Generation of X-ray radiation from a plasma in a microchannel of a copper target located in the air under the action of soft-focused femtosecond laser pulses with an intensity of 100 TW cm{sup −2}

We have studied the dependence of X-ray radiation yield in the range of more than 3 keV from a microchannel in a copper target on the laser pulse number at a (0.7 – 4.0) × 10{sup 14} W cm{sup −2} intensities of femtosecond laser radiation. A technique for estimating the intensity of laser radiation...

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Bibliographic Details
Published inQuantum electronics (Woodbury, N.Y.) Vol. 48; no. 7
Main Authors Garmatina, A. A., Zhvaniya, I. A., Potemkin, F. V., Gordienko, V. M.
Format Journal Article
LanguageEnglish
Published United States 01.01.2018
Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BREMSSTRAHLUNG
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COPPER
FILAMENTS
LASER RADIATION
LASERS
PLASMA
PULSES
X RADIATION
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Summary:We have studied the dependence of X-ray radiation yield in the range of more than 3 keV from a microchannel in a copper target on the laser pulse number at a (0.7 – 4.0) × 10{sup 14} W cm{sup −2} intensities of femtosecond laser radiation. A technique for estimating the intensity of laser radiation acting on the target using the slope of the X-ray bremsstrahlung spectrum is proposed. A possibility of using this technique for estimating the intensity in a femtosecond laser filament is considered. (interaction of laser radiation with matter. laser plasma)
ISSN:1063-7818
DOI:10.1070/QEL16674