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Target support for inertial confinement fusion

Description: General Atomics (GA) plays an important industrial support role for the US Inertial Confinement Fusion (ICF) program in the area of target technology. This includes three major activities: target fabrication support, target handling systems development, and target chamber design. The work includes target fabrication for existing ICF experiments, target and target system development for future experiments, and target research and target chamber design for experiments on future machines, such as ā€¦ more
Date: August 1, 1995
Creator: Schultz, K.R.
Partner: UNT Libraries Government Documents Department
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Power plant production of inertial confinement fusion targets

Description: Many of the current techniques for fabricating experimental targets appear to be directly extendable to the high-rate, low-cost production of reactor targets. This report describes several new techniques that, in conjunction with the expansion of existing techniques, can constitute a target factory. We have evaluated this concept on the basis of a generalized reactor target design and the projected specifications of reactor-grade targets.
Date: February 15, 1979
Creator: Hendricks, C. D. & Johnson, W. L.
Partner: UNT Libraries Government Documents Department
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Dynamic Pressure of Liquid Mercury Target During 800-MeV Proton Thermal Shock Tests

Description: Described here are efforts to diagnose transient pressures generated by a short-pulse (about 0.5 microseconds) high intensity proton ({approximately} 2 * 10 14 per pulse) beam. Proton energy is 800-MeV. The tests were performed at the Los Alamos Neutron Science Center - Weapons Neutron Research (LANSCE-WNR). Such capability is required for understanding target interaction for the Spallation Neutron Source project as described previously at this conference.1-4 The main approach to effect the preā€¦ more
Date: February 1, 2000
Creator: Allison, S. W.; Andriulli, J. B.; Cates, M. R.; Earl, D. D.; Haines, J. R.; Morrissey, F. X. et al.
Partner: UNT Libraries Government Documents Department
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Target fabrication for particle beam fusion

Description: Near-term exploding pusher targets for electron or light ion beam driven fusion are typically several mm in diameter and have relatively thick shells (rho r approx. 0.001 to 0.03 gm/cm/sup 2/). Current fabrication techniques utilize parylene polymer coatings on leachable mandrels.
Date: January 1, 1980
Creator: Bieg, K.W. & Chang, J.
Partner: UNT Libraries Government Documents Department
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Status of target physics for inertial confinement fusion: Report on the review at DOE Headquarters, Germantown, MD on November 14--17, 1988

Description: A four day review to assess the status of target physics of inertial confinement fusion was held at US Department of Energy (DOE) Headquarters on November 14--17, 1988. This review completes the current series of reviews of the inertial fusion program elements to assess the status of the data base for a decision to proceed with the proposed Laboratory Microfusion Facility (LMF) that is being planned. In addition to target physics, the program elements that have been reviewed previously include ā€¦ more
Date: March 9, 1990
Partner: UNT Libraries Government Documents Department
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Thin foils for beam-foil spectroscopy

Description: Two effects are discussed. The first involves comparing the breakage of carbon foils (5 $mu$g cm$sup -2$) under impact of focused and non-focused beams. Under defocused beam conditions produced by x and y sweeping at frequencies of 1 kHz across the 25 mm$sup 2$ foil, breakage was reduced by a factor of 5 to 10. Secondly, we discuss the effect of tilting thin foils relative to incoming heavy- ion beams. The final surface interactions change drastically giving rise to changes in the excited heavyā€¦ more
Date: January 1, 1975
Creator: Berry, H.G.
Partner: UNT Libraries Government Documents Department
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POLARIZATION IN PION-PROTON SCATTERING FROM 670-3750 MeV/c

Description: Using a polarized proton target, we have measured the polarization parameter P({theta}) in pion-proton scattering for both positive and negative pions. Because there seems to be a great deal of current interest in the analysis of pion-proton scattering we wish to present these experimental results at this time even though we have not yet completed their analysis. The measurement consisted of scattering pions from polarized target protons and observing the asymmetry in scattered intensity, I({thā€¦ more
Date: October 1, 1966
Creator: Chamberlain, Owen; Hansroul, Michel J.; Johnson, Claiborne H.; Grannis, Paul D.; Holloway, Leland E.; Valentin, Luc et al.
Partner: UNT Libraries Government Documents Department
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PION SCATTERING FROM A POLARIZED TARGET

Description: This report describes the use of a target containing polarized protons in a particle-scattering experiment. Positive pions of 246-MeV kinetic energy were scattered from the polarized protons. The parameter P that was measured is equivalent to that determined by analyzing the recoil-proton polarization in scattering from an unpolarized target. It has been measured to a higher accuracy than heretofore achieved in pion-proton scattering, at an energy and at angles inconvenient for double-scatterinā€¦ more
Date: August 7, 1963
Creator: Chamberlain, Owen; Jeffries, Carson D.; Schultz, Claude H.; Shapiro, Gilbert & Van Rossum, Ludwig.
Partner: UNT Libraries Government Documents Department
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Advances in U.S. Heavy Ion Fusion Science

