Observation of a reflected shock in an indirectly driven spherical implosion at the National Ignition Facility

S. Le Pape; L. Divol; L. Berzak Hopkins; A. Mackinnon; N. B. Meezan; D. Casey; J. Frenje; H. Herrmann; J. McNaney; T. Ma; K. Widmann; A. Pak; G. Grimm; J. Knauer; R. Petrasso; A. Zylstra; H. Rinderknecht; M. Rosenberg; M. Gatu-Johnson; J. D. Kilkenny

doi:10.1103/PhysRevLett.112.225002

Observation of a reflected shock in an indirectly driven spherical implosion at the National Ignition Facility

S. Le Pape
, L. Divol
, L. Berzak Hopkins
, A. Mackinnon
, N. B. Meezan
, D. Casey
, J. Frenje
, H. Herrmann
, J. McNaney
, T. Ma
, K. Widmann
, A. Pak
, G. Grimm
, J. Knauer
, R. Petrasso
, A. Zylstra
, H. Rinderknecht
, M. Rosenberg
, M. Gatu-Johnson
, J. D. Kilkenny

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

76 Scopus citations

Abstract

A 200μm radius hot spot at more than 2 keV temperature, 1g/cm3 density has been achieved on the National Ignition Facility using a near vacuum hohlraum. The implosion exhibits ideal one-dimensional behavior and 99% laser-to-hohlraum coupling. The low opacity of the remaining shell at bang time allows for a measurement of the x-ray emission of the reflected central shock in a deuterium plasma. Comparison with 1D hydrodynamic simulations puts constraints on electron-ion collisions and heat conduction. Results are consistent with classical (Spitzer-Harm) heat flux.

Original language	English (US)
Article number	225002
Journal	Physical review letters
Volume	112
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.112.225002
State	Published - Jun 4 2014
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.112.225002

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Le Pape, S., Divol, L., Berzak Hopkins, L., Mackinnon, A., Meezan, N. B., Casey, D., Frenje, J., Herrmann, H., McNaney, J., Ma, T., Widmann, K., Pak, A., Grimm, G., Knauer, J., Petrasso, R., Zylstra, A., Rinderknecht, H., Rosenberg, M., Gatu-Johnson, M., & Kilkenny, J. D. (2014). Observation of a reflected shock in an indirectly driven spherical implosion at the National Ignition Facility. Physical review letters, 112(22), Article 225002. https://doi.org/10.1103/PhysRevLett.112.225002

@article{e20a4c7ba85e4cc1b6531b87f668348e,

title = "Observation of a reflected shock in an indirectly driven spherical implosion at the National Ignition Facility",

abstract = "A 200μm radius hot spot at more than 2 keV temperature, 1g/cm3 density has been achieved on the National Ignition Facility using a near vacuum hohlraum. The implosion exhibits ideal one-dimensional behavior and 99\% laser-to-hohlraum coupling. The low opacity of the remaining shell at bang time allows for a measurement of the x-ray emission of the reflected central shock in a deuterium plasma. Comparison with 1D hydrodynamic simulations puts constraints on electron-ion collisions and heat conduction. Results are consistent with classical (Spitzer-Harm) heat flux.",

author = "\{Le Pape\}, S. and L. Divol and \{Berzak Hopkins\}, L. and A. Mackinnon and Meezan, \{N. B.\} and D. Casey and J. Frenje and H. Herrmann and J. McNaney and T. Ma and K. Widmann and A. Pak and G. Grimm and J. Knauer and R. Petrasso and A. Zylstra and H. Rinderknecht and M. Rosenberg and M. Gatu-Johnson and Kilkenny, \{J. D.\}",

year = "2014",

month = jun,

day = "4",

doi = "10.1103/PhysRevLett.112.225002",

language = "English (US)",

volume = "112",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "22",

}

Le Pape, S, Divol, L, Berzak Hopkins, L, Mackinnon, A, Meezan, NB, Casey, D, Frenje, J, Herrmann, H, McNaney, J, Ma, T, Widmann, K, Pak, A, Grimm, G, Knauer, J, Petrasso, R, Zylstra, A, Rinderknecht, H, Rosenberg, M, Gatu-Johnson, M & Kilkenny, JD 2014, 'Observation of a reflected shock in an indirectly driven spherical implosion at the National Ignition Facility', Physical review letters, vol. 112, no. 22, 225002. https://doi.org/10.1103/PhysRevLett.112.225002

TY - JOUR

T1 - Observation of a reflected shock in an indirectly driven spherical implosion at the National Ignition Facility

AU - Le Pape, S.

AU - Divol, L.

AU - Berzak Hopkins, L.

AU - Mackinnon, A.

AU - Meezan, N. B.

AU - Casey, D.

AU - Frenje, J.

AU - Herrmann, H.

AU - McNaney, J.

AU - Ma, T.

AU - Widmann, K.

AU - Pak, A.

AU - Grimm, G.

AU - Knauer, J.

AU - Petrasso, R.

AU - Zylstra, A.

AU - Rinderknecht, H.

AU - Rosenberg, M.

AU - Gatu-Johnson, M.

AU - Kilkenny, J. D.

PY - 2014/6/4

Y1 - 2014/6/4

N2 - A 200μm radius hot spot at more than 2 keV temperature, 1g/cm3 density has been achieved on the National Ignition Facility using a near vacuum hohlraum. The implosion exhibits ideal one-dimensional behavior and 99% laser-to-hohlraum coupling. The low opacity of the remaining shell at bang time allows for a measurement of the x-ray emission of the reflected central shock in a deuterium plasma. Comparison with 1D hydrodynamic simulations puts constraints on electron-ion collisions and heat conduction. Results are consistent with classical (Spitzer-Harm) heat flux.

AB - A 200μm radius hot spot at more than 2 keV temperature, 1g/cm3 density has been achieved on the National Ignition Facility using a near vacuum hohlraum. The implosion exhibits ideal one-dimensional behavior and 99% laser-to-hohlraum coupling. The low opacity of the remaining shell at bang time allows for a measurement of the x-ray emission of the reflected central shock in a deuterium plasma. Comparison with 1D hydrodynamic simulations puts constraints on electron-ion collisions and heat conduction. Results are consistent with classical (Spitzer-Harm) heat flux.

UR - https://www.scopus.com/pages/publications/84902202012

UR - https://www.scopus.com/pages/publications/84902202012#tab=citedBy

U2 - 10.1103/PhysRevLett.112.225002

DO - 10.1103/PhysRevLett.112.225002

M3 - Article

AN - SCOPUS:84902202012

SN - 0031-9007

VL - 112

JO - Physical review letters

JF - Physical review letters

IS - 22

M1 - 225002

ER -

Observation of a reflected shock in an indirectly driven spherical implosion at the National Ignition Facility

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