Hot Spot Evolution Measured by High-Resolution X-Ray Spectroscopy at the National Ignition Facility

Lan Gao; B. F. Kraus; K. W. Hill; M. B. Schneider; A. Christopherson; B. Bachmann; M. Bitter; P. Efthimion; N. Pablant; R. Betti; C. Thomas; D. Thorn; A. G. Macphee; S. Khan; R. Kauffman; D. Liedahl; H. Chen; D. Bradley; J. Kilkenny; B. Lahmann; E. Stambulchik; Y. Maron

doi:10.1103/PhysRevLett.128.185002

Hot Spot Evolution Measured by High-Resolution X-Ray Spectroscopy at the National Ignition Facility

Lan Gao, B. F. Kraus, K. W. Hill, M. B. Schneider, A. Christopherson, B. Bachmann, M. Bitter, P. Efthimion, N. Pablant, R. Betti, C. Thomas, D. Thorn, A. G. Macphee, S. Khan, R. Kauffman, D. Liedahl, H. Chen, D. Bradley, J. Kilkenny, B. LahmannE. Stambulchik, Y. Maron

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

17 Scopus citations

Abstract

Evolution of the hot spot plasma conditions was measured using high-resolution x-ray spectroscopy at the National Ignition Facility. The capsules were filled with DD gas with trace levels of Kr and had either a high-density-carbon (HDC) ablator or a tungsten (W)-doped HDC ablator. Time-resolved measurement of the Kr Heβ spectra, absolutely calibrated by a simultaneous time-integrated measurement, allows inference of the electron density and temperature through observing Stark broadening and the relative intensities of dielectronic satellites. By matching the calculated hot spot emission using a collisional-radiative code to experimental observations, the hot spot size and areal density are determined. These advanced spectroscopy techniques further reveal the effect of W dopant in the ablator on the hot spot parameters for their improved implosion performance.

Original language	English (US)
Article number	185002
Journal	Physical review letters
Volume	128
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.128.185002
State	Published - May 6 2022

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.128.185002

Cite this

Gao, L., Kraus, B. F., Hill, K. W., Schneider, M. B., Christopherson, A., Bachmann, B., Bitter, M., Efthimion, P., Pablant, N., Betti, R., Thomas, C., Thorn, D., Macphee, A. G., Khan, S., Kauffman, R., Liedahl, D., Chen, H., Bradley, D., Kilkenny, J., ... Maron, Y. (2022). Hot Spot Evolution Measured by High-Resolution X-Ray Spectroscopy at the National Ignition Facility. Physical review letters, 128(18), Article 185002. https://doi.org/10.1103/PhysRevLett.128.185002

@article{eefbefbc12b6467985f4038a0c89e8ed,

title = "Hot Spot Evolution Measured by High-Resolution X-Ray Spectroscopy at the National Ignition Facility",

abstract = "Evolution of the hot spot plasma conditions was measured using high-resolution x-ray spectroscopy at the National Ignition Facility. The capsules were filled with DD gas with trace levels of Kr and had either a high-density-carbon (HDC) ablator or a tungsten (W)-doped HDC ablator. Time-resolved measurement of the Kr Heβ spectra, absolutely calibrated by a simultaneous time-integrated measurement, allows inference of the electron density and temperature through observing Stark broadening and the relative intensities of dielectronic satellites. By matching the calculated hot spot emission using a collisional-radiative code to experimental observations, the hot spot size and areal density are determined. These advanced spectroscopy techniques further reveal the effect of W dopant in the ablator on the hot spot parameters for their improved implosion performance.",

author = "Lan Gao and Kraus, \{B. F.\} and Hill, \{K. W.\} and Schneider, \{M. B.\} and A. Christopherson and B. Bachmann and M. Bitter and P. Efthimion and N. Pablant and R. Betti and C. Thomas and D. Thorn and Macphee, \{A. G.\} and S. Khan and R. Kauffman and D. Liedahl and H. Chen and D. Bradley and J. Kilkenny and B. Lahmann and E. Stambulchik and Y. Maron",

