Search Results

open access

Preliminary report on Battelle Northwest Liquid Level Probes (LLP)

Description: The Battelle Northwest Liquid Level Probe was evaluated for possible use in the LOFT Blowdown Suppression Tank. The results from the test indicate that the probe will measure the liquid level to +-/sup 1///sub 4/ inch, over a range of 50 inches. The next step is to test the functionability of the probe under simulated LOFT-Blowdown Suppression Tank operating conditions.
Date: November 11, 1977
Creator: Coffin, G.R. & Ford, R.E.
Partner: UNT Libraries Government Documents Department
open access

Dissolution techniques. [175 refs]

Description: This review contains 175 references to commonly encountered dissolution problems.
Date: November 11, 1977
Creator: Silver, G.L.
Partner: UNT Libraries Government Documents Department
open access

Safety Analysis Report for Packaging (SARP) for USA/9506/BLF (DOE-AL)

Description: The Safety Analysis Report for Packaging (SARP) satisfies the request of the U.S. Energy Research and Development Administration for a formal safety analysis of the insulated drum shipping container identified as USA/9506/BLF(DOE-A1). Included are discussions of structural integrity, thermal resistance, radiation shielding and radiological safety, nuclear criticality safety, and quality control. Complete physical and technical descriptions of the packages are presented.
Date: November 11, 1977
Creator: Watkins, R. A.; Bertram, R. E.; Blauvelt, R. K.; Griffin, J. F.; Peterson, J. B. & Prosser, D. L.
Partner: UNT Libraries Government Documents Department
open access

Systematics of neutron-induced fission cross sections over the energy range 0. 1 through 15 MeV, and at 0. 0253 eV

Description: Recent studies have shown straightforward systematic behavior as a function of constant proton and neutron number for neutron-induced fission cross sections of the actinide elements in the incident-neutron energy range 3 to 5 MeV. In this report, the second in a series, fission cross-section values are studied over the MeV incident-neutron energy range, and at 0.0253 eV. Fission-barrier heights and neutron-binding energies are correlated by constant proton and neutron number; however, these sys… more
Date: November 11, 1977
Creator: Behrens, J.W.
Partner: UNT Libraries Government Documents Department
open access

Experimental Research on the Laser Cyclotron Auto-Resonance Accelerator “LACARA”

Description: The Laser Cyclotron Auto-Resonant Accelerator LACARA has successfully operated this year. Results are summarized, an interpretation of operating data is provided in the body of the report, and recommendations are made how the experiment should be carried forward. The Appendix A contains a description of the LACARA apparatus, currently installed at the Accelerator Test Facility, Brookhaven National Laboratory. This report summarizes the project, extending over three grant-years.
Date: November 11, 2008
Creator: Marshall, T C
Partner: UNT Libraries Government Documents Department
open access

SAVANNAH RIVER NATIONAL LABORATORYREGENERATIVE FUEL CELL PROJECT

Description: A team comprised of governmental, academic and industrial partners led by the Savannah River National Laboratory developed and demonstrated a regenerative fuel cell system for backup power applications. Recent market assessments have identified emergency response and telecommunication applications as promising near-term markets for fuel cell backup power systems. The Regenerative Fuel Cell System (RFC) consisted of a 2 kg-per-day electrolyzer, metal-hydride based hydrogen storage units and a 5 … more
Date: November 11, 2008
Creator: Motyka, T
Partner: UNT Libraries Government Documents Department
open access

Critical Vacancy-Driven Phenomena in High-Energy Ion-Implanted Silicon

Description: High-energy (MeV) ion implantation is now being rapidly introduced into integrated circuit manufacturing because it promises process simplification and improved device performance. However, high-energy implantation introduces an imbalance of excess vacancies and vacancy-cluster defects in the near-surface region of a silicon crystal. These defects interact with dopants affecting diffusion and electrical activation during subsequent processing. The objective of this project was to develop suffic… more
Date: November 11, 2008
Creator: Haynes, T.E.
Partner: UNT Libraries Government Documents Department
open access

