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Temperature tests of high frequency SLIFER oscillator, LEA73-2176. [For monitoring underground nuclear detonations at Nevada Test Site]

Description: SLIFER (Short Location Indication by Frequency of Electrical Resonance) systems measure stress wave velocity in solid or liquid materials. They monitor underground nuclear detonations at the Nevada Test Site (NTS). A shorted length of coaxial cable is a component in an oscillator's tank circuit. This sensor cable is inductive when less than one-fourth wavelength long at the oscillator's resonant frequency. The stress wave from a detonation crushes and shorts this sensor cable. As the … more
Date: June 7, 1976
Creator: Aaron, Carl C., Jr.
Item Type: Refine your search to only Report
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Environmental tests of the Meteorological Data Acquisition system's remote station

Description: We subjected the Meteorological Data Acquisition (MEDA) remote station hardware to temperature, vibration, and road tests. The MEDA equipment was designed at the Lawrence Livermore Laboratory (LLL) for the Air Resources Laboratory (ARL). ARL supplied all MEDA sensors. The prototype system passed these tests.
Date: May 10, 1976
Creator: Aaron, Jr., C. C.
Item Type: Refine your search to only Report
open access

Prototype gauge for measuring contour and wall thicknesses of hemispherical parts. [Interferometer]

Description: A prototype gauge (gage) was designed and fabricated using air bearings in a new configuration to provide less error and distortion during inspection of hemispherical parts. No wear occurs on the moving parts during operations and accuracy of alignment is maintained. The gauge will check outside radial distance, inside radial, and outside radial and wall, and inner radial and wall thicknesses of parts. The gauge contains only four moving parts, which increases the measuring accuracy. A horizont… more
Date: March 1, 1976
Creator: Aarts, H. J. & Robertson, J. H.
Item Type: Refine your search to only Report
open access

Rankine cycle energy conversion system design considerations for low and intermediate temperature sensible heat sources. Geothermal, waste heat, and solar thermal conversion

Description: Design considerations are described for energy conversion systems for low and intermediate temperature sensible heat sources such as found in geothermal, waste heat, and solar-thermal applications. It is concluded that the most cost effective designs for the applications studied did not require the most efficient thermodynamic cycle, but that the efficiency of the energy conversion hardware can be a key factor.
Date: October 1, 1976
Creator: Abbin, J. P. Jr.
Item Type: Refine your search to only Report
open access

Heat Extraction from a Hydraulically Fractured Penny-Shaped Crack in Hot Dry Rock

Description: Heat extraction from a penny-shaped crack having both inlet and outlet holes is investigated analytically by considering the hydraulic and thermal growth of the crack when fluid is injected at a constant flow rate. The rock mass is assumed to be infinitely extended, homogeneous, and isotropic. The equations for fluid flow are derived and solved to determine the flow pattern in the crack. Temperature distributions in both rock and fluid are also determined. The crack width change due to thermal … more
Date: December 1, 1976
Creator: Abe, H.; Mura, T. & Keer, L.M.
Item Type: Refine your search to only Article
open access

Model for the prediction of the pressure-volume relationship of porous rocks

Description: Several models have been suggested to describe the volume behavior of porous materials under hydrostatic loading. The model presented here accounts for variations in both porosity and the amount of fluid contained within that porosity. The model also attempts to predict the one-dimensional strain loading pressure-volume relationship and the stress difference-confining pressure curve. Only the simplest assumptions were used for the development of this model. These assumptions are discussed and t… more
Date: July 20, 1976
Creator: Abey, A. E.
Item Type: Refine your search to only Article
open access

Diffusion of gases in solids: rare gas diffusion in solids; tritium diffusion in fission and fusion reactor metals. Final report

Description: Major results of tritium and rare gas diffusion research conducted under the contract are summarized. The materials studied were austenitic stainless steels, Zircaloy, and niobium. In all three of the metal systems investigated, tritium release rates were found to be inhibited by surface oxide films. The effective diffusion coefficients that control tritium release from surface films on Zircaloy and niobium were determined to be eight to ten orders of magnitude lower than the bulk diffusion coe… more
Date: September 1, 1976
Creator: Abraham, P. M.; Chandra, D.; Mintz, J. M.; Elleman, T. S. & Verghese, K.
Item Type: Refine your search to only Report
open access

