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Planning for the next generation of standard electronics

Description: Recommendations of a committee for a new standard to meet needs of new high-energy physics experiments are summarized in a nontechnical manner. Existing standards, including CAMAC, were examined; it was felt that none would meet the future needs of high-energy physics. The original committee gave its recommendations and disbanded. The design committee has begun its work; it anticipates finishing in about two years, in time for application of its recommendations to ISABELLE. (RWR)
Date: September 9, 1977
Creator: Leipuner, L.
Partner: UNT Libraries Government Documents Department
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Hybrid reactors. [Fuel cycle]

Description: The rationale for hybrid fusion-fission reactors is the production of fissile fuel for fission reactors. A new class of reactor, the fission-suppressed hybrid promises unusually good safety features as well as the ability to support 25 light-water reactors of the same nuclear power rating, or even more high-conversion-ratio reactors such as the heavy-water type. One 4000-MW nuclear hybrid can produce 7200 kg of /sup 233/U per year. To obtain good economics, injector efficiency times plasma gain… more
Date: September 9, 1980
Creator: Moir, Ralph W.
Partner: UNT Libraries Government Documents Department
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Science and art in heavy-ion collisions

Description: One of the more intriguing phenomena discovered in heavy-ion physics is the seeming appearance of high energy structure in the excitation spectra of inelastically scattered heavy ions. For reasons illustrated, these may well be a phenomena unique to heavy ions and their explanation perhaps unique to TDHF.
Date: August 9, 1982
Creator: Weiss, M.S.
Partner: UNT Libraries Government Documents Department
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Charged particle fusion targets. [Energy requirements for inertial confinement fusion]

Description: The power, voltage, energy and other requirements of electron and ion beam fusion targets are reviewed. Single shell, multiple shell and magnetically insulated target designs are discussed. Questions of stability are also considered. In particular, it is shown that ion beam targets are stabilized by an energy spread in the ion beam.
Date: November 9, 1977
Creator: Bangerter, R.O. & Meeker, D.J.
Partner: UNT Libraries Government Documents Department
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Cladding creepdown under compression. [BWR; PWR]

Description: Light-water power reactors use Zircaloy tubing as cladding to contain the UO/sub 2/ fuel pellets. In-service operating conditions impose an external hydrostatic force on the cladding, causing it to creep down into eventual contact with the fuel. Knowledge of the rate of such creepdown is of great importance to modelers of fuel element performance. An experimental system was devised for studying creepdown that meets several severe requirements by providing (1) correct stress state, (2) multiple … more
Date: November 9, 1977
Creator: Hobson, D.O.
Partner: UNT Libraries Government Documents Department
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Startup of reversed-field mirror reactors using coaxial plasma guns

Description: Preliminary calculations are given that indicate that a coaxial plasma gun might scale reasonably to reactor-grade operating conditions. Ongoing experiments and numerical simulations should shed some light on the validity of the described scaling laws.
Date: November 9, 1979
Creator: Smith, A. C., Jr.; Hartman, C. W.; Carlson, G. A.; Neef, W. S., Jr. & Eddleman, J. L.
Partner: UNT Libraries Government Documents Department
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Analytical methods of electrode design for a relativistic electron gun

Description: The standard paraxial ray equation method for the design of electrodes for an electrostatically focused gun is extended to include relativistic effects and the effects of the beam's azimuthal magnetic field. Solutions for parallel and converging beams are obtained and the predicted currents are compared against those measured on the High Brightness Test Stand. 4 refs., 2 figs.
Date: May 9, 1985
Creator: Caporaso, G.J.; Cole, A.G. & Boyd, J.K.
Partner: UNT Libraries Government Documents Department
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Magnetic interactions in sup 119 Sn substituted for Cu in antiferromagnetic and superconducting lamellar cuprates

Description: Moessbauer Spectroscopy (MS) studies of {sup 119}Sn were carried out in antiferromagnetic La{sub 2}(Cu{sub 0.99}Sn{sub 0.01})O{sub 4} (214) and in superconducting GdBa{sub 2}(Cu{sub 0.99}Sn{sub 0. 01}){sub 3}O{sub 7} (123). Non-magnetic Sn{sup 4+} substitutes for Cu if the right procedure for diffusing {sup 119}SnO{sub 2} in CuO is carried out. Studies performed in 214 show a large quadrupole splitting (QS) down to 120 K followed by an onset of a magnetic interaction reaching a saturation inter… more
Date: November 9, 1989
Creator: Pasternak, M. & Taylor, R. D.
Partner: UNT Libraries Government Documents Department
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Magnetron co-sputtering system for coating ICF targets

