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Investigation of laminar shocks

Description: Studies of laminar shocks based on ISEE observations of terrestrial bow shocks, simulation, and theory are presented.
Date: July 3, 1984
Creator: Lee, K.; Aldrich, C.H.; Bame, S.J.; Forslund, D.W.; Gary, S.P.; Gosling, J.T. et al.
Partner: UNT Libraries Government Documents Department
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X-ray observations of gamma-ray bursts

Description: As of this writing, all existing simultaneous x-ray observations of gamma-ray bursts (that is, observation having useful sensitivity below 30 keV at the time of the burst) have been serendipitous. Otherwise stated, there has never been a true GRB instrument designed to collect data in the <30 keV regime. Consequently, all the x-ray measurements have been compromised to some extent by experimental configurations not intended for GRB observations. Until recently, the experimental picture was further complicated by the fact that bursts were not well characterized even at gamma-ray energies. It is therefore not surprising that a reasonable observational understanding of the x-ray emission from GRBs has been difficult to attain. 7 refs., 9 figs.
Date: July 1, 1984
Creator: Laros, J.G.; Katoh, M. & Murakami, T.
Partner: UNT Libraries Government Documents Department
open access

Medical Technology and Costs of the Medicare Program

Description: An assessment by the Office of Technology Assessment (OTA) that "explores the dual relationship between medical technology and the Medicare program: Medicare policies affect the adoption and use of medical technologies, and the patterns and levels of use of medical technologies significantly affect Medicare costs" (p. iii).
Date: July 1984
Creator: United States. Congress. Office of Technology Assessment.
Partner: UNT Libraries Government Documents Department
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Analysis of long-term flows resulting from large-scale sodium-water reactions in an LMFBR secondary system

Description: Leaks in LMFBR steam generators cannot entirely be prevented; thus the steam generators and the intermediate heat transport system (IHTS) of an LMFBR must be designed to withstand the effects of the leaks. A large-scale leak which might result from a sudden break of a steam generator tube, and the resulting sodium-water reaction (SWR) can generate large pressure pulses that propagate through the IHTS and exert large forces on the piping supports. This paper discusses computer programs for analyzing long-term flow and thermal effects in an LMFBR secondary system resulting from large-scale steam generator leaks, and the status of the development of the codes.
Date: July 1, 1984
Creator: Shin, Y. W.; Chung, H.; Choi, U. S.; Wiedermann, A. H. & Ockert, C. E.
Partner: UNT Libraries Government Documents Department
open access

Fish & Wildlife Annual Project Summary, 1983.

Description: BPA's Division of Fish and Wildlife was created in 1982 to develop, coordinate and manage BPA's fish and wildlife program. Division activities protect, mitigate, and enhance fish and wildlife resources impacted by hydroelectric development and operation in the Columbia River Basin. At present the Division spends 95% of its budget on restoration projects. In 1983, 83 projects addressed all aspects of the anadromous fish life cycle, non-migratory fish problems and the status of wildlife living near reservoirs.
Date: July 1, 1984
Creator: United States. Bonneville Power Administration.
Partner: UNT Libraries Government Documents Department
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Cascade: a review of heat transport and plant design issues

Description: A conceptual heat transfer loop for Cascade, a centrifugal-action solid-breeder reaction chamber, has been investigated and results are presented. The Cascade concept, a double-cone-shaped reaction chamber, rotates along its horizontal axis. Solid Li/sub 2/O or other lithium-ceramic granules are injected tangentially through each end of the chamber. The granules cascade axially from the smaller radii at the ends to the larger radius at the center, where they are ejected into a stationary granule catcher. Heat and tritium are then removed from the granules and the granules are reinjected into the chamber. A 50% dense Li/sub 2/O granule throughput of 2.8 m/sup 3//s is transferred from the reaction chamber to the steam generators via continuous bucket elevators. The granules then fall by gravity through 4 vertical steam generators. The entire transport system is maintained at the same vacuum conditions present inside the reaction chamber.
Date: July 31, 1984
Creator: Murray, K.A. & McDowell, M.W.
Partner: UNT Libraries Government Documents Department
open access

Study of magnetism at surfaces by scattering of neutrons at grazing incidence

Description: Neutrons can provide information on magnetic phenomena at surfaces. The simplest experiment involves the measurement of the reflectivity of a well-collimated beam from the surface, as a function either of the neutron wavelength or of the angle of incidence theta/sub i/. Using polarized neutrons, the spin-dependent reflectivity of a magnetically-active material can determine the depth profile of the magnetic induction B. A prototype instrument at the Intense Pulsed Neutron Source at Argonne has already demonstrated the feasibility of this technique in determining the penetration depth of an external magnetic field in superconductors. Further experiments are being planned to study the magnetic disturbances close to the surface of ferromagnets; a first experiment on films of iron oxides showed a remarkable change of the magnetic depth profile with increasing oxidation.
Date: July 1, 1984
Creator: Felcher, G.P.
Partner: UNT Libraries Government Documents Department
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Measurement of the Wolfenstein parameters for proton-proton and proton-neutron scattering at 500 MeV

