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X‐Ray Diagnostics of Ultrashort Laser‐Driven Plasma: Experiment and Simulations
Author(s) -
Ivanov K.A.,
Shulyapov S.A.,
Turinge A.A.,
Brantov A.V.,
Uryupina D.S.,
Volkov R.V.,
Rusakov A.V.,
Djilkibaev R.M.,
Nedorezov V.G.,
Bychenkov V.Yu.,
Savel'ev A.B.
Publication year - 2013
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.201310023
Subject(s) - plasma , spectral line , cutoff , laser , physics , monte carlo method , atomic physics , computational physics , x ray , electron , plasma diagnostics , intensity (physics) , optics , nuclear physics , statistics , mathematics , quantum mechanics , astronomy
Abstract The complex approach combining experimental data on X‐ray diagnostics of plasma, the results of the numerical PIC simulation of laser‐plasma interaction (namely – fast electron spectra), as well as Monte‐Carlo calculation of the resulted X‐ray spectrum is presented. Direct comparison of the experimental and simulated X‐ray spectra (obtained at laser pulse intensity of 2.5 × 10 18 W/cm 2 ) revealed differences in the mean slope and cutoff of the two spectra. In particular experimental data exhibited twice higher slope. The possible explanations of the observed discrepancies are further discussed. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)