Update for the Drag Force on an Injected Pellet and Target Fabrication for Inertial Fusion

To create a conceptual design of a tracking system of a target injected into a wet-walled, laser-fusion reactor, the influence of residual gas on the target trajectory is discussed based on a kinetic model, assuming all of the impinging molecules are adsorbed on the target surface. The model targets...

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Bibliographic Details
Published in:Fusion science and technology 2003-05, Vol.43 (3), p.339-345
Main Authors: Norimatsu, Takayoshi, Nagai, Keiji, Takeda, Tetsuji, Mima, Kunioki, Yamanaka, Tatsuhiko
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CONES
DESIGN
FABRICATION
FUEL PELLETS
GAIN
ICF DEVICES
INERTIAL CONFINEMENT
INERTIAL FUSION DRIVERS
LASER FUSION REACTORS
LASERS
MOLECULES
PLASMA HEATING
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Summary:To create a conceptual design of a tracking system of a target injected into a wet-walled, laser-fusion reactor, the influence of residual gas on the target trajectory is discussed based on a kinetic model, assuming all of the impinging molecules are adsorbed on the target surface. The model targets are a high-gain target for central ignition and a fast-ignition target with a cone as an optical guide for an additional heating laser. In the case of a fast-ignition target, tracking in the reactor might be skipped, depending on its condition, because of the heavy cone. Recent activities in fabrication of the fast-ignition target are briefly mentioned.
ISSN:1536-1055
1943-7641
DOI:10.13182/FST03-A276