Weak interaction effects in e/sup +/e/sup -/ annihilation with polarised beams (open access)

Weak interaction effects in e/sup +/e/sup -/ annihilation with polarised beams

Although the standard gauge model of weak and electromagnetic interactions based on the work of Salam and Weinberg has met with great success, there are experimental facts that will require its extension or its modification to a new gauge model; the discovery of a heavy lepton at SLAC and the absence of parity violation in atoms that is expected from the neutral weak current coupling to electrons are discussed. Three tests are proposed that bear on these questions. First, heavy lepton production in e/sup +/e/sup -/ annihilation when one of the incident beams is longitudinally polarized is considered and the purely leptonic decay of this heavy lepton is examined. An asymmetry in the inclusive angular distribution of one charged lepton (electron or muon) is important in determining the structure of weak interactions of the heavy lepton. In fact, this angular asymmetry easily distinguishes between the cases V - A and V + A for the heavy lepton current. Then, the decay channel L ..-->.. ..nu../sub L/ + one hadron is considered (L = heavy lepton) under the same experimental set-up and the inclusive one-hadron angular distribution examined. Parity nonconservation in the decay of the heavy lepton causes a conspicuous forward-backward …
Date: November 2, 1977
Creator: Simard, R.
Object Type: Report
System: The UNT Digital Library
Tomography of laser fusion plasmas (open access)

Tomography of laser fusion plasmas

Experimental programs exist in a number of laboratories throughout the world to test the feasibility of using powerful laser systems to drive the implosion of hydrogen isotope fuel to thermonuclear burn conditions. In a typical experiment multiple laser beams are focused onto a glass microshell (typically 50 ..mu..m to 200 ..mu..m diameter) filled with an equimolar D-T gas mixture. X-ray and particle emissions from the target provide important information about the hydrodynamic implosion of the glass shell and the associated compression and heating of the D-T fuel. Standard diagnostics for imaging such emissions are the grazing incidence reflection (GIR) x-ray microscope and the pinhole camera. Recently, a particular coded imaging technique, Zone Plate Coded Imaging (ZPCI), has been successfully used for x-ray and particle microscopy of laser fusion plasmas. ZPCI is highly attractive for investigating laser produced plasmas because it possesses a tomographic capability not shared by either the GIR or pinhole imaging techniques. This presentation provides a brief discussion of the tomographic potential of ZPCI. In addition, the first tomographic x-ray images (tomographic resolution approximately 74 ..mu..m) of a laser produced plasma are presented.
Date: August 2, 1977
Creator: Ceglio, N.M.
Object Type: Article
System: The UNT Digital Library
Kilowatt Isotope Power System: test procedure for the ground demonstration system. 77-KIPS-63 (open access)

Kilowatt Isotope Power System: test procedure for the ground demonstration system. 77-KIPS-63

This test procedure provides a detailed description of the verification methods which shall be used during development, performance and endurance testing to be conducted on the Kilowatt Isotope Power System (KIPS) Development Ground Demonstration Systems, P/N's 722487 and 723829 and Ground Demonstration System (GDS), P/N 725100. The objectives of this testing are to demonstrate system performance in a controlled environment; to verify results of performance predictions; to verify results compiled by component testing performed per Sundstrand Test Procedures and Test Specifications; and to isolate full scale operational characteristics for evaluation.
Date: December 2, 1977
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Development of an electric fuel nozzle system for combustors. Progress report, June 1, 1976--February 28, 1977 (open access)

Development of an electric fuel nozzle system for combustors. Progress report, June 1, 1976--February 28, 1977

The investigation that Northern Research and Engineering Corporation is conducting for the U.S. Energy Research and Development Administration involves developing a fuel injection approach which utilizes electrostatic effects to improve the uniformity of the fuel/air mixture in combustion systems. The three phases of the program consist of an initial feasibility study which includes design and cold-flow testing of several nozzles, preliminary combustion testing, and final testing in an actual combustor. During the time period covered by the progress report, given parametric design calculations estimating the anticipated effect of fuel charging were completed. In addition, the experimental rig to be used in the cold-flow tests was designed and assembled. The nozzle/electrode configurations to be tested were designed and are currently in the process of being fabricated.
Date: March 2, 1977
Creator: Demetri, E.P.
Object Type: Report
System: The UNT Digital Library
Diagnostics developments and applications for laser fusion experiments (open access)

