Short pulse, high resolution, backlighters for point projection high-energy radiography at the National Ignition Facility

Tommasini, R.; Bailey, C.; Bradley, D. K.; Bowers, M.; Chen, H.; Di Nicola, J. M.; Di Nicola, P.; Gururangan, G.; Hall, G. N.; Hardy, C. M.; Hargrove, D.; Hermann, M.; Hohenberger, M.; Holder, J. P.; Hsing, W.; Izumi, N.; Kalantar, D.; Khan, S.; Kroll, J.; Landen, O. L.; Lawson, J.; Martinez, D.; Masters, N.; Nafziger, J. R.; Nagel, S. R.; Nikroo, A.; Okui, J.; Palmer, D.; Sigurdsson, R.; Vonhof, S.; Wallace, R. J.; Zobrist, T.

doi:10.1063/1.4983137

Title: Short pulse, high resolution, backlighters for point projection high-energy radiography at the National Ignition Facility

Journal Article · Tue May 09 00:00:00 EDT 2017 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4983137· OSTI ID:1361877

Tommasini, R. ^[1]; Bailey, C. ^[1]; Bradley, D. K. ^[1]; Bowers, M. ^[1]; Chen, H. ^[1]; Di Nicola, J. M. ^[1]; Di Nicola, P. ^[1]; Gururangan, G. ^[1];

^[1]; Hardy, C. M. ^[1]; Hargrove, D. ^[1]; Hermann, M. ^[1];

^[1]; Holder, J. P. ^[1]; Hsing, W. ^[1]; Izumi, N. ^[1]; Kalantar, D. ^[1]; Khan, S. ^[1]; Kroll, J. ^[1];

^[1] more »

Lawrence Livermore National Laboratory, Livermore, California 94550, USA

High-resolution, high-energy X-ray backlighters are very active area of research for radiography experiments at the National Ignition Facility (NIF) [Miller et al., Nucl. Fusion 44, S228 (2004)], in particular those aiming at obtaining Compton-scattering produced radiographs from the cold, dense fuel surrounding the hot spot. We report on experiments to generate and characterize point-projection-geometry backlighters using short pulses from the advanced radiographic capability (ARC) [Crane et al., J. Phys. 244, 032003 (2010); Di Nicola et al., Proc. SPIE 2015, 93450I-12], at the NIF, focused on Au micro-wires. We show the first hard X-ray radiographs, at photon energies exceeding 60 keV, of static objects obtained with 30 ps-long ARC laser pulses, and the measurements of strength of the X-ray emission, the pulse duration and the source size of the Au micro-wire backlighters. For the latter, a novel technique has been developed and successfully applied.

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Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1361877

Alternate ID(s):: OSTI ID: 1374520; OSTI ID: 1421174

Report Number(s):: LLNL-JRNL-734514; PHPAEN; 10.1063/1.4983137

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Vol. 24 Journal Issue: 5; ISSN 1070-664X

Publisher:: American Institute of PhysicsCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 37 works

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References (11)

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Characterization of fast electron divergence and energy spectrum from modeling of angularly resolved bremsstrahlung measurements Daykin, T. S.; Sawada, H.; Sentoku, Y. Physics of Plasmas, Vol. 25, Issue 12 https://doi.org/10.1063/1.5055257	journal	December 2018
Development of broadband x-ray radiography for diagnosing magnetically driven cylindrically compressed matter Sawada, H.; Daykin, T. S.; Hutchinson, T. M. Physics of Plasmas, Vol. 26, Issue 8 https://doi.org/10.1063/1.5100173	journal	August 2019
Bremsstrahlung hard x-ray source driven by an electron beam from a self-modulated laser wakefield accelerator Lemos, N.; Albert, F.; Shaw, J. L. Plasma Physics and Controlled Fusion, Vol. 60, Issue 5 https://doi.org/10.1088/1361-6587/aab3b5	journal	March 2018
Betatron x-ray radiation in the self-modulated laser wakefield acceleration regime: prospects for a novel probe at large scale laser facilities Albert, F.; Lemos, N.; Shaw, J. L. Nuclear Fusion, Vol. 59, Issue 3 https://doi.org/10.1088/1741-4326/aad058	journal	December 2018
Progress of indirect drive inertial confinement fusion in the United States Kline, J. L.; Batha, S. H.; Benedetti, L. R. Nuclear Fusion, Vol. 59, Issue 11 https://doi.org/10.1088/1741-4326/ab1ecf	journal	July 2019
X-ray penumbral imaging diagnostic developments at the National Ignition Facility Felker, Sean J.; Bachmann, Benjamin; Abu Shawareb, Hatim Target Diagnostics Physics and Engineering for Inertial Confinement Fusion VI https://doi.org/10.1117/12.2274611	conference	September 2017

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Title: Short pulse, high resolution, backlighters for point projection high-energy radiography at the National Ignition Facility

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