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0-D study of the compression of low temperature spheromaks

Description: Compression of low temperature spheromak plasmas has been studied with the aid of a O-D two-fluid computer code. It is found that in a plasma which is radiation dominated, the electron temperature can be increased by up to a factor of seven for a compression of a factor of two, provided the temperature is above some critical value (approx.25eV) and the electron density particle confinement time product n/sub e/tau/sub p/ greater than or equal to 1 x 10/sup 9/s/cm/sup 3/. If the energy balance i… more
Date: September 1, 1985
Creator: Meyerhofer, D. D.; Hulse, R. A. & Zweibel, E. G.
Item Type: Refine your search to only Report
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1-2 GeV synchrotron radiation facility at Lawrence Berkeley Laboratory

Description: The Advanced Light Source (ALS), a dedicated synchrotron radiation facility optimized to generate soft x-ray and vacuum ultraviole (XUV) light using magnetic insertion devices, was proposed by the Lawrence Berkeley Laboratory in 1982. It consists of a 1.3-GeV injection system, an electron storage ring optimized at 1.3 GeV (with the capability of 1.9-GeV operation), and a number of photon beamlines emanating from twelve 6-meter-long straight sections, as shown in Fig. 1. In addition, 24 bending-… more
Date: October 1, 1985
Creator: Berkner, K.H.
Item Type: Refine your search to only Article
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1 to 2 GeV/c beam line for hypernuclear and kaon research

Description: A kaon beam line operating in the range from 1.0 to 2.0 GeV/c is proposed. The line is meant for kaon and pion research in a region hitherto inaccessible to experimenters. Topics in hypernuclear and kaon physics of high current interest include the investigation of doubly strange nuclear systems with the K/sup -/,K/sup +/ reaction, searching for dibaryon resonances, hyperon-nucleon interactions, hypernuclear ..gamma.. rays, and associated production of excited hypernuclei. The beam line would p… more
Date: February 15, 1985
Creator: Chrien, R. E.
Item Type: Refine your search to only Report
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N = 2 Maxwell-Einstein Supergravity Theories: Their Compact and Non-Compact Gaugings and Jordan Algebras

Description: In this talk we give a review of our work on the construction and classification of N = 2 Maxwell-Einstein Supergravity theories (MESGT), study of the underlying algebraical and geometrical structure of these theories, and their compact and non-compact gaugings. We begin by summarizing our construction of the N = 2 MESGT's in five dimensions and give a geometrical interpretation to various scalar dependent quantities in the Lagrangian, based on the constraiants implied by supersymmetry. This is… more
Date: January 1, 1985
Creator: Guenaydin, M.; Sierra, G. & Townsend, P.K.
Item Type: Refine your search to only Article
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6. 4 Tesla dipole magnet for the SSC

Description: A design is presented for a dipole magnet suitable for the proposed SSC facility. Test results are given for model magnets of this design 1 m long and 4.5 m long. Flattened wedge-shaped cables (''keystoned'') are used in a graded, two-layer ''cos theta'' configuration with three wedges to provide sufficient field uniformity and mechanical rigidity. Stainless steel collars 15 mm wide, fastened with rectangular keys, provide structural support, and there is a ''cold'' iron flux return. The outer-… more
Date: May 1, 1985
Creator: Taylor, C.E.; Caspi, S.; Gilbert, W.; Meuser, R.; Mirk, K.; Peters, C. et al.
Item Type: Refine your search to only Article
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6. 4 tesla dipole magnet for the SSC. Revision

Description: A design is presented for a dipole magnet suitable for the proposed SSC facility. Test results are given for model magnets of this design 1 m long and 4.5 m long. Flattened wedge-shaped cables (''keystoned'') are used in a graded, two-layer ''cos theta'' configuration with three wedges to provide sufficient field uniformity and mechanical rigidity. Stainless steel collars 15 mm in radial depth, fastened with rectangular keys, provide structural support, and there is a ''cold'' iron flux return.… more
Date: August 1, 1985
Creator: Taylor, C.E.; Caspi, S.; Gilbert, W.; Hassenzahl, W.; Meuser, R.; Mirk, K. et al.
Item Type: Refine your search to only Article
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6 GeV light source project cost estimating procedure

Description: To maintain uniformity in estimating the cost requirements of the various components of the 6 GeV Light Source, the following procedure will be used by all the task groups. The procedure uses a Work Breakdown Structure (VBS) to break down the project into manageable, easy to estimate, components. The project is first broken down into major tasks or categories. Then each major division is continuously subdivided until the desired level of detail is achieved. This can be shown best by using the e… more
Date: October 23, 1985
Item Type: Refine your search to only Report
open access

