Search Results

open access

Advanced Gas Cooled Nuclear Reactor Materials Evaluation and Development Program. Progress report, January 1, 1980-March 31, 1980

Description: Results are presented of work performed on the Advanced Gas-Cooled Nuclear Reactor Materials Evaluation and Development Program. The objectives of this program are to evaluate candidate alloys for Very High Temperature Reactor (VHTR) Nuclear Process Heat (NPH) and Direct Cycle Helium Turbine (DCHT) applications, in terms of the effect of simulated reactor primary coolant (helium containing small amounts of various other gases), high temperatures, and long time exposures, on the mechanical prope… more
Date: June 25, 1980
Partner: UNT Libraries Government Documents Department
open access

Assessment of the potential of colloidal fuels in future energy usage. Final report. [97 references]

Description: Pulverized coal has been an increasing important source of energy over the past century. Most large utility boilers, all modern coking plants, and many industrial boilers and blast furnaces employ pulverized coal as a major feed stream. In periods of oil shortages, such as during World Wars I and II, the concept of adding powdered coal to oil for use in combustion equipment originally designed for oil has been actively pursued but rarely used. Over this same period of time, there have been atte… more
Date: February 25, 1980
Partner: UNT Libraries Government Documents Department
open access

Fire protection countermeasures for containment ventilation systems

Description: The goal of this project is to find countermeasures to protect High Efficiency Particulate Air (HEPA) filters, in exit ventilation ducts, from the heat and smoke generated by fire. Initially, methods were developed to cool fire-heated air by fine water spray upstream of the filters. It was recognized that smoke aerosol exposure to HEPA filters could also cause disruption of the containment system. Through testing and analysis, several methods to partially mitigate the smoke exposure to the HEPA… more
Date: August 25, 1980
Creator: Alvares, N.; Beason, D.; Bergman, V.; Creighton, J.; Ford, H. & Lipska, A.
Partner: UNT Libraries Government Documents Department
open access

Pilot plant processing of sodium bifluoride to sodium fluoride pellets

Description: Sodium fluoride (NaF) traps in the PGDP purge cascade presently use NaF pellets to remove residual UF{sub 6} from the gas stream. These pellets are procured from ORGDP which converts sodium bifluoride pellets to NaF by thermal decomposition. Discussions of the possibility of no longer producing pellets at ORGDP, due to oven corrosion problems, led to a pilot plant test at PGDP. This test was designed to examine the feasibility of producing the NaF pellets at PGDP in the event that an alternativ… more
Date: January 25, 1985
Creator: Leone, S. M.
Partner: UNT Libraries Government Documents Department
open access

Capacity-expansion planning under uncertainty in the electric-utility industry

Description: This document basically represents a comparison between theory and practice of capacity-expansion planning in the electric-utility industry. The purpose of the comparison is to provide avenues for further exploration in utility decision making. The focus of the Phase II study is upon the role of uncertainty in the decision-making process. The Phase I effort was directed at modeling the Averch-Johnson theory of the regulated utility. Part I of this report reviews the Anderson study (D. Anderson,… more
Date: July 25, 1980
Creator: Soyster, A.L.
Partner: UNT Libraries Government Documents Department
open access

Informal Technical Progress Report and Budget for Incremental Funding

Description: The principal activities during the last year were related to LAMPF experiments, a newly initiated radiochemical search for Glashow particles, and the writing up of experimental work completed at FERMILAB studying the interaction of 400-MeV protons and 150-MeV pions with complex nuclei. Collaboration is proceeding with Los Alamos on heavy methanes as atmospheric tracers and in proposing a geological search for enhanced solar neutrinos in past geological times.
Date: March 25, 1982
Creator: Turkevich, A.
Partner: UNT Libraries Government Documents Department
open access

GAMIDEN: a program to aid in the identification of unknown materials by gamma-ray spectroscopy

Description: The intent of the computer code GAMIDEN is to help identify isotopes by their gamma-ray emissions and thus to assist in the nondestructive assay of unknown materials. From both radioactive decays and neutron captures, GAMIDEN searches GAMTOT78, a file of gamma-ray spectra, for matches with observed photon energies. This report describes the search procedure, outlines the use of the code, and gives an example. The code is designed to operate on the CRAY 1 computer at Lawrence Livermore National … more
Date: June 25, 1982
Creator: Howerton, Robert J.
Partner: UNT Libraries Government Documents Department
open access

