24 Matching Results

Search Results

Results: 1 - 24
open access

Preliminary examination of the Linear Free-Electron Laser

Description: The Linear Free Electron Laser is numerically analyzed in the one dimensional limit by following an average (resonant) particle. Several different wiggler schemes are presented, and electron beam current density requirements are discussed. A variable phase angle buncher is also proposed.
Date: February 5, 1979
Creator: Prosnitz, D. & Szoke, A.
Partner: UNT Libraries Government Documents Department
open access

Improving the performance of brine wells at Gulf Coast strategic petroleum reserve sites

Description: At the request of the Department of Energy, field techniques were developed to evaluate and improve the injection of brine into wells at Strategic Petroleum Reserve (SPR) sites. These wells are necessary for the disposal of saturated brine removed from salt domes where oil is being stored. The wells, which were accepting brine at 50 percent or less of their initial design rates, were impaired by saturated brine containing particulates that deposited on the sand face and in the geologic formatio… more
Date: November 5, 1979
Creator: Owen, L.B. & Quong, R. (eds.)
Partner: UNT Libraries Government Documents Department
open access

Powerplant Productivity. Improvement Study: current practices in Illinois utilities towards powerplant productivity. Final report, Project 1, Task 1

Description: Efforts of this task indicate that powerplant productivity is a complex issue that has to take into account economic factors, equipment limitations, and system-loading characteristics as well as external constraints such as regulatory requirements. Among the specific findings are: (1) utilities in Illinois use the industry-wide measures of performance such as capacity factor, availability factor, forced outage rates etc.; equivalent availability as a measure is not in common practice; (2) sever… more
Date: April 5, 1979
Partner: UNT Libraries Government Documents Department
open access

Powerplant Productivity Improvement Study: benefits of improved powerplant reliability. Final report, Project 2, Task 2

Description: A summary of total cumulative fuel consumption differences by fuel type through 1990 for four improvement scenarios is presented for Commonwealth Edison Company (CE) and for Illinois Power Company (IP). In all scenarios, liquid-fuel consumption is reduced. Generation is shifted to the coal and/or nuclear units for which improved availability has been assumed. For a 2% improvement in both planned (POR) and forced outage rates (FOR), a total of more than 16 million barrels of No. 6 oil will have … more
Date: June 5, 1979
Partner: UNT Libraries Government Documents Department
open access

Conceptual design report for solar production of industrial process steam ranging in temperature from 300 to 550/sup 0/F. Phase 1, September 30, 1978-June 30, 1979

Description: The conceptual design of a solar process steam system began with studies and evaluations of various alternative design configurations. From these evaluations a final candidate design configuration was selected which is to be used for further detailed analysis and engineering. An evaluation of various types of distributed collector systems is presented. Cost-effectiveness of various distributed collectors was determined on the basis of total relative cost (including foundation and installation) … more
Date: January 5, 1979
Creator: Gupta, G.D.
Partner: UNT Libraries Government Documents Department
open access

Kerma factors for neutron and photons with energies below 20 MeV

Description: A comprehensive set of kerma factors for neutrons and photons has been computed for the International Commission on Radiological Protection's (ICRP) standard man, ICRP soft tissue, ICRP red bone marrow, ICRP eye lens, H/sub 2/O, dry air, Al, Si, /sup 32/S, Ar, and four thermoluminescent dosimeter materials. The energy range for neutrons is 10/sup -9/ to 20 MeV, divided into 175 energy groups. For photons, the energy range is 10/sup -3/ to 20 MeV, and kerma factors are calculated at 144 energy v… more
Date: November 5, 1979
Creator: Singh, M.S.
Partner: UNT Libraries Government Documents Department
open access

Aerial radiometric and magnetic survey: Bozeman National Topographic Map, Montana

Description: The results of analyses of the airborne gamma radiation and total magnetic field survey flown for the region identified as the Bozeman National Topographic Map NL12-8 are presented in Volume I and II 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 magn… more
Date: April 5, 1979
Partner: UNT Libraries Government Documents Department
open access

Nuclear chemistry counting facilities: requirements definition

Description: In an effort to upgrade outdated instrumentation and to take advantage of current and imminent technologies the Nuclear Chemistry Division at Lawrence Livermore Laboratory is about to undertake a major upgrade of their low level radiation counting and analysis facilities. It is expected that such a project will make a more coordinated data acquisition and data processing system, reduce manual data handling operations and speed up data processing throughput. Before taking on a systems design it … more
Date: April 5, 1979
Creator: O'Brien, D.W. & Baker, J.
Partner: UNT Libraries Government Documents Department
open access