Neutron-induced mutation experiments. Progress report, March 1, 1976--February 28, 1977. [In Drosophila]

Description: Results are from studies of experiments in Drosophila on the relative mutagenic effectiveness of neutrons of different energies employing X-linked recessive lethal and specific locus mutation tests. The energies and doses employed to data are .43 MeV (500, 1000, and 1500 R, in progress), .68 MeV (250, 500, 1000, and 1500 R), 2 and 6 MeV (250 and 500 R), and 15 MeV (250, 500, 1000, 1500 and 3000 R). .68 MeV neutrons appear to have an RBE between 3.3 to 4.5, 15 MeV neutrons an RBE between 1.9 to … more
Date: November 1, 1976
Creator: Abrahamson, S.
Item Type: Refine your search to only Report
open access

Genetic effects of low x-ray doses. Progress report, October 1, 1975--September 30, 1976. [Drosophila oogonia]

Description: Experiments on dose-kinetics of x-ray induced sexlinked lethal mutations in Drosophila oogonia were continued. A wide range of doses was tested, with special emphasis on the low-dose range (20 to 500R). This year more data were added for O R, 200, 500, 1500R and some high doses. Oogonia of adult females were irradiated, and only one daughter from each experimental parent-female was analyzed for a new lethal in her maternal X-chromosome. Thus no clusters of mutations of identical origin are enco… more
Date: September 1, 1976
Creator: Abrahamson, S. & Meyer, H. U.
Item Type: Refine your search to only Report
open access

Heat transfer in tube bundles of heat exchangers with flow baffles induced forced mixing

Description: Thermal analysis of shell-and-tube heat exchangers is being investigated through geometric modeling of the unit configuration in addition to considering the heat transfer processes taking place within the tube bundle. The governing equations that characterize the heat transfer from the shell side fluid to the tube side fluid across the heat transfer tubewalls are indicated. The equations account for the heat transfer due to molecular conduction, turbulent thermal diffusion, and forced fluid mix… more
Date: January 1, 1976
Creator: AbuRomia, M. M.; Chu, A. W. & Cho, S. M.
Item Type: Refine your search to only Article
open access

Brownian motion of interacting particles

Description: Guided by the descriptions which are used to describe noninteracting particles, it is argued that the generalized Smoluchowski equation, including the hydrodynamic interaction and corrections for ion cloud effects may be used to describe interacting particles for the temporal and spatial regimes probed by light beating spectroscopy. This equation is then used to find cumulants of decay of the intermediate scattering function. The generalized Smoluchowski equation is reduced to a simple diffusio… more
Date: January 1, 1976
Creator: Ackerson, B. J.
Item Type: Refine your search to only Report
open access

Distribution of xenon between gaseous and liquid CO/sub 2/

Description: The distribution of xenon at low concentrations between gaseous and liquid CO/sub 2/ was measured over essentially the entire liquid range of CO/sub 2/. These measurements involved using a collimated radiation-detection cell to determine the relative quantities of /sup 133/Xe-traced xenon in the separate phases contained in a vertical cylinder under isothermal conditions. The results are expressed in terms of a distribution ratio (mole fraction of xenon in the gaseous phase divided by mole frac… more
Date: October 1, 1976
Creator: Ackley, R. D. & Notz, K. J.
Item Type: Refine your search to only Report
open access

Vapor deposition of large area NpO/sub 2/ and UO/sub 2/ deposits

Description: Deposition of NpO/sub 2/ and UO/sub 2/ thin films over an area of 7.5 to 10 cm diam has become a routine operation in preparation of fission chamber plates. Vacuum evaporation or electroplating has been used for this purpose. The ''paint brush'' technique has been used as well; however, uniformity requirements normally eliminate this procedure. Vapor deposition in vacuum appears to be the most suitable technique for preparing NpO/sub 2/ and UO/sub 2/ deposits of >200 cm/sup 2/. This paper descr… more
Date: January 1, 1976
Creator: Adair, H. L.; Gibson, J. R.; Kobisk, E. H. & Dailey, J. M.
Item Type: Refine your search to only Article
open access

Research and development efforts relative to superconducting materials. Final report. [Nb/sub 3/Sn tapes]

