UNT Libraries Government Documents Department - 18 Matching Results

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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

Application of structural-mechanics methods to the design of large tandem-mirror fusion devices (MFTF-B)

Description: The Mirror Fusion Test Facility (MFTF-B) at Lawrence Livermore National Laboratory requires state-of-the-art structural-mechanics methods to deal with access constraints for plasma heating and diagnostics, alignment requirements, and load complexity and variety. Large interactive structures required an integrated analytical approach to achieve a reasonable level of overall system optimization. The Tandem Magnet Generator (TMG) creates a magnet configuration for the EFFI calculation of electroma… more
Date: March 4, 1985
Creator: Karpenko, V.N. & Ng, D.S.
Item Type: Refine your search to only Article
open access

Experimental level-structure determination in odd-odd actinide nuclei

Description: The status of experimental determination of level structure in odd-odd actinide nuclei is reviewed. A technique for modeling quasiparticle excitation energies and rotational parameters in odd-odd deformed nuclei is applied to actinide species where new experimental data have been obtained by use of neutron-capture gamma-ray spectroscopy. The input parameters required for the calculation are derived from empirical data on single-particle excitations in neighboring odd-mass nuclei. Calculated con… more
Date: April 4, 1985
Creator: Hoff, R.W.
Item Type: Refine your search to only Article
open access

Geometric perturbation theory and plasma physics

Description: Modern differential geometric techniques are used to unify the physical asymptotics underlying mechanics, wave theory and statistical mechanics. The approach gives new insights into the structure of physical theories and is suited to the needs of modern large-scale computer simulation and symbol manipulation systems. A coordinate-free formulation of non-singular perturbation theory is given, from which a new Hamiltonian perturbation structure is derived and related to the unperturbed structure.… more
Date: April 4, 1985
Creator: Omohundro, S.M.
Item Type: Refine your search to only Report
open access

High efficiency ICF driver employing magnetically confined plasma rings

Description: We discuss the possibility of achieving energy, power and power density necessary for ICF by magnetically accelerating plasma confined by a compact torus (CT) field configuration. The CT, which consists of a dipole (poloidal) field and imbedded toroidal field formed by force-free, plasma current, is compressed and accelerated between coaxial electrodes by B/sub THETA/ fields as in a coaxial railgun. Compression and acceleration over several meters by a 9.4 MJ capacitor bank is predicted to give… more
Date: March 4, 1985
Creator: Meeker, D. J.; Hammer, J. H. & Hartman, C. W.
Item Type: Refine your search to only Article
open access

In-beam Spectroscopy Using the (t,p) Reaction: Recent Results Near A = 100

Description: Charged particle spectroscopy using the (t,p) reaction has been employed for more than two decades to study the low-energy structure of nuclei. This reaction has contributed significantly to the elucidation of single-particle and collective phenomena for neutron rich nuclei in virtually every mass region. We have begun to use the (t,p) reaction in conjunctionuclei with in-beam ..gamma..-ray and conversion-electron spectroscopy to bring additional understanding to low-energy nuclear structure. I… more
Date: September 4, 1985
Creator: Henry, E. A.; Estep, R. J.; Meyer, R. A.; Kantele, J.; Decman, D. J.; Mann, L. G. et al.
Item Type: Refine your search to only Article
open access

Magnetic ripple correction in tandem mirrors by ferromagnetic inserts

Description: Magnetic ripple of 1% or more caused by discrete solenoid coils in the central cells of tandem mirrors may severely affect the MHD stability. The ripple amplitude can be reduced by an order of magnitude by ferromagnetic annuli inserted within the coils at the regions of ripple maxima. The inserts need not affect the accessibility, coil diameter, or capital cost, since large quantities of steel are required within the coils for the neutron blanket and shield. Design of the ripple correction is s… more
Date: April 4, 1985
Creator: Hamilton, G.W.
Item Type: Refine your search to only Article
open access

Marine Sample Exploitation Project: estimates regarding the sensitivity and technology for the detection of nuclear explosion debris in the marine environment

Description: The report discusses the possibility of detecting a small nuclear explosion in which most of the fission products are released to the ocean. The use of marine plankton as bioaccumulators is proposed to deal with the problem of dilution. 7 refs. (ACR)
Date: June 4, 1985
Creator: Marsh, K.V. & Buddemeier, R.W.
Item Type: Refine your search to only Report
open access

Pseudopotential calculations and photothermal lensing measurements of two-photon absorption in solids

Description: We have studied two-photon absorption in solids theoretically and experimentally. We have shown that it is possible to use accurate band structure techniques to compute two-photon absorption spectra within 15% of measured values in a wide band-gap material, ZnS. The empirical pseudopotential technique that we used is significantly more accurate than previous models of two-photon absorption in zinc blende materials, including present tunneling theories (which are essentially parabolic-band resul… more
Date: November 4, 1985
Creator: White, W. T., III
Item Type: Refine your search to only Report
open access

Simulation of automatic control of MFTF-B neutral beams

Description: This report describes the results obtained by using data generated at Lawrence Livermore Laboratory's MFS Test Facility as input to the filtering and control programs developed at LBL. Graphs that illustrate the source models/filters performance, as well as some conditioning history are included. Probable sources of error are discussed.
Date: March 4, 1985
Creator: Theil, E.
Item Type: Refine your search to only Report
open access

Test and demonstration of a 1-MW wellhead generator: helical screw expander power plant, Model 76-1. Final report to the International Energy Agency

Description: A 1-MW geothermal wellhead power plant incorporating a Lysholm or helical screw expander (HSE) was field tested between 1980 and 1983 by Mexico, Italy, and New Zealand with technical assistance from the United States. The objectives were to provide data on the reliability and performance of the HSE and to assess the costs and benefits of its use. The range of conditions under which the HSE was tested included loads up to 933 kW, mass flowrates of 14,600 to 395, 000 lbs/hr, inlet pressures of 64… more
Date: July 4, 1985
Item Type: Refine your search to only Report
open access

Tokamak ignition/burn experimental research device

Description: As part of a continuing effort by the Office of Fusion Energy to define an ignition experiment, a superconducting tokamak has been designed with thin neutron shielding and aggressive magnet and plasma parameters. By so minimizing the inner radial dimensions of the tokamak center post, coil, and shielding region, the plasma major radius is reduced with a corresponding reduction in device costs. The peak nuclear-heating rate in the superconducting TF coils is 22 mW/cm/sup 3/, which results in a s… more
Date: April 4, 1985
Creator: Henning, C. D.; Logan, B. G.; Barr, W. L.; Bulmer, R. H.; Doggett, J. N.; Johnston, B. M. et al.
Item Type: Refine your search to only Article
open access

Westinghouse Materials Company (WMCO) of Ohio. Final report, October 25, 1985--December 31, 1985

Description: This document summarizes the second two weeks of the transition plan for Westinghouse Materials Company (WMCO) to transition into management of the Feed Materials Production Center. The report presents accomplishments, planned activities, and percieved problems for the process, organized into 15 general areas: operations and maintenance; human resources; community involvement; environmental, safety and health; security and safeguards; finance; legal and contracts management; engineering and con… more
Date: December 4, 1985
Creator: Boswell, B.
Item Type: Refine your search to only Report
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