X-ray emission from stainless steel foils irradiated by femtosecond petawatt laser pulses

M. A. Alkhimova, A. Ya Faenov, T. A. Pikuz, I. Yu Skobelev, S. A. Pikuz, M. Nishiuchi, H. Sakaki, A. S. Pirozhkov, S. Sagisaka, N. P. Dover, Ko Kondo, K. Ogura, Y. Fukuda, H. Kiriyama, T. Esirkepov, S. V. Bulanov, A. Andreev, M. Kando, A. Zhidkov, K. NishitaniT. Miyahara, Y. Watanabe, R. Kodama, K. Kondo

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Abstract

We report about nonlinear growth of x-ray emission intensity emitted from plasma generated by femtosecond petawatt laser pulses irradiating stainless steel foils. X-ray emission intensity increases as ∼ I 4.5 with laser intensity I on a target. High spectrally resolved x-ray emission from front and rear surfaces of 5 μm thickness stainless steel targets were obtained at the wavelength range 1.7-2.1 Å, for the first time in experiments at femtosecond petawatt laser facility J-KAREN-P. Total intensity of front x-ray spectra three times dominates to rear side spectra for maximum laser intensity I ≈ 3.21021 W/cm2. Growth of x-ray emission is mostly determined by contribution of bremsstrahlung radiation that allowed estimating bulk electron plasma temperature for various magnitude of laser intensity on target.

Original languageEnglish
Article number012018
JournalJournal of Physics: Conference Series
Volume946
Issue number1
DOIs
Publication statusPublished - Feb 23 2018
Event32nd International Conference on Interaction of Intense Energy Fluxes with Matter, ELBRUS 2017 - Elbrus, Kabardino-Balkaria, Russian Federation
Duration: Mar 1 2017Mar 6 2017

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Alkhimova, M. A., Faenov, A. Y., Pikuz, T. A., Skobelev, I. Y., Pikuz, S. A., Nishiuchi, M., Sakaki, H., Pirozhkov, A. S., Sagisaka, S., Dover, N. P., Kondo, K., Ogura, K., Fukuda, Y., Kiriyama, H., Esirkepov, T., Bulanov, S. V., Andreev, A., Kando, M., Zhidkov, A., ... Kondo, K. (2018). X-ray emission from stainless steel foils irradiated by femtosecond petawatt laser pulses. Journal of Physics: Conference Series, 946(1), [012018]. https://doi.org/10.1088/1742-6596/946/1/012018