Target current: An appropriate parameter for characterizing the dynamics of laser-matter interaction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F18%3A00328662" target="_blank" >RIV/68407700:21230/18:00328662 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2520177" target="_blank" >http://dx.doi.org/10.1117/12.2520177</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2520177" target="_blank" >10.1117/12.2520177</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Target current: An appropriate parameter for characterizing the dynamics of laser-matter interaction

Popis výsledku v původním jazyce

A resistive target probes were employed to obtain unique characteristics of the dynamic of the laser-matter interaction through the observation of a return current neutralizing the positive target charge caused by electrons definitely leaving the plasma. Experimental observations show that three phases of the laser-produced plasma are well recognized, i.e. the plasma ignition phase, active plasma phase, and afterglow phase already for the lowest laser intensity at the focal point of 108 Wcm-2 . Then, at higher intensities the first two phases strongly dominate and the target current reaches a value of 10 kA. A throughput of plasma barrier for the fastest electrons leaving the plasma is defined, and its value is experimentally estimated. We also present key experiments proving that the duration of the electrical charge on the target is much longer than the duration of the laser-plasma interaction for the entire intensity range.

Název v anglickém jazyce

Target current: An appropriate parameter for characterizing the dynamics of laser-matter interaction

Popis výsledku anglicky

A resistive target probes were employed to obtain unique characteristics of the dynamic of the laser-matter interaction through the observation of a return current neutralizing the positive target charge caused by electrons definitely leaving the plasma. Experimental observations show that three phases of the laser-produced plasma are well recognized, i.e. the plasma ignition phase, active plasma phase, and afterglow phase already for the lowest laser intensity at the focal point of 108 Wcm-2 . Then, at higher intensities the first two phases strongly dominate and the target current reaches a value of 10 kA. A throughput of plasma barrier for the fastest electrons leaving the plasma is defined, and its value is experimentally estimated. We also present key experiments proving that the duration of the electrical charge on the target is much longer than the duration of the laser-plasma interaction for the entire intensity range.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/GA16-07036S" target="_blank" >GA16-07036S: Mechanismy urychlení iontů v deuteriových z-pinčích</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of SPIE - The International Society for Optical Engineering

ISBN

—

ISSN

0277-786X

e-ISSN

0277-786X

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

SPIE

Místo vydání

Montréal

Místo konání akce

Frascati

Datum konání akce

9. 10. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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