Measurements of suprathermal electrons in hohlraum plasmas with x-ray spectroscopy

S. H. Glenzer; F. B. Rosmej; R. W. Lee; C. A. Back; K. G. Estabrook; B. J. MacGowan; T. D. Shepard; R. E. Turner

doi:10.1103/PhysRevLett.81.365

Measurements of suprathermal electrons in hohlraum plasmas with x-ray spectroscopy

S. H. Glenzer
, F. B. Rosmej
, R. W. Lee
, C. A. Back
, K. G. Estabrook
, B. J. MacGowan
, T. D. Shepard
, R. E. Turner

Lawrence Livermore National Laboratory
Ruhr-University Bochum

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

49 Citations (Scopus)

Abstract

Nonthermal excitation of atomic states by suprathermal electrons was observed for the first time within inertial confinement fusion hohlraum plasmas. The nonthermal excitation process results in the simultaneous emission of the Ly-α transition and the K-shell satellite series (lithiumlike through carbonlike) which were observed on temporally resolved x-ray emission spectra. A quantitative analysis with a time-dependent collisional-radiative non-Maxwellian model shows that these spectra can be used to obtain temporally and spatially resolved measurements of the suprathermal electron fraction in indirectly driven inertial confinement fusion targets.

Original language	English
Pages (from-to)	365-368
Number of pages	4
Journal	Physical Review Letters
Volume	81
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.81.365
Publication status	Published - 13 Jul 1998
Externally published	Yes

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10.1103/PhysRevLett.81.365

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title = "Measurements of suprathermal electrons in hohlraum plasmas with x-ray spectroscopy",

abstract = "Nonthermal excitation of atomic states by suprathermal electrons was observed for the first time within inertial confinement fusion hohlraum plasmas. The nonthermal excitation process results in the simultaneous emission of the Ly-α transition and the K-shell satellite series (lithiumlike through carbonlike) which were observed on temporally resolved x-ray emission spectra. A quantitative analysis with a time-dependent collisional-radiative non-Maxwellian model shows that these spectra can be used to obtain temporally and spatially resolved measurements of the suprathermal electron fraction in indirectly driven inertial confinement fusion targets.",

author = "Glenzer, \{S. H.\} and Rosmej, \{F. B.\} and Lee, \{R. W.\} and Back, \{C. A.\} and Estabrook, \{K. G.\} and MacGowan, \{B. J.\} and Shepard, \{T. D.\} and Turner, \{R. E.\}",

year = "1998",

month = jul,

day = "13",

doi = "10.1103/PhysRevLett.81.365",

language = "English",

volume = "81",

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journal = "Physical Review Letters",

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T1 - Measurements of suprathermal electrons in hohlraum plasmas with x-ray spectroscopy

AU - Glenzer, S. H.

AU - Rosmej, F. B.

AU - Lee, R. W.

AU - Back, C. A.

AU - Estabrook, K. G.

AU - MacGowan, B. J.

AU - Shepard, T. D.

AU - Turner, R. E.

PY - 1998/7/13

Y1 - 1998/7/13

N2 - Nonthermal excitation of atomic states by suprathermal electrons was observed for the first time within inertial confinement fusion hohlraum plasmas. The nonthermal excitation process results in the simultaneous emission of the Ly-α transition and the K-shell satellite series (lithiumlike through carbonlike) which were observed on temporally resolved x-ray emission spectra. A quantitative analysis with a time-dependent collisional-radiative non-Maxwellian model shows that these spectra can be used to obtain temporally and spatially resolved measurements of the suprathermal electron fraction in indirectly driven inertial confinement fusion targets.

AB - Nonthermal excitation of atomic states by suprathermal electrons was observed for the first time within inertial confinement fusion hohlraum plasmas. The nonthermal excitation process results in the simultaneous emission of the Ly-α transition and the K-shell satellite series (lithiumlike through carbonlike) which were observed on temporally resolved x-ray emission spectra. A quantitative analysis with a time-dependent collisional-radiative non-Maxwellian model shows that these spectra can be used to obtain temporally and spatially resolved measurements of the suprathermal electron fraction in indirectly driven inertial confinement fusion targets.

UR - https://www.scopus.com/pages/publications/0032514088

U2 - 10.1103/PhysRevLett.81.365

DO - 10.1103/PhysRevLett.81.365

M3 - Article

AN - SCOPUS:0032514088

SN - 0031-9007

VL - 81

SP - 365

EP - 368

JO - Physical Review Letters

JF - Physical Review Letters

IS - 2

ER -

Measurements of suprathermal electrons in hohlraum plasmas with x-ray spectroscopy

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