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Sub-femtosecond hard X-ray radiation generated by electron bunches ejected from water jet

Published online by Cambridge University Press:  04 September 2013

N. Zhavoronkov*
Affiliation:
Max-Born-Institute, Berlin, German
A. Andreev
Affiliation:
Max-Born-Institute, Berlin, German Vavilov State Instutute, St. Petersburg, Russia
K. Platonov
Affiliation:
Vavilov State Instutute, St. Petersburg, Russia
*
Address correspondence and reprint requests to: N. Zhavoronkov, Max-Born-Institute, Max-Born-Str. 2A, 12489 Berlin, German. E-mail: zhavoron@mbi-berlin-de

Abstract

A new two-step approach for frequency conversion of laser radiation towards hard X-rays is developed and examined experimentally. Fast electrons are produced in a form of thin jets at the first stage, as an intense femtosecond laser pulses impinges on a micrometer water target. In the second stage the accelerated electrons hit a secondary metal target and generate characteristic K-shell radiation with a duration down to sub-femtosecond. It is shown that counter propagating laser radiation experiences very strong up-shift with up to 6 × 103 times of fundamental frequency by reflection from the electron jets.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2013 

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