Diagnostics developments and applications for laser fusion experiments

Some diagnostics techniques applied to current laser fusion target experiments are reviewed. Specifically, holographic interferometry of target plasmas, coded aperture imaging of thermonuclear alpha-particles and neutron energy spectrum measurements are discussed.
Date: September 2, 1977
Creator: Coleman, L.W.
Object Type: Article
System: The UNT Digital Library
Growth of Second Phase Particles in a Copper--Beryllium Alloy. Final Technical Report (open access)

Growth of Second Phase Particles in a Copper--Beryllium Alloy. Final Technical Report

Growth of second phase particles from a solid solution of copper-beryllium was studied to determine this alloy's suitability for acoustic emission testing. Optical and Scanning Electron microscopes were used to study the microstructure. Micro and macro hardness tests were also performed. A hardness curve for aging at 550/sup 0/F was determined. Microscopic examination revealed the presence of large inclusions which make this alloy unsuitable for the acoustic tests envisioned.
Date: June 2, 1977
Creator: Bunch, R.; Wells, R. & Mukherjee, A. K.
Object Type: Report
System: The UNT Digital Library
Heat transfer analysis of the high-level waste canister (open access)

Heat transfer analysis of the high-level waste canister

This report documents the results of a preliminary, two-month study to determine the design constraints imposed by heat transfer considerations on canisters containing solidified, high-level nuclear waste. The waste is derived from the reprocessing of light water reactor fuel for uranium recycle at 160 days after reactor discharge. The study was conducted for Rockwell Hanford Operations in support of their high-level Waste Canister Envelope study. Candidate solidified waste forms considered in this study are in-can melted borosilicate glass and stabilized calcine. Each canister is assumed to be ten feet long, filled with waste to a height of eight feet, and fabricated of 304L stainless steel. Air- and water-cooled interim storage of the canister at the Fuels Reprocessing Plant (FRP) are considered prior to ultimate storage in deep geologic media at Federal repositories. Candidate repository media are salt, shale and basalt. Canister design constraints arise because of the need to maintain the waste forms, canisters, and geologic media below certain critical temperatures. Design constraints, in terms of the maximum allowable canister diameter and heat load, are presented for interim storage at the FRP and for ultimate storage at the repositories. For interim storage, these constraints are presented parametrically in terms of: …
Date: November 2, 1977
Creator: Bell, J. M.; Nienberg, J. W.; Seidman, M. H. & Fink, L. C.
Object Type: Report
System: The UNT Digital Library
Energy use in the marine transportation industry. Task II. Efficiency improvements. Draft report (open access)

Energy use in the marine transportation industry. Task II. Efficiency improvements. Draft report

Research and development areas that hold promise for maritime energy conservation are identified and evaluated. The methodology used in the evaluation of potential research areas and results, conclusions, and recommendations are presented. Fifteen programs are identified in four generic technologies and these are discussed in detail in appendices A-D. The areas are: main propulsion plants, propulsors, hydrodynamics, and vessel operations. Fuels are discussed briefly in appendix E. Additional information is presented on the generic US flag baseline operational and cost parameters; a sample output model is presented. (MCW)
Date: June 2, 1977
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Energy study of ship-transportation systems: a progress briefing by Booz, Allen Transportation Consulting Division (open access)

Energy study of ship-transportation systems: a progress briefing by Booz, Allen Transportation Consulting Division

The study objectives are presented. Summary information on energy consumed and required in the marine transportation sector are included. Model outputs, a logic flowchart, information on a cost analysis approach, and fuel consumption and life-cycle cost methodologies are presented. Information is given on Task II (Potential Case Studies) and on Task III (Conservation Research and Development). Additional information on bottom-cycle applications and fuel consumption of diesel engines is given. (MCW)
Date: February 2, 1977
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Conceptual design criteria for facilities for geologic disposal of radioactive wastes in salt formations. Addendum No. 1 (open access)

Conceptual design criteria for facilities for geologic disposal of radioactive wastes in salt formations. Addendum No. 1

Errata to the original report are tabulated. Generalized descriptions are given of a salt dome province and a representative salt dome within the province and of a bedded salt basin. (JSR)
Date: March 2, 1977
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Computer code for calculating personnel doses due to tritium exposures (open access)

