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Characteristic X-rays generation under the action of femtosecond laser pulses on nano-structured targets

Published online by Cambridge University Press:  21 April 2011

A.V. Ovchinnikov ,
O.F. Kostenko ,
O.V. Chefonov ,
O.N. Rosmej ,
N.E. Andreev ,
M.B. Agranat ,
J.L. Duan ,
J. Liu  and
V.E. Fortov
A.V. Ovchinnikov*
Affiliation:
Joint Institute for High Temperatures RAS, Moscow, Russia
O.F. Kostenko
Affiliation:
Joint Institute for High Temperatures RAS, Moscow, Russia
O.V. Chefonov
Affiliation:
Joint Institute for High Temperatures RAS, Moscow, Russia
O.N. Rosmej
Affiliation:
GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
N.E. Andreev
Affiliation:
Joint Institute for High Temperatures RAS, Moscow, Russia Moscow Institute of Physics and Technology (State University), Moscow, Russia
M.B. Agranat
Affiliation:
Joint Institute for High Temperatures RAS, Moscow, Russia
J.L. Duan
Affiliation:
Institute of Modern Physics, Chinese Academy of Sciences, People's Republic of China
J. Liu
Affiliation:
Institute of Modern Physics, Chinese Academy of Sciences, People's Republic of China
V.E. Fortov
Affiliation:
Joint Institute for High Temperatures RAS, Moscow, Russia Moscow Institute of Physics and Technology (State University), Moscow, Russia
*
Address correspondence and reprint requests to: A.V. Ovchinnikov, Joint Institute for High Temperatures RAS, Izhorskaya 13, Building 2, 125412 Moscow, Russia. E-mail: [email protected]
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Abstract

Enhancement of Kα yield from a metal foil covered with metal rods of submicron sizes, with low aspect ratio, irradiated by a p-polarized femtosecond laser pulses of about 1017 W/cm2 intensity is demonstrated. Obtained relative increase in Kα X-ray line emission is explained with a model of vacuum heating of fast electrons.

Keywords

Characteristic X-ray radiationHot electronsLaser-matter interactionNano-structured targets
Type
Research Article
Information
Laser and Particle Beams , Volume 29 , Issue 2 , June 2011 , pp. 249 - 254
Copyright
Copyright © Cambridge University Press 2011

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References

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