Description: Using liquid hydrogen and liquid deuterium targets respectively, forward angle (ten degrees to sixty degrees in the center of Mass) free proton-proton and quasielastic proton-proton and proton-neutron triple scattering data at 500 MeV have been obtained using the high resolution spectrometer at the Los Alamos Meson Physics Facility. The data are in reasonable agreement with recent predictions from phase shift analyses, indicating that the proton-nucleon scattering amplitudes are fairly well determined at 500 MeV. 32 references.
Date: July 1, 1984
Creator: Marshall, J.A.
Partner: UNT Libraries Government Documents Department
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Resource Management Plan for the US Department of Energy Oak Ridge Reservation. Volume 15, Appendix P: waste management

Description: Since their inception, the DOE facilities on the Oak Ridge Reservation have been the source of a variety of airborne, liquid, and solid wastes which are characterized as nonhazardous, hazardous, and/or radioactive. The major airborne releases come from three primary sources: steam plant emissions, process discharge, and cooling towers. Liquid wastes are handled in various manners depending upon the particular waste, but in general, major corrosive waste streams are neutralized prior to discharge with the discharge routed to holding or settling ponds. The major solid wastes are derived from construction debris, sanitary operation, and radioactive processes, and the machining operations at Y-12. Nonradioactive hazardous wastes are disposed in solid waste storage areas, shipped to commercial disposal facilities, returned in sludge ponds, or sent to radioactive waste burial areas. The radioactive-hazardous wastes are treated in two manners: storage of the waste until acceptable disposal options are developed, or treatment of the waste to remove or destroy one of the components prior to disposal. 5 references, 4 figures, 13 tables.
Date: July 1, 1984
Creator: Kelly, B.A.
Partner: UNT Libraries Government Documents Department
open access

Axions in astrophysics and cosmology

Description: Axion models often have a spontaneously broken exact discrete symmetry. In that case, they have discretely degenerate vacua and hence domain walls. The properties of the domain walls, the cosmological catastrophe they produce and the ways in which this catastrophe may be avoided are explained. Cosmology and astrophysics provide arguments that imply the axion decay constant should lie in the range 10/sup 8/ GeV less than or equal to f/sub a/ less than or equal to 10/sup 12/ GeV. Reasons are given why axions are an excellent candidate to constitute the dark matter of galactic halos. Using the coupling of the axions to the electromagnetic field, detectors are described to look for axions floating about in the halo of our galaxy and for axions emitted by the sun. (LEW)
Date: July 1, 1984
Creator: Sikivie, P.
Partner: UNT Libraries Government Documents Department
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Distribution of radionuclides and water in Bandelier Tuff beneath a former Los Alamos liquid waste disposal site after 33 years

Description: The distribution of radionuclides and water in Bandelier Tuff beneath a former liquid waste disposal site at Los Alamos was investigated. The waste use history of the site was described, as well as several pertinent laboratory and field studies of water and radionuclide migration in Bandelier Tuff. The distribution of plutonium, /sup 241/Am, and water was determined in a set of about 800 tuff samples collected to sampling depths of 30 m beneath two absorption beds. These data were then related to site geohydrologic data. Water and radionuclide concentrations found after 33 years were compared with the results of similar studies previously performed at this site, and the implications of these comparisons are discussed relative to nuclear waste management. 19 references, 6 figures, 4 tables.
Date: July 1, 1984
Creator: Nyhan, J.W.; Drennon, B.J.; Abeele, W.V.; Trujillo, G.; Herrera, W.J.; Wheeler, M.L. et al.
Partner: UNT Libraries Government Documents Department
open access

Airborne radioactive effluent study at the Savannah River Plant

Description: Under the Clean Air Act, Sections 112 and 122 as amended in 1977, the Office of Radiation Programs (OPR) of the United States Environmental Protection Agency is currently developing standards for radionuclides emitted to the air by several source categories. In order to confirm source-term measurements and pathway calculations for radiation exposures to humans offsite, the ORP performs field studies at selected facilities that emit radionuclides. This report describes the field study conducted at the Savannah River Plant (SRP), a laboratory operated by E.I. du Pont de Nemours and Company for the US Department of Energy. This purpose of the study at ARP was to verify reported airborne releases and resulting radiation doses from the facility. Measurements of radionuclide releases for brief periods were compared with measurements performed by SRP staff on split samples and with annual average releases reported by SRP for the same facilities. The dispersion model used by SRP staff to calculate radiation doses offsite was tested by brief environmental radioactivity measurements performed simultaneously with the release measurements, and by examining radioactivity levels in environmental samples. This report describes in detail all measurements made and data collected during the field study and presents the results obtained. 34 references, 18 figures, 49 tables.
Date: July 1, 1984
Creator: Blanchard, R.L.; Broadway, J.A.; Sensintaffar, E.L.; Kirk, W.P.; Kahn, B. & Garrett, A.J.
Partner: UNT Libraries Government Documents Department
open access