Description: Fabrication of Inertial Confinement Fusion (ICF) targets requires deposition of various types of coatings on microspheres. The mechanical strength, and surface finish of the coatings are of concern in ICF experiments. The tensile strength of coatings can be controlled through grain refinement, selective doping and alloy formation. We have constructed a magnetron co-sputtering system to produce variable density profile coatings with high tensile strength on microspheres. The preliminary data on … more
Date: December 9, 1981
Creator: Hsieh, E. J.; Meyer, S. F.; Halsey, W. G.; Jameson, G. T. & Wittmayer, F. J.
Partner: UNT Libraries Government Documents Department
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Progress in direct heat applications projects

Description: The development of hydrothermal energy for direct heat applications is being aided by twenty-two demonstration projects that are funded on a cost-sharing basis by the US Department of Energy, Division of Geothermal Energy. These projects are designed to demonstrate the technical and economic feasibility of the direct use of geothermal heat in the United States. Twelve of these projects are administered by the DOE-Idaho Operations Office with technical support from EG and G Idaho, Inc. Engineeri… more
Date: September 9, 1980
Creator: Childs, F. W.; Jones, K. W.; Nelson, L. B.; Strawn, J. A. & Tucker, M. K.
Partner: UNT Libraries Government Documents Department
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Mild coal gasification: Product separation, pilot-unit support, twin screw heat transfer, and H sub 2 S evolution

Description: Our general objective is to further the development of efficient continuous mild coal gasification processes. Our efforts this year have been in four main areas. A new thrust has been to identify and develop efficient processes to separate the vapor product stream into particulate-free liquid and mist-free gas. We continued work aimed at predicting heat transfer rates (hence throughput) in externally-heated twin-screw pyrolyzers. We sought to provide technical support for the design, installati… more
Date: August 9, 1991
Creator: Camp, D. W.; Wallman, P. H. & Coburn, T. T.
Partner: UNT Libraries Government Documents Department
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Maintaining ideal body weight counseling sessions

Description: The purpose of this program is to provide employees with the motivation, knowledge and skills necessary to maintain ideal body weight throughout life. The target audience for this program, which is conducted in an industrial setting, is the employee 40 years of age or younger who is at or near his/her ideal body weight.
Date: October 9, 1980
Creator: Brammer, S. H.
Partner: UNT Libraries Government Documents Department
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Relationship between the DOE loan guaranty and California Environmental Quality Act environmental review processes

Description: The US Department of Energy (DOE) is involved in numerous geothermal research, development, demonstration, and loan guaranty projects in the State of California. These projects often require the preparation of both an Environmental Impact Report (EIR), as required by California Environmental Quality Act (CEQA), and an Environmental Assessment (EA) or Impact Statement (EIS) as required under NEPA. DOE adoption or utilization of information contained in EIR's to meet that agency's NEPA requiremen… more
Date: September 9, 1980
Creator: Mezga, L. J. & Brechbill, R. A.
Partner: UNT Libraries Government Documents Department
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Recent US target-physics-related research in heavy-ion inertial fusion: target gains and constraints on accelerator design

Description: Inertial-fusion targets were designed for use with heavy-ion accelerators as drivers in fusion energy power plants. In the interest of providing inputs for understanding the trade-offs among accelerator designs, an initial survey was carried out regarding target gain versus parameters of relevance. This was done in two stages, firstly target gain was related to the beam energy, power, focal radius, and ion range. Secondly, a more comprehensive discussion was made by posing target gain constrain… more
Date: March 9, 1982
Creator: Mark, J.W.K.
Partner: UNT Libraries Government Documents Department
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Reverse trade mission on the drilling and completion of geothermal wells

Description: This draft report was prepared as required by Task No. 2 of the US Department of Energy, Grant No. DE-FG07-89ID12850 Reverse Trade Mission to Acquaint International Representatives with US Power Plant and Drilling Technology'' (mission). As described in the grant proposal, this report covers the reactions of attendees toward US technology, its possible use in their countries, and an evaluation of the mission by the staff leaders. Note this is the draft report of one of two missions carried out … more
Date: September 9, 1989
Partner: UNT Libraries Government Documents Department
open access