On-line structural response analysis: using the extended Kalman estimator/identifier

Description: This report disucsses the development of on-line state and parameter estimators used to analyze the structural response of buildings. The estimator/identifier is an extended Kalman filter (EKF), which has been applied with great success in other technological areas. It is shown that the EKF can perform quite well on simulated noisy structural response data.
Date: May 5, 1979
Creator: Candy, J.V.
Partner: UNT Libraries Government Documents Department
open access

High-energy air shock study in steel and grout pipes

Description: Voitenko compressors are used to generate 43 mm/..mu..s air shocks in both a steel and a grout outlet pipe containing ambient atmospheric air. Fiber-optic ports provide diaphragm burst times, time-of-arrival (TOA) data, and velocities for the shock front along the 20-mm-ID exit pipes. Pressure profiles are obtained at higher enthalpy shock propagation than ever before and at many locations along the exit pipes. Numerous other electronic sensors and postshot observations are described, as well a… more
Date: October 5, 1979
Creator: Glenn, H. D.; Kratz, H. R.; Keough, D. D.; Duganne, D. A.; Ruffner, D. J.; Swift, R. P. et al.
Partner: UNT Libraries Government Documents Department
open access

Chemistry research and development. Progress report, November 1978-April 1979

Description: The status of the following studies is given: calorimetry and thermodynamics of nuclear materials; americium recovery and purification; optimization of the cation exchange process for recovering americium and plutonium from molten net extraction residues; evaluation and comparison of bidentate extractants and methods for actinide recovery; a combined anion exchange-bidontate organophosphorus extraction process for molten salt extraction residues; a combined anion exchange-extraction chromatogra… more
Date: October 5, 1979
Creator: Miner, F. J.
Partner: UNT Libraries Government Documents Department
open access

Power plant dispatch study: an analysis of the PIES model of electric utility dispatch

Description: The electric utility sector sub-model within PIES uses a number of modeling approximations in order to formulate the power plant dispatch in a linear programming framework. Several such modeling details were studied using a probabilistic dispatch model (PROMOD III) to quantify the error introduced by each. These tests indicate that PIES tends to significantly underpredict the consumption of high cost fuels (distillates, etc.) by the electric utility sector. Two adjustments to the PIES model are… more
Date: November 5, 1979
Creator: Sustman, J.E.
Partner: UNT Libraries Government Documents Department
open access

Phase 2 of the Array Automated Assembly Task for the Low Cost Solar Array Project. Quarterly report No. 7, April 1-June 30, 1979

Description: The major objective of this program is to define and verify a process sequence for the fabrication of solar cell modules from dendritic web silicon. Another objective is the development of key process steps. The process sequence and the individual steps must be amenable to automation and low cost manufacturing methods so that the target selling price of $0.70/watt peak (1980$ in 1986) can be achieved. Two process specifications supplied by other contractors have been tested. The Al Silk Screeni… more
Date: September 5, 1979
Creator: Campbell, R. B.; Rai-Choudhury, P.; Seman, E. J.; Rohatgi, A.; Davis, J. R.; Ostroski, J. W. et al.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of methods for cleaning low carbon uranium metal and alloy samples

Description: Several methods for cleaning uranium samples prior to carbon analysis, using a Leco Carbon Analyzer, were evaluated. Use of Oakite Aluminum NST Cleaner followed by water and acetone rinse was found to be the best overall technique.
Date: July 5, 1979
Creator: Kirchner, K. & Dixon, M.
Partner: UNT Libraries Government Documents Department
open access

Department of Energy FY 1980 obligations and costs-by-state

Description: Detailed estimates shown for the respective states are based largely on existing contracts and grants which are assumed to continue in 1980. Some DOE programs cannot be identified at the contractor level, and some elements of programs cannot be identified by states. These are listed in an Undesignated category. FY 1979 estimates are given; it is felt that Congressional actions on the FY 1980 budgets may affect the estimates shown.
Date: February 5, 1979
Partner: UNT Libraries Government Documents Department
open access

Survey of transmission line corridors. [Data on delays in transmission line construction]

Description: The intent of this study is to determine the extent of delays experienced in planning and constructing transmission lines in the continental United States. The reasons for the delays are identified for each line studied and their effect on the total electrical system is sought. Data was collected for 136 different lines either recently built or currently under study. Statistics were developed for each line in several categories and comparisons of lines delayed were made by company, area served … more
Date: January 5, 1979
Partner: UNT Libraries Government Documents Department
open access

