Second harmonic x-ray irradiation from weakly ionized linear ferrum plasma

Eiichi Sato; Rudolf Germer; Toshiyuki Enomoto; Etsuro Tanaka; Toshiaki Kawai; Mitsuru Izumisawa; Koetsu Sato; Akira Ogawa; Shigehiro Sato; Kazuyoshi Takayama

doi:10.1117/12.823076

10 February 2009 Second harmonic x-ray irradiation from weakly ionized linear ferrum plasma

Eiichi Sato, Rudolf Germer, Toshiyuki Enomoto, Etsuro Tanaka, Toshiaki Kawai, Mitsuru Izumisawa, Koetsu Sato, Akira Ogawa, Shigehiro Sato, Kazuyoshi Takayama

Author Affiliations +

Proceedings Volume 7126, 28th International Congress on High-Speed Imaging and Photonics; 71261J (2009) https://doi.org/10.1117/12.823076
Event: 28th International Congress on High-Speed Imaging and Photonics, 2008, Canberra, Australia

Abstract

In the plasma flash x-ray generator, a 200 nF condenser is charged up to 50 kV by a power supply, and flash x-rays are produced by the discharging. The x-ray tube is a demountable triode with a trigger electrode, and the turbomolecular pump evacuates air from the tube with a pressure of approximately 1 mPa. Target evaporation leads to the formation of weakly ionized linear plasma, consisting of ferrum ions and electrons, around the fine target, and intense K-series characteristic x-rays are produced from the plasma axial direction. At a charging voltage of 50 kV, the maximum tube voltage was almost equal to the charging voltage of the main condenser, and the peak current was about 15 kA. In the spectral measurement, Kβ rays were intense, and higher harmonic x-rays were observed. The pulse widths were 0.5 μs, and the maximum x-ray intensity was approximately 300 μGy.

Citation Download Citation

Eiichi Sato, Rudolf Germer, Toshiyuki Enomoto, Etsuro Tanaka, Toshiaki Kawai, Mitsuru Izumisawa, Koetsu Sato, Akira Ogawa, Shigehiro Sato, and Kazuyoshi Takayama "Second harmonic x-ray irradiation from weakly ionized linear ferrum plasma", Proc. SPIE 7126, 28th International Congress on High-Speed Imaging and Photonics, 71261J (10 February 2009); https://doi.org/10.1117/12.823076

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