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Important aspects of radiation shielding for fusion reactor tokamaks

Description: Radiation shielding is a key subsystem in tokamak reactors. Design of this shield must evolve from economic and technological trade-off studies that account for the strong interrelations among the various components of the reactor system. These trade-offs are examined for the bulk shield on the inner side of the torus and for the special shields of major penetrations. Results derived are applicable for a large class of tokamak-type reactors.
Date: April 30, 1977
Creator: Abdou, M. A.
Item Type: Refine your search to only Article
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Behavior of Kevlar 49 fabric/epoxy laminates subjected to pin bearing loads

Description: The low compressive strength of Kevlar reinforced composites causes concern about the ability of these materials to withstand bearing loads in bolted joints. This paper presents the results of an experimental investigation of the pin bearing load-deflection response of (0/90/+-45), (0/90) and (+-45) Kevlar 49 fabric/epoxy laminates. Laminate thicknesses from 0.075 in. to 0.300 in. were examined for pin diameters ranging from 0.125 in. to 0.500 in. Results of this study revealed three significan… more
Date: April 1, 1977
Creator: Allred, R. E.
Item Type: Refine your search to only Report
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Solar irrigation program. Status report, October 1976--January 1977

Description: The status of the Solar Irrigation Program is summarized. The program initially consisted of a shallow well experiment that is now under construction in New Mexico. It has recently been expanded to include a deep well experiment in Arizona and a follow-on, as yet undefined, demonstration system. Most of this report is limited to technical discussions of the shallow well experiment design, and analyses are given which support the design choices selected.
Date: April 1, 1977
Creator: Alvis, R. L.
Item Type: Refine your search to only Report
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CDC6600 subroutine for normal random variables. [RVNORM (RMU, SIG)]

Description: A value y for a uniform variable on (0,1) is generated and a table of 96-percent points for the (0,1) normal distribution is interpolated for a value of the normal variable x(0,1) on 0.02 less than or equal to y less than or equal to 0.98. For the tails, the inverse normal is computed by a rational Chebyshev approximation in an appropriate variable. Then X = x sigma + ..mu.. gives the X(..mu..,sigma) variable.
Date: April 1, 1977
Creator: Amos, D. E.
Item Type: Refine your search to only Report
open access

Site-specific analysis of hybrid geothermal/fossil power plants

Description: The results of an analytical effort to determine the cost effectiveness of hybrid geothermal/fossil-fuel electrical-power generating stations. The analysis is directed at combining hydrothermal and coal energy in a Rankine steam cycle, for electrical power generation for the City of Burbank, California. This effort develops a methodology for hybrid power-plant cost analysis so that preliminary plant designs can be optimized as a function of specific site conditions and characteristics. It also … more
Date: April 1, 1977
Creator: Anno, G. H.; Dore, M. A.; Grijalva, R. L.; Lang, G. D. & Thomas, F. J.
Item Type: Refine your search to only Report
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Reflective materials evaluation. Final report, Task III, July 1975--April 1977

Description: Research involved an investigation of specific reflective membrane composites and protective coatings which appeared capable of providing the economical, efficient, durable reflective surfaces required for use with solar concentrating systems. The main part of the work on this task was the exposure of candidate materials to an outside environment. This took place at Desert Sunshine Exposure Tests, Inc. (DSET), which is located near Phoenix, Arizona. All the materials and composites tested were … more
Date: April 1, 1977
Creator: Arden, W. M.
Item Type: Refine your search to only Report
open access

Chemical Characterization of Basalt Flows

Description: The ARHCO chemical data which includes trace elements, can be used to distinguish, with a high degree of confidence, between flows in the upper (and part of the middle) Yakima basalts. They also can be used to distinguish between groupings of flows in the middle Yakima basalts, and between the lower basalts and the others. The quality of the measurements, however, was not well-controlled. The atomic absorption measurements were generally useful, but contained a significant number of poor values… more
Date: April 1, 1977
Creator: Asaro, Frank & Michel, Helen V.
Item Type: Refine your search to only Report
open access

