Inertial confinement fusion target filling at Los Alamos National Laboratory

Journal Article · Tue Dec 31 04:00:00 EST 1996 · Fusion Technology

OSTI ID:447359

Nobile, A; Keddy, M D; Hemphill, R L ^[1]

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1. Los Alamos National Lab., NM (United States)

Capability to fill inertial confinement fusion (ICF) targets with DT has recently been established at the Weapons Engineering Tritium Facility (WETF) at Los Alamos National Laboratory (LANL). The target filling system provides DT-filled glass targets for the U.S. National ICF Program. Tritium storage, purification, mixing, analysis, and high pressure capabilities at WETF are used to provide DT at pressures up to 400 atm to a target filling cell that can operate at temperatures to 400{degree}C. Isotopically pure tritium is obtained from the Tritium Systems Test Assembly at LANL, and typically has purities of 99% tritium or better. At WETF, a palladium-silver diffuser is used for removal of decay {sup 3}He from tritium prior to mixing with deuterium. After preparation, DT mixtures are stored in a passivated volume to minimize impurity accumulation from stainless steel. Analysis of tritium and DT mixtures is performed with a quadrupole mass spectrometer/beta scintillation detector system that utilizes an analytical technique previously developed at LANL to provide hydrogen isotope, helium, and impurity analysis. Glass targets are filled in aluminum eggcrates. The target filling cell has been designed to contain two eggcrates while maintaining isothermal conditions across the eggcrates during diffusion filling of targets. Results from a cryogenic condensation technique performed at Lawrence Livermore National Laboratory have confirmed the fill pressures. 3 refs., 5 figs., 1 tab.

• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 447359
• Report Number(s): CONF-9606116--
• Journal Information: Fusion Technology, Journal Name: Fusion Technology Journal Issue: 3 Vol. 30; ISSN 0748-1896; ISSN FUSTE8
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALUMINIUM
DEUTERIUM
DIFFUSION
GAS ANALYSIS
GLASS
HELIUM 3
ICF DEVICES
LANL
LASER TARGETS
LAWRENCE LIVERMORE NATIONAL LABORATORY
MASS SPECTROMETERS
NUMERICAL DATA
PURIFICATION
SAMPLE PREPARATION
STAINLESS STEELS
THERMONUCLEAR FUELS
TRITIUM SYSTEMS TEST ASSEMBLY
TRITIUM TARGET