Enhancement of high energy X-ray radiography using compound parabolic concentrator targets

King, P. M.; Rusby, D.; Hannasch, A.; Lemos, N.; Tiwari, G.; Pak, A.; Kerr, S.; Cochran, G.; Pagano, I.; Williams, G. J.; Khan, S. F.; Aufderheide, M.; Kemp, A.; Wilks, S.; Macphee, A.; Albert, F.; Hegelich, B. M.; Downer, M.; Manuel, M.; Gavin, Z.; Haid, A.; Mackinnon, A.

doi:10.1016/j.hedp.2022.100978

Title: Enhancement of high energy X-ray radiography using compound parabolic concentrator targets

Journal Article · Sat Apr 09 00:00:00 EDT 2022 · High Energy Density Physics

DOI:https://doi.org/10.1016/j.hedp.2022.100978· OSTI ID:1883450

^[1]; Rusby, D. ^[2]; Hannasch, A. ^[3]; Lemos, N. ^[2];

^[4]; Pak, A. ^[2];

^[2];

^[3];

^[2]; Khan, S. F. ^[2]; Aufderheide, M. ^[2]; Kemp, A. ^[2]; Wilks, S. ^[2]; Macphee, A. ^[2]; Albert, F. ^[2];

^[3]; Downer, M. ^[3]; Manuel, M. ^[5];

^[5] more »

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of Texas, Austin, TX (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Univ. of Texas, Austin, TX (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)
General Atomics, San Diego, CA (United States)

We report an increase in MeV energy bremsstrahlung x-ray production using compound parabolic concentrators (CPC) compared to flat solid targets during relativistic laser-plasma experiments on a 140 J, 150 fs laser system using an f/40 focusing optic. CPC enhanced targets show a > 3x increase in high energy x-ray production over planar foil targets. Furthermore, this enhancement in x-ray energy spectra shows a direct improvement in the radiography of an image quality indicator (IQI) object with a 20 g/cm² areal density.

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

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: AC52-07NA27344; SC002112; NA0001808; 19-SI-002; SCW1575-1

OSTI ID:: 1883450

Alternate ID(s):: OSTI ID: 1962234

Report Number(s):: LLNL-JRNL-818617; 1029209; TRN: US2308003

Journal Information:: High Energy Density Physics, Vol. 42; ISSN 1574-1818

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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