Evolution of the tandem mirror reactor concept

Description: We discuss the evolution of the tandem mirror reactor concept from the original conceptual reactor design (1977) through the first application of the thermal barrier concept to a reactor design (1979) to the beginning of the Mirror Advanced Reactor Study (1982).
Date: March 9, 1982
Creator: Carlson, G. A. & Logan, B. G.
Partner: UNT Libraries Government Documents Department
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Numerical simulation of an accelerator injector

Description: Accelerator injector designs have been evaluated using two computer codes. The first code self consistently follows relativistic particles in two dimensions. Fields are obtained in the Darwin model which includes inductive effects. This code is used to study cathode emission and acceleration to full injector voltage. The second code transports a fixed segment of a beam along the remainder of the beam line. Using these two codes the effects of electrode configuration on emittance, beam quality a… more
Date: May 9, 1985
Creator: Boyd, J.K.; Caporaso, G.J. & Cole, A.G.
Partner: UNT Libraries Government Documents Department

Comments Regarding "Density, Speed of Sound, Refractive Index and Derivatives Properties of the Binary Mixture N-Hexane + N-Heptane (or N-Octane or N-Nonane), T = 288.15 - 313.15 K"

Description: This article offers comment on "Density, speed of sound, refractive index and derivatives properties of the binary mixture N-Hexane + N-Heptane (or N-Octane or N-Nonane), T=288.15 - 313.15 K."
Date: April 9, 2013
Creator: Acree, William E. (William Eugene) & Stephens, Timothy W.
Partner: UNT College of Arts and Sciences
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High gain free electron laser at ETA

Description: A single pass, tapered electron wiggler and associated beam transport has been constructed at the Experimental Test Accelerator (ETA) at Lawrence Livermore National Laboratory (LLNL). The system is designed to transport 1 kA of 4.5 MeV electrons with an emittance of 30 millirad-cm. The planar wiggler is provided by a pulsed electromagnet. The interaction region is an oversized rectangular waveguide. Quadrupole fields stabilize the beam in the plane parallel to the wiggler field. The 3 meter lon… more
Date: February 9, 1983
Creator: Orzechowski, T.J.; Prosnitz, D.; Halbach, K.; Kuenning, R.; Paul, A.; Hopkins, D. et al.
Partner: UNT Libraries Government Documents Department
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High field superconducting magnets (12 T and greater) for fusion applications

Description: The technology for producing high fields in large superconducting magnets has increased greatly in recent years, but must increase still more in the future. In this paper, we examine the present state of the art vis-a-vis the needs of a next-generation fusion machine and outline a program to provide for those needs. We also highlight recent developments that suggest the program goals are within reach.
Date: July 9, 1986
Creator: Miller, J. R.; Summers, L. T. & Kerns, J. A.
Partner: UNT Libraries Government Documents Department
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The theory of heavy flavour production

Description: The theory of heavy quark production in hadronic reactions is reviewed. Rates for the production of charm, bottom and top quarks at energies of current interest are presented. 34 refs., 19 figs., 2 tabs.
Date: August 9, 1989
Creator: Ellis, R.K.
Partner: UNT Libraries Government Documents Department
open access

High-voltage test stand at Livermore

Description: This paper describes the present design and future capability of the high-voltage test stand for neutral-beam sources at Lawrence Livermore Laboratory. The stand's immediate use will be for testing the full-scale sources (120 kV, 65 A) for the Tokamak Fusion Test Reactor. It will then be used to test parts of the sustaining source system (80 kV, 85 A) being designed for the Magnetic Fusion Test Facility. Following that will be an intensive effort to develop beams of up to 200 kV at 20 A by acce… more
Date: October 9, 1977
Creator: Smith, M.E.
Partner: UNT Libraries Government Documents Department
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Brightness measurements on the Livermore high brightness test stand

Description: Several techniques using small radius collimating pipes with and without axial magnetic fields to measure the brightness of an extracted 1 - 2 kA, 1 - 1.5 MeV electron beam will be described. The output beam of the High Brightness Test Stand as measured by one of these techniques is in excess of 2 x 10/sup 5/ amp/cm/sup 2//steradian. 5 refs., 4 figs.
Date: May 9, 1985
Creator: Caporaso, G.J. & Birx, D.L.
Partner: UNT Libraries Government Documents Department
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