Dynamic stabilization of the ablative Rayleigh-Taylor instability for heavy ion fusion

Hong Qin; Ronald C. Davidson; B. Grant Logan

doi:10.1016/j.nima.2013.05.068

Dynamic stabilization of the ablative Rayleigh-Taylor instability for heavy ion fusion

Hong Qin, Ronald C. Davidson, B. Grant Logan

PPPL Computational Science

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3 Scopus citations

Abstract

Dynamic stabilization of the ablative Rayleigh-Taylor instability of a heavy ion fusion target induced by a beam wobbling system is studied. Using a sharp-boundary model and Courant-Synder theory, it is shown, with an appropriately chosen modulation waveform, that the instability can be stabilized in certain parameter regimes. It is found that the stabilization effect has a strong dependence on the modulation frequency and the waveform. Modulation with frequency comparable to the instability growth rate is most effective in terms of stabilizing the instability. A modulation with two frequency components can result in a reduction of the growth rate larger than the sum of that due to the two components when applied separately.

Original language	English (US)
Pages (from-to)	203-206
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	733
DOIs	https://doi.org/10.1016/j.nima.2013.05.068
State	Published - Jan 1 2014

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Instrumentation

Keywords

Dynamics stabilization
Heavy ion fusion
Wobbler

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10.1016/j.nima.2013.05.068

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title = "Dynamic stabilization of the ablative Rayleigh-Taylor instability for heavy ion fusion",

abstract = "Dynamic stabilization of the ablative Rayleigh-Taylor instability of a heavy ion fusion target induced by a beam wobbling system is studied. Using a sharp-boundary model and Courant-Synder theory, it is shown, with an appropriately chosen modulation waveform, that the instability can be stabilized in certain parameter regimes. It is found that the stabilization effect has a strong dependence on the modulation frequency and the waveform. Modulation with frequency comparable to the instability growth rate is most effective in terms of stabilizing the instability. A modulation with two frequency components can result in a reduction of the growth rate larger than the sum of that due to the two components when applied separately.",

keywords = "Dynamics stabilization, Heavy ion fusion, Wobbler",

author = "Hong Qin and Davidson, \{Ronald C.\} and Logan, \{B. Grant\}",

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doi = "10.1016/j.nima.2013.05.068",

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journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

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Dynamic stabilization of the ablative Rayleigh-Taylor instability for heavy ion fusion. / Qin, Hong; Davidson, Ronald C.; Logan, B. Grant.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 733, 01.01.2014, p. 203-206.

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

TY - JOUR

T1 - Dynamic stabilization of the ablative Rayleigh-Taylor instability for heavy ion fusion

AU - Qin, Hong

AU - Davidson, Ronald C.

AU - Logan, B. Grant

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Dynamic stabilization of the ablative Rayleigh-Taylor instability of a heavy ion fusion target induced by a beam wobbling system is studied. Using a sharp-boundary model and Courant-Synder theory, it is shown, with an appropriately chosen modulation waveform, that the instability can be stabilized in certain parameter regimes. It is found that the stabilization effect has a strong dependence on the modulation frequency and the waveform. Modulation with frequency comparable to the instability growth rate is most effective in terms of stabilizing the instability. A modulation with two frequency components can result in a reduction of the growth rate larger than the sum of that due to the two components when applied separately.

AB - Dynamic stabilization of the ablative Rayleigh-Taylor instability of a heavy ion fusion target induced by a beam wobbling system is studied. Using a sharp-boundary model and Courant-Synder theory, it is shown, with an appropriately chosen modulation waveform, that the instability can be stabilized in certain parameter regimes. It is found that the stabilization effect has a strong dependence on the modulation frequency and the waveform. Modulation with frequency comparable to the instability growth rate is most effective in terms of stabilizing the instability. A modulation with two frequency components can result in a reduction of the growth rate larger than the sum of that due to the two components when applied separately.

KW - Dynamics stabilization

KW - Heavy ion fusion

KW - Wobbler

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U2 - 10.1016/j.nima.2013.05.068

DO - 10.1016/j.nima.2013.05.068

M3 - Article

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SN - 0168-9002

VL - 733

SP - 203

EP - 206

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

Dynamic stabilization of the ablative Rayleigh-Taylor instability for heavy ion fusion

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