Počet záznamů: 1
Measurement of strong electromagnetic pulses generated from solid targets at sub-ns kJ-class PALS laser facility
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SYSNO ASEP 0543795 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Measurement of strong electromagnetic pulses generated from solid targets at sub-ns kJ-class PALS laser facility Tvůrce(i) Raczka, P. (PL)
Cikhardt, Jakub (UFP-V) ORCID
Pfeifer, Miroslav (UFP-V) RID
Krása, J. (CZ)
Krupka, Michal (UFP-V) ORCID
Burian, Tomáš (UFP-V) ORCID
Krůs, Miroslav (UFP-V) RID
Pisarczyk, T. (PL)
Dostál, Jan (UFP-V) RID, ORCID
Dudžák, Roman (UFP-V) RID, ORCID
Badziak, J. (PL)Celkový počet autorů 11 Číslo článku 085015 Zdroj.dok. Plasma Physics and Controlled Fusion. - : Institute of Physics Publishing - ISSN 0741-3335
Roč. 63, č. 8 (2021)Poč.str. 17 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova stimulated raman-scattering ; plasma ; emission ; electromagnetic pulses ; D-dot probes ; hