UNT Libraries Government Documents Department - 51 Matching Results

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Abundances and Spectra for Cosmic-Ray Nuclei from Li to Fe For 2to 150 GeV/n

Description: We report measurements of the absolute and relative abundances, differential energy spectra, and spectral indices for cosmic-ray nuclei from Li to Fe for 2 to 150 GeV/nucleon. These measurements were made using a balloon-borne superconducting magnetic spectrometer with scintillators and optical spark chambers. The abundances of Li, Be, and B for rigidities below 10 GV/c are consistent with an energy-independent mean interstellar pathlength of 4 1/2 {+-} 1/2 g cm{sup -2} for all propagation mode… more
Date: March 27, 1978
Creator: Orth, Chalres D.; Ruffington, Andrew; Smoot, George F. & Mast,Terry S.
Item Type: Refine your search to only Article
open access

Alternative oxide fuel pellet fabrication for irradiation testing. [LMFBR]

Description: Fabrication of experimental breeder reactor fuel pellets by the common cold-press-and-sinter technique for irradiation testing in EBR-II is discussed. Fuel types include mixed thoria-plutonia, UO/sub 2/ enriched with 22 weight percent /sup 233/U in U, UO/sub 2/ enriched with thirty-four weight percent /sup 235/U in U, and mixed urania-plutonia.
Date: October 27, 1978
Creator: Rasmussen, D. E.; Jentzen, W. R. & McCord, R. B.
Item Type: Refine your search to only Article
open access

Analysis of advanced conceptual designs for single-family-sized absorption chillers. Annual report

Description: The objectives of the research reported is to develop and analyze new concepts for absorption cycles to improve the performance or reduce the cost of a 3-ton absorption chiller that can be used with solar collected heat. New refrigerant-absorbent pairs are investigated, as are additives to currently used refrigerant-absorbent pairs. Results are given of a literature search on those topics. An initial screening is reported to check the values of the heats of mixing of candidate refrigerants and … more
Date: September 27, 1978
Item Type: Refine your search to only Report
open access

Atomic absorption spectrometer readout and data reduction using the LSI-11 microcomputer

Description: Some common instruments found in the chemistry laboratory have analog chart recorder output as their primary data readout media. Data reduction from this medium is slow and relatively inaccurate. This paper describes how to interface a single LSI-11 microcomputer to PERKIN-ELMER models 603 and 303 Atomic Absorption Spectrophotometers.
Date: November 27, 1978
Creator: Allen, Michael J. & Wikkerink, Robert W.
Item Type: Refine your search to only Article
open access

Availability and reliability improvement program

Description: The goal of TVA's Availability Improvement Program for its fossil-fueled power plants is to increase plant availability from 79 to 83%, to reduce the forced outage rate from 10 to 7%, and to reduce the equivalent outage rate related to forced deratings from 6 to 2%. As background for this program historical data on plant availabilities, trends toward improved availability, factors which contribute to current reliability, and ongoing programs to improve fossil-fueled plant reliability are discus… more
Date: June 27, 1978
Item Type: Refine your search to only Report
open access

Battery technology - an assessment of the state of the art

Description: A state-of-the-art battery survey and data verification process were conducted with battery manufacturers and organizations involved in battery technology research and development. This report addresses those major battery technologies which were identified as either being developed or explored as potential candidates for major energy storage applications in electric utilities or transportation as well as for future operations with solar or wind energy systems. Near- and far-term battery system… more
Date: March 27, 1978
Item Type: Refine your search to only Report
open access

Brine-Steam Properties Computer Program for Geothermal Energy Calculations. [BPROP7 Code]

Description: A computer program called BPROP7 was written to enable the user to obtain conveniently the thermodynamic properties of brine and water vapor in combination, given at least three of nine parameters. The parameters included in this program are two types of salt content, temperature, pressure, enthalpy, entropy, density or specific volume, quality, and amount of superheat.
Date: June 27, 1978
Creator: Miller, A. B.
Item Type: Refine your search to only Report
open access

Chemical research at Rocky Flats

Description: An overview of the research projects in the Chemical Research group will be given. The work involves actinide waste and processing chemistry, separations chemistry, radiation studies, and calorimetry and thermodynamics. Details will be given of the actinide separations research, including work with macroreticular anion exchangers and bidentate organophosphorus extractants.
Date: February 27, 1978
Creator: Navratil, J. D.
Item Type: Refine your search to only Report
open access

Detection and Measurement of Curium in the Marine Environment

Description: Transuranium elements have been introduced to the environment by a variety of ways including fallout from weapons testing, leakage from nuclear power reactors, waste effluent from nuclear fuel processing and leakage of radioactive waste from ocean dump sites. Several methods of curium detection and analysis in samples from marine ecosystems are contrasted and discussed in this paper.
Date: October 27, 1978
Creator: Schneider, D. L. & Livingston, H. D.
Item Type: Refine your search to only Article
open access

Development of mullite substrates and containers. silicon sheet growth development for the Large Area Silicon Sheet Task of the Low-Cost Silicon Solar Array Project. Quarterly report No. 2

Description: A study to develop, evaluate, and fabricate mullite for use in molten silicon containers and silicon sheet substrates for the Low-Cost Silicon Solar Array Project is described. Compositional variations in Mullite formulations have been found to lower the thermal expansion of Mullite. Increased glass phase has been found to lower thermal expansion of fired Mullite bodies. Attempts to lower the thermal expansion to that of Silicon are underway. Sessile drop experiments on a series of composition … more
Date: June 27, 1978
Creator: Wirth, D. G. & Sibold, J. D.
Item Type: Refine your search to only Report
open access

Development of ultrafiltration and inorganic adsorbents for reducing volumes of low-level and intermediate-level liquid waste: January--March 1978