Assessment of the application of the sputtering process to beryllium for hardening optical coatings

Description: Two principal deposition processes are compared for the case of depositing 1 to 2 ..mu..m beryllium on fused-silica substrates. While the evaporation-deposition process offers advantages such as higher deposition rate, purification of the evaporant and efficient use of masks, the sputter-deposition is more versatile, and therefore more effective, in varying and controlling the microstructure of the deposits. The versatility comes about because the latter process has five major operational param… more
Date: November 11, 1985
Creator: Chen, C.W. & Alford, C.S.
Partner: UNT Libraries Government Documents Department
open access

Tables and graphs of photon-interaction cross sections from 0. 1 keV to 100 MeV derived from the LLL evaluated-nuclear-data library

Description: Energy-dependent evaluated photon interaction cross sections and related parameters are presented for elements H through Cf(Z = 1 to 98). Data are given over the energy range from 0.1 keV to 100 MeV. The related parameters include form factors and average energy deposits per collision (with and without fluorescence). Fluorescence information is given for all atomic shells that can emit a photon with a kinetic energy of 0.1 keV or more. In addition, the following macroscopic properties are given… more
Date: November 11, 1981
Creator: Plechaty, E.F.; Cullen, D.E. & Howerton, R.J.
Partner: UNT Libraries Government Documents Department
open access

Fraunhofer Diffraction Pattern Produced by a Slit of Varying Width and its Application to High Speed Cameras

Description: Abstract: "A theoretical and experimental investigation is made of the diffraction pattern produced by a slit, whose aperture varies uniformly from a constant value A to zero. The results of this investigation are applied to a proposed high speed camera. It is shown that diffraction effects are very serious and cannot be neglected. It seems, unless the suggested design of this high speed camera is changed, the camera will be of little use for accurate measurements, and photographs will show too… more
Date: November 11, 1947
Creator: Geiger, F. E. & Brixner, Berlyn
Partner: UNT Libraries Government Documents Department
open access

Positron acceleration to 200 MeV

Description: 220 MeV is the energy that has to be obtained in routine operation. A standard 12m girder with SLED II can give 220 MeV minus a few percent due to not riding at the crest of the wave. In order to have the 200 MeV with only one girder, a klystron at full power all the time would be required - kept brand new. Then, for safety it is necessary to use two klystrons as designated in the SLC design. Having two klystrons gives freedom for the choice of the best arrangement. Since there will be excess r… more
Date: November 11, 1983
Creator: Leboutet, H.
Partner: UNT Libraries Government Documents Department
open access

Solar heating and cooling systems design and development: quarterly report

Description: This program calls for the development and delivery of eight prototype solar heating and cooling systems for installation and operational test. Two heating and six heating and cooling units will be delivered for single-family residences, multiple-family residences and commercial applications. This document describes the progress of the program during the fifth program quarter, 1 July 1977 to 30 September 1977.
Date: November 11, 1977
Partner: UNT Libraries Government Documents Department
open access

Experience with anthracite - sand filters

Description: The General Electric Company operates eight large filter plants for the Atomic Energy Commission at the Hanford works in the state of Washington. Because of the importance of water to the process, research and development on water treatment has been an important part of the overall Hanford research and development program. The research and development on water treatment has resulted in important capital and operating savings and in the production of better quality water. It is the purpose of th… more
Date: November 11, 1960
Creator: Conley, W.R.
Partner: UNT Libraries Government Documents Department
open access

Instructions for borehole sampling

Description: Geologic systems generally are complex with physical properties and trends that can be difficult to predict. Subsurface geology exerts a fundamental control on groundwater flow and contaminant transport. The primary source for direct observation of subsurface geologic information is a borehole. However, direct observations from a borehole essentially are limited to the diameter and spacing of boreholes and the quality of the information derived from the drilling. Because it is impractical to dr… more
Date: November 11, 1994
Creator: Reynolds, K. D. & Lindsey, K. A.
Partner: UNT Libraries Government Documents Department
open access

