Alamos, New Mexico. When the burn went out of control and became a wildfire, it attracted worldwide attention because it threatened the birthplace of the atomic bomb, Los Alamos National Laboratory (LANL). Was LANL prepared for a fire? What lessons have been learned?
Date: January 1, 2001
Creator: Rudell, T. M. (Theresa M.) & Gille, R. W. (Roland W.)
Item Type: Refine your search to only Article
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Cerro Grande Fire Impact to Water Quality and Stream Flow near Los Alamos National Laboratory: Results of Four Years of Monitoring

Description: In May 2000, the Cerro Grande fire burned about 7400 acres of mixed conifer forest on the Los Alamos National Laboratory (LANL), and much of the 10,000 acres of mountainside draining onto LANL was severely burned. The resulting burned landscapes raised concerns of increased storm runoff and transport of contaminants by runoff in the canyons traversing LANL. The first storms after the fire produced runoff peaks that were more than 200 times greater than prefire levels. Total runoff volume for th… more
Date: September 15, 2004
Creator: Gallaher, B. M. & Koch, R. J.
Item Type: Refine your search to only Report
open access

Cerro Prieto cold water injection: effects on nearby production wells

Description: The liquid-dominated Cerro Prieto geothermal field of northern Baja California, Mexico has been under commercial exploitation since 1973. During the early years of operation, all waste brines were sent to an evaporation pond built west of the production area. In 1989, cooled pond brines began to be successfully injected into the reservoir along the western boundary of the geothermal system. The injection rate varied over the years, and is at present about 20% of the total fluid extracted. As ex… more
Date: July 1, 1999
Creator: Truesdell, A.H.; Lippmann, M.J.; De Leon, J. & Rodriguez, M.H.
Item Type: Refine your search to only Report
open access

Cerro Prieto Contents of the Technical Information Files Generated at the Field

Description: The creation of a computer data bank for the Cerro Prieto Geothermal Field, resulted from the need for fast and flexible management of the increasing and voluminous information generated from the large number of wells drilled in recent years. The data are needed for updating the thermodynamic evolution of the field in order to define field history and validate mathematical analyses applications. This data bank compiles 20 files with all technical information issued from the time of initial fiel… more
Date: January 20, 1987
Creator: Olmos, Miguel Angel Ayuso
Item Type: Refine your search to only Article
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Cerro Prieto geothermal field: exploration during exploitation

Description: Geological investigations at Momotombo included photogeology, field mapping, binocular microscope examination of cuttings, and drillhole correlations. Among the geophysical techniques used to investigate the field sub-structure were: Schlumberger and electromagnetic soundings, dipole mapping and audio-magnetotelluric surveys, gravity and magnetic measurements, frequency domain soundings, self-potential surveys, and subsurface temperature determinations. The geochemical program analyzed the ther… more
Date: July 1, 1982
Item Type: Refine your search to only Report
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CERT tribal internship program. Final intern report: D`Lisa Penney, 1994

Description: The purpose of this intern`s project was to: education the Nez Perce people of the Hanford situation; begin researching into past and present health effects from the Hanford site; and inform and educate the Nez Perce people of the Hanford site and past exposures. The specific objectives were to begin researching the history of Nez Perce people and Hanford; create an understanding for the importance of this research; define the radiation and risks and how they occur; inform the Nez Perce people … more
Date: September 1, 1998
Item Type: Refine your search to only Report
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CERT tribal internship program. Final intern report: David Conrad, 1993

Description: The intern`s report contains a Master`s thesis entitled, ``An implementation analysis of the US Department of Energy`s American Indian policy as part of its environmental restoration and waste management mission.`` This thesis examines the implementation of a working relationship between the Nez Perce Tribe and the US Department of Energy`s Office of Environmental Restoration and Waste Management at the Hanford reservation. It examines the relationship using a qualitative methodology and three … more
Date: September 1, 1998
Item Type: Refine your search to only Report
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CERT tribal internship program. Final intern report: Karen Sandoval, 1994

Description: The purpose of the project was to: create a working relationship between CERT and Colorado State University (CSU); involve and create relationships among individuals and departments at CSU; empower Native communities to run their own affairs; establish programs for the benefit of Tribes; and create Native American Program Development Office at CSU. The intern lists the following as the project results: revised a Native American Program Development document; confirmation from 45 departments acro… more
Date: September 1, 1998
Item Type: Refine your search to only Report
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CERT tribal internship program. Final intern report: Karen Sandoval, 1996

Description: This intern report consists of the workshop handbook for the Comprehensive Environmental and Natural Resource Management Planning workshop presented by the Council of Energy Resource Tribes. The workshop objectives were to foster and awareness of integrated resource management rationale; present the fundamental elements of an integrated approach; explain what distinguishes this approach from mainstream strategies; discuss how worldview and philosophy shape action and policy; present ways in whi… more
Date: September 1, 1998
Item Type: Refine your search to only Report
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CERT tribal internship program. Final intern report: Lewis Yellowrobe, 1995

Description: The purpose of this internship was to present state legislators with the history and an overview of the Department of Energy`s policies towards occupational health and safety during cleanup of nuclear weapons production facilities. The approach used library research and phone and personal interviews to acquire information on DOE policies. This intern report contains the final report to legislators entitled ``Environmental restoration and waste management: Worker health and safety concerns durin… more
Date: September 1, 1998
Item Type: Refine your search to only Report
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CERT tribal internship program. Final intern report: Maria Perez, 1994

Description: Historically, American Indian Tribes have lacked sufficient numbers of trained, technical personnel from their communities to serve their communities; tribal expertise in the fields of science, business and engineering being extremely rare and programs to encourage these disciplines almost non-existent. Subsequently, Tribes have made crucial decisions about their land and other facets of Tribal existence based upon outside technical expertise, such as that provided by the United States governme… more
Date: September 1, 1998
Item Type: Refine your search to only Report
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CERT tribal internship program. Final intern report: Melinda Jacquez, 1995

Description: The purpose of the intern project was to write a comprehensive booklet on all state legislation proposed in 1995 on Native American issues. A second purpose was to contact tribal governments and request an ordinance, law or resolution on hazardous and nuclear waste transportation. This intern report contains a summary of bills proposed in 37 state legislatures pertaining to Native American issues. Time ran out before the second project objective could be met.
Date: September 1, 1998
Item Type: Refine your search to only Report
open access

Certain aspects of the melting, casting and welding of Ni{sub 3}Al alloys

Description: Two alloys under development for castings are IC221M, (nominal composition Ni-8Al-7.7Cr-1.4Mo-1.7Zr wt %), and IC396M (nominal composition Ni-8Al-7.7Cr-3Mo-0.85Zr wt %). These alloys can be melted and cast using the techniques normally used for Ni-based materials. Oxidation of the liquid alloys can be controlled by vacuum processing or inert gas cover during processing. The liquid alloys can react with silica and zircon sands during casting, but this can be controlled through the use of appropr… more
Date: June 1, 1994
Creator: Santella, M. L. & Sikka, V. K.
Item Type: Refine your search to only Article
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