Nondestructive, energy-dispersive x-ray fluorescence analysis of product-stream concentrations from reprocessed LWR fuels

Description: Energy-dispersive x-ray fluorescence analysis can be used for quantitative on-line monitoring of the product concentrations in single- or dual-element process streams in a reprocessing plant. The 122-keV gamma ray from /sup 57/Co is used to excite the K x-rays of uranium and/or plutonium in nitric acid solution streams. A collimated HPGe detector is used to measure the excited x-ray intensities. Net solution radioactivity may be measured by eclipsing the exciting radiation, or by measuring it s… more
Date: January 5, 1979
Creator: Camp, D. C.; Ruhter, W. D. & Benjamin, S.
Partner: UNT Libraries Government Documents Department
open access

Nondestructive assay of mixed uranium--plutonium oxides by gamma-ray spectrometry

Description: Gamma-ray spectroscopy measurements have been made on mixed uranium and plutonium oxides in sealed containers to determine the uranium and plutonium enrichment and isotopics. Experimental results obtained using two different methods were in good agreement with the known contents. The first method is applicable to thick samples of freshly reprocessed mixed oxide and determines isotopic abundances from measured absolute gamma-ray intensities. Measurement times depend on plutonium enrichment, but … more
Date: January 5, 1979
Creator: Ruhter, W. D. & Camp, D. C.
Partner: UNT Libraries Government Documents Department
open access

TMX supermodel

Description: The TMX Supermodel is an attempt to synthesize all presently known experimental observations and theoretical scaling laws concerning particle and energy losses into a comprehensive zero-dimensional description of plasma confinement in the center cell and plugs of TMX. A list of important loss processes and physical effects included in the present state of evolution of the supermodel is given.
Date: March 5, 1979
Creator: Logan, B. G.
Partner: UNT Libraries Government Documents Department
open access

Fluid-flow monitoring using electromagnetic probing

Description: High-frequency electromagnetic probing is used to monitor the rate and direction of flow of fluids injected into the ground. This method shows the potential for providing more detailed information than procedures presently used. The experimental technique and the test-of-concept experimental results are discussed. This technique has applications in oil-reservoir engineering and in hydrology studies concerning storage of chemical and nuclear wastes. 11 figures.
Date: October 5, 1979
Creator: Lytle, R.J.; Lager, D.L.; Laine, E.F.; Salisbury, J.D. & Okada, J.T.
Partner: UNT Libraries Government Documents Department
open access

Progress report: qualitative differences between first and second order fit of pressure data - 1/5 scale Mk I BWR pressure suppression experiment and analysis program

Description: Results are presented for the 1/5-scale Mark I boiling water reactor pressure suppression experiment. The objective of this study is to calculate the hydrodynamic vertical load function (HVLF) and the maximum download and maximum upload ratios for the 90/sup 0/ sector to 7.5/sup 0/ section (i.e., the 3D to 2D ratios) together with their associated error bounds. Special graphs are presented of the pressure data that are useful in diagnostic studies of the HVLF. These graphs are three dimensional… more
Date: January 5, 1979
Creator: Carr, E.; Lai, W. & McCauley, E.
Partner: UNT Libraries Government Documents Department
open access

Apparatus and techniques for the study of precipitation of solids and silica from hypersaline geothermal brine

Description: The kinetics of precipitation reactions in geothermal brines can be studied accurately only if the brine samples are collected and examined under anaerobic conditions and with minimum cooling. Apparatus and techniques were developed that achieve this for brine temperatures below 100/sup 0/C. The concentration of suspended solids is measured gravimetrically after filtration, and the concentration of dissolved silica is measured by atomic absorption spectrophotometry. Data from Woolsey No. 1 well… more
Date: July 5, 1979
Creator: Hill, J. H.; Harrar, J. E.; Otto, C. H., Jr.; Deutscher, S. B.; Crampton, H. E.; Grogan, R. G. et al.
Partner: UNT Libraries Government Documents Department
open access

Regional wind-field study in complex terrain during summer sea-breeze conditions

Description: A regional-scale data base, consisting of wind and temperature data for June and July of 1977, was developed for the greater San Francisco Bay Area and eastward to the Central Valley. Continuous meteorological measurements were made in the area of a windy pass (Patterson Pass) 3 km east of Lawrence Livermore Laboratory. This area was chosen because of its complex terrain and importance as a downwind topographic feature affecting the dispersal of possible accidental atmospheric releases from the… more
Date: March 5, 1979
Creator: Porch, W. M.; Volker, P. A.; Peterson, K. R.; Weichel, R. L. & Sherman, C.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen