Ultrashort X-Ray Probe Backlighting For Implosion Fusion Experiments

C. Yamanaka; N. Miyanaga; K. Imasaki; Y. Kitagawa; Y. Kato; M. Nakatsuka; T. Mochizuki; T. Yamanaka

doi:10.1117/12.967835

1 March 1983 Ultrashort X-Ray Probe Backlighting For Implosion Fusion Experiments

C. Yamanaka, N. Miyanaga, K. Imasaki, Y. Kitagawa, Y. Kato, M. Nakatsuka, T. Mochizuki, T. Yamanaka

Proceedings Volume 0348, 15th Intl Congress on High Speed Photography and Photonics; (1983) https://doi.org/10.1117/12.967835
Event: 15th International Congress on High Speed Photography and Photonics, 1982, San Diego, United States

Abstract

Two X-ray backlighting techniques have been developed to diagnose the laser-imploded fusion targets. One is the multi-color backlighting for the targets consisting of various materials. The implosion dynamics of a double shell target, which consisted of a parylene outer shell and a glass inner shell, was investigated by using 1.2 keV and 2.6 keV X-ray source and a couple of pinhole cameras. The other is the application of a point X-ray source to the plasma diagnostics. It has many advantages in comparison with the usual back-lighting with a extended source. The new backlighting methods were tested through (1) a simple backlighting without any X-ray optics, (2) the measurement of X-ray refraction due to steep-gradient, high-density plasma, and (3) the spectrally resolved backlighting of planar targets combining with a flat crystal spectrometer.

Citation Download Citation

C. Yamanaka, N. Miyanaga, K. Imasaki, Y. Kitagawa, Y. Kato, M. Nakatsuka, T. Mochizuki, and T. Yamanaka "Ultrashort X-Ray Probe Backlighting For Implosion Fusion Experiments", Proc. SPIE 0348, 15th Intl Congress on High Speed Photography and Photonics, (1 March 1983); https://doi.org/10.1117/12.967835

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