note = "Publisher Copyright: {\textcopyright} 2022 American Physical Society.",

year = "2022",

month = may,

day = "6",

doi = "10.1103/PhysRevLett.128.185002",

language = "English (US)",

volume = "128",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "18",

}

Gao, L , Kraus, BF, Hill, KW, Schneider, MB, Christopherson, A, Bachmann, B, Bitter, M, Efthimion, P , Pablant, N, Betti, R, Thomas, C, Thorn, D, Macphee, AG, Khan, S, Kauffman, R, Liedahl, D, Chen, H, Bradley, D, Kilkenny, J, Lahmann, B, Stambulchik, E & Maron, Y 2022, 'Hot Spot Evolution Measured by High-Resolution X-Ray Spectroscopy at the National Ignition Facility', Physical review letters, vol. 128, no. 18, 185002. https://doi.org/10.1103/PhysRevLett.128.185002

TY - JOUR

T1 - Hot Spot Evolution Measured by High-Resolution X-Ray Spectroscopy at the National Ignition Facility

AU - Gao, Lan

AU - Kraus, B. F.

AU - Hill, K. W.

AU - Schneider, M. B.

AU - Christopherson, A.

AU - Bachmann, B.

AU - Bitter, M.

AU - Efthimion, P.

AU - Pablant, N.

AU - Betti, R.

AU - Thomas, C.

AU - Thorn, D.

AU - Macphee, A. G.

AU - Khan, S.

AU - Kauffman, R.

AU - Liedahl, D.

AU - Chen, H.

AU - Bradley, D.

AU - Kilkenny, J.

AU - Lahmann, B.

AU - Stambulchik, E.

AU - Maron, Y.

PY - 2022/5/6

Y1 - 2022/5/6

N2 - Evolution of the hot spot plasma conditions was measured using high-resolution x-ray spectroscopy at the National Ignition Facility. The capsules were filled with DD gas with trace levels of Kr and had either a high-density-carbon (HDC) ablator or a tungsten (W)-doped HDC ablator. Time-resolved measurement of the Kr Heβ spectra, absolutely calibrated by a simultaneous time-integrated measurement, allows inference of the electron density and temperature through observing Stark broadening and the relative intensities of dielectronic satellites. By matching the calculated hot spot emission using a collisional-radiative code to experimental observations, the hot spot size and areal density are determined. These advanced spectroscopy techniques further reveal the effect of W dopant in the ablator on the hot spot parameters for their improved implosion performance.

AB - Evolution of the hot spot plasma conditions was measured using high-resolution x-ray spectroscopy at the National Ignition Facility. The capsules were filled with DD gas with trace levels of Kr and had either a high-density-carbon (HDC) ablator or a tungsten (W)-doped HDC ablator. Time-resolved measurement of the Kr Heβ spectra, absolutely calibrated by a simultaneous time-integrated measurement, allows inference of the electron density and temperature through observing Stark broadening and the relative intensities of dielectronic satellites. By matching the calculated hot spot emission using a collisional-radiative code to experimental observations, the hot spot size and areal density are determined. These advanced spectroscopy techniques further reveal the effect of W dopant in the ablator on the hot spot parameters for their improved implosion performance.

UR - https://www.scopus.com/pages/publications/85130114369

UR - https://www.scopus.com/inward/citedby.url?scp=85130114369&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.128.185002

DO - 10.1103/PhysRevLett.128.185002

M3 - Article

C2 - 35594117

AN - SCOPUS:85130114369

SN - 0031-9007

VL - 128

JO - Physical review letters

JF - Physical review letters

IS - 18

M1 - 185002

ER -

Hot Spot Evolution Measured by High-Resolution X-Ray Spectroscopy at the National Ignition Facility

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this