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Analysis of the heat and mass transfer processes of a UO/sub 2/ bubble in sodium for the Fuel Aerosol Simulant Test (FAST). [LMFBR]

Description: The anticipated behavior of uranium oxide vapor bubbles produced by the capacitor discharge vaporization (CDV) method in the Fuel Aerosol Simulant Test (FAST) Facility is discussed on the basis of relatively simple physical models. Results of calculations for the rate of bubble rise and for heat and mass transfer rates are presented. Parametric studies indicate that future analysis efforts should emphasize the diffusion condensation process and the loss of heat from the bubble by radiation. Tra… more
Date: April 17, 1979
Creator: Tobias, M.L.
Partner: UNT Libraries Government Documents Department
open access

Solar central receiver hybrid power system. Monthly technical progress report for the month of December 1978

Description: Levelized busbar energy costs for the sodium-cooled hybrid central receiver concept using both oil and coal as a fuel were developed as a function of the plant capacity factor and as a function of the solar multiple. The fuel escalation question was reviewed in detail on the basis of past historical data, and it was concluded that the lower escalation numbers that are provided in the requirements definition document appear to be more likely to represent the real situation. Subsystem-level trade… more
Date: January 17, 1979
Partner: UNT Libraries Government Documents Department
open access

Integrated system for production of neutronics and photonics calculational constants. Volume 21, Part C, Program SIGMAL (version 79-1): Doppler-broaden evaluated cross sections in the Livermore-Evaluated Nuclear Data Library (ENDL) format. [In FORTRAN IV for CDC 7600]

Description: A code, SIGMAL, to Doppler-broaden evaluated cross sections in the ENDL format was designed. This code can Doppler-broaden cross sections that result from neutrons, protons, deuterons, tritons, /sup 3/He, or alpha particles incident on any target nuclei. The code allows broadening to up to 100 final temperatures, either directly from the initial temperature or by bootstrapping to successively higher temperatures. 6 figures, 2 tables.
Date: March 17, 1979
Creator: Cullen, D.E.
Partner: UNT Libraries Government Documents Department
open access

Two stream instability in electron storage rings

Description: Electron bunches in storage rings can ionize the background gas and depending on the bunch length and spacing between bunches the ions formed can be trapped by the electron space charge forces. It is the purpose of this note to show that the possibility of exciting the two stream instability then exists. This instability if excited would saturate by giving thermal velocity to the electrons i.e., by blowing up the emittance of the beam. Experiments carried out at ADONE have observed an increase … more
Date: August 17, 1979
Creator: Irani, A.A.
Partner: UNT Libraries Government Documents Department
open access

Velocity distribution in a pinched beam

Description: An explicity procedure is given for distributing transverse velocities to simulate a self pinched beam of specified density profile. The flat top, Bennett and Gaussian profiles are worked examples.
Date: September 17, 1979
Creator: Lee, Edward P.
Partner: UNT Libraries Government Documents Department
open access

Potassium terbium fluoride crystal growth development for faraday rotator discs fabrication, 6 July 1978--6 February 1979

Description: Crystal growth experiments were performed and growth of KTb/sub 3/F/sub 10/ crystals were accomplished. The crystal growth experiments consisted of hot zone modification and development of growth parameters. Several boules of KTb/sub 3/F/sub 10/ 30 to 40mm in diameter and one boule 50mm in diameter were grown at rates varying from .5mm/hr to 3.0mm/hr. The crystals evaluated display excellent optical quality. The optical path distortion was less than 0.5 fringe/cm at 633nm as viewed in Twyman--G… more
Date: May 17, 1979
Partner: UNT Libraries Government Documents Department
open access

Recent developments in LOFT advanced fuel rod instrumentation

Description: Progress is reported in the areas of fuel centerline temperature measurement, fuel rod pressure measurement, fuel rod axial motion, and upper plenum gas temperature measurement.
Date: July 17, 1979
Creator: Sheen, E. M.; Billeter, T. R.; Cannon, C. P.; Chan, A. I. Y. & Stringer, J. L.
Partner: UNT Libraries Government Documents Department
open access

