Development of 4.5 keV monochromatic X-ray radiography using the high-energy, picosecond LFEX laser
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Authors
Sawada, H.
Fujioka, Shinsuke
Hosoda, T.
Zhang, Z.
Arikawa, Yasunobu
Nagatomo, Hideo
Nishimura, Hiroaki
Sunahara, A.
Theobald, W.
Patel, P. K.
Issue Date
2016
Type
Article
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Abstract
Development of a monochromatic x-ray imaging system using a high-energy short-pulse laser LFEX and a spherical crystal is reported. Irradiation of the intense short-pulse laser produces a flash of 4.51 keV Ti K-alpha x-ray while the spherically bent quartz crystal provides a narrow spectral bandwidth and high spatial resolution. This high spatiotemporal imaging technique was applied for recording 2-D monochromatic x-ray images of laser-driven Fast Ignition targets. The results show a sufficiently high spatial resolution to characterize the implosion core, suggesting that the core information extracted from the radiograph images can be used to benchmark a 2-D radiation-hydrodynamic code for accurate hydrodynamic modelling and optimization of FI fuel assembly in the asymmetrical implosion.
Description
Citation
H Sawada et al 2016 J. Phys.: Conf. Ser. 717 012112
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Creative Commons Attribution 3.0 Unported
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ISSN
1742-6588