10-MHz high-voltage modulator with pulse-width and repetition-rate agility

Description: Requirements for control and rapid switching of the proton beam at the Los Alamos Meson Physics Facility (LAMPF) are continually revised to support accelerator upgrades and modifications. A recent upgrade required the development of a 10-MHz high-voltage modulator for an electrostatic kicker with real-time control of pulse width and repetition rate over a range of four decades. The modulator must be capable of producing a voltage pulse across a capacitive load with a rise time of less than or e… more
Date: January 1, 1985
Creator: Krausse, G.J.
Item Type: Refine your search to only Article
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14 MeV neutron work at the Lawrence Livermore National Laboratory

Description: The 14 MeV neutron work at Lawrence Livermore National Laboratory (LLNL) covers two main areas of interest to this Symposium: (1) measurements and calculations of differential cross sections; and (2) integral measurements of the neutron and gamma emission spectra. In both areas a large number of materials have been studied, spanning a wide mass range (6 < A < 239), of interest to fusion and hybrid reactors. In this presentation a brief description of the experimental techniques and calculationa… more
Date: July 1, 1985
Creator: Hansen, L. F.
Item Type: Refine your search to only Article
open access

20 keV undulators for a 6-GeV storage ring

Description: The main goal of the future 6-GeV electron storage ring is to provide 20-keV fundamental harmonic radiations from insertion devices. Parameter restrictions of REC-vanadium permendur hybrid undulators have been examined. The critical factor is the achievable minimum gap of the undulator. Variations of the spectral brilliance for different beam parameters are also shown. 6 refs., 5 figs.
Date: January 1, 1985
Creator: Kim, S. H. & Cho, Y.
Item Type: Refine your search to only Article
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32-Bit computer for large memory applications on FASTBUS

Description: A FASTBUS based 32-bit computer is being built at Los Alamos National Laboratory for use in systems requiring large fast memory in the FASTBUS environment. A separate local execution bus allows data reduction to proceed concurrently with other FASTBUS operations. The computer, which can operate in either master or slave mode, includes the National Semiconductor NS32032 chip set with demand paged memory management, floating point slave processor, interrupt control unit, timers, and time-of-day c… more
Date: January 1, 1985
Creator: Blossom, J. M.; Hong, J. P. & Kellner, R. G.
Item Type: Refine your search to only Article
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32-Bit FASTBUS computer

Description: Los Alamos National Laboratory is building a 32-bit FASTBUS computer using the NATIONAL SEMICONDUCTOR 32032 central processing unit (CPU) and containing 16 million bytes of memory. The board can act both as a FASTBUS master and as a FASTBUS slave. It contains a custom direct memory access (DMA) channel which can perform 80 million bytes per second block transfers across the FASTBUS.
Date: January 1, 1985
Creator: Blossom, J.M.; Hong, J.P. & Kellner, R.G.
Item Type: Refine your search to only Article
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209-E Upgrades

Description: Pacific Northwest Laboratory has initiated a review of the Safeguards and Security systems at the Critical Mass Laboratory with regards to determining appropriate upgrading actions that assure that an effective and efficient Safeguards and Security posture consistent with DOE-RL policies, procedures, and priorities is effected. As a result of this review, PNL has concluded that specific upgrades are required at CML that provide a demonstrated enhancement to the overall security posture of the f… more
Date: February 4, 1985
Creator: Merrill, B. J. & DeMyer, J. J.
Item Type: Refine your search to only Report
open access

300-Element Silicon-Lithium Position-Sensitive Imaging Detector for Angiography

Description: Silicon lithium-drifted (Si(Li)) detectors 150 mm long, 10 mm wide and 5 mm thick with 300 individual elements have been fabricated as imaging detectors for noninvasive studies of human coronary arteries using 33 keV x-rays from a synchrotron radiation beamline. This detector is an extension of earlier work on 30 mm long devices with initially 30 and later 60 elements. The detector fabrication details are discussed highlighting problems in uniform lithium-ion compensation. The device structure … more
Date: October 1, 1985
Creator: Walton, J. T.; Sommer, H. A.; Thompson, A. C.; Hughes, E. B. & Zeman, H. D.
Item Type: Refine your search to only Article
open access

E-740 proportional drift tube tests

Description: The D0 muton detector will consist of large area arrays of proportional drift tubes (PDT's). The beam crossing repetition rate together with the trigger processing time will constrain the maximum drift time to be about one microsecond, corresponding to a drift distance of about 5.0 cm. With such a narrow cell width, it is possible to use rather long cells (up to 6.0 meters) and still keep cell occupancy acceptable. To simplify track reconstruction, space points will be recorded for each track. … more
Date: March 1, 1985
Creator: Brown, C.; Green, D.; Haggerty, H.; Hansen, S.; Hedin, D.; Jostlein, H. et al.
Item Type: Refine your search to only Report
open access