Aerial radiometric and magnetic survey: Death Valley National Topographic Map, Nevada, California

Description: The results of analysis of the airborne gamma radiation survey flown for the region identified as the Death Valley National Topographic Map NJ11-11 is presented in the bound Volume of this report. The airborne data gathered are reduced by ground computer facilities to yield profile plots of the basic uranium, thorium and potassium equivalent gamma radiation intensities, ratios of these intensities, aircraft altitude above the earth's surface, total gamma ray and earth's magnetic field intensity… more
Date: September 17, 1979
Partner: UNT Libraries Government Documents Department
open access

E-537 MWPC amplifier

Description: The design of a fast MWPC amplifier for the beam chambers and the absorber chamber is completed and all parts are on order. A prototype 16 channel board has been built and satisfactorily tested. Artwork is completed for the board and out to be photographed. The board fabrication contract has been let. Listed below is a summary of the amplifier characteristics as well as test results obtained with the prototype.
Date: September 17, 1979
Creator: Kephart, R. & Kerns, C.
Partner: UNT Libraries Government Documents Department
open access

Bioassay at uranium mills: a discussion of Nuclear Regulatory Commission regulatory guide 8. 22

Description: this report is a study of Nuclear Regulatory Commission (NRC) requirements for bioassay at uranium mills, using the AERIN Code developed at Lawrence Livermore Laboratory. It demonstrates that the minimum levels of detection required by the NRC in urinalysis and in in vivo lung counts are reasonable and than the frequency of sampling is adequate.
Date: January 17, 1979
Creator: King, W.C.
Partner: UNT Libraries Government Documents Department
open access

Convection and thermal radiation analytical models applicable to a nuclear waste repository room

Description: Time-dependent temperature distributions in a deep geologic nuclear waste repository have a direct impact on the physical integrity of the emplaced canisters and on the design of retrievability options. This report (1) identifies the thermodynamic properties and physical parameters of three convection regimes - forced, natural, and mixed; (2) defines the convection correlations applicable to calculating heat flow in a ventilated (forced-air) and in a nonventilated nuclear waste repository room;… more
Date: January 17, 1979
Creator: Davis, B.W.
Partner: UNT Libraries Government Documents Department
open access

One-dimensional model calculations of EBT-P performance

Description: Model calculations are described for possible EBT-P designs using a one-dimensional, fluid-transport code. We begin by giving a detailed description of our most updated and complete version of the code itself, so that the appendix is, as far as practical, self-contained. Calculations were performed with the code for the EBT-1 experiment to compare with previous ORNL calculations. One-dimensional calculations for possible EBT-P experimental designs were presented.
Date: October 17, 1979
Creator: Hamasaki, S.; Klein, H. H. & McBride, J. B.
Partner: UNT Libraries Government Documents Department
open access

Analysis of airborne radiometric data. Volume 4. MAZNAI code for gamma-ray spectral enhancement

Description: In gamma-ray spectrometry measurements, an energy distribution of gamma-rays is viewed by a spectrometer which in turn produces a data set. This data is the result of a complex detection process and generally suffers from loss of resolution due to this detection process and to statistical noise. It is the purpose of the MAZNAI computer program to remove the degrading effects of the detector, to minimize the effects of statistical fluctuations, and to construct an enhanced image spectrum that co… more
Date: January 17, 1979
Creator: Reed, J. H.; Shreve, D. C. & Sperling, S. M.
Partner: UNT Libraries Government Documents Department
open access

Waste incineration and immobilization for nuclear facilities. Status report, October 1977--March 1978

Description: Fluidized bed incineration and processes for immobilization of wastes generated at nuclear facilities are undergoing development. After minor piping modifications to eliminate dust collecting points, a pilot plant fluidized bed incinerator run of 225 continuous hours was successfully completed in a demonstration of component reliability. Vitrification of incinerator ash and other wastes is now being accomplished using a pilot scale unit developed as a continuous flow process.
Date: May 17, 1979
Creator: Johnson, Andrew J.; Burkhardt, Scott C.; Ledford, J. Andrew & Williams, Paul M.
Partner: UNT Libraries Government Documents Department
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