Results of TMX operations: January-July 1980

Description: This interim report summarizes results from the Tandem Mirror Experiment (TMX) during the period January to July 1980 and describes the physics experiments, the machine operation, and the diagnostics that were added to TMX during this period. This operating period followed the initial proof-of-principle TMX experiments and predated the ongoing final experiments preceding TMX shutdown for modification to TMX Upgrade. The results described in this report include measurements of plasma parameters … more
Date: September 25, 1980
Creator: Correll, D.L. & Drake, R.P. (eds.)
Partner: UNT Libraries Government Documents Department
open access

Evaluation of cracking in feedwater piping adjacent to the steam generators in Nine Pressurized Water Reactor Plants

Description: Cracking in ASTM A106-B and A106-C feedwater piping was detected near the inlet to the steam generators in a number of pressurized water reactor plants. We received sections with cracks from nine of the plants with the objective of identifying the cracking mechanism and assessing various factors that might contribute to this cracking. Variations were observed in piping surface irregularities, corrosion-product, pit, and crack morphology, surface elmental and crystal structure analyses, and stee… more
Date: June 25, 1980
Creator: Goldberg, A.; Streit, R. D. & Scott, R. G.
Partner: UNT Libraries Government Documents Department
open access

Quadric solids and computational geometry

Description: As part of the CAD-CAM development project, this report discusses the mathematics underlying the program QUADRIC, which does computations on objects modeled as Boolean combinations of quadric half-spaces. Topics considered include projective space, quadric surfaces, polars, affine transformations, the construction of solids, shaded image, the inertia tensor, moments, volume, surface integrals, Monte Carlo integration, and stratified sampling. 1 figure.
Date: July 25, 1980
Creator: Emery, J.D.
Partner: UNT Libraries Government Documents Department
open access

Final report for the Chautauqua Radio Workshop Project. July 1, 1980-October 30, 1981

Description: Energy conservation education must reach millions of Americans in order to see any real and immediate decrease in energy consumption. Since our society gets much of its information from the media, this seems like a most effective vehicle for disseminating energy conservation information to the American Public. Radio is listened to by the vast majority of Americans each day of their lives. Radio as a communications medium is an extremely cost effective method of mass communication and education,… more
Date: January 25, 1982
Creator: Renz, B.
Partner: UNT Libraries Government Documents Department
open access

An Asdex-type divertor for ITER

Description: An Asdex-type local divertor is proposed for ITER consisting of a copper poloidal field coil adjacent to the plasma. Estimates indicate that the power consumption is acceptable. Advantages would be a much reduced heat load not very sensitive to magnetic perturbations. A disadvantage is the finite lifetime under neutron bombardment that would require periodic replacement of the divertor coils in a reactor, but probably not in ITER because of its limited fluence. Another disadvantage would be poo… more
Date: September 25, 1989
Creator: Fowler, T.K.
Partner: UNT Libraries Government Documents Department
open access

Field-independent normalization of SSC Collider Ring costs

Description: The SSC Collider Ring represents the dominating cost element of the SSC project. The number of variables involved in optimizing the facility is very large so it is helpful to try to parameterize them in a way that allows a straightforward comparison of primary options. Cost information has been drawn from the Reference Designs Study supplemented by data from studies carried out by the Harza Engineering Company in Illinois. Various studies indicate that a 9' to 10' tunnel seems optimal from a co… more
Date: March 25, 1985
Creator: Toohig, T.E.
Partner: UNT Libraries Government Documents Department
open access

Study of the potential uses of the Barnwell Nuclear Fuel Plant (BNFP). Final report

Description: The purpose of this study is to provide an evaluation of possible international and domestic uses for the Barnwell Nuclear Fuel Plant, located in South Carolina, at the conclusion of the International Nuclear Fuel Cycle Evaluation. Four generic categories of use options for the Barnwell plant have been considered: storage of spent LWR fuel; reprocessing of LWR spent fuel; safeguards development and training; and non-use. Chapters are devoted to institutional options and integrated institutional… more
Date: March 25, 1980
Partner: UNT Libraries Government Documents Department
open access

Development of software for computer assisted model simplification. Final report. [Lagrange multipliers]

Description: The final report of DBS Corporation on the model simplification project is presented. The purpose of the project is to develop computer-assisted model simplification. The contributions of DBS to this project where an initial overall project assessment, contributions to design principles and testing procedures, specific experimental designs, and initial test results. The main contributions of DBS to this project were in the area of LP matrix scaling, and particularly in the potential usefulness … more
Date: April 25, 1980
Partner: UNT Libraries Government Documents Department
open access

