Enhancement of high energy X-ray radiography using compound parabolic concentrator targets
Journal Article
·
· High Energy Density Physics
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- 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.
- 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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