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Title: Energy transfer dynamics in strongly inhomogeneous hot-dense-matter systems

Abstract

Direct measurements of energy transfer across steep density and temperature gradients in a hot-dense-matter system are presented. Hot dense plasma conditions were generated by high-intensity laser irradiation of a thin-foil target containing a buried metal layer. Energy transfer to the layer was measured using picosecond time-resolved x-ray emission spectroscopy. Here, the data show two x-ray flashes in time. Fully explicit, coupled particle-in-cell and collisional-radiative atomic kinetics model predictions reproduce these observations, connecting the two x-ray flashes with staged radial energy transfer within the target.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Univ. of Rochester, Rochester, NY (United States)
Publication Date:
Research Org.:
Univ. of Rochester, Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
OSTI Identifier:
1457145
Alternate Identifier(s):
OSTI ID: 1457082
Report Number(s):
2017-259, 1410
Journal ID: ISSN 2470-0045; PLEEE8; 2017-259, 1410, 2367; TRN: US1901306
Grant/Contract Number:  
NA0001944; SC-0012317
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review E
Additional Journal Information:
Journal Volume: 97; Journal Issue: 6; Journal ID: ISSN 2470-0045
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Stillman, C. R., Nilson, P. M., Sefkow, A. B., Ivancic, S. T., Mileham, C., Begishev, I. A., and Froula, D. H. Energy transfer dynamics in strongly inhomogeneous hot-dense-matter systems. United States: N. p., 2018. Web. doi:10.1103/PhysRevE.97.063208.
Stillman, C. R., Nilson, P. M., Sefkow, A. B., Ivancic, S. T., Mileham, C., Begishev, I. A., & Froula, D. H. Energy transfer dynamics in strongly inhomogeneous hot-dense-matter systems. United States. doi:10.1103/PhysRevE.97.063208.
Stillman, C. R., Nilson, P. M., Sefkow, A. B., Ivancic, S. T., Mileham, C., Begishev, I. A., and Froula, D. H. Mon . "Energy transfer dynamics in strongly inhomogeneous hot-dense-matter systems". United States. doi:10.1103/PhysRevE.97.063208.
@article{osti_1457145,
title = {Energy transfer dynamics in strongly inhomogeneous hot-dense-matter systems},
author = {Stillman, C. R. and Nilson, P. M. and Sefkow, A. B. and Ivancic, S. T. and Mileham, C. and Begishev, I. A. and Froula, D. H.},
abstractNote = {Direct measurements of energy transfer across steep density and temperature gradients in a hot-dense-matter system are presented. Hot dense plasma conditions were generated by high-intensity laser irradiation of a thin-foil target containing a buried metal layer. Energy transfer to the layer was measured using picosecond time-resolved x-ray emission spectroscopy. Here, the data show two x-ray flashes in time. Fully explicit, coupled particle-in-cell and collisional-radiative atomic kinetics model predictions reproduce these observations, connecting the two x-ray flashes with staged radial energy transfer within the target.},
doi = {10.1103/PhysRevE.97.063208},
journal = {Physical Review E},
issn = {2470-0045},
number = 6,
volume = 97,
place = {United States},
year = {2018},
month = {6}
}

Journal Article:
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Works referenced in this record:

Laser Compression of Matter to Super-High Densities: Thermonuclear (CTR) Applications
journal, September 1972

  • Nuckolls, John; Wood, Lowell; Thiessen, Albert
  • Nature, Vol. 239, Issue 5368, p. 139-142
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