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Record of the first meeting of the Joint Coordinating Committee for Radiation Effects Research (open access)

Record of the first meeting of the Joint Coordinating Committee for Radiation Effects Research

This conference was held July 27--28, 1994 in Moscow. The main purpose of the meeting was to implement an agreement between the Russian Federation and the US to facilitate cooperative research on health and environmental effects of radiation. It was hoped that the exchange of information would provide a good basis for employing new scientific knowledge to implement practical measures to facilitate the rehabilitation of radioactively contaminated areas and to treat radiation illnesses. The Russian Federation suggested five main scientific areas for cooperative research. They will prepare proposals on 4--5 projects within the scope of the scientific areas discussed and forward them to the US delegation for consideration of the possibility to facilitate joint research.
Date: December 31, 1994
Creator: unknown
Object Type: Article
System: The UNT Digital Library
SECONDARY MINERAL EVIDENCE OF LARGE-SCALE WATER TABLE FLUCTUATIONS AT YUCCA MOUNTAIN, NYE COUNTY, NEVADA (open access)

SECONDARY MINERAL EVIDENCE OF LARGE-SCALE WATER TABLE FLUCTUATIONS AT YUCCA MOUNTAIN, NYE COUNTY, NEVADA

None
Date: December 29, 1997
Creator: J.F. WHELAN, R.J. MOSCATI & B. MARSHALL
Object Type: Report
System: The UNT Digital Library
Summary of Generation-IV transmutation impacts. (open access)

Summary of Generation-IV transmutation impacts.

An assessment of the potential role of Generation IV nuclear systems in an advanced fuel cycle has been performed. The Generation IV systems considered are the thermal-spectrum VHTR and SCWR, and the fast-spectrum GFR, LFR, and SFR. This report addresses the impact of each system on advanced fuel cycle goals, particularly related to waste management and resource utilization. The transmutation impact of each system was also assessed, along with variant designs for transuranics (TRU) burning. The base fuel cycle for the thermal reactor concepts (VHTR and SCWR) is a once-through fuel cycle using low-enriched uranium fuels. The higher burnup and thermal efficiency of the VHTR gives an advantage in terms of heavy-metal waste mass and volume, with lower decay heat and radiotoxicity of the spent fuel per electrical energy produced, compared to a PWR. Fuel utilization might, however, be worse compared to the PWR, because of the higher fuel enrichment essential to meeting the VHTR system design requirements. The SCWR concept also featured improved thermal efficiency; however, benefits are reduced by the lower fuel discharge burnup. The base fuel cycle for the fast reactor concepts (SFR, GFR, and LFR) is a closed fuel cycle using recycled TRU and depleted uranium …
Date: August 3, 2005
Creator: Taiwo, T. A. & Hill, R. N.
Object Type: Report
System: The UNT Digital Library
Operation of the APS photoinjector drive laser system. (open access)

Operation of the APS photoinjector drive laser system.

The APS photoinjector drive laser system has been in operation since 1999 and is achieving a performance level exceeding the requirement of stable operation of the LEUTL FEL system. One remarkable number is the UV energy stability of better than 2% rms, sometimes less than 1% rms. This report summarizes the operation experience of the laser system and the improvements made along the way. We also outline the route of upgrade of the system and some frontier laser research and development opportunities in ultrabright electron beam generation.
Date: January 24, 2005
Creator: Li, Y.
Object Type: Report
System: The UNT Digital Library
Modeling report of the CEA cadarache MINERVE reactor for the OSMOSE project. (open access)

Modeling report of the CEA cadarache MINERVE reactor for the OSMOSE project.

The OSMOSE program (Oscillation in Minerve of isotopes in ''Eupraxic'' spectra) is a collaboration between the U.S. Department of Energy (DOE) and the Commissariat a l' Energie Atomique (CEA). It aims at measuring integral absorption rates of minor actinides by the oscillation technique in the MINERVE experimental facility located at the CEA Cadarache Research Center. The OSMOSE program also includes a complete analytical program to understand and resolve potential discrepancies between calculated and measured values. The OSMOSE program began in 2001 and will continue until 2013. The Argonne National Laboratory has developed Monte Carlo and deterministic calculation models of the MINERVE facility to determine core and safety parameters such as axial and radial fission rate distributions, control rod worth, spectral indices, and the reactivity worth of oscillated samples. Oscillation samples include calibration samples with different uranium enrichments and boron concentrations and the OSMOSE samples--separated actinides including {sup 232}Th, {sup 233}U, {sup 234}U, {sup 235}U, {sup 236}U, {sup 238}U, {sup 237}Np, {sup 238}Pu, {sup 239}Pu, {sup 240}Pu, {sup 241}Pu, {sup 242}Pu, {sup 241}Am, {sup 243}Am, {sup 244}Cm and {sup 245}Cm. Seven different neutron spectra will be created in the MINERVE facility: an overmoderated UO{sub 2} matrix (representative of a fuel processing …
Date: February 25, 2005
Creator: Klann, R.; Perret, G.; Hudelot, J. P. & Antony, M.
Object Type: Report
System: The UNT Digital Library
Validation on the thermal effect of roof with the spraying and green plants in an insulated building (open access)

