A high-resolution x-ray microscope for laser-driven planar-foil experiments

Journal Article · Wed Apr 01 04:00:00 EST 1998 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.872642· OSTI ID:625849

Marshall, F J; Allen, M M; Knauer, J P ^[1]; Oertel, J A; Archuleta, T ^[2]

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1. Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)
2. Los Alamos National Laboratory, Los Alamos, New Mexico87545 (United States)

A soft x-ray microscope (E{approx_lt}3keV) with high spatial resolution ({approximately}3{mu}m) has been characterized at the University of Rochester{close_quote}s Laboratory for Laser Energetics and used for initial experiments on the Omega laser system [Boehly {ital et al.}, Opt. Commun. {bold 133}, 495 (1997)] to study the hydrodynamic stability of directly driven planar foils. The microscope, which is an optimized Kirkpatrick{endash}Baez-type design, is used to obtain four x-ray radiographs of laser-driven foils. Time-resolved images are obtained with either custom-built framing cameras (time resolution {approximately}80ps) or by using short-pulse backlighter beams ({Delta}t{approx_lt}200ps). In the former case, a spatial resolution of {approximately}7{mu}m was obtained (limited by the framing camera), while in the latter case a resolution of {approximately}3{mu}m was obtained. This paper details the testing, calibration, and initial use of this microscope in the laboratory and on Omega. {copyright} {ital 1998 American Institute of Physics.}

• OSTI ID: 625849
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 4 Vol. 5; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CALIBRATION
FOILS
HYDRODYNAMICS
IMAGES
LASER-PRODUCED PLASMA
MICROSCOPY
PLASMA DIAGNOSTICS
PLASMA INSTABILITY
SOFT X RADIATION
STABILITY
TESTING
X-RAY RADIOGRAPHY