Activity of fission products

Description: This report compares the activity and disintegration energy of fission products from metal under two conditions of exposure: 200 Megawatt-days integrated exposure over a period of 180 days, and 400 Megawatt-days integrated exposure over a period of 360 days. (JL)
Date: November 11, 1948
Creator: Garbrecht, M. & Gillette, P. R.
Partner: UNT Libraries Government Documents Department
open access

The single electron chemistry of coals. Quarterly report, July 1--September 30, 1992

Description: Depolymerization of coals at low temperatures may offer advantages over thermal bond cleavage. Because bond cleavage energies of radical cations are lower than the corresponding homolytic bond cleavage energies of the same bond, generation of radical cations in coal may make possible depolymerization at lower temperatures. We seek to investigate the above possibility using single molecules containing functional groups common in coals. Since the generation of a radical cation requires the remova… more
Date: November 11, 1992
Creator: Larsen, J. W. & Eskay, T. P.
Partner: UNT Libraries Government Documents Department
open access

2D deterministic radiation transport with the discontinuous finite element method

Description: This report provides a complete description of the analytic and discretized equations for 2D deterministic radiation transport. This computational model has been checked against a wide variety of analytic test problems and found to give excellent results. We make extensive use of the discontinuous finite element method.
Date: November 11, 1993
Creator: Kershaw, D. & Harte, J.
Partner: UNT Libraries Government Documents Department
open access

Preliminary survey, Reactor formation of rhenium-tungsten alloy

Description: This document considers the costs of rhenium formation as produced by irradiating tungsten. Two isotopic compositions of tungsten are considered for the study. The cost for reactor-formed rhenium appears to be prohibitively high -- over $20 per gram. This cost would exist for tungsten containing 90% 186, 9, 184, and 1% tungsten 182 and 183. The cost of alloy made fro natural isotopic compositions of tungsten would be higher by a factor of 3, and would take prohibitively long to produce signific… more
Date: November 11, 1963
Creator: Lang, L. W. & Meichle, R. H.
Partner: UNT Libraries Government Documents Department
open access

Production of tungsten-rhenium alloys in N-reactor

Description: This report contains the feasibility and cost data for the production of tungsten-rhenium alloys from tungsten targets in the N-Reactor. The two types of target elements assumed were: (a) tungsten containing 90 a/o tungsten-186, 9 a/o tungsten-184 and 1 a/o tungsten-183 and 182, and (b) tungsten of natural isotopic composition.
Date: November 11, 1963
Creator: Riches, J. W.
Partner: UNT Libraries Government Documents Department
open access

Corrosion test of irradiated uranium in monoisopropylbiphenyl (RM-171)

Description: The use of organic cooling media for nuclear reactors operating at high power levels predicates the use of a coolant which will not react violently with metallic uranium in the event of a fuel element failure. This report describes the testing, and subsequent examination, of two pieces of irradiated uranium which were immersed in monoisopropylbiphenyl (MIPB) at high temperatures and pressures for periods of time up to twenty-five days. The uranium samples had different irradiation histories and… more
Date: November 11, 1958
Creator: Brandt, R. L.
Partner: UNT Libraries Government Documents Department
open access

Fringe isotope production

Description: The purpose of this work has been to determine the production rate of tritium in fringe Li-Al alloy columns with the degree of precision necessary for economic analyses of such reactor loadings. These results are provided for use in such an analysis. This experiment indicates the production rate of tritium in the outermost fringe tubes to be T = 0.0216 M{sub E} = 0.175 M{sub t} where T = grams of tritium per full length (67 pieces) charge of Li-Al alloy material; M{sub E} = MWD/adjacent ton of … more
Date: November 11, 1958
Creator: Bunch, W. L.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen