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open access

Access control system for ISABELLE

Description: An access system based on the one now in operation at the CERN ISR is recommended. Access doors would presumably be located at the entrances to the utility tunnels connecting the support buildings with the ring. Persons requesting access would insert an identity card into a scanner to activate the system. The request would be autologged, the keybank adjacent to the door would be unlocked and ISABELLE operations would be notified. The operator would then select the door, activating a TV-audio li… more
Date: August 17, 1977
Creator: Potter, K. & Littenberg, L.
Partner: UNT Libraries Government Documents Department
open access

Auger study of surface carbon and oxygen on thorium following ion bombardment

Description: The composition of a thorium metal surface has been monitored using Auger electron spectroscopy following Ar/sup +/ bombardment at different temperatures. After extended Ar/sup +/ bombardment, enough contaminated overlayers were removed to expose a surface region containing only thorium, bulk impurities, and imbedded argon. The main impurities, carbon and oxygen, differed in their behavior when the sample was annealed following bombardment. The amount of surface carbon either increased or remai… more
Date: November 17, 1977
Creator: Bastasz, R. & Colmenares, C.
Partner: UNT Libraries Government Documents Department
open access

Stimulated Raman scatter in laser fusion target chambers

Description: The target chamber of a laser fusion reactor will contain small amounts of background gases. As the beam is focused, it ionizes the gas and Raman scattering is induced. Density limits on the background gas are found in order that the laser beam will not become appreciably decollimated. It is found that laser bandwidth efficiently decreases the scattering effect.
Date: October 17, 1977
Creator: Thomson, J.J.
Partner: UNT Libraries Government Documents Department
open access

Methodology for assessing the potential impact on air quality resulting from geothermal resource development in the Imperial Valley

Description: Methodology in use in the Imperial Valley for assessing the potential impact on air quality that may result from the development of geothermal resources is discussed. The installation of a network of air quality stations for characterizing the air quality and atmospheric transport properties in the valley prior to development is discussed. Analyses of geothermal fluids for various gases are performed to evaluate the potential emission rates from future geothermal power plants. The principal pol… more
Date: October 17, 1977
Creator: Gudiksen, P. H.; Axelrod, M. C.; Ermak, D. L.; Lamson, K. C. & Lange, R.
Partner: UNT Libraries Government Documents Department
open access

Mechanical design for TMX injector system

Description: The injector system for the Tandem Mirror Experiment (TMX) contains the components required to create and maintain a high-temperature, high-density plasma. These components include a streaming-plasma gun in each of the plug tanks to form the target-plasma, 24 neutral-beam source modules for injecting neutral deuterium atoms to heat and replace losses from the plasma, and a gas box system that applies a streaming cold gas to the plasma to stabilize it. This paper discusses the mechanical design … more
Date: October 17, 1977
Creator: Calderon, M.O.; Chen, F.F.K. & Denhoy, B.S.
Partner: UNT Libraries Government Documents Department
open access

Liquid nitrogen cooled liners for 2XIIB

Description: Liquid-nitrogen-cooled liners have been installed in the neutral-beam source tanks of 2XIIB. The installation has resulted in improvements in vacuum pumping, although testing is not complete. The liners are stainless-steel-flooded-type liners, using spot-welded-and-inflation construction. The natural-convection flow system must keep the liners cold during the high heat loads imposed during Ti gettering.
Date: October 17, 1977
Creator: Atkinson, D.P. & Calderon, M.O.
Partner: UNT Libraries Government Documents Department
open access

Comparison of theory and simulations with recent laser plasma experiments

Description: In the past few months, detailed experimental data have become available on laser light absorption versus angle, plasma density profiles near the critical surface, and stimulated scattering processes. In the light of these experiments, it seems timely to reassess our theoretical understanding of these phenomena. A quantitative comparison of the data with current results of plasma simulations and theory is presented and the areas where further theoretical effort is called for are pointed out. Th… more
Date: October 17, 1977
Creator: Max, C.E.
Partner: UNT Libraries Government Documents Department
open access

Parameters of a field-reversed mirror reactor

Description: Computations have been made of the parameters of a neutral-beam driven, field-reversed mirror reactor as a function of beam injection energy. Q values of 4 to 5 and a fusion power of 10 to 50 MW per cell are found at beam energies of 200 to 500 keV. Cost estimates indicate a direct capital cost of less than $1000/kW/sub e/ for multicell versions of the reactor.
Date: May 17, 1977
Creator: Devoto, R. S.; Carlson, G. A.; Condit, W. C. & Hanson, J. D.
Partner: UNT Libraries Government Documents Department
open access

Radiological safety design considerations for a laser-fusion facility

Description: Detailed neutronics and photonics calculations have been performed for analyzing prompt and residual radiations and required shielding associated with the design of a laser-fusion facility with a nominal yield of 10/sup 19/ neutrons per D--T burn pulse. The standard Livermore Monte Carlo codes and nuclear data cross section libraries were used in calculations. The Bateman equation was used to calculate the accumulation and decay of radionuclide chain products. A number of activation sensitivity… more
Date: March 17, 1977
Creator: Singh, M. S.
Partner: UNT Libraries Government Documents Department
open access

Automatic alignment system for the twenty beam shiva fusion laser

Description: The following are described: oscillator/preamp alignment; chain input pointing; spatial filter pinhole alignment; output pointing, focusing, and centering system; and alignment controls. (MHR)
Date: October 17, 1977
Creator: Bliss, E.S.; Holloway, F.W. & Dryden, E.H.
Partner: UNT Libraries Government Documents Department
open access

Survey of models to predict the effect of geothermal power development on domestic water supplies and to design pollution monitoring networks

Description: The Imperial Valley is a 2,000-km/sup 2/ agricultural region in Southern California with annual crop values of more than $500 million. Geothermal reserves estimated at 130 GWe-yrs were found beneath this Valley. Development of that geothermal energy should occur in the next 10 to 20 years. To ensure that development is carried out in an environmentally sound manner, Lawrence Livermore Laboratory is engaged in a 3-yr study of the environmental effects that development of geothermal power product… more
Date: August 17, 1977
Creator: Pimentel, K. D.
Partner: UNT Libraries Government Documents Department
open access

TMX, a new facility

Description: As a mirror fusion facility, the Tandem Mirror Experiment (TMX) at the Lawrence Livermore Laboratory (LLL) is both new and different. It utilizes over 23,000 ft/sup 2/ of work area in three buildings and consumes over 14 kWh of energy with each shot. As a systems design, the facility is broken into discreet functional regions. Among them are a mechanical vacuum pumping system, a liquid-nitrogen system, neutral-beam and magnet power supplies, tiered structures to support these supplies, a neutro… more
Date: October 17, 1977
Creator: Thomas, S. R., Jr.
Partner: UNT Libraries Government Documents Department
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