1500-MeV fixed-field alternating-gradient synchrotron for a pulsed-spallation neutron source

Description: The first conceptual design of the FFAG for ASPUN was an 1100-MeV, 20-sector machine with an injection radius of 17.5 m and an extraction radius of 18.75 m. The conceptual design currently under study has a higher extraction energy, a larger average radius, but still has 20 sectors. The current interest in higher extraction energy is stimulated by calculations that indicate that the useful neutron production per incident proton is still increasing proportionally up to 1500 MeV. The larger radiu… more
Date: January 1, 1985
Creator: Kustom, R.L.; Khoe, T.K. & Crosbie, E.A.
Item Type: Refine your search to only Article
open access

18t Resistive Magnet Development. Conceptual Design Second Annual Report

Description: This report documents the work performed on a normal conducting magnet during fiscal year 1985. Emphasis, during the study, was on refinement of the structural design and optimization of the coil current density distribution for either maximum field generation or minimum power consumption. The results have shown that one can generate a 4.4 tesla field using 6.14 megawatts or 3.1 tesla at 1.43 megawatts. The structural design has been modified to stiffen the outer turn of the conductor. The modi… more
Date: October 1, 1985
Creator: Agarwal, K. L.; Burgeson, J. E.; Gurol, H.; Mancuso, A. & Michels, P. H.
Item Type: Refine your search to only Report
open access

1982 THERMAL SHALLOW RESERVOIR TESTING

Description: An extensive study of the Thermal Shallow Reservoir at The Geysers was performed in 1982 to improve our understanding of the source and flow patterns of steam in the shallow anomaly and how they relate to the Thermal 4 blowout. This project included gathering and analyzing pressure transient, enthalpy, tracer and chemical data and developing a reservoir model that was consistent with this data. Following the pressure transient testing and analysis, a convection-plume with lateral-flow model was… more
Date: January 22, 1985
Creator: Mogen, P.; Pittinger, L. & Magers, M.
Item Type: Refine your search to only Article
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1983 international intercomparison of nuclear accident dosimetry systems at Oak Ridge National Laboratory

Description: An international intercomparison of nuclear accident dosimetry systems was conducted during September 12-16, 1983, at Oak Ridge National Laboratory (ORNL) using the Health Physics Research Reactor operated in the pulse mode to simulate criticality accidents. This study marked the twentieth in a series of annual accident dosimetry intercomparisons conducted at ORNL. Participants from ten organizations attended this intercomparison and measured neutron and gamma doses at area monitoring stations … more
Date: April 1, 1985
Creator: Swaja, R. E.; Greene, R. T. & Sims, C. S.
Item Type: Refine your search to only Report
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1983 ORNL intercomparison of personnel neutron and gamma dosemeters

Description: The Ninth Personnel Dosimetry Intercomparison Study was conducted during April 19-21, 1983, at the Oak Ridge National Laboratory. Dosemeters from 33 participating agencies were mounted on water-filled polyethylene elliptical phantoms and exposed to a range of low-level dose equivalents (0.02-0.45 mSv gamma and 0.49-11.14 mSv neutron) which could be encountered during routine personnel monitoring in mixed radiation fields. The Health Physics Research Reactor served as the radiation source for si… more
Date: January 1, 1985
Creator: Swaja, R. E.; Sims, C. S. & Greene, R.T.
Item Type: Refine your search to only Report
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1984 Bibliography of atomic and molecular processes

Description: This annotated bibliography includes papers on atomic and molecular processes published during 1984. Sources include scientific journals, conference proceedings, and books. Each entry is designated by one or more of the 114 categories of atomic and molecular processes used by the Controlled Fusion Atomic Data Center, Oak Ridge National Laboratory to classify data. Also indicated is whether the work was experimental or theoretical, what energy range was covered, what reactants were investigated,… more
Date: April 1, 1985
Creator: Barnett, C. F.; Gilbody, H. B.; Gregory, D. C.; Griffin, P. M.; Havener, C. C.; Howard, A. M. et al.
Item Type: Refine your search to only Report
open access

1984 environmental monitoring report

Description: The environmental monitoring program has been designed to ensure that BNL facilities operate such that the applicable environmental standards and effluent control requirements have been met. A listing, as required by DOE Order 5484.1 of BNL facilities, of environmental agencies and permits is provided in the Environmental Program Information Section 3.0, Table B. Since the aquifer underlying Long Island has been designated a ''sole source'' aquifer, the Environmental Protection Agency (EPA) Dri… more
Date: April 1, 1985
Creator: Day, L.E.; Miltenberger, R.P. & Naidu, J.R. (eds.)
Item Type: Refine your search to only Report
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