Validation on the thermal effect of roof with the spraying and green plants in an insulated building

In recent years, roof-spraying and rooftop lawns has proved effective on roofs with poor thermal insulation. However, roofs of most buildings have insulating material to provide thermal insulation during the winter. The effects of such a practice have not previously been quantified. In this study, the authors conducted measurements of an insulated building to quantify the thermal effects of roof-spraying and rooftop lawns. Roof-spraying did not significantly reduce cooling loads, and required significant amounts of water. The conclusion is that roof spraying is not suitable for buildings with well-insulated roofs. Rooftop lawns, however, significantly stabilized the indoor temperature while additionally helping to mitigate the heat island phenomenon.
Date: March 20, 2004
Creator: Zhou, Nan; Gao, Weijun; Nishida, Masaru & Ojima, Toshio
Object Type: Article
System: The UNT Digital Library
Transmission electron microscopy analysis of corroded metal waste forms. (open access)

Transmission electron microscopy analysis of corroded metal waste forms.

This report documents the results of analyses with transmission electron microscopy (TEM) combined with energy dispersive X-ray spectroscopy (EDS) and selected area electron diffraction (ED) of samples of metallic waste form (MWF) materials that had been subjected to various corrosion tests. The objective of the TEM analyses was to characterize the composition and microstructure of surface alteration products which, when combined with other test results, can be used to determine the matrix corrosion mechanism. The examination of test samples generated over several years has resulted in refinements to the TEM sample preparation methods developed to preserve the orientation of surface alteration layers and the underlying base metal. The preservation of microstructural spatial relationships provides valuable insight for determining the matrix corrosion mechanism and for developing models to calculate radionuclide release in repository performance models. The TEM results presented in this report show that oxide layers are formed over the exposed steel and intermetallic phases of the MWF during corrosion in aqueous solutions and humid air at elevated temperatures. An amorphous non-stoichiometric ZrO{sub 2} layer forms at the exposed surfaces of the intermetallic phases, and several nonstoichiometric Fe-O layers form over the steel phases in the MWF. These oxide layers adhere …
Date: April 15, 2005
Creator: Dietz, N. L.
Object Type: Report
System: The UNT Digital Library
Fast neutrons incident on rotors : - tantalum. (open access)

Fast neutrons incident on rotors : - tantalum.

Reports in the Argonne National Laboratory Nuclear Data and Measurement Series present results of studies in the field of microscopic nuclear data. The primary objective of the series is the dissemination of information in the comprehensive form required for nuclear technology applications. This series is devoted to: (a) measured microscopic nuclear parameters, (b) experimental techniques and facilities employed in measurements, (c) the analysis, correlation and interpretation of nuclear data, and (d) the compilation and evaluation of nuclear data.
Date: March 21, 2005
Creator: Smith, A. B.
Object Type: Report
System: The UNT Digital Library
Impact of spectral transition zone in reference ENIGMA configuration. (open access)

Impact of spectral transition zone in reference ENIGMA configuration.

The gas-cooled fast reactor (GFR) is one of six advanced nuclear energy systems being studied under the auspices of the Gen IV International Forum (GIF). In a bilateral International Nuclear Energy Research Initiative (I-NERI) project French and U.S. national laboratories, industry, and universities are collaborating on the development of the GFR. This effort is led by the ANL in the U.S. and the CEA in France. Some of the attractions of the GFR include: (1) Hard spectrum and core breeding ratio, BR {approx} 1. These features allow minimal waste production, improved transmutation capability, optimal and flexible use of natural resources, potentially better economy (because of use of higher power density relative to current thermal gas-cooled systems), and improved non-proliferation (no fertile blanket); (2) Temperature resistant fuel and structure elements that are favorable to tight fission product confinement and system operation at high temperature; (3) High temperature and transparent helium (He) gas coolant that allows a high thermodynamic conversion efficiency, other energy applications (e.g., hydrogen production), and ease of in-service inspection and repair; and (4) Possible direct energy conversion cycle leading to a simpler design, increased conversion efficiency, and lower investment costs. The French strategy for advanced systems includes the development …
Date: October 5, 2005
Creator: Aliberti, G.; Palmiotti, G.; Taiwo, T. A. & Tommasi, J.
Object Type: Report
System: The UNT Digital Library
Sodium pool fire phenomena, sodium pool fire modeling in SOFIRE II, and SOFIRE II calculations for the AFR-100 (open access)

Sodium pool fire phenomena, sodium pool fire modeling in SOFIRE II, and SOFIRE II calculations for the AFR-100

None
Date: November 12, 2012
Creator: Sienicki, J. J. & Moisseytsev, A. (Nuclear Engineering Division)
Object Type: Report
System: The UNT Digital Library
Safeguards Approaches for Very Long-Term Storage of Spent Fuel (open access)

Safeguards Approaches for Very Long-Term Storage of Spent Fuel

None
Date: October 11, 2013
Creator: Kollar, L.; Mendez-Torres, A.; Diaz Marcano, H.; Therios, I. (Nuclear Engineering Division) Nuclear Engineering Division & Laboratory), (Savannah River National
Object Type: Report
System: The UNT Digital Library
Transportation Research and Analysis Computing Center (TRACC) Year 5 Quarter 4 Progress Report. (open access)

Transportation Research and Analysis Computing Center (TRACC) Year 5 Quarter 4 Progress Report.

