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Development of ultrafiltration and inorganic adsorbents for reducing volumes of low-level and intermediate-level liquid waste: January--March 1978

Description: The exposure of noncellulosic ultrafiltration membranes to a radioactive environment simulating up to 24 months of exposure to a beta dose of 10 ..mu..Ci/cm/sup 3/ and a gamma dose of 10/sup -5/ ..mu..Ci/cm/sup 3/ did not show any conclusive evidence of membrane degradation. Viscosity measurements for control membranes and irradiated membranes indicate no changes in polymer molecular weight were caused by the radiation exposure. This, in turn, suggests no physical or mechanical degradation took… more
Date: April 27, 1978
Creator: Koenst, J. W.; Herald, W. R. & Roberts, R. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiation Problems Associated With the Handling of the Actinide Elements

Description: The hazards connected with the handling of actinide elements are surveyed. Emphasis is placed on Th, U, Np, and Pu. It is pointed out that the chemical toxicity of the actinides is usually minor when compared with radiochemi cal toxicity. Inhalation and ingestion are the important routes of entry but direct injection into the blood stream through wounds also requires consideration. Special enclosures, such as glove boxes, function primarily to minimize the risk of inhalation and aid in confinem… more
Date: April 1, 1962
Creator: Steindler, M.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Health, Safety, and Environment Division: Annual progress report 1987

Description: The primary responsibility of the Health, Safety, and Environment (HSE) Division at the Los Alamos National Laboratory is to provide comprehensive occupational health and safety programs, waste processing, and environment protection. These activities are designed to protect the worker, the public, and the environment. Many disciplines are required to meet the responsibilities, including radiation protection, industrial hygiene, safety, occupational medicine, environmental science, epidemiology,… more
Date: April 1, 1988
Creator: Rosenthal, M.A. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Role of gas pressure and lateral stress on blistering

Description: Both gas pressure in bubbles and lateral stress have been suggested as primary causes of blistering. An analysis of both mechanisms is presented, and the conditions for blistering are examined. To realistically predict the gas pressure in bubbles, a recently derived high-density equation of state for helium is utilized.
Date: April 1, 1980
Creator: Wolfer, W. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Electron irradiation effects in YBa/sub 2/Cu/sub 3/O/sub 7-delta/ single crystals

Description: Defect structures in YBa/sub 2/Cu/sub 3/O/sub 7/minus/delta/ produced by electron irradiation at 300/degree/K, were investigated by transmission electron microscopy. Threshold energies for the production of visible defects were determined to b 152 keV and 131 keV (+- 7 keV) in directions near the a- and b-axes, respectively (b > a, both perpendicular to c, the long axis in the orthorhombic structure). During above-threshold irradiations in an electron flux of 3 x 10 /sup 18/ cm/sup /minus/2/s/s… more
Date: April 1, 1988
Creator: Kirk, M.A.; Baker, M.C.; Liu, J.Z.; Lam, D.J. & Weber, H.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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FUEL ELEMENT DEVELOPMENT PROGRAM FOR THE PEBBLE BED REACTOR. Final Report

Description: >The basic fuel element consisted of a uniform dispersion of fuel in a 1 1/2 inch diameter graphite sphere. Ceramic coatings for the retention of fission products were studied. It was found-that molecularly deposited'' ceramics such as alumina, siliconized silicon carbide, and pyrolytic carbon were excellent barriers to fission product leakage. The most advantageous location for ceramic coatings was found to be on the individual fuel particles, where the coating was subject to smaller forces an… more
Date: April 30, 1961
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Postirradiation cladding strength under biaxial loading with an increasing temperature ramp. [LMFBR]

Description: The flow behavior of unirradiated 20% cold worked AISI 316 tubing during constant pressure, increasing temperature tests was modeled with a constitutive relation approach; strain below approximately 0.2% came predominantly from an anelastic portion of the model while higher strains were predominantly plastic. The flow of cladding sections from irradiated fuel pins was largely restricted to the strain region attributed to anelastic deformation due to reduced ductility compared to unirradiated tu… more
Date: April 1, 1980
Creator: Duncan, D. R. & Hunter, C. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Life sciences

