Foam shell project: Progress report
- Lawrence Livermore National Lab., CA (United States)
- WJSA (United States)
The authors report on their work to produce a foam shell target for two possible applications: (1) as liquid-layered cryogenic target on Omega Upgrade, and (2) as a back-up design for the NIF. This target consists of a roughly 1 mm diameter and 100 {mu}m thick spherical low-density foam shell surrounding a central void. The foam will be slightly overfilled with liquid D{sub 2} or DT, the overfilled excess being symmetrically distributed on the inside of the shell and supported by thermal gradient techniques. The outside of the foam is overcoated with full density polymer which must be topologically smooth. The technology for manufacturing this style of foam shell involves microencapsulation techniques and has been developed by the Japanese at ILE. Their goal is to determine whether this technology can be successfully adapted to meet US ICF objectives. To this end a program of foam shell development has been initiated at LLNL in collaboration with both the General Atomics DOE Target Fabrication Contract Corporation and the Target Fabrication Group at LLE.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 10150267
- Report Number(s):
- UCRL-ID--116779; ON: DE94011642
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700411
700460
CRYOGENICS
DEUTERIUM
DEUTERIUM TRITIDE
ENCAPSULATION
FABRICATION
FOAMS
FUELS
HEATING AND FUELING SYSTEMS
INERTIAL CONFINEMENT
INERTIAL CONFINEMENT DEVICES
LASER TARGETS
OMEGA FACILITY
POLYMERIZATION
PROGRESS REPORT
TECHNOLOGY ASSESSMENT
THERMONUCLEAR FUELS