None
Date: January 23, 2012
Creator: Ley, H. (Energy Systems)
Object Type: Report
System: The UNT Digital Library
NEAMS: The Nuclear Energy Advanced Modeling and Simulation Program (open access)

NEAMS: The Nuclear Energy Advanced Modeling and Simulation Program

None
Date: June 17, 2013
Creator: Bradley, K.
Object Type: Report
System: The UNT Digital Library
Irradiation Experiment Conceptual Design Parameters for MITR LEU U-Mo Fuel Conversion (open access)

Irradiation Experiment Conceptual Design Parameters for MITR LEU U-Mo Fuel Conversion

None
Date: July 16, 2013
Creator: Wilson, E. H.; Newton, T. H.; Hu, L.; Dunn, F. E. (Nuclear Engineering Division) & Laboratory), (MIT Nuclear Reactor
Object Type: Report
System: The UNT Digital Library
Report on thermal aging effects on tensile properties of advanced austenitic steels. (open access)

Report on thermal aging effects on tensile properties of advanced austenitic steels.

None
Date: August 23, 2012
Creator: Li, M.; Natesan, K.; Soppet, W.K.; Listwan, J.T. & Rink, D.L. (Nuclear Engineering Division)
Object Type: Report
System: The UNT Digital Library
Soil carbon response to rising temperature (open access)

Soil carbon response to rising temperature

None
Date: September 7, 2012
Creator: Montz, A.; Kotamarthi, V. R. & Bellout, H.
Object Type: Report
System: The UNT Digital Library
Preliminary Accident Analyses for Conversion of the University of Missouri Research Reactor (MURR) from Highly-Enriched to Low-Enriched Uranium Prepared by (open access)

Preliminary Accident Analyses for Conversion of the University of Missouri Research Reactor (MURR) from Highly-Enriched to Low-Enriched Uranium Prepared by

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Date: July 8, 2013
Creator: Feldman, E. E.; Foyto, L. P.; Kutikkad, K.; McKibben, J. C.; Peters, N. J.; Stevens, J. G. et al.
Object Type: Report
System: The UNT Digital Library
Irradiation Experiment Conceptual Design Parameters for MURR LEU U-Mo Fuel Conversion Revision (open access)

Irradiation Experiment Conceptual Design Parameters for MURR LEU U-Mo Fuel Conversion Revision

None
Date: June 28, 2013
Creator: Stillman, J.; Feldman, E.; Stevens, J.; Wilson, E.; Foyto, L.; Kutikkad, K. et al.
Object Type: Report
System: The UNT Digital Library
Guidelines for beamline and front-end radiation shielding design at the Advanced Photon Source, rev. 4 (open access)

Guidelines for beamline and front-end radiation shielding design at the Advanced Photon Source, rev. 4

None
Date: November 29, 2012
Creator: Fernandez, P. (APS Engineering Support Division)
Object Type: Report
System: The UNT Digital Library
Verification and validation of the PLTEMP/ANL code for thermal hydraulic analysis of experimental and test reactors (open access)

Verification and validation of the PLTEMP/ANL code for thermal hydraulic analysis of experimental and test reactors

None
Date: December 3, 2012
Creator: Kalimullah, M.; Olson, A.O.; Feldman, E.E.; Hanan, N. & Dionne, B. (Nuclear Engineering Division)
Object Type: Report
System: The UNT Digital Library
NEAMS Update. Quarterly Report for October - December 2012 (open access)

NEAMS Update. Quarterly Report for October - December 2012

None
Date: March 12, 2013
Creator: Bradley, K.
Object Type: Report
System: The UNT Digital Library
Water resource assessment of geothermal resources and water use in geopressured geothermal systems. (open access)

Water resource assessment of geothermal resources and water use in geopressured geothermal systems.

None
Date: March 11, 2013
Creator: Clark, C. E.; Harto, C. B. & Troppe, W. A.
Object Type: Report
System: The UNT Digital Library
Verification test suite for systems analysis tools (open access)

Verification test suite for systems analysis tools

None
Date: February 21, 2013
Creator: Sumner, T.; Hu, R. & Fanning, T. H. (Nuclear Engineering Division)
Object Type: Report
System: The UNT Digital Library
Performance analysis of Darshan 2.2.3 on the Cray XE6 platform. (open access)

Performance analysis of Darshan 2.2.3 on the Cray XE6 platform.

None
Date: November 15, 2012
Creator: Carns, P.; Harms, K.; Latham, R. & Ross, R. (Mathematics and Computer Science)
Object Type: Report
System: The UNT Digital Library