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Title: Picosecond time-resolved measurements of dense plasma line shifts

Journal Article · · Physical Review E
 [1];  [1];  [1];  [2];  [1];  [1];  [3]
  1. Univ. of Rochester, Rochester, NY (United States). Lab. for Laser Energetics
  2. Prism Computational Sciences, Madison, WI (United States)
  3. Univ. of Rochester, Rochester, NY (United States). Lab. for Laser Energetics and Dept. of Physics and Astronomy

Picosecond time-resolved x-ray spectroscopy is used to measure the spectral line shift of the 1s2p–1s2 transition in He-like Al ions as a function of the instantaneous plasma conditions. The plasma temperature and density are inferred from the Al Heα complex using a nonlocal-thermodynamic-equilibrium atomic physics model. The experimental spectra show a linearly increasing red shift for electron densities of 1 to 5 × 1023 cm–3. Furthermore, the measured line shifts are broadly consistent with a generalized analytic line-shift model based on calculations of a self-consistent field ion sphere model.

Research Organization:
Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0001944
OSTI ID:
1372100
Alternate ID(s):
OSTI ID: 1363842
Report Number(s):
2017-1, 1345; PLEEE8; 2017-1, 2300, 1345
Journal Information:
Physical Review E, Vol. 95, Issue 6; ISSN 2470-0045
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 30 works
Citation information provided by
Web of Science

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Cited By (3)

Challenges of x-ray spectroscopy in investigations of matter under extreme conditions journal March 2019
Ionization potential depression in an atomic-solid-plasma picture journal April 2018
High-resolution measurements of Cl 15 + line shifts in hot, solid-density plasmas journal July 2019

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