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Title: Implementation of a Talbot–Lau x-ray deflectometer diagnostic platform for the OMEGA EP laser

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.5123919· OSTI ID:1604067
 [1];  [1];  [2];  [2];  [2];  [3];  [4];  [2]; ORCiD logo [5]; ORCiD logo [6];  [7]; ORCiD logo [7];  [2]
  1. Johns Hopkins Univ., Baltimore, MD (United States)
  2. Univ. of Rochester, NY (United States). Lab. for Laser Energetics
  3. General Atomics, San Diego, CA (United States)
  4. Microworks GmbH, Karlsruhe (Germany)
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  6. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  7. Univ. of Michigan, Ann Arbor, MI (United States)

A Talbot–Lau X-ray Deflectometer (TXD) was implemented in the OMEGA EP laser facility to characterize the evolution of an irradiated foil ablation front by mapping electron densities >1022 cm-3 by means of Moiré deflectometry. The experiment used a short-pulse laser (30–100 J, 10 ps) and a foil copper target as an x-ray backlighter source. In the first experimental tests performed to benchmark the diagnostic platform, grating survival was demonstrated and x-ray backlighter laser parameters that deliver Moiré images were described. Finally, the necessary modifications to accurately probe the ablation front through TXD using the EP-TXD diagnostic platform are discussed.

Research Organization:
Johns Hopkins Univ., Baltimore, MD (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0003882; NA0002955; NA0003526; NA0002956; 89233218CNA000001; AC04-94AL85000
OSTI ID:
1604067
Alternate ID(s):
OSTI ID: 1650622; OSTI ID: 1781576
Report Number(s):
LA-UR-19-28670; SAND-2021-5076J; TRN: US2104192
Journal Information:
Review of Scientific Instruments, Vol. 91, Issue 2; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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Proof-of-concept Talbot–Lau x-ray interferometry with a high-intensity, high-repetition-rate, laser-driven K-alpha source journal January 2020

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