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Title: Fabrication of cryogenic inertial-confinement-fusion targets using target free-fall technique. Report No. 2-82

Abstract

Techniques for fabricating cryogenic inertial confinement fusion targets (i.e., spherical shells containing a uniform layer of DT ice) are investigated using target free-fall concept. Detection and characterization of the moving targets are effected by optoelectronic means, of which the principal is an RF ac-interferometer. This interferometer system demonstrates, for the first time, the speed capabilities of the phase-modulation ac-interferometry. New techiques developed for handling, holding, launching, and transporting targets are also described. Results obtained at both room and cryogenic temperatures are presented.

Authors:
;
Publication Date:
Research Org.:
Illinois Univ., Urbana (USA). Charged Particle Research Lab.
OSTI Identifier:
6765223
Alternate Identifier(s):
OSTI ID: 6765223; Legacy ID: DE83000598
Report Number(s):
UCRL-15463
ON: DE83000598
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; LASER TARGETS; FABRICATION; CRYOGENICS; FUEL PELLETS; INTERFEROMETERS; MATERIALS HANDLING; MEASURING INSTRUMENTS; PELLETS; TARGETS 060201* -- Fusion Fuels-- Fabrication & Testing-- (1980-1987)

Citation Formats

Kim, K., and Murphy, M.J.. Fabrication of cryogenic inertial-confinement-fusion targets using target free-fall technique. Report No. 2-82. United States: N. p., 1982. Web. doi:10.2172/6765223.
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Kim, K., & Murphy, M.J.. Fabrication of cryogenic inertial-confinement-fusion targets using target free-fall technique. Report No. 2-82. United States. doi:10.2172/6765223.
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Kim, K., and Murphy, M.J.. Thu . "Fabrication of cryogenic inertial-confinement-fusion targets using target free-fall technique. Report No. 2-82". United States. doi:10.2172/6765223. https://www.osti.gov/servlets/purl/6765223.
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@article{osti_6765223,
title = {Fabrication of cryogenic inertial-confinement-fusion targets using target free-fall technique. Report No. 2-82},
author = {Kim, K. and Murphy, M.J.},
abstractNote = {Techniques for fabricating cryogenic inertial confinement fusion targets (i.e., spherical shells containing a uniform layer of DT ice) are investigated using target free-fall concept. Detection and characterization of the moving targets are effected by optoelectronic means, of which the principal is an RF ac-interferometer. This interferometer system demonstrates, for the first time, the speed capabilities of the phase-modulation ac-interferometry. New techiques developed for handling, holding, launching, and transporting targets are also described. Results obtained at both room and cryogenic temperatures are presented.},
doi = {10.2172/6765223},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Apr 01 00:00:00 EST 1982},
month = {Thu Apr 01 00:00:00 EST 1982}
}
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Technical Report:
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DOI:  10.2172/6765223
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    A new technique has been developed which is capable of fabricating uniform cryogenic targets for use in inertial confinement fusion. The essence of the technique is to directly wet a target with a cold helium gas jet, which results in freezing of the DT mixture contained in the target. A controlled amount of current is pulsed through a heater wire surrounding the target, giving rise to fast evaporation and refreezing of the DT-condensate into a uniform layer. Experiments, which have been performed with D/sub 2/-filled glass microshells, successfully produce uniform layers of both liquid and solid D/sub 2/ inside themore » glass shells. A set of data illustrating the technique is presented and analyzed.« less

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  • ; ; ; ... - Journal of Vacuum Science and Technology, A
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