Strain localization in ductile single crystals

Description: Strain localization in ductile crystals deforming by single slip was analyzed. The plastic flow is modeled as rate-in-sensitive; and localization, viewed as a bifurcation from a homogeneous deformation mode to one which is concentrated in a narrow ''shear band'', is found to be possible only when the plastic hardening modulus for the slip system has fallen to a certain critical value, h/sub cr/, where h/sub cr/ is sensitive to the precise form of the constitutive law governi… more
Date: April 1, 1977
Creator: Asaro, R J & Rice, J R
Item Type: Refine your search to only Report
open access

National waste terminal storage program bibliography

Description: In February 1976, the Energy Research and Development Administration (ERDA) announced a greatly expanded waste management program for defense and commercial radioactive waste. In that announcement, ERDA indicated that the Oak Ridge Operations Office (ORO) of ERDA would have lead responsibility for overall coordination of the expanded commercial geologic disposal program and that an Office of Waste Isolation (OWI) would be created within Union Carbide Corporation-Nuclear Division (UCC-ND) with t… more
Date: April 30, 1977
Creator: Asher, J. M.
Item Type: Refine your search to only Report
open access

Collisional damping of Langmuir waves in the collisionless limit

Description: Linear Langmuir wave damping by collisions is studied in the limit of collision frequency ..nu.. approaching zero. In this limit, collisions are negligible, except in a region in velocity space, the boundary layer, centered about the phase velocity. If the ratio kappa = (collisional equilibration time in the boundary layer) : (Landau damping time) is small, the boundary layer width scales as ..nu../sup /sup 1///sub 3//, and the perturbed distribution function scales as ..nu../sup -/sup 1///sub … more
Date: April 1, 1977
Creator: Auerbach, S. P.
Item Type: Refine your search to only Report
open access

Overview of the geothermal energy development program at the Lawrence Livermore Laboratory

Description: The program consists generally of development of advanced conversion systems, with strong emphasis on a systems approach to find solutions of the problems of scale formation, corrosion/erosion of materials, spent brine disposal and solids handling, and development of reliable, efficient energy conversion systems with strong emphasis on development of the total flow concept. The status of the various parts of this program is reviewed briefly. (MHR)
Date: April 29, 1977
Creator: Austin, A. L.
Item Type: Refine your search to only Report
open access

Flooding and mass transfer in Goodloe-packed columns, Part 2. [HTGR]

Description: Krypton gas is recovered from HTGR off-gas streams by countercurrent absorption in liquid carbon dioxide. Goodloe stainless steel wire mesh packing was chosen for the absorption columns since the process operates at -20/sup 0/C and about 20 atm pressure. Flooding points and an overall mass transfer coefficient for Goodloe-packed columns were determined with a carbon dioxide-air-water system for 6.4 and 15.2-cm-ID columns. Flood points were obtained for liquid-to-gas mass velocity ratios of 20 t… more
Date: April 25, 1977
Creator: Ayala, J. S.; Brian, B. W. & Sharon, A. C.
Item Type: Refine your search to only Report
open access

Quarterly progress report to Nuclear Regulatory Commission, Division of Reactor Safety Research, Fuel Behavior Research Branch programs for period ending March 1977. [PWR and BWR]

Description: Information is presented concerning experimental verification of steady-state fuel behavior codes program, fuel subassembly procurement and irradiation test program, and pressure transducer development program.
Date: April 1, 1977
Creator: Bailey, W. J. (comp.)
Item Type: Refine your search to only Report
open access

Economic Feasibility of Artificial Islands for Cluster-siting of Offshore Energy Facilities

Description: The study presents a general first-order cost feasibility analysis of the artificial island concept and its usefulness for the offshore siting of multiple energy facilities. The results of the study include a recommended method of cost-feasibility assessment; the collection and organization of the most useful information presently available; and a series of conclusions on feasibility for generic comparison purposes. These conclusions can be summarized as follows: (1) artificial islands to the o… more
Date: April 1, 1977
Creator: Baram, M.S.; Spencer, J. & Munson, J.S.
Item Type: Refine your search to only Report
open access