Description: Three processes for the production of low-loss superconducting tapes of Nb/sub 3/Sn were investigated. They are the rolled-bronze process, the electron beam (EB) bronze deposition process, and the high-rate sputtering process. Shortly after the start of the investigation, effort on the last two processes was suspended because the process-development time that would be needed to arrive at a suitable transmission-line tape appeared most likely to be the shortest with the rolled-bronze process. Lo… more
Date: April 1, 1976
Creator: Adam, E; Beishcher, P; Marancik, W; Lucariello, R & Young, M
Item Type: Refine your search to only Report
open access

SYN3D: a Single-Channel, Spatial Flux Synthesis Code for Diffusion Theory Calculations

Description: This report is a user's manual for SYN3D, a computer code which uses single-channel, spatial flux synthesis to calculate approximate solutions to two- and three-dimensional, finite-difference, multi-group neutron diffusion theory equations. SYN3D is designed to run in conjunction with any one of several one- and two-dimensional, finite-difference codes (required to generate the synthesis expansion functions) currently being used in the fast reactor community. The report describes the theory and… more
Date: 1976
Creator: Adams, C. H.
Item Type: Refine your search to only Report
open access

LX-13 component development scale up evaluation

Description: The intermediate phase oif the continuous PETN process development has been completed. After the initial development oif the process on a small scale, the intermediate step was to determine if the process will scale up to a production lot size and still maintain adequate performance. Preliminary data indicate that this process is feasible on a production scale. Three 18-kg lots (production size) showed good repeatable performance, firing on all tracks while maintaining acceptable extrudability.
Date: October 1, 1976
Creator: Adams, J. C.; Osborn, A. G. & Stallings, T. L.
Item Type: Refine your search to only Report
open access

LX-13 processing. Progress report, January--March 1976

Description: Results were obtained from two LX-13 lots formulated from PETN precipitated at a reduced temperature by the continuous method. The firing performance of the LX-13 was significantly improved while maintaining acceptable extrudability. Burning was complete in all of the tracks. Three additional PETN batches have been precipitated at reduced temperatures in order to further evaluate the effect of reduced temperatures on extrudability and detonability. One of these PETN batches was scaled up to the… more
Date: January 1, 1976
Creator: Adams, J. C.; Osborn, A. G. & Stallings, T. L.
Item Type: Refine your search to only Report
open access

Critical evaluation of the nonradiological environmental technical specifications. Volume 2. Surry Power Plants, Units 1 and 2

Description: A comprehensive study of the data collected as part of the environmental Technical Specifications program for Units 1 and 2 of the Surry Nuclear Power Plant was carried out for the Office of Regulatory Research of the U.S. Nuclear Regulatory Commission. The program included an analysis of the hydrothermal and ecological monitoring data collected from 1973 through 1975. The hydrothermal analysis includes a discussion of models used in plume predictions prior to plant operation and an evaluation … more
Date: August 10, 1976
Creator: Adams, S. M.; Cunningham, P. A.; Gray, D. D. & Kumar, K. D.
Item Type: Refine your search to only Report
open access

Critical evaluation of the nonradiological environmental technical specifications. Volume 4. San Onofre Nuclear Generating Station, Unit 1

Description: A comprehensive study of the data collected as part of the environmental Technical Specifications program for Unit 1 of the San Onofre Nuclear Generating Station (SONGS 1) was conducted for the Office of Nuclear Regulatory Research of the U.S. Nuclear Regulatory Commission. The program included an analysis of the hydrothermal and ecological monitoring data collected during 1975. The hydrothermal analysis includes a discussion of models used in plume predictions prior to plant operation and an e… more
Date: August 10, 1976
Creator: Adams, S. M.; Cunningham, P. A.; Gray, D. D. & Kumar, K. D.
Item Type: Refine your search to only Report
open access

Critical evaluation of the nonradiological environmental technical specifications. Program description, summary, and recommendations. Vol. 1

Description: A comprehensive study of the data collected as part of the environmental Technical Specifications program for eight nuclear power plants was conducted for the Office of Nuclear Regulatory Research of the U.S. Nuclear Regulatory commission. This report includes a summary of the screening phase in which the adequacy of the hydrothermal and ecological monitoring data for each plant were evaluated, and the summary and recommendations resulting from a detailed examination of the three nuclear power … more
Date: August 10, 1976
Creator: Adams, S. M.; Cunningham, P. A.; Gray, D. D.; Kumar, K. D. & Witten, A. J.
Item Type: Refine your search to only Report
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