Publication:
Characterization of suprathermal electrons inside a laser accelerated plasma via highly-resolved K⍺-emission

Дата
2019
Авторы
Smid, M.
Renner, O.
Colaitis, A.
Tikhonchuk, V. T.
Rosmej, F. B.
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Научные группы
Организационные подразделения
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Организационная единица
Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
Выпуск журнала
Аннотация
Suprathermal electrons are routinely generated in high-intensity laser produced plasmas via instabilities driven by non-linear laser-plasma interaction. Their accurate characterization is crucial for the performance of inertial confinement fusion as well as for performing experiments in laboratory astrophysics and in general high-energy-density physics. Here, we present studies of non-thermal atomic states excited by suprathermal electrons in kJ-ns-laser produced plasmas. Highly spatially and spectrally resolved X-ray emission from the laser-deflected part of the warm dense Cu foil visualized the hot electrons. A multi-scale two-dimensional hydrodynamic simulation including non-linear laser-plasma interactions and hot electron propagation has provided an input for ab initio non-thermal atomic simulations. The analysis revealed a significant delay between the maximum of laser pulse and presence of suprathermal electrons. Agreement between spectroscopic signatures and simulations demonstrates that combination of advanced high-resolution X-ray spectroscopy and non-thermal atomic physics offers a promising method to characterize suprathermal electrons inside the solid density matter.
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Characterization of suprathermal electrons inside a laser accelerated plasma via highly-resolved K⍺-emission / Smid, M. [et al.] // Nature Communications. - 2019. - 10. - № 1. - 10.1038/s41467-019-12008-9
URI
https://www.doi.org/10.1038/s41467-019-12008-9
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85072300152&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000485860800002
 https://openrepository.mephi.ru/handle/123456789/18692
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