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Title: Multiple shell fusion targets

Abstract

Multiple shell fusion targets for use with electron beam and ion beam implosion systems are described. The multiple shell targets are of the low-power type and use a separate relatively low Z, low density ablator at large radius for the outer shell, which reduces the focusing and power requirements of the implosion system while maintaining reasonable aspect ratios. The targets use a high Z, high density pusher shell placed at a much smaller radius in order to obtain an aspect ratio small enough to protect against fluid instability. Velocity multiplication between these shells further lowers the power requirements. Careful tuning of the power profile and intershell density results in a low entropy implosion which allows breakeven at low powers. For example, with ion beams as a power source, breakeven at 10-20 Terrawatts with 10 MeV alpha particles for imploding a multiple shell target can be accomplished.

Inventors:
;
Issue Date:
OSTI Identifier:
7323028
Assignee:
Energy Research and Development Administration
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; THERMONUCLEAR FUELS; SPECIFICATIONS; ABLATION; ELECTRON BEAMS; FOCUSING; IMPLOSIONS; ION BEAMS; SHELLS; TARGETS; BEAMS; FUELS; LEPTON BEAMS; PARTICLE BEAMS; 700205* - Fusion Power Plant Technology- Fuel, Heating, & Injection Systems

Citation Formats

Lindl, J D, and Bangerter, R O. Multiple shell fusion targets. United States: N. p., 1975. Web.
Lindl, J D, & Bangerter, R O. Multiple shell fusion targets. United States.
Lindl, J D, and Bangerter, R O. Fri . "Multiple shell fusion targets". United States.
@article{osti_7323028,
title = {Multiple shell fusion targets},
author = {Lindl, J D and Bangerter, R O},
abstractNote = {Multiple shell fusion targets for use with electron beam and ion beam implosion systems are described. The multiple shell targets are of the low-power type and use a separate relatively low Z, low density ablator at large radius for the outer shell, which reduces the focusing and power requirements of the implosion system while maintaining reasonable aspect ratios. The targets use a high Z, high density pusher shell placed at a much smaller radius in order to obtain an aspect ratio small enough to protect against fluid instability. Velocity multiplication between these shells further lowers the power requirements. Careful tuning of the power profile and intershell density results in a low entropy implosion which allows breakeven at low powers. For example, with ion beams as a power source, breakeven at 10-20 Terrawatts with 10 MeV alpha particles for imploding a multiple shell target can be accomplished.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1975},
month = {10}
}