15-19 April 2018
Paradise Point Resort & Spa
America/Los_Angeles timezone

10.19 Multi-frame radiography using the Crystal Backlighter Imager coupled to a new Single Line of Sight camera on the National Ignition Facility

18 Apr 2018, 10:30
2h 31m
Paradise Point Resort & Spa

Paradise Point Resort & Spa

1404 Vacation Rd, San Diego, CA 92109

Speakers

Gareth Hall (Lawrence Livermore National Laboratory) Christine Krauland (General Atomics) Sabrina Nagel (Lawrence Livermore National Laboratory) Justin Buscho (Lawrence Livermore National Laboratory) Nathaniel Thompson (Lawrence Livermore National Laboratory) Arthur Carpenter (Lawrence Livermore National Laboratory) Matthew Dayton (Lawrence Livermore National Laboratory) Robin Hibbard (Lawrence Livermore National Laboratory) Perry Bell (Lawrence Livermore National Laboratory) David Bradley (Lawrence Livermore National Laboratory) Otto Landen (Lawrence Livermore National Laboratory) Shannon Ayers (Lawrence Livermore National Laboratory) Thomas McCarville (Lawrence Livermore National Laboratory) Benjamin Hatch (Lawrence Livermore National Laboratory) Joe Holder (Lawrence Livermore National Laboratory) Emily Hurd (Lawrence Livermore National Laboratory) Daniel Kalantar (Lawrence Livermore National Laboratory) Thomas Kohut (Lawrence Livermore National Laboratory) Roger Lowe-Webb (Lawrence Livermore National Laboratory) Robert Petre (Lawrence Livermore National Laboratory) Kenneth Piston (Lawrence Livermore National Laboratory) Kyle Engelhorn (General Atomics) Terance Hilsabeck (General Atomics)

Description

The Crystal Backlighter Imager (CBI) is a monochromatic x-ray radiography diagnostic developed with the goal of imaging the late stages of inertial confinement fusion implosions on the NIF. Initially, CBI could only provide a single radiograph per crystal x-ray optic per experiment given the use of a microchannel plate camera as the detector. The Single-Line-of-Sight (SLOS) framing camera is a transformative diagnostic that records a sequence (2-4) of fast-gated (100-35ps) x-ray images along the same line of sight. CBI has recently been coupled to SLOS, which increased the data output to multiple radiographs from a single crystal x-ray optic per NIF shot. Results will be presented from several experiments used to commission the coupling of CBI to SLOS. Spatial resolution as a function of backlighter standoff was measured by radiographing test objects. Timing calibration was achieved by comparing SLOS radiographs to one from the microchannel plate camera, whose timing was known to high accuracy, on two nominally-identical capsule implosions shots. Lawrence Livermore National Laboratory is operated by Lawrence Livermore National Security, LLC, for the U.S. Department of Energy, National Nuclear Security Administration under Contract DE-AC52-07NA27344. Release # LLNL-ABS-744383.

Primary author

Gareth Hall (Lawrence Livermore National Laboratory)

Co-authors

Christine Krauland (General Atomics) Sabrina Nagel (Lawrence Livermore National Laboratory) Justin Buscho (Lawrence Livermore National Laboratory) Nathaniel Thompson (Lawrence Livermore National Laboratory) Arthur Carpenter (Lawrence Livermore National Laboratory) Matthew Dayton (Lawrence Livermore National Laboratory) Robin Hibbard (Lawrence Livermore National Laboratory) Perry Bell (Lawrence Livermore National Laboratory) David Bradley (Lawrence Livermore National Laboratory) Otto Landen (Lawrence Livermore National Laboratory) Shannon Ayers (Lawrence Livermore National Laboratory) Thomas McCarville (Lawrence Livermore National Laboratory) Benjamin Hatch (Lawrence Livermore National Laboratory) Joe Holder (Lawrence Livermore National Laboratory) Emily Hurd (Lawrence Livermore National Laboratory) Daniel Kalantar (Lawrence Livermore National Laboratory) Thomas Kohut (Lawrence Livermore National Laboratory) Roger Lowe-Webb (Lawrence Livermore National Laboratory) Robert Petre (Lawrence Livermore National Laboratory) Kenneth Piston (Lawrence Livermore National Laboratory) Kyle Engelhorn (General Atomics) Terance Hilsabeck (General Atomics)

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