Office of Scientific & Technical Information Technical Reports - 26 Matching Results

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Analytic model of the radiation-dominated decay of a compact toroid

Description: The coaxial-gun, compact-torus experiments at LLNL and LASNL are believed to be radiation-dominated, in the sense that most or all of the input energy is lost by impurity radiation. This paper presents a simple analytic model of the radiation-dominated decay of a compact torus, and demonstrates that several striking features of the experiment (finite lifetime, linear current decay, insensitivity of the lifetime to density or stored magnetic energy) may also be explained by the hypothesis that i… more
Date: November 11, 1981
Creator: Auerbach, Steven P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Calorimetry end-point predictions

Description: This paper describes a portion of the work presently in progress at Rocky Flats in the field of calorimetry. In particular, calorimetry end-point predictions are outlined. The problems associated with end-point predictions and the progress made in overcoming these obstacles are discussed. The two major problems, noise and an accurate description of the heat function, are dealt with to obtain the most accurate results. Data are taken from an actual calorimeter and are processed by means of three… more
Date: April 11, 1981
Creator: Fox, M. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Clinch River Breeder Reactor Plant Steam Generator Few Tube Test model post-test examination

Description: The Steam Generator Few Tube Test (FTT) was part of an extensive testing program carried out in support of the Clinch River Breeder Reactor Plant (CRBRP) steam generator design. The testing of full-length seven-tube evaporator and three-tube superheater models of the CRBRP design was conducted to provide steady-state thermal/hydraulic performance data to full power per tube and to verify the absence of multi-year endurance problems. This paper describes the problems encountered with the mechani… more
Date: March 11, 1981
Creator: Impellezzeri, J. R.; Camaret, T. L. & Friske, W. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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EPROM-based LSI-11 for distributed instrumentation control

Description: The LLNL Nuclear Chemistry Counting Facility (NCCF) is being converted to a modern production facility. A computer network has been designed and built to implement this conversion. The outermost node of the computer network is a dedicated EPROM-based controller. The controller handles the details of driving the attached nuclear instrumentation, providing a standard interface to the remainder of the network. This paper addresses the design and the implementation of the dedicated instrumentation … more
Date: November 11, 1981
Creator: Hunt, D.N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Flywheel rotor and containment technology development

Description: The goals of the project are: to develop an economical and practical composite flywheel having an energy density of 88 Wh/kg at failure, an operational energy density of 44 to 55 Wh/kg, and an energy storage capacity of approximately 1 kWh; to determine the suitability of various manufacturing processes for low-cost rotor fabrication; to investigate flywheel and flywheel-systems dynamics; to test and evaluate prototype rotors for use in transportation and stationary applications; and to develop… more
Date: August 11, 1981
Creator: Kulkarni, S.V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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FTC data analysis. [Federal Trade Commission]

Description: Manufacturers of 5 major consumer products submitted energy efficiency and related data to the Federal Trade Commission during late 1979 and early 1980 in response to energy-efficiency labeling and representations requirements. This report documents an analysis of these data as conducted by Vitro Laboratories. Data were submitted on five products: furnaces, water heaters, room air conditioners, refrigerators and refrigerator-freezers, and freezers. The submittals include information on manufact… more
Date: February 11, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fusion-reactor aspects of the compact torus

Description: This paper summarizes several studies of fusion reactors based on the compact torus (CT). A wide variety of reactor configurations can be projected within present understanding of the possible types of CT and their macroscopic stability and confinement properties. Three types of CT are considered here, the field-reversed-configuration having B/sub Toroidal/ = 0, the Spheromak with B/sub T/ not equal to 0, and CT's formed with particle rings. For each type, either fixed or moving-ring possibilit… more
Date: March 11, 1981
Creator: Hartman, Charles W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Groove refinishing tool

Description: A groove refinishing tool is disclosed which utilizes a finishing wheel which is controlled by an air grinder motor. The air grinder motor is mounted on a main body section which is pivotally attached to a shoe element. The shoe element contains guide pins which guide the shoe element on the groove to be refinished. Application of pressure on the main body element compresses a weight counterbalance spring to extend the finishing wheel through the shoe element to refinish the groove surface. A w… more
Date: March 11, 1981
Creator: Kellogg, H.J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Laser-damage thresholds of thin-film optical coatings at 248 nm