Measured resolutions of the Arc and Linac BPM systems

Description: The 6'' long final focus beam position monitors (short FF BPM's are longer, thus deliver more signal after a 15 nanosecond filter, than either the Linac or Arc monitors. The purpose of this note is to compare the resolution of the Arc vs Linac electronics when applied to a short FF 2'' diameter BPM. A method of calibrating the Arc modules is also tested and briefly discussed. The range of each DAC setting to minimize digitization error is also calculated.
Date: August 25, 1986
Creator: Pappas, D. & Tentindo, S.
Partner: UNT Libraries Government Documents Department
open access

Environmental monitoring at the Lawrence Livermore Laboratory. 1979 annual report

Description: Information on monitoring activities is reported in two sections for EDB/ERA/INIS. The first section covers all information reported except Appendix D, which gives details of sampling and analytical procedures for environmental monitoring used at Lawrence Livermore Laboratory. A separate abstract was prepared for Appendix D. (JGB)
Date: April 25, 1980
Creator: Silver, W. J.; Lindeken, C. L.; White, J. H. & Buddemeir, R. W.
Partner: UNT Libraries Government Documents Department
open access

Network architecture functional description and design

Description: This report provides a top level functional description and design for the development and implementation of the central network to support the next generation of SNL, Albuquerque supercomputer in a UNIX{reg sign} environment. It describes the network functions and provides an architecture and topology.
Date: May 25, 1989
Creator: Stans, L.; Bencoe, M.; Brown, D.; Kelly, S.; Pierson, L. & Schaldach, C.
Partner: UNT Libraries Government Documents Department
open access

AFR/design and licensing information/BNFP as a model. Technical progress report, January-March 1980

Description: Work on this project is focused on developing design and licensing information for the model facility. Three major subcontracts have been approved by DOE and the design effort is progressing satisfactorily on the security system, rack design, and the soils structural and seismic design which these contracts cover. Licensing activities are progressing satisfactorily. About 50% of the Environmental Report is drafted and issued for preliminary review. Approximately 15% of the Safety Analysis Repor… more
Date: April 25, 1980
Partner: UNT Libraries Government Documents Department
open access

Finite element stress analysis of D0 test beam transporter mainframe assembly

Description: The D0 test beam transporter mainframe assembly is a structural frame lying in a horizontal plane and designed to support and orient the D0 test liquid argon calorimeter properly in the test beam. Azimuthal adjustment is provided by a turntable with a mean radius of 64 inches, supported on a pressurized oil bearing. Angular positioning is achieved by an hydraulic actuator attached to the turntable which places force against an arm on the calorimeter vessel, causing it to rotate. Vertical positi… more
Date: September 25, 1987
Creator: Wands, B.
Partner: UNT Libraries Government Documents Department
open access

Change in dispersion function from field-gradient errors

Description: We consider changes in the momentum dispersion function induced by field gradient errors of quadrupole magnets located around a ring.
Date: April 25, 1983
Creator: Ohnuma, S. & Takayama, K.
Partner: UNT Libraries Government Documents Department
open access

Potential of high-average-power solid state lasers

Description: We discuss the possibility of extending solid state laser technology to high average power and of improving the efficiency of such lasers sufficiently to make them reasonable candidates for a number of demanding applications. A variety of new design concepts, materials, and techniques have emerged over the past decade that, collectively, suggest that the traditional technical limitations on power (a few hundred watts or less) and efficiency (less than 1%) can be removed. The core idea is config… more
Date: September 25, 1984
Creator: Emmett, J. L.; Krupke, W. F. & Sooy, W. R.
Partner: UNT Libraries Government Documents Department
open access

Nitrogen oxide abatement by distributed fuel addition

Description: The performance of the new combustor was tested. Experiments showed that this combustor has superior insulating quality than the previous one. Measured radial concentrations indicated uniform distribution of the primary fuel (coal) inside the fire tube resulting in reasonably flat concentration profiles. However, measured radial concentrations after the addition of the reburn fuel showed uneven distribution of the fuel resulting in parabolic concentration profiles, an indication of insufficient… more
Date: August 25, 1989
Creator: Wendt, J. O. L. & Mereb, J. B.
Partner: UNT Libraries Government Documents Department
open access

Survey of initial experiments on ATA beam dynamics

Description: The Advanced Test Accelerator (ATA) is a linear induction electron accelerator whose design parameters are 50 MeV, 10 kA and 70 ns pulse duration. The key physics issues affecting performance of the accelerator involve beam dynamics during transport through the accelerator structure. In this report, we present experimental results describing the initial operating phases of ATA. These results illustrate the complexity of the beam transport phenomena but also indicate the means to stabilize beam … more
Date: June 25, 1984
Creator: Prono, D. S.; Caporaso, G. J.; Chong, Y. P.; Fessenden, T. J.; Hester, R. E.; Lauer, E. J. et al.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen