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Title: Foam shell project: Progress report

Abstract

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.

Authors:
; ;  [1];  [2]
  1. Lawrence Livermore National Lab., CA (United States)
  2. WJSA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10150267
Report Number(s):
UCRL-ID-116779
ON: DE94011642; TRN: 94:012007
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 25 Mar 1994
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; OMEGA FACILITY; LASER TARGETS; FABRICATION; INERTIAL CONFINEMENT; FOAMS; THERMONUCLEAR FUELS; DEUTERIUM; DEUTERIUM TRITIDE; ENCAPSULATION; TECHNOLOGY ASSESSMENT; CRYOGENICS; PROGRESS REPORT; POLYMERIZATION; 700411; 700460; INERTIAL CONFINEMENT DEVICES; HEATING AND FUELING SYSTEMS; FUELS

Citation Formats

Overturf, G, Reibold, B, Cook, B, and Schroen-Carey, D. Foam shell project: Progress report. United States: N. p., 1994. Web. doi:10.2172/10150267.
Overturf, G, Reibold, B, Cook, B, & Schroen-Carey, D. Foam shell project: Progress report. United States. https://doi.org/10.2172/10150267
Overturf, G, Reibold, B, Cook, B, and Schroen-Carey, D. Fri . "Foam shell project: Progress report". United States. https://doi.org/10.2172/10150267. https://www.osti.gov/servlets/purl/10150267.
@article{osti_10150267,
title = {Foam shell project: Progress report},
author = {Overturf, G and Reibold, B and Cook, B and Schroen-Carey, D},
abstractNote = {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.},
doi = {10.2172/10150267},
url = {https://www.osti.gov/biblio/10150267}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {3}
}