Description: This document is the 1989--1990 Annual Report for the Life Sciences Divisions of the University of California/Lawrence Berkeley Laboratory. Specific progress reports are included for the Cell and Molecular Biology Division, the Research Medicine and Radiation Biophysics Division (including the Advanced Light Source Life Sciences Center), and the Chemical Biodynamics Division. 450 refs., 46 figs. (MHB)
Date: April 1, 1991
Creator: Day, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effect of pressure on the transient swelling rate of oxide fuel. [LMFBR]

Description: An analysis of the transient swelling rate of oxide fuel, based on fission-gas bubble conditions calculated with the FRAS3 code, has been developed and implemented in the code. The need for this capability arises in the coupling of the FRAS3 fission-gas analysis code to the FPIN fuel-pin mechanics code. An efficient means of closely coupling the calculations of swelling strains and stresses between the modules is required. The present analysis provides parameters that allow the FPIN calculation… more
Date: April 1, 1982
Creator: Gruber, E.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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UV dose-effect relationships and current protection exposure standards

Description: In this paper we have attempted to quantify the health effects in man of uv-radiation exposure of wavelengths from 240 nm to 320 nm. Exposure to uv in this region could result in the formation of skin cancer or premature aging in man. The induction of cancer by uv radiation results from changes in genetic material. We have used the DNA action spectrum coupled with the uv skin cancer data available in the literature to derive the dose-effect relationships. The results are compared against the cu… more
Date: April 1, 1982
Creator: Singh, M.S. & Campbell, G.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Guide to reducing radiation exposure to as low as reasonably achievable (ALARA)

Description: This document is designed to provide DOE contractor personnel with general guidance regarding programs and techniques to reduce radiation exposures to as low as reasonably achievable (ALARA). Thus it is directed towards a broad audience, and should have special relevance and interest for operating management as well as radiation protection personnel. It is well recognized that each contractor has needs specific and critical to its radiation protection program. Hence no single set of specific an… more
Date: April 1, 1980
Creator: Kathren, R.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radioprotective drugs: a synopsis of current research and a proposed research plan for the Federal Emergency Management Agency. Final report

Description: FEMA has broad roles in the management of disasters potentially involving substantial amounts of radioactive contamination. These could be either peacetime or wartime disasters. A meeting was held in March 1985 to see if there are any research contributions that FEMA might reasonably make in the area of radioprotective drugs that would substantially enhance its ability to perform its mission. The other federal agencies presently sponsoring research in the field were represented at the meeting. … more
Date: April 1, 1985
Creator: Hickman, R. & Anspaugh, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Wear and corrosion performance of metallurgical coatings in sodium

Description: The friction, wear, and corrosion performance of several metallurgical coatings in 200 to 650/sup 0/C sodium are reviewed. Emphasis is placed on those coatings which have successfully passed the qualification tests necessary for acceptance in breeder reactor environments. Tests include friction, wear, corrosion, thermal cycling, self-welding, and irradiation exposure under as-prototypic-as-possible service conditions. Materials tested were coatings of various refractory metal carbides in metall… more
Date: April 24, 1980
Creator: Johnson, R. N. & Farwick, D. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Cancer risks and neutron RBE's from Hiroshima and Nagasaki

Description: The new radiation dose estimates for Hiroshima and Nagasaki are here combined with epidemiologic data from the A-bomb survivors and examined radiobiologically for compatability with other human and experimental data. The new doses show certain improvements over the original T65 doses. However, they suggest for chronic granulocytic leukemia, total malignancies, and chromosome aberrations, at neutron doses of 1 rad, RBEs in excess of 100, higher than expected from other findings. This and other i… more
Date: April 30, 1982
Creator: Dobson, R.L. & Straume, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Irradiation effects on the electrochemistry and corrosion resistance of stainless steel

Description: Nickel-ion irradiation at 500{degrees}C is shown to have a strong effect on the surface electrochemistry and intergranular corrosion of stainless steel. Measured current densities in a 1N H{sub 2}SO{sub 4} solution at room temperature are increased at active-passive, passive, and transpassive potentials. Irradiation effects on the current decay behavior and susceptibility to intergranular corrosion were similar for a microcrystalline, fine-grained stainless alloy and for a very large-grained st… more
Date: April 1, 1992
Creator: Bruemmer, S. M.; Arey, B. W.; Windisch, C. F., Jr. & Cole, J. I.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Divertor material evaluation system at DIII-D