Description: We have measured the laser-induced damage thresholds for 248 nm wavelength light of over 100 optical coatings from commercial vendors and research institutions. All samples were irradiated once per damage site with temporally multi-lobed, 20-ns pulses generated by a KrF laser. The survey included high, partial, and dichroic reflectors, anti-reflective coatings, and single layer films. The samples were supplied by ten vendors. The majority of samples tested were high reflectors and antireflectiv… more
Date: December 11, 1981
Creator: Milam, D.; Rainer, F. & Lowdermilk, W.H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Method of forming metallic coatings on polymeric substrates and of forming graded polymeric coatings or films

Description: The invention described herein relates to methods of forming graded polymeric coatings or films on a desired substrate and of forming metallic coatings on polymeric or other nonmetallic substrates. In particular, it relates to methods of forming such coatings or films by sorption and/or diffusion of metals into coatings or films of polymeric material deposited by conventional techniques on a desired substrate.
Date: March 11, 1981
Creator: Liepins, R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Mirror fusion. Quarterly report, April-June 1981

Description: The information in each Quarterly is presented in the same sequence as in the Field Work Package Proposal and Authorization System (WPAS) submissions prepared for the U.S. Department of Energy; the main sections are Applied Plasma Physics, Confinement Systems, Development and Technology, and Mirror Fusion Test Facility (Planning and Projects). On occasion, we shall include information pertaining to the LLNL role as Lead Laboratory for the Open Systems Mirror Fusion Program. Each of these sectio… more
Date: September 11, 1981
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Mirror Fusion Test Facility magnet system

Description: In 1979, R.H. Bulmer of Lawrence Livermore National Laboratory (LLNL) discussed a proposed tandem-mirror magnet system for the Mirror Fusion Test Facility (MFTF) at the 8th symposium on Engineering Problems in Fusion Research. Since then, Congress has voted funds for expanding LLNL's MFTF to a tandem-mirror facility (designated MFTF-B). The new facility, scheduled for completion by 1985, will seek to achieve two goals: (1) Energy break-even capability (Q or the ratio of fusion energy to plasma … more
Date: September 11, 1981
Creator: VanSant, J. H.; Kozman, T. A.; Bulmer, R. H. & Ng, D. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Moving to a total VM environment

Description: The Stanford Linear Accelerator Center is a single purpose laboratory operated by Stanford University for the Department of Energy. Its mission is to do research in High Energy (particle) physics. This research involves the use of large and complex electronic detectors. Each of these detectors is a multi-million dollar device. A part of each detector is a computer for process control and data logging. Most detectors at SLAC now use VAX 11/780s for this purpose. Most detectors record digital dat… more
Date: August 11, 1981
Creator: Johnston, T.Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Nitrogen fixation method and apparatus. [DOE patent application]

Description: A method and apparatus for achieving nitrogen fixation includes a volumetric electric discharge chamber. The volumetric discharge chamber provides an even distribution of an electron beam, and enables the chamber to be maintained at a controlled energy to pressure (E/p) ratio. An E/p ratio of from 5 to 15 kV/atm of O/sub 2//cm promotes the formation of vibrationally excited N/sub 2/. Atomic oxygen interacts with vibrationally excited N/sub 2/ at a much quicker rate than unexcited N/sub 2/, grea… more
Date: August 11, 1981
Creator: Chen, H. L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Nova Event Logging System

Description: Nova is a 200 terawatt, 10-beam High Energy Glass Laser currently under construction at LLNL. This facility, designed to demonstrate the feasibility of laser driven inertial confinement fusion, contains over 5000 elements requiring coordinated control, data acquisition, and analysis functions. The large amounts of data that will be generated must be maintained over the life of the facility. Often the most useful but inaccessible data is that related to time dependent events associated with, for… more
Date: May 11, 1981
Creator: Calliger, R.J. & Suski, G.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Plating on stainless steel alloys