Description: The exposure of noncellulosic ultrafiltration membranes to a radioactive environment simulating up to 24 months of exposure to a beta dose of 10 ..mu..Ci/cm/sup 3/ and a gamma dose of 10/sup -5/ ..mu..Ci/cm/sup 3/ did not show any conclusive evidence of membrane degradation. Viscosity measurements for control membranes and irradiated membranes indicate no changes in polymer molecular weight were caused by the radiation exposure. This, in turn, suggests no physical or mechanical degradation took… more
Date: April 27, 1978
Creator: Koenst, J. W.; Herald, W. R. & Roberts, R. C.
Item Type: Refine your search to only Report
open access

Diffusion welding multifilament superconductive composites

Description: Diffusion welding is shown to be a feasible method for joining composites of niobium-titanium superconductor alloy filaments in a pure copper matrix. Good results were repeatedly obtained using 15/sup 0/ scarf joints welded with externally heated tooling and simple uniaxial compression loading in a conventional hydraulic press. Weld cycles of less than one hour total elapsed time were readily attainable. Through proper closed-die design, it was possible to increase welding pressure sufficiently… more
Date: February 27, 1978
Creator: Witherell, C.E.
Item Type: Refine your search to only Article
open access

Evaluation report Sandia Plutonium Protection System operational demonstration

Description: Sandia Laboratories of Albuquerque, New Mexico, has developed an advanced plutonium storage system. The system provides protection for and accountability of material in storage and controls personnel access to storage areas. This storage system has been installed and operationally demonstrated at the Rockwell Hanford Operations Z-Plant facility. All demonstration transactions were performed by Z-Plant personnel. The demonstration was carried out to evaluate the system operation using special nu… more
Date: November 27, 1978
Creator: Wilbur, G. E.
Item Type: Refine your search to only Report
open access

Evaporative removal of sodium: interim progress report and preliminary facility specification

Description: A summary of the current Evaporative Removal of Sodium (ERNA) activities at the Energy Systems Group is presented. Also included is a review of earlier work on sodium evaporation. As a result of this work it was concluded that the ERNA process was extremely successful and worthy of future consideration as a recognized process for reactor components. Also included in the report is a Preliminary Outline Specification for a large facility to remove sodium from full size CRBR fuel rod assemblies.
Date: September 27, 1978
Creator: Welch, F. H.
Item Type: Refine your search to only Report
open access

Experiment definition and integration study for the accommodation of magnetic spectrometer payload on spacelab/shuttle missions. Final report, June 13, 1977--July 1, 1978. Space Sciences Laboratory Series 19, Issue 45

Description: A version of the High Energy Astronomical Observatory (HEAO) magnetic spectrometer which is updated for the space shuttle sortie mode is described. A stripped-down experiment is considered with a magnetic spectrometer alone, even though any real space shuttle magnetic spectrometer experiment would almost certainly include other detectors. Problems relating specifically to superconducting magnetic spectrometers are studied. In particular, almost all of the support provided for this contract was … more
Date: June 27, 1978
Creator: Buffington, A.
Item Type: Refine your search to only Report
open access

Fluidized bed incineration system for U. S. Department of Energy defense waste. Status report, July--December 1976. [Defense waste]

Description: A fluidized-bed incineration facility has been designed for installation at the Rocky Flats Plant. The purpose is to develop and demonstrate the process for the combustion of transuranic waste. The unit capacity will be about 82 kg/hr of combustible waste. The combustion process will utilize in situ neutralization of acid gases generated in the process. The equipment design is based on data generated on a pilot scale unit and represents a scale-up factor of nine. Title II engineering is complet… more
Date: March 27, 1978
Creator: Richey, Lewis L.; Faccini, Peter T. & Feng, Pen K.
Item Type: Refine your search to only Report
open access

Hybrid photovoltaic/thermal solar energy system

Description: Heating and cooling systems that use hybrid solar energy collectors (combination photovoltaic-thermal) have the potential for considerable energy savings, particularly when the system includes a heat pump. Economic evaluations show that photovoltaic systems are potentially most economical, but results depend critically on future collector costs as well as energy prices. Results are based on a specially developed computer program that predicted the total auxiliary energy required for five differ… more
Date: March 27, 1978
Creator: Kern, E. C. Jr. & Russell, M. C.
Item Type: Refine your search to only Report
open access

Hydrogen attack of steel. Progress report, April 1, 1978--March 31, 1979

Description: Four normalized carbon steels made in different ways (Si-killed, Al-killed, REM-treated, and electroslag refined) were studied to determine the role of differing fine inclusions on the early stages of hydrogen attack (HA). Hydrogen exposures were made at 450/sup 0/C (6.5 MPa) and 375/sup 0/C (7.6 MPa). The first stage of HA is shown to be the development of a closely spaced (1-2 ..mu..m) array of small bubbles over the ferrite/pearlite, or occasionally the ferrite/ferrite boundaries. These grew… more
Date: December 27, 1978
Creator: Shewmon, P. G.
Item Type: Refine your search to only Report
open access

Intensified CCD for ultrafast diagnostics

Description: Many of the present laser fusion diagnostics are recorded on either ultrafast streak cameras or on oscilloscopes. For those experiments in which a large volume of data is accumulated, direct computer processing of the information becomes important. We describe an approach which uses a RCA 52501 back-thinned CCD sensor to obtain direct electron readouts for both the streak camera and the CRT. Performance of the 100 GHz streak camera and the 4 GHz CRT are presented. Design parameters and computer… more
Date: September 27, 1978
Creator: Cheng, J.; Tripp, G. & Coleman, L.
Item Type: Refine your search to only Article
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