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Review of issues relevant to acceptable risk criteria for nuclear waste management

Description: Development of acceptable risk criteria for nuclear waste management requires the translation of publicly determined goals and objectives into definitive issues which, in turn, require resolution. Since these issues are largely of a subjective nature, they cannot be resolved by technological methods. Development of acceptable risk criteria might best be accomplished by application of a systematic methodology for the optimal implementation of subjective values. Multi-attribute decision analysis … more
Date: February 22, 1978
Creator: Cohen, J.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Savannah River Laboratory monthly report, February 1992

Description: This report is a progress report for the Savannah River Laboratory for the month of February 1992. The progress and activities in six categories were described in the report. The categories are reactor, tritium, separations, environmental, waste management, and general. Each category described numerous and varied activities. Some examples of these activities described are such things as radiation monitoring, maintenance, modifications, and remedial action.
Date: February 1, 1992
Creator: Ferrell, J.M. (comp.) & Ice, L.W. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Rankine bottoming cycle safety analysis. Final report

Description: Vector Engineering Inc. conducted a safety and hazards analysis of three Rankine Bottoming Cycle Systems in public utility applications: a Thermo Electron system using Fluorinal-85 (a mixture of 85 mole % trifluoroethanol and 15 mole % water) as the working fluid; a Sundstrand system using toluene as the working fluid; and a Mechanical Technology system using steam and Freon-II as the working fluids. The properties of the working fluids considered are flammability, toxicity, and degradation, an… more
Date: February 1, 1980
Creator: Lewandowski, G.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Review of Overall Safety Manual for space nuclear systems. An evaluation of a nuclear safety analysis methodology for plutonium-fueled space nuclear systems

Description: As part of its duties in connection with space missions involving nuclear power sources, the Office of Nuclear Safety (ONS) of the Office of Assistant Secretary for Environmental Protection, Safety, and Emergency Preparedness has been assigned the task of reviewing the Overall Safety Manual (OSM) (memo from B.J. Rock to J.R. Maher, December 1, 1982). The OSM, dated July 1981 and in four volumes, was prepared by NUS Corporation, Rockville, Maryland, for the US Department of Energy. The OSM provi… more
Date: February 1, 1984
Creator: Coleman, J. & Inhaber, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low-exposure tritium radiotoxicity in mammals

Description: Studies of tritium radiotoxicity involving chronic /sup 3/H0H exposures in mammals demonstrate in both mice and monkeys that biological effects can be measured following remarkably low levels of exposure - levels in the range of serious practical interest to radiation protection. These studies demonstrate also that deleterious effects of /sup 3/H beta radiation do not differ significantly from those of gamma radiation at high exposures. In contrast, however, at low exposures tritium is signific… more
Date: February 11, 1982
Creator: Dobson, R.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Mort User's Manual: For use with the Management Oversight and Risk Tree analytical logic diagram

Description: This report contains the User's Manual for MORT (Management Oversight and Risk Tree), a logic diagram in the form of a work sheet'' that illustrates a long series of interrelated questions. MORT is a comprehensive analytical procedure that provides a disciplined method for determining the causes and contributing factors of major accidents. Alternatively, it serves as a tool to evaluate the quality of an existing system. While similar in many respects to fault tree analysis, MORT is more general… more
Date: February 1, 1992
Creator: Knox, N.W. & Eicher, R.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Repository post-sealing risk analysis using MACRO. [MACRO]

Description: MACRO, a code to propagate probability distributions through a set of linked models, is currently under development at Lawrence Livermore Laboratory. An early version of this code, MACRO1, has been used to assess post-sealing dose to man for simple repository and site models based on actual site data.
Date: February 14, 1980
Creator: Kaufman, A. M.; Edwards, L. L. & O'Connell, W. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Light-water reactor accident classification

Description: The evolution of existing classifications and definitions of light-water reactor accidents is considered. Licensing practice and licensing trends are examined with respect to terms of art such as Class 8 and Class 9 accidents. Interim definitions, consistent with current licensing practice and the regulations, are proposed for these terms of art.
Date: February 1, 1980
Creator: Washburn, B. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Some fundamental aspects of fault-tree and digraph-matrix relationships for a systems-interaction evaluation procedure

Description: Recent events, such as Three Mile Island-2, Brown's Ferry-3, and Crystal River-3, have demonstrated that complex accidents can occur as a result of dependent (common-cause/mode) failures. These events are now being called Systems Interactions. A procedure for the identification and evaluation of Systems Interactions is being developed by the NRC. Several national laboratories and utilities have contributed preliminary procedures. As a result, there are several important views of the Systems Int… more
Date: February 28, 1982
Creator: Alesso, H.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Estimated airborne release of plutonium from the Exxon Nuclear Mixed Oxide Fuel Plant at Richland, Washington as a result of postulated damage from severe wind and earthquake hazard

Description: The potential airborne releases of plutonium from postulated damage sustained by the Exxon Nuclear Company's Mixed Oxide Fabrication Plant at Richland, Washington, as a result of various levels of wind and earthquake hazard, are estimated. The releases are based on damage scenarios that range up to 250 mph for wind hazard and in excess of 1.0 g ground acceleration for seismic hazard, which were developed by other specialists. The approaches and factors used to estimate the releases (inventories… more
Date: February 1, 1980
Creator: Mishima, J.; Schwendiman, L.C.; Ayer, J.E. & Owzarski, E.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiation carcinogenesis in man: influence of dose-response models and risk projection models in the estimation of risk coefficients following exposure to low-level radiation

Description: The somatic effects of concern in human populations exposed to low doses and low dose rates of ionizing radiations are those that may be induced by mutation in individual cells, singly or in small numbers. The most important of these is considered to be cancer induction. Current knowledge of the carcinogenic effect of radiation in man has been reviewed in two recent reports: the 1977 UNSCEAR Report; and the 1980 BEIR-III Report. Both reports emphasize that cancers of the breast, thyroid, hemato… more
Date: February 1, 1982
Creator: Fabrikant, Jacob I.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Environmental radiological studies downstream from the Rancho Seco Nuclear Power Generating Station, 1985

Description: Information compiled in 1985 while assessing the environmental impact of radionuclides previously discharged with aqueous releases from the Rancho Seco Nuclear Power Generating Plant is presented. In October 1984, the quantities of gamma-emitting radionuclides in water discharged to Clay Creek from the plant were reduced below operationally defined detection limits for liquid effluents. However, radionuclides previously discharged persist in the downstream environment and are found in many aqua… more
Date: February 6, 1986
Creator: Noshkin, V. E.; Wong, K. M.; Eagle, R. J.; Brunk, J. L. & Jokela, T. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Seismic risk assessment of a BWR: status report

Description: The seismic risk methodology developed in the US NRC Seismic Safety Margins Research Program (SSMRP) was demonstrated by its application to the Zion nuclear power plant, a pressurized water reactor (PWR). A detailed model of Zion, including systems analysis models (initiating events, event trees, and fault trees), SSI and structure models, and piping models was developed and analyzed. The SSMRP methodology can equally be applied to a boiling water reactor (BWR). To demonstrate its applicability… more
Date: February 1, 1985
Creator: Chuang, T. Y.; Bernreuter, D. L.; Wells, J. E. & Johnson, J. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Preliminary designs for OTEC Stationkeeping Subsystems (SKSS). Summary report

Description: This summary report presents a condensation of the designs as developed from requirements and concept selection to preliminary design. The study consists of the following six tasks: (1) Design requirements: establish design environmental conditions and criteria. Develop methodology to both assess SKSS reliability and performance, and minimize life cycle costs. (2) Conceptual design: develop at least two SKSS conceptual designs for both barge and spar platform (eight in all). Consider commercial… more
Date: February 15, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Technical Risk Rating of DOE Environmental Projects - 9153

Description: The U.S. Department of Energy's Office of Environmental Management (DOE-EM) was established to achieve the safe and compliant disposition of legacy wastes and facilities from defense nuclear applications. The scope of work is diverse, with projects ranging from single acquisitions to collections of projects and operations that span several decades and costs from hundreds of millions to billions US$. The need to be able to manage and understand the technical risks from the project to senior mana… more
Date: February 11, 2009
Creator: Cercy, Michael; Fayfich, Ronald & Schneider, Steven
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

3rd Tech DeltaSphere-3000 Laser 3D Scene Digitizer infrared laser scanner hazard analysis.

Description: A laser hazard analysis and safety assessment was performed for the 3rd Tech model DeltaSphere-3000{reg_sign} Laser 3D Scene Digitizer, infrared laser scanner model based on the 2000 version of the American National Standard Institute's Standard Z136.1, for the Safe Use of Lasers. The portable scanner system is used in the Robotic Manufacturing Science and Engineering Laboratory (RMSEL). This scanning system had been proposed to be a demonstrator for a new application. The manufacture lists the… more
Date: February 1, 2005
Creator: Augustoni, Arnold L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

On CO2 Behavior in the Subsurface, Following Leakage from a Geologic Storage Reservoir