Description: Quantitative adhesion data are presented for a variety of electroplated stainless steel type alloys. Results show that excellent adhesion can be obtained by using a Wood's nickel strike or a sulfamate nickel strike prior to final plating. Specimens plated after Wood's nickel striking failed in the deposit rather than at the interface between the substrate and the coating. Flyer plate quantitative tests showed that use of anodic treatment in sulfuric acid prior to Wood's nickel striking even fur… more
Date: September 11, 1981
Creator: Dini, J. W. & Johnson, H. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Progress toward fusion energy

Description: This paper summarizes the basis for the present optimism in the magnetic fusion program, and describes some of the remaining tasks leading to a demonstration power reactor and the primary technologies necessary for that endeavor.
Date: March 11, 1981
Creator: Thomassen, K.I.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Safety assessment document for the Dynamic Test Complex B854

Description: A safety assessment was performed to determine if potential accidents at the 854 Complex at Site 300 could present undue hazards to the general public, personnel at Site 300, or have an adverse effect on the environment. The credible accidents that might have an effect on these facilities or have off-site consequences were considered. These were earthquake, extreme wind (including missiles), lightning, flood, criticality, high explosive (HE) detonation that disperses uranium and beryllium, spon… more
Date: December 11, 1981
Creator: Odell, B.N. & Pfeifer, H.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Scanning reflection and transmission photometer for large high power laser optics

Description: The Nova OTR (overall transmittance/reflectance) photometer operates at 1.064 nm, 528 nm, or 351 nm in order to closely simulate 1st, 2nd and 3rd harmonic frequencies of the Nova fusion laser. The optic is scanned on a large XY carriage while reflectance or transmittance data is taken on-the-fly. The system is controlled by an LSI 11/23 computer which processes the data and prints out the results in hard copy form, or stores data on a memory disk. The detectors are temperature controlled to wit… more
Date: December 11, 1981
Creator: Thomas, N. L.; Robinson, W. L.; Wirtenson, G. R. & Wallerstein, E. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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SNAP 19 Viking Program. Bimonthly Technical Progress Report, December 1980-January 1981

Description: Monitoring of power systems performance data for Pioneer 10 and Pioneer Saturn spacecrafts continued. Net power output for either system during mid-January of 1981 was 112 watts. Power degradation has, for several years, been stable between 4 and 5 watts per year. Viking 1 Lander data acquisition has been resumed following the conclusion of Saturn encounter activities. Figures show the Mars Lander performance history of Viking 1. These data include both the minimum and maximum data for each of … more
Date: March 11, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Stability and disturbance of large dc superconducting magnets

Description: This paper addresses the stability aspects of several successful dc superconducting magnets such as large bubble chamber magnets, and magnets for the Mirror Fusion Test Facility and MHD Research Facility. Specifically, it will cover Argonne National Laboratory 12-Foot Bubble Chamber magnets, the 15-foot Bubble Chamber magnets at Fermi National Laboratory, the MFTF-B Magnet System at Lawrence Livermore National Laboratory, the U-25B Bypass MHD Magnet, and the CFFF Superconducting MHD magnet buil… more
Date: November 11, 1981
Creator: Wang, S. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Summary of U.S. Compact Torus Experiments

Description: During the past several years a rapid increase has occurred in compact torus (CT) research in the United States, reflecting renewed interest in this simplified reactor consequences of this configuration. This paper reviews early approaches to CT formation and results and summarizes present experimental studies. Recent experiments have demonstrated a number of macroscopic aspects of the CT, including the conditions under which a macroscopically stable CT can be formed and maintained. Scaling exp… more
Date: March 11, 1981
Creator: Hartman, Charles W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tables and graphs of photon-interaction cross sections from 0. 1 keV to 100 MeV derived from the LLL evaluated-nuclear-data library

Description: Energy-dependent evaluated photon interaction cross sections and related parameters are presented for elements H through Cf(Z = 1 to 98). Data are given over the energy range from 0.1 keV to 100 MeV. The related parameters include form factors and average energy deposits per collision (with and without fluorescence). Fluorescence information is given for all atomic shells that can emit a photon with a kinetic energy of 0.1 keV or more. In addition, the following macroscopic properties are given… more
Date: November 11, 1981
Creator: Plechaty, E.F.; Cullen, D.E. & Howerton, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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