Ultrafast one- and two-dimensional x-ray imaging by use of x-ray streak cameras with one- and two-dimensional image-sampling technique

Hiroyuki Shiraga; Manabu Heya; Shinsuke Fujioka; Noriaki Miyanaga; Masaaki Matsuoka; Hiroshi Azechi; Tatsuhiko Yamanaka

doi:10.1117/12.424297

17 April 2001 Ultrafast one- and two-dimensional x-ray imaging by use of x-ray streak cameras with one- and two-dimensional image-sampling technique

Hiroyuki Shiraga, Manabu Heya, Shinsuke Fujioka, Noriaki Miyanaga, Masaaki Matsuoka, Hiroshi Azechi, Tatsuhiko Yamanaka

Author Affiliations +

Proceedings Volume 4183, 24th International Congress on High-Speed Photography and Photonics; (2001) https://doi.org/10.1117/12.424297
Event: 24th International Congress on High-Speed Photography and Photonics, 2000, Sendai, Japan

Abstract

Ultra-fast x-ray imaging is of great importance for diagnosing laser-driven inertial confinement fusion (ICF) plasmas. Typical required spatial and temporal resolutions are 10 micrometer and 10 ps, respectively. We have developed variety of one- (1D) and two-dimensional (2D) image sampling technique for ultrafast time-resolved x-ray imaging with x-ray streak cameras. Moire imaging of an x-ray-backlit target has been developed as 1D image sampling of an objective with 1D repetitive structure with a spatial resolution of 5 micrometer for use in experiments on hydrodynamic instabilities in laser- accelerated targets. With 1D sampling of repetitive 2D images, a multi-imaging x-ray streak camera (MIXS) with temporal- and spatial-resolutions of 10 ps and 15 micrometer, respectively, has been developed and successfully utilized for diagnosing uniformity and heating process of the imploded core plasmas. Two types of spectroscopic applications of the MIXS have been developed. One is multi-channel MIXS (McMIXS) which has three MIXS channels with various spectral responses for time- resolved 2D temperature measurement. Another is monochromatic MIXS (M-MIXS) for temperature, density and material mixing measurement, in which monochromatic images with Bragg crystals are coupled to MIXS. Finally, 2D image sampling of a 2D image on an x-ray streak camera (2D-SIXS) was also developed.

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Hiroyuki Shiraga, Manabu Heya, Shinsuke Fujioka, Noriaki Miyanaga, Masaaki Matsuoka, Hiroshi Azechi, and Tatsuhiko Yamanaka "Ultrafast one- and two-dimensional x-ray imaging by use of x-ray streak cameras with one- and two-dimensional image-sampling technique", Proc. SPIE 4183, 24th International Congress on High-Speed Photography and Photonics, (17 April 2001); https://doi.org/10.1117/12.424297

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KEYWORDS

X-rays

X-ray imaging

Streak cameras

Plasmas

Picosecond phenomena

Spatial resolution

Image fusion

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