Electron-density measurements in hohlraums using soft-x-ray deflectometry

C. D. Decker; R. A. London; J. A. Harte; L. V. Powers; J. E. Trebes

Electron-density measurements in hohlraums using soft-x-ray deflectometry

C. D. Decker, R. A. London, J. A. Harte, L. V. Powers, J. E. Trebes

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

Abstract

This paper presents design calculations for experiments that measure electron densities of laser heated hohlraums with soft-x-ray moiré deflectometry. Hydrodynamical simulations of the hohlraums are analyzed to obtain deflection angles of the probing beam and x-ray emission from the hohlraum. The deflection angles and resulting moiré fringe shifts and fringe contrast are predicted to be sufficient to infer electron-density gradients from measurements. In addition, the self-emission is found to be much lower than that of the probing laser beam, giving a good signal-to-noise ratio. In conclusion, moiré deflectometry with soft-x-ray lasers has the potential to give valuable information about the electron density in laser driven hohlraums.

Original language	English (US)
Pages (from-to)	5952-5957
Number of pages	6
Journal	Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume	57
Issue number	5 SUPPL. B
State	Published - May 1998
Externally published	Yes

ASJC Scopus subject areas

Mathematical Physics
Physics and Astronomy(all)
Condensed Matter Physics
Statistical and Nonlinear Physics

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title = "Electron-density measurements in hohlraums using soft-x-ray deflectometry",

abstract = "This paper presents design calculations for experiments that measure electron densities of laser heated hohlraums with soft-x-ray moir{\'e} deflectometry. Hydrodynamical simulations of the hohlraums are analyzed to obtain deflection angles of the probing beam and x-ray emission from the hohlraum. The deflection angles and resulting moir{\'e} fringe shifts and fringe contrast are predicted to be sufficient to infer electron-density gradients from measurements. In addition, the self-emission is found to be much lower than that of the probing laser beam, giving a good signal-to-noise ratio. In conclusion, moir{\'e} deflectometry with soft-x-ray lasers has the potential to give valuable information about the electron density in laser driven hohlraums.",

author = "Decker, {C. D.} and London, {R. A.} and Harte, {J. A.} and Powers, {L. V.} and Trebes, {J. E.}",

year = "1998",

month = may,

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volume = "57",

pages = "5952--5957",

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T1 - Electron-density measurements in hohlraums using soft-x-ray deflectometry

AU - Decker, C. D.

AU - London, R. A.

AU - Harte, J. A.

AU - Powers, L. V.

AU - Trebes, J. E.

PY - 1998/5

Y1 - 1998/5

N2 - This paper presents design calculations for experiments that measure electron densities of laser heated hohlraums with soft-x-ray moiré deflectometry. Hydrodynamical simulations of the hohlraums are analyzed to obtain deflection angles of the probing beam and x-ray emission from the hohlraum. The deflection angles and resulting moiré fringe shifts and fringe contrast are predicted to be sufficient to infer electron-density gradients from measurements. In addition, the self-emission is found to be much lower than that of the probing laser beam, giving a good signal-to-noise ratio. In conclusion, moiré deflectometry with soft-x-ray lasers has the potential to give valuable information about the electron density in laser driven hohlraums.

AB - This paper presents design calculations for experiments that measure electron densities of laser heated hohlraums with soft-x-ray moiré deflectometry. Hydrodynamical simulations of the hohlraums are analyzed to obtain deflection angles of the probing beam and x-ray emission from the hohlraum. The deflection angles and resulting moiré fringe shifts and fringe contrast are predicted to be sufficient to infer electron-density gradients from measurements. In addition, the self-emission is found to be much lower than that of the probing laser beam, giving a good signal-to-noise ratio. In conclusion, moiré deflectometry with soft-x-ray lasers has the potential to give valuable information about the electron density in laser driven hohlraums.

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Electron-density measurements in hohlraums using soft-x-ray deflectometry

Abstract

ASJC Scopus subject areas

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