Computer code for calculating personnel doses due to tritium exposures

This report describes a computer code written in LLL modified Fortran IV that can be used on a CDC 7600 for calculating personnel doses due to exposures to tritium. The critical organ is body water. The code is capable of handling various exposure situations, and is also capable of detecting a large variety of data input errors that would lead to errors in the dose assessment.
Date: February 2, 1977
Creator: Graham, C. L. & Parlagreco, J. R.
Object Type: Report
System: The UNT Digital Library
Electron energy and space charge calculations in reflex diodes (open access)

Electron energy and space charge calculations in reflex diodes

Previously reported Monte Carlo code calculations of the electron energy distributions and the consequent reflex triode characteristics will be presented for two different anode designs. In addition, a generalized formulation of Poisson's equation will be used to examine the virtual cathode side of a reflex diode. The familiar ''resonance'' solution for the reflex triode is again found, but with a different physical interpretation. In the former case the current diverges, but in the virtual cathode space the linear dimension diverges as one approaches the ''resonance.''
Date: May 2, 1977
Creator: Shearer, J. W.
Object Type: Article
System: The UNT Digital Library
Elementary rate constants for hydrogen atoms. Final report, 1974--1975 (open access)

Elementary rate constants for hydrogen atoms. Final report, 1974--1975

Personnel, facilities, manuscripts submitted for publication, and manuscripts in preparation are given. No data are provided. (LK)
Date: January 2, 1977
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Evaluation of the solar building, Albuquerque, NM. Annual progress report, March 31, 1976--April 30, 1977 (open access)

Evaluation of the solar building, Albuquerque, NM. Annual progress report, March 31, 1976--April 30, 1977

Data validation procedures and correlations are detailed as well as system performance results. The latter includes solar collection, heat pump performance, tank temperature stratification, building infiltration and system heating output/building energy requirements. The procedure to computer model the Solar Building and correlate the model with field collected data is described.
Date: May 2, 1977
Creator: Gilman, S. F.
Object Type: Report
System: The UNT Digital Library
Mica fission detectors (open access)

Mica fission detectors

The present development status of the mica fission detectors is summarized. It is concluded that the techniques have been refined and developed to a state such that the mica fission counters are a reliable and reproducible detector for fission events.
Date: June 2, 1977
Creator: Wong, C.; Anderson, J. D.; Hansen, L.; Lehn, A. V. & Williamson, M. A.
Object Type: Report
System: The UNT Digital Library
Challenge in Numerical Software for Microcomputers (open access)

Challenge in Numerical Software for Microcomputers

Microcomputers are now capable of serious numerical computation using programmed floating-point arithmetic and Basic compilers. Unless numerical software designers for these machines exploit experience gained in providing software for larger machines, history will repeat with the initial spread of treacherous software. This paper discusses good software, especially for the elementary functions, in terms of reliability and robustness. The emphasis. is on insight rather than detailed algorithms, to show why certain things are important and how they may be achieved.
Date: September 2, 1977
Creator: Cody, W J
Object Type: Article
System: The UNT Digital Library
Annotated bibliography of safety-related occurrences in boiling-water nuclear power plants as reported in 1976 (open access)

Annotated bibliography of safety-related occurrences in boiling-water nuclear power plants as reported in 1976

This bibliography contains 100-word abstracts of reports to the U.S. Nuclear Regulatory Commission concerning operational events that occurred at boiling-water reactor nuclear power plants in 1976. The report includes 1,253 abstracts that describe incidents, failures, and design or construction deficiencies that were experienced at the facilities. They are arranged alphabetically by reactor name and then chronologically for each reactor. Key-word and permuted-title indexes are provided to facilitate location of the subjects of interest, and tables that summarize the information contained in the bibliography are provided. The information listed in the tables includes instrument failures, equipment failures, system failures, causes of failures, deficiencies noted, and the time of occurrence (i.e., during refueling, operation, testing, or construction). Three of the unique events that occurred during the year are reviewed in detail.
Date: August 2, 1977
Creator: Scott, R. L. & Gallaher, R. B.
Object Type: Report
System: The UNT Digital Library
Estimation of the solubility of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) in various solvents (open access)

Estimation of the solubility of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) in various solvents

A simple method for estimating the solubility of TATB in various solvents is presented. It is considered unlikely that a solvent will be found in which TATB is more soluble than 0.1 percent (w/v). Exceptions are the so-called superacids in which the solubility of TATB exceeds 20 percent (w/v).
Date: March 2, 1977
Creator: Selig, Walter
Object Type: Report
System: The UNT Digital Library
Proposed safety standards for ERDA trailers and other portable structures (open access)

Proposed safety standards for ERDA trailers and other portable structures

Topics discussed include body and frame design and construction requirements, planning cnsiderations, thermal protection, heating and cooling systems, plumbing, electrical systems, fire safety, industrial safety and hygiene, identification of portable structures, and testing. (TFD)
Date: May 2, 1977
Creator: Lipska, A. E. & Welton, L. G.
Object Type: Report
System: The UNT Digital Library
Alternate fuel cycle technologies, nitrate-to-oxide conversion project. Progress report, January--June 1977 (open access)

Alternate fuel cycle technologies, nitrate-to-oxide conversion project. Progress report, January--June 1977

Work is being done at the Rocky Flats Plant (RFP) under contract from the Savannah River Operations Office (SROO) of the U.S. Energy Research and Development Administration (ERDA) to critically analyze and evaluate existing technology for converting plutonium nitrate to plutonium oxide, and to recommend flow sheets and equipment for this process. Seven such processes were compared using an expanded process-comparison scheme. The results of the comparison differed somewhat from the initial comparison made in September, 1976. The direct calcination methods, headed by the screw calciner process, received the highest ratings when operating experience was considered with a small weighting factor. These methods are much simpler than the others. The oxalate precipitation methods, headed by the plutonium(IV) oxalate precipitation and calcination process, received highest ratings when operating experience was strongly considered. Thus, in the long term, the screw calciner or other direct-conversion methods should be developed. For a plant to be built in the short term, however, an oxalate precipitation method should be used since a larger amount of experience exists with these processes. The block flow diagrams, material balances, and equipment flow sheets for each of the seven processes compared are included in this report. A process-design criterion is …
Date: September 2, 1977
Creator: Lehmkuhl, G. D.
Object Type: Report
System: The UNT Digital Library
Generalized shaped charge design. Final report, October 1975--October 1976 (open access)

Generalized shaped charge design. Final report, October 1975--October 1976

A series of shaped charge devices were designed and tested. The tests showed that by combining detailed Lagrange calculations of liner collapse with simplified incompressible flow models, the explosive and liner contours of the charge can be tailored to yield either constant velocity jets, stretching jets, or converging jets. Measured liner velocity was within 10 percent of theory, except for details near the apex and close to slide planes. It was found that the effects of liner convergence and viscosity had to be included in the incompressible flow models to accurately correlate liner velocity, collapse angles, and jet velocity.
Date: February 2, 1977
Creator: Van Thiel, M.; Godfrey, C. S. & Wilkins, M. L.
Object Type: Report
System: The UNT Digital Library
Recent studies concerning plasma buildup in a mirror fusion engineering research facility (FERF) (open access)

Recent studies concerning plasma buildup in a mirror fusion engineering research facility (FERF)

Use of a finite Larmor radius buildup code has resulted in revised predictions for the fusion engineering research facility (FERF) plasma. Because of charge-exchange erosion of the plasma surface, the radial density profile is found to be quite flat, in contrast to a previously predicted cubic profile. At a given value of n tau, the required beam current and the fusion neutron flux are significantly larger than previously predicted.
Date: May 2, 1977
Creator: Campbell, M.
Object Type: Report
System: The UNT Digital Library
Twenty seven shallow thermal gradient holes: Temperature and lithology (open access)

Twenty seven shallow thermal gradient holes: Temperature and lithology

None
Date: November 2, 1977
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Energy use in the marine transportation industry. Task III. Efficiency improvements. Draft report (open access)

Energy use in the marine transportation industry. Task III. Efficiency improvements. Draft report

Research and development areas that hold promise for maritime energy conservation are identified and evaluated. The methodology used is discussed in Chapter II. The technology base of the commercial marine transportation industry relating to energy usage is made up of: main propulsion plants, propulsors, hydrodynamics, vessel operations, and fuels. Fifteen specific program areas in the first four generic technologies are identified and are evaluated. An economic and energy impact analysis and technological risk assessment was performed on the specific program areas and the results are summarized in Chapter III. The first five appendices address the generic technologies. The sixth appendix contains the baseline operating and cost parameters against which the 15 program areas were evaluated, and the last appendix contains sample printouts of the MTEM model used to evaluate the energy consumption and economic impacts associated with the candidate technology areas. (MCW)
Date: June 2, 1977
Creator: unknown
Object Type: Report
System: The UNT Digital Library