New collider scheme at LBL

Description: This paper presents current ideas from Berkeley concerning a possible new facility for studying the phase transition from hadronic matter to quark matter. The physics ideas have evolved over a period of more than five years, the VENUS concept for a 25 GeV/nucleon colliding beam facility having been presented in 1979. The concept for the Minicollider has been, like that of VENUS, the work of Hermann Grunder and Christoph Leemann.
Date: July 1, 1984
Creator: Pugh, Howel G.
Partner: UNT Libraries Government Documents Department
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First- and second-order charged particle optics

Description: Since the invention of the alternating gradient principle there has been a rapid evolution of the mathematics and physics techniques applicable to charged particle optics. In this publication we derive a differential equation and a matrix algebra formalism valid to second-order to present the basic principles governing the design of charged particle beam transport systems. A notation first introduced by John Streib is used to convey the essential principles dictating the design of such beam transport systems. For example the momentum dispersion, the momentum resolution, and all second-order aberrations are expressed as simple integrals of the first-order trajectories (matrix elements) and of the magnetic field parameters (multipole components) characterizing the system. 16 references, 30 figures.
Date: July 1, 1984
Creator: Brown, K.L. & Servranckx, R.V.
Partner: UNT Libraries Government Documents Department
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Workshop on geophysical modeling of the Long Valley caldera: proceedings

Description: Rapporteur's summary reports are given the following workshop sessions: geological background and overview of the Long Valley hydrothermal-magnetic system and processes, concepts and models based on seismological data, electrical and electromagnetic models, and deformation and gravity. 31 references, 36 figures. (MHR)
Date: July 1, 1984
Creator: Goldstein, N.E. (ed.)
Partner: UNT Libraries Government Documents Department
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Metal finishing and vacuum processes groups, Materials Fabrication Division progress report, March-May 1984

Description: Progress is reported in fabrication and coating activities being conducted for the weapons program, nuclear test program, nuclear design program, magnetic fusion program, and miscellaneous applications. (DLC)
Date: July 11, 1984
Creator: Dini, J.W.; Romo, J.G. & Jones, L.M.
Partner: UNT Libraries Government Documents Department
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Safety Analysis Report for Packaging:The ORNL Lithium Hydroxide Fire and Impact Shield

Description: The ORNL Lithium Hydroxide Fire and Impact Shield and its packaging were designed and fabricated at Oak Ridge National Laboratory to permit the transport of Type B quantities of radioactive material and limited quantities of fissionable material. The shield and its packaging were evaluated analytically and experimentally to determine its compliance with the applicable regulations governing containers in which radioactive and fissile materials are transported, and that evaluation is the subject of this report. Computational and test procedures were used to determine the structural integrity and thermal behavior of the shield relative to the general standards for normal conditions of transport and the standards for the hypothetical accident conditions. The results of the evaluation demonstrate that the shield and its packaging are in compliance with the applicable regulations. 16 references, 8 figures, 5 tables.
Date: July 1, 1984
Creator: Evans, J.H.; Eversole, R.E.; Just, R.A. & Schaich, R.W.
Partner: UNT Libraries Government Documents Department
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High-bandwidth multichannel fiber optic system for measuring gamma rays

Description: We describe an analog fiber optic gamma-ray diagnostic system that can transmit signals through fiber cables 600 to 700 m long with a system bandwidth exceeding 1 GHz and measure the relative timing between signals to within 0.3 ns. Gamma rays are converted to visible light via the Cerenkov process in a short length of a radiation-resistant optical fiber. A graded-index optical fiber transmits this pulse to a recording station where the broadened pulse is compensated for material dispersion and recorded using a streak camera. The streak camera can simultaneously record 20 to 30 data channels on a single piece of film. The system has been calibrated using electron linear accelerators and fielded on two experiments.
Date: July 1, 1984
Creator: Roeske, F.; Smith, D. E.; Pruett, B. L. & Reedy, R. P.
Partner: UNT Libraries Government Documents Department
open access

Design and evaluation of an integrated safeguards system: principles

Description: An integrated safeguards system is defined as a collection of safeguards activities in which system components are coordinated to meet safeguards objectives efficiently within constraints imposed by safeguards resources, facility operations, potential adversaries, and regulatory requirements. This paper describes principles for designing and evaluating an integrated safeguards system that consists of four parts: (1) a problem definition phase that specifies resources and constraints composing the problem boundary values; (2) a system analysis/synthesis phase that describes how to select and integrate safeguards activities for efficient attainment of system objectives; (3) a system evaluation/optimization phase that defines measures of safeguards performance and develops methods for evaluating them; and (4) a decision-making phase that develops principles for selecting admissible designs and preference-ordering designs. 6 references, 4 figures, 5 tables.
Date: July 1, 1984
Creator: Markin, J.T.; Coulter, C.A.; Gutmacher, R.G. & Whitty, W.J.
Partner: UNT Libraries Government Documents Department
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