Description: The amounts of CO2 that would need to be injected intogeologic storage reservoirs to achieve a significant reduction ofatmospheric emissions are very large. A 1000 MWe coal-fired power plantemits approximately 30,000 tonnes of CO2 per day, 10 Mt per year(Hitchon, 1996). When injected underground over a typical lifetime of 30years of such a plant, the CO2 plume may occupy a large area of order 100km2 or more, and fluid pressure increase in excess of 1 bar(corresponding to 10 m water head) may ex… more
Date: February 9, 2006
Creator: Pruess, Karsten
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A review of ground-based heavy-ion radiobiology relevant to space radiation risk assessment: Part II. Cardiovascular and immunological effects

Description: The future of manned space flight depends on an analysis of the numerous potential risks of travel into deep space. Currently no radiation dose limits have been established for these exploratory missions. To set these standards more information is needed about potential acute and late effects on human physiology from appropriate radiation exposure scenarios, including pertinent radiation types and dose rates. Cancer risks have long been considered the most serious late effect from chronic daily… more
Date: February 26, 2007
Creator: Blakely, Eleanor A. & Chang, Polly Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Risk Analysis of the Space Shuttle: Pre-Challenger Bayeisan Prediction of Failure

Description: Dalal et al performed a statistical analysis of field and nozzle O-ring data collected prior to the ill-fated launch of the Challenger in January 1986. The purpose of their analysis was to show how statistical analysis could be used to provide information to decisionmakers prior to the launch, information that could have been expected to lead to a decision to abort the launch due to the low temperatures (~30o F.) present at the launch pad on the morning of the scheduled launch. Dalal et al. per… more
Date: February 1, 2008
Creator: Kelly, Dana L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Natural and industrial analogues for leakage of CO2 from storagereservoirs: identification of features, events, and processes and lessonslearned

Description: The injection and storage of anthropogenic CO2 in deepgeologic formations is a potentially feasible strategy to reduce CO2emissions and atmospheric concentrations. While the purpose of geologiccarbon storage is to trap CO2 underground, CO2 could migrate away fromthe storage site into the shallow subsurface and atmosphere if permeablepathways such as well bores or faults are present. Large-magnitudereleases of CO2 have occurred naturally from geologic reservoirs innumerous volcanic, geothermal, … more
Date: February 28, 2006
Creator: Lewicki, Jennifer L.; Birkholzer, Jens & Tsang, Chin-Fu
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Exposure information in environmental health research: Current opportunities and future directions for particulate matter, ozone, and toxic air pollutants

Description: Understanding and quantifying outdoor and indoor sources of human exposure are essential but often not adequately addressed in health-effects studies for air pollution. Air pollution epidemiology, risk assessment, health tracking and accountability assessments are examples of health-effects studies that require but often lack adequate exposure information. Recent advances in exposure modeling along with better information on time-activity and exposure factors data provide us with unique opportu… more
Date: February 1, 2007
Creator: McKone, Thomas E.; Ryan, P. Barry & Ozkaynak, Haluk
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

High-temperature gas-cooled reactor safety studies for the Division of Accident Evaluation. Quarterly progress report, April 1-June 30, 1985

Description: Modeling, code development, and analyses of the modular High-Temperature Gas-Cooled Reactor (HTGR) continued with work on the side-by-side design. Fission-product release and transport experiments were completed. Sections of an HTGR safety handbook were written.
Date: February 1, 1986
Creator: Ball, S. J.; Cleveland, J. C.; Harrington, R. M. & Wilson, J. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

New radiobiological findings bearing on the 1977 ICRP recommendations. [Sensitivity of mouse and monkey prenatal oocytes to chronic, low-dose, tritium exposure]

Description: Recent experiments on low-level irradiation during development raise questions relevant to ICRP Publication 26. Mice and monkeys were studied; the measured endpoint was the radiation-induced loss of female germ cells. Three issues are examined. The first is the numerical value of Q (quality factor) appropriate for low-energy beta rays. Comparisons of tritium with gamma radiation were made under conditions of chronic, low-level exposure, and the relative biological effectiveness (RBE) was found … more
Date: February 14, 1979
Creator: Dobson, R.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Engineering Physics and Mathematics Division progress report for period ending June 30, 1985

Description: The report is divided into eight sections: (1) nuclear data measurements and evaluation; (2) systems analysis and shielding; (3) applied physics and fusion reactor analysis; (4) mathematical modeling and intelligent control; (5) reliability and human factors research; (6) applied risk and decision analysis; (7) information analysis and data management; and (8) mathematical sciences. Each section then consists of abstracts of presented or published papers. (WRF)
Date: February 1, 1986
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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