Controlling the energy distribution of accelerated particles by choosing the relief parameters of the target irradiated by a short laser pulse of relativistic intensity

M. V. Sedov, K. Y. Platonov, A. A. Andreev

Результат исследований: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

Аннотация

Secondary emission from laser produced plasma is governed by the electron distribution function. Therefore, its control is of utmost importance to steer the emission e.g. of ultra-short bursts of high energy photons and ions for decisive application. In our theoretical analysis including comparison to recent experiments we follow this route and study how the energy is transferred from short laser pulse to the energy of fast ions and X-rays. We make use of ion and Kα emission which respond differently to branches of the electron distribution function when we optimize the laser light absorption via structuring of the target surface. Our investigation comprises laser intensities up to 5×1020 W/cm2 produced with femtosecond near infrared laser pulses and Titanium foil targets of a few micrometer thicknesses. In particular, we reveal an energy relaxation process of hot electrons, which determines the observed laser intensity dependence of secondary emission and points to the benefit of target surface structuring in different optimization scenarios.

Язык оригиналаанглийский
Название основной публикацииProceedings of the International Conference on Advances and Applications in Plasma Physics, AAPP 2019
РедакторыMichael Tendler, Vladimir Rozhansky, Pavel Goncharov, Anna Kravchuk
ИздательAmerican Institute of Physics
ISBN (электронное издание)9780735419261
DOI
СостояниеОпубликовано - 26 ноя 2019
Событие1st International Conference on Advances and Applications in Plasma Physics, AAPP 2019 - St. Petersburg, Российская Федерация
Продолжительность: 18 сен 201920 сен 2019

Серия публикаций

НазваниеAIP Conference Proceedings
Том2179
ISSN (печатное издание)0094-243X
ISSN (электронное издание)1551-7616

конференция

конференция1st International Conference on Advances and Applications in Plasma Physics, AAPP 2019
СтранаРоссийская Федерация
ГородSt. Petersburg
Период18/09/1920/09/19

Предметные области Scopus

  • Физика и астрономия (все)

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