Automated approach to quantitative error analysis. [BEAPAC-1T and -3T, for testing reliability of computer codes, in FORTRAN for IBM 370/195 and CDC 6400]

Description: A method is described how a quantitative measure for the robustness of a given neutron transport theory code for coarse network calculations can be obtained. A code that performs this task automatically and at only nominal cost is described. This code also generates user-oriented benchmark problems which exhibit the analytic behavior at interfaces. 5 figures, 1 table.
Date: April 1, 1977
Creator: Bareiss, E.H.
Item Type: Refine your search to only Article
open access

Alpha radiolysis of tributyl phosphate: effect of diluents

Description: Alpha radiolysis of solutions of tributyl phosphate (TBP) in several different types of diluents was studied. Yields of dibutyl phosphoric acid (as measured by plutonium-IV retention) and chloride were measured up to a dose of approximately 10 watt-hours per liter. Plutonium dissolved in the organic phase was the radiation source. The yields of dibutyl phosphoric acid (HDBP) and the Cl/sup -/ were the highest for carbon tetrachloride. The aromatic diluents give the best protection for TBP again… more
Date: April 1, 1977
Creator: Barney, G S & Bouse, D G
Item Type: Refine your search to only Report
open access

Analysis of Waste-Load Assimilative Capacity of the Yampa River, Steamboat Springs to Hayden, Routt County, Colorado

Description: From purpose and scope: The primary purpose of the study was to aid in evaluating the waste-load assimilative capacity of the study reach for a minimum mean 7-day low flow and 10-year recurrence interval. The results of this analysis will provide planners and managers in Routt County with information for determining the waste-load capacities of the study reach for possible design and operational alternatives of future wastewater-treatment plants.
Date: April 1977
Creator: Bauer, Daniel P.; Steele, Timothy D. & Anderson, Richard D.
Item Type: Refine your search to only Report
open access

Threatened plant species of the Nevada Test Site, Ash Meadows, central-southern Nevada

Description: This report is a companion one to Endangered Plant Species of the Nevada Test Site, Ash Meadows, and Central-Southern Nevada (COO-2307-11) and deals with the threatened plant species of the same area. The species are those cited in the Federal Register, July 1, 1975, and include certain ones listed as occurring only in California or Arizona, but which occur also in central-southern Nevada. As with the earlier report, the purpose of this one is to record in detail the location of the past plant … more
Date: April 1, 1977
Creator: Beatley, J. C.
Item Type: Refine your search to only Report
open access

Measurement of the neutron-induced fission cross section of /sup 232/Th relative to /sup 235/U from 0. 7 to 30 MeV. [0. 7 to 30 MeV]

Description: Continuing fission cross section ratio studies at Lawrence Livermore Laboratory, one has measured the /sup 232/Th//sup 235/U fission cross-section ratio from 0.7 to 30 MeV. Using the threshold method, one obtained a value of 0.1081 +- 0.0022 for the average cross-section ratio in the interval from 1.75 to 4.00 MeV.
Date: April 13, 1977
Creator: Behrens, J. W.; Magana, J. W. & Browne, J. C.
Item Type: Refine your search to only Report
open access

Effect of density fluctuations of lower hybrid resonance cone propagation

Description: Experimental measurements show that coherent, azimuthal density fluctuations (1) focus lower hybrid resonance cones azimuthally, and (2) modulate the radial location of the resonance cones. A simple theory based on wave refraction is presented; this theory is in good agreement with the experimental observations. The theory is extended to give a physical description of wave propagation through turbulent, isotropic (perpendicular to B) noise such as has been observed in tokamaks; it is found that… more
Date: April 1, 1977
Creator: Bellan, P. M. & Wong, K. L.
Item Type: Refine your search to only Report
open access

Review of mirror fusion reactor designs

Description: Three magnetic confinement concepts, based on the mirror principle, are described. These mirror concepts are summarized as follows: (1) fusion-fission hybrid reactor, (2) tandem mirror reactor, and (3) reversed field mirror reactor. (MOW)
Date: April 20, 1977
Creator: Bender, D. J.
Item Type: Refine your search to only Article
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