Magnetic field induced by laser-driven target current

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F16%3A00328666" target="_blank" >RIV/68407700:21230/16:00328666 - isvavai.cz</a>
Result on the web
<a href="http://ocs.ciemat.es/EPS2016PAP/pdf/P1.083.pdf" target="_blank" >http://ocs.ciemat.es/EPS2016PAP/pdf/P1.083.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Magnetic field induced by laser-driven target current
Original language description
This contribution deals with direct observation of a transient magnetic field induced by a current flowing through the target holder to balance the target charging caused by intense laser radiation delivered by the 3 TW, 300 ps laser system PALS. Both the target and its holder fixed to the interaction chamber react to the target ablation as an electrical circuit, which emits electromagnetic pulses in the megahertz to gigahertz domain. For this reason the interaction chamber is considered as a resonant cavity in which different modes of EM field oscillate for hundreds of nanoseconds until EM waves are completely lost. We present an inductive target probe developed by Cikhardt et al. Rev. Sci. Instrum. 85 (2014) 103507, allowing the direct observation of the transient target current. Since the applied inductive target probe is resistive against the interfering electromagnetic pulse (EMP) occurred inside the interaction chamber where the charged particles are accelerated, the relationship between the magnetic part of the EMP elsewhere inside and outside the interaction chamber and the magnetic field induced by the neutralization target current can be obtained. Frequency analysis indicates a multimode frequency distribution of EMP spectra which arises as a mixture of large number of modes.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
43rd EPS Conference on Plasma Physics (EPS 2016), Europhysics Conference Abstracts Volume 40A
ISBN
978-1-5108-2947-3
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
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Publisher name
European Geophysical Society
Place of publication
Haague
Event location
Leuven
Event date
Jul 4, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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