Description: During the past two years, the US heavy ion fusion science program has made significant experimental and theoretical progress in simultaneous transverse and longitudinal beam compression, ion-beam-driven warm dense matter targets, high-brightness beam transport, advanced theory and numerical simulations, and heavy ion target physics for fusion. First experiments combining radial and longitudinal compression {pi} of intense ion beams propagating through background plasma resulted in on-axis beamā€¦ more
Date: September 1, 2007
Creator: Logan, B. G.; Barnard, J. J.; Bieniosek, F. M.; Cohen, R. H.; Coleman, J. E.; Davidson, R. C. et al.
Partner: UNT Libraries Government Documents Department
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Advances in U.S. Heavy Ion Fusion Science

Description: During the past two years, the US heavy ion fusion science program has made significant experimental and theoretical progress in simultaneous transverse and longitudinal beam compression, ion-beam-driven warm dense matter targets, high-brightness beam transport, advanced theory and numerical simulations, and heavy ion target physics for fusion. First experiments combining radial and longitudinal compression {pi} of intense ion beams propagating through background plasma resulted in on-axis beamā€¦ more
Date: September 3, 2007
Creator: Barnard, J. J.; Logan, B. G.; Bieniosek, F. M.; Cohen, R. H.; Coleman, J. E.; Davidson, R. C. et al.
Partner: UNT Libraries Government Documents Department
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Synchrotron Radiation Computed Tomography (SRCT) of Ruled Laser Targets

Description: High spatial resolution tomography benefits from a high brightness source (photons/(mr{sup 2} x source area)). A synchrotron radiation source provides extremely high continuous brightness with spectral characteristics suited to a wide variety of imaging needs. Therefore, during the initial testing of the new synchrotron radiation computed tomography (SRCT) system at Stanford Synchrotron Radiation Laboratory, it was suggested that we image a ruled target designed for NIF experiments. This is a dā€¦ more
Date: March 15, 2002
Creator: Kinney, J H & Haupt, D L
Partner: UNT Libraries Government Documents Department
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Realizations of polarized targets in storage rings

Description: While particle storage rings generally provide a large average current, they require ultra-thin targets in order to maintain a reasonable lifetime of the beam. Targets composed of polarized atomic gas are well-suited for use in storage rings because of their thinness and the high degree of purity and polarization possible. Several of these so-called internal targets have been developed and successfully used to measure scattering asymmetries at Novosibirsk; future experiments have been proposed ā€¦ more
Date: January 1, 1990
Creator: Kinney, Edward R.
Partner: UNT Libraries Government Documents Department
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Gaseous laser targets and optical diagnostics for studying compressible hydrodynamic instabilities

Description: Explore the combination of optical diagnostics and gaseous targets to obtain important information about compressible turbulent flows that cannot be derived from traditional laser experiments for the purposes of V and V of hydrodynamics models and understanding scaling. First year objectives: Develop and characterize blast wave-gas jet test bed; Perform single pulse shadowgraphy of blast wave interaction with turbulent gas jet as a function of blast wave Mach number; Explore double pulse shadowā€¦ more
Date: June 29, 2001
Creator: Edwards, J. M.; Robey, H. & Mackinnon, A.
Partner: UNT Libraries Government Documents Department
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Hot Electron Diagnostic in a Solid Laser Target by K-Shell Lines Measurement from Ultra-Intense Laser-Plasma Interactions R=1.06 (micron)m, 3x10 W/cm -2(less than or equal to) 500 J

Description: Characterization of hot electron production (a conversion efficiency from laser energy into electrons) from ultra intense laser-solid target interaction by observing molybdenum (Mo) K{beta} as well as K{alpha} emissions from a buried fluorescence tracer layer in the targets has been done. The experiments used 1.06 {micro}m laser light with an intensity of from 2 x 10{sup 18} up to 3 x 10{sup 20} W cm{sup -2} (20-0.5 ps pulse width) and an on target laser energy of 280-500 J. The conversion effiā€¦ more
Date: July 27, 2000
Creator: Yasuike, K.; Wharton, K. B.; Key, M. H.; Hatchett, S. P. & Snavely, R. A.
Partner: UNT Libraries Government Documents Department
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Neutronic Assessment of Transmutation Target Compositions in Heterogeneous Sodium Fast Reactor Geometries

Description: The sodium fast reactor is under consideration for consuming the transuranic waste in the spent nuclear fuel generated by light water reactors. This work is concerned with specialized target assemblies for an oxide-fueled sodium fast reactor that are designed exclusively for burning the americium and higher mass actinide component of light water reactor spent nuclear fuel (SNF). The associated gamma and neutron radioactivity, as well as thermal heat, associated with decay of these actinides mayā€¦ more
Date: February 1, 2008
Creator: Bays, Samuel E.; Ferrer, Rodolfo M.; Pope, Michael A.; Forget, Benoit & Asgari, Mehdi
Partner: UNT Libraries Government Documents Department
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