Enhancement of thermal smoothing effect on laser imprint with soft X-ray radiation

N. Ohnishi; H. Nagatomo; H. Takabe; H. Nishimura; M. Nishikino; H. Shiraga; T. Yamanaka

doi:10.1143/jjap.40.1435

Enhancement of thermal smoothing effect on laser imprint with soft X-ray radiation

N. Ohnishi, H. Nagatomo, H. Takabe, H. Nishimura, M. Nishikino, H. Shiraga, T. Yamanaka

ENG - Aerospace Engineering

Osaka University

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The initial imprint of mass perturbation due to spatial nonuniformity of laser intensity is one of the most important issues in laser fusion research. Several imprint mitigation schemes by the use of soft X-ray radiation have been proposed to enhance the thermal smoothing effect within the conduction region. One of the schemes uses external X-ray irradiation prior to laser incidence to produce preformed plasma. Another has a low-density foam layer and high-Z material to heat the foam radiatively and make it uniform in density.

Original language	English
Pages (from-to)	1435-1442
Number of pages	8
Journal	Japanese Journal of Applied Physics
Volume	40
Issue number	3 A
DOIs	https://doi.org/10.1143/jjap.40.1435
Publication status	Published - 2001 Mar

Keywords

Hydrodynamic instability
Inertial confinement fusion
Integrated code
Laser imprint
Radiation hydrodynamics
Shock wave
X-ray radiation

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10.1143/jjap.40.1435

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title = "Enhancement of thermal smoothing effect on laser imprint with soft X-ray radiation",

abstract = "The initial imprint of mass perturbation due to spatial nonuniformity of laser intensity is one of the most important issues in laser fusion research. Several imprint mitigation schemes by the use of soft X-ray radiation have been proposed to enhance the thermal smoothing effect within the conduction region. One of the schemes uses external X-ray irradiation prior to laser incidence to produce preformed plasma. Another has a low-density foam layer and high-Z material to heat the foam radiatively and make it uniform in density.",

keywords = "Hydrodynamic instability, Inertial confinement fusion, Integrated code, Laser imprint, Radiation hydrodynamics, Shock wave, X-ray radiation",

author = "N. Ohnishi and H. Nagatomo and H. Takabe and H. Nishimura and M. Nishikino and H. Shiraga and T. Yamanaka",

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T1 - Enhancement of thermal smoothing effect on laser imprint with soft X-ray radiation

AU - Ohnishi, N.

AU - Nagatomo, H.

AU - Takabe, H.

AU - Nishimura, H.

AU - Nishikino, M.

AU - Shiraga, H.

AU - Yamanaka, T.

PY - 2001/3

Y1 - 2001/3

N2 - The initial imprint of mass perturbation due to spatial nonuniformity of laser intensity is one of the most important issues in laser fusion research. Several imprint mitigation schemes by the use of soft X-ray radiation have been proposed to enhance the thermal smoothing effect within the conduction region. One of the schemes uses external X-ray irradiation prior to laser incidence to produce preformed plasma. Another has a low-density foam layer and high-Z material to heat the foam radiatively and make it uniform in density.

AB - The initial imprint of mass perturbation due to spatial nonuniformity of laser intensity is one of the most important issues in laser fusion research. Several imprint mitigation schemes by the use of soft X-ray radiation have been proposed to enhance the thermal smoothing effect within the conduction region. One of the schemes uses external X-ray irradiation prior to laser incidence to produce preformed plasma. Another has a low-density foam layer and high-Z material to heat the foam radiatively and make it uniform in density.

KW - Hydrodynamic instability

KW - Inertial confinement fusion

KW - Integrated code

KW - Laser imprint

KW - Radiation hydrodynamics

KW - Shock wave

KW - X-ray radiation

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JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

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ER -

Enhancement of thermal smoothing effect on laser imprint with soft X-ray radiation

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Keywords

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