Description: The DIvertor Material Evaluation System (DIMES) at DIII-D is a collaborative program between General Atomics, Sandia National Laboratories (SNL), and Argonne National Laboratory (ANL). This program was initiated in response to the need for understanding the interaction between the plasma and divertor surface materials in tokamaks. Material erosion, tritium retention, disruption effects and material transport are very important topics for the design of ITER. The first phase of the DIMES study is… more
Date: April 1, 1992
Creator: Wong, C. P. C.; Jungle, R.; Phelps, R. D.; Politzer, P.; Puhn, F.; West, W. P. (General Atomics, San Diego, CA (United States)) et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Repair of uv damaged DNA: Genes and proteins of yeast and human

Description: Our objectives are to determine the molecular mechanism of the incision step of excision repair of ultraviolet (UV) light damaged DNA in eukaryotic organisms, using the yeast Saccharomyces cerevisiae as a model system, and to study the human homologs of yeast excision repair and postreplication repair proteins progress is described.
Date: April 1, 1992
Creator: Prakash, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiation damage measurements on rock salt and other minerals for waste disposal applications. Quarterly report, January 1, 1980-March 31, 1980

Description: Different aspects of radiation damage in both synthetic NaCl crystals and various natural rock salt samples as well as granite, basalt and other minerals which will be important for radioactive waste disposal applications are being investigated. The principal means of measuring radiation damage is the determination of F-center concentrations, and the concentration and size of sodium metal colloid particles. Formation of these and other defects during irradiation and the annealing of defects and… more
Date: April 10, 1980
Creator: Swyler, K. J.; Loman, J. M.; Teutonico, L. J.; Elgort, G. E. & Levy, P. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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IRRADIATION OF A U-2% Zr FUEL TUBE IN THE VBWR

Description: A coextruded 2-inch-diameter tubular fuel element of U-2 wt% Zr alloy clad with Zircaloy-2 was irradiated in the Vallecitos Boiling Water Reactor to 1280 Mwd/t burnup with a maximum core temperature of 433 deg C. The purpose of this irradiation was to determine the dimensional stability of the alloy under conditions approaching those contemplated for D/sub 2/O-cooled power reactors. Successive dimensional measurements revealed a sharp change in swelling rate between 700 and 1280 Mwd/t burnup. T… more
Date: April 1, 1962
Creator: Quigley, H.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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FY 1992 revised task plans for the Hanford Environmental Dose Reconstruction Project

Description: The purpose of the Hanford Environmental Dose Reconstruction (HEDR) Project is to estimate radiation doses from Hanford Site operations since 1944 to populations and individuals. The primary objectives of work to be performed in FY 1992 is to determine the appropriate scope (space, time, and radionuclides, pathways and individuals/population groups) and accuracy (level of uncertainty in dose estimates) for the project. Another objective is to use a refined computer model to estimate Native Amer… more
Date: April 1, 1992
Creator: Shipler, D.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of the distribution of absorbed dose in child phantoms exposed to diagnostic medical x rays

Description: The purpose of this study was to determine, by theoretical calculation and experimental measurement, the absorbed dose distributions in two heterogeneous phantoms representing one-year- and five-year-old children from typical radiographic examinations for those ages. Theoretical work included the modification of an existing internal dose code which uses Monte Carlo methods to determine doses within the Snyder-Fisher mathematical phantom. A Ge(Li) detector and a pinhole collimator were used to m… more
Date: April 1, 1978
Creator: Chen, W. L.; Poston, J. W. & Warner, G. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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DOSEXPRT: A bioassay dosimetry code for Martin Marietta Energy Systems, Inc

Description: The bioassay code DOSEXPRT was developed for Martin Marietta Energy Systems, Inc., to provide compliance with Department of Energy (DOE) Order 5480, Chapter 11. DOSEXPRT computes the intake of a radionuclide in any year (considering both acute and chronic intakes) from in vivo measurements of the retained activity and/or measurements of the activity in excreta. The committed effective and organ doses for the intake are computed as well as the effective and organ doses expected to be received in… more
Date: April 1, 1992
Creator: Ward, R. C. & Eckerman, K. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Psychological aspects of personnel contamination

Description: This paper discusses some of the major emotional considerations involved in the treatment of people who have been contaminated with potentially hazardous materials. Although the principal focus is the treatment of people trained to work with these materials, an attempt is also made to extend these methods to people having little or no knowledge of such matters. Accidents always result in emotional trauma. When the accident involves radioactive or other potentially toxic, carcinogenic, or mutage… more
Date: April 1, 1985
Creator: Wilson, R. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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