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Tomography of laser fusion plasmas

Description: Experimental programs exist in a number of laboratories throughout the world to test the feasibility of using powerful laser systems to drive the implosion of hydrogen isotope fuel to thermonuclear burn conditions. In a typical experiment multiple laser beams are focused onto a glass microshell (typically 50 ..mu..m to 200 ..mu..m diameter) filled with an equimolar D-T gas mixture. X-ray and particle emissions from the target provide important information about the hydrodynamic implosion of the… more
Date: August 2, 1977
Creator: Ceglio, N.M.
Partner: UNT Libraries Government Documents Department
open access

Diagnostics developments and applications for laser fusion experiments

Description: Some diagnostics techniques applied to current laser fusion target experiments are reviewed. Specifically, holographic interferometry of target plasmas, coded aperture imaging of thermonuclear alpha-particles and neutron energy spectrum measurements are discussed.
Date: September 2, 1977
Creator: Coleman, L.W.
Partner: UNT Libraries Government Documents Department
open access

Electron energy and space charge calculations in reflex diodes

Description: Previously reported Monte Carlo code calculations of the electron energy distributions and the consequent reflex triode characteristics will be presented for two different anode designs. In addition, a generalized formulation of Poisson's equation will be used to examine the virtual cathode side of a reflex diode. The familiar ''resonance'' solution for the reflex triode is again found, but with a different physical interpretation. In the former case the current diverges, but in the virtual cat… more
Date: May 2, 1977
Creator: Shearer, J. W.
Partner: UNT Libraries Government Documents Department
open access

Challenge in Numerical Software for Microcomputers

Description: Microcomputers are now capable of serious numerical computation using programmed floating-point arithmetic and Basic compilers. Unless numerical software designers for these machines exploit experience gained in providing software for larger machines, history will repeat with the initial spread of treacherous software. This paper discusses good software, especially for the elementary functions, in terms of reliability and robustness. The emphasis. is on insight rather than detailed algorithms, … more
Date: September 2, 1977
Creator: Cody, W J
Partner: UNT Libraries Government Documents Department
open access

Neutron spectra from 30-MeV deuterons on a thick beryllium target. [Cross sections]

Description: The neutron spectra produced by bombarding a thick beryllium target with 30-MeV deuterons at the University of California, Davis, cyclotron was measured. These spectra are of interest in studying the effect of neutrons on materials to be used in future fusion reactors. The spectra were inferred from the activation of two sets of detector foils placed at an angle THETA = 0/sup 0/ to the deuteron beam, one immediately behind the beryllium target block, and one 40 mm to the rear. The SAND-II progr… more
Date: May 2, 1977
Creator: Nethaway, D. R.; Van Konynenburg, R. A. & Guinan, M. W.
Partner: UNT Libraries Government Documents Department
open access

Mirror machine program in the USA

Description: As the result of recent experimental progress, theoretical advances, and the emergence of new approaches to the improvement of mirror confinement, the mirror approach has become the principal alternative to the tokamak in the USA magnetic fusion program. Emphasis is now centered on the Tandem Mirror and Field-reversed Mirror Concepts, which theoretically can obtain Q values of five or more. Recent progress in the mirror fusion program includes a series of favorable advances in the 2XIIB experim… more
Date: September 2, 1977
Creator: Coensgen, F. H.
Partner: UNT Libraries Government Documents Department
open access

Considerations on W. -->. hadron jets. [SU(2) x U(1), gauge invariance]

Description: It is pointed out that another way to look for the bosons signal for the identification of the W/sup + -/ and the Z/sup 0/ is through decays to hadronic jets. Although the background is a priori large, the jets may have such distinctive features so as to be recognizable. An SU(2) x U(1) gauge theory with six quarks and six leptons all in left-handed doublets and right-handed singlets is considered.
Date: September 2, 1977
Creator: Williams, P. K.; Chung, S. U.; Flaminio, V.; Paschos, E. A.; Paige, F. E. & Trueman, T. L.
Partner: UNT Libraries Government Documents Department
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