New target designs for direct-drive ICF

Lee Phillips; John H. Gardner; Stephen E. Bodner; Denis Colombant; S. P. Obenschain; A. J. Schmitt; Jill P. Dahlburg; Tom Lehecka; Marcel Klapisch; Avraham Bar-Shalom

doi:10.1017/S0263034699172082

New target designs for direct-drive ICF

Lee Phillips
, John H. Gardner
, Stephen E. Bodner
, Denis Colombant
, S. P. Obenschain
, A. J. Schmitt
, Jill P. Dahlburg
, Tom Lehecka
, Marcel Klapisch
, Avraham Bar-Shalom

Research output: Contribution to journal › Conference article › peer-review

10 Scopus citations

Abstract

We describe two approaches to the design of a direct-drive high-gain pellet for inertial confinement fusion reactors that has enhanced stability due to the reduction in the Rayleigh-Taylor growth rate and enhanced thermal smoothing of laser imprint. The first design incorporates an overcoat containing a high-Z element that radiatively heats the ablator during the foot of the laser pulse. The second incorporates a very low density foam ablator that is compressed by a series of transmitted and reflected shocks. Both designs enhance thermal smoothing by developing a very long density scale length and high electron densities in the ablator blowoff.

Original language	English
Pages (from-to)	225-235
Number of pages	11
Journal	Laser and Particle Beams
Volume	17
Issue number	2
DOIs	https://doi.org/10.1017/S0263034699172082
State	Published - 1999
Externally published	Yes
Event	Proceedings of the 1998 25th European Conference on Laser Interaction with Matter (ECLIM'98) - Laser and Particle Beams - - Formia, Italy Duration: 4 May 1999 → 8 May 1999

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

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10.1017/S0263034699172082

Cite this

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title = "New target designs for direct-drive ICF",

abstract = "We describe two approaches to the design of a direct-drive high-gain pellet for inertial confinement fusion reactors that has enhanced stability due to the reduction in the Rayleigh-Taylor growth rate and enhanced thermal smoothing of laser imprint. The first design incorporates an overcoat containing a high-Z element that radiatively heats the ablator during the foot of the laser pulse. The second incorporates a very low density foam ablator that is compressed by a series of transmitted and reflected shocks. Both designs enhance thermal smoothing by developing a very long density scale length and high electron densities in the ablator blowoff.",

author = "Lee Phillips and Gardner, \{John H.\} and Bodner, \{Stephen E.\} and Denis Colombant and Obenschain, \{S. P.\} and Schmitt, \{A. J.\} and Dahlburg, \{Jill P.\} and Tom Lehecka and Marcel Klapisch and Avraham Bar-Shalom",

year = "1999",

doi = "10.1017/S0263034699172082",

language = "אנגלית",

volume = "17",

pages = "225--235",

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issn = "0263-0346",

publisher = "Chinese Laser Press",

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note = "Proceedings of the 1998 25th European Conference on Laser Interaction with Matter (ECLIM'98) - Laser and Particle Beams - ; Conference date: 04-05-1999 Through 08-05-1999",

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T1 - New target designs for direct-drive ICF

AU - Phillips, Lee

AU - Gardner, John H.

AU - Bodner, Stephen E.

AU - Colombant, Denis

AU - Obenschain, S. P.

AU - Schmitt, A. J.

AU - Dahlburg, Jill P.

AU - Lehecka, Tom

AU - Klapisch, Marcel

AU - Bar-Shalom, Avraham

PY - 1999

Y1 - 1999

N2 - We describe two approaches to the design of a direct-drive high-gain pellet for inertial confinement fusion reactors that has enhanced stability due to the reduction in the Rayleigh-Taylor growth rate and enhanced thermal smoothing of laser imprint. The first design incorporates an overcoat containing a high-Z element that radiatively heats the ablator during the foot of the laser pulse. The second incorporates a very low density foam ablator that is compressed by a series of transmitted and reflected shocks. Both designs enhance thermal smoothing by developing a very long density scale length and high electron densities in the ablator blowoff.

AB - We describe two approaches to the design of a direct-drive high-gain pellet for inertial confinement fusion reactors that has enhanced stability due to the reduction in the Rayleigh-Taylor growth rate and enhanced thermal smoothing of laser imprint. The first design incorporates an overcoat containing a high-Z element that radiatively heats the ablator during the foot of the laser pulse. The second incorporates a very low density foam ablator that is compressed by a series of transmitted and reflected shocks. Both designs enhance thermal smoothing by developing a very long density scale length and high electron densities in the ablator blowoff.

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DO - 10.1017/S0263034699172082

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JO - Laser and Particle Beams

JF - Laser and Particle Beams

IS - 2

T2 - Proceedings of the 1998 25th European Conference on Laser Interaction with Matter (ECLIM'98) - Laser and Particle Beams -

Y2 - 4 May 1999 through 8 May 1999

ER -

New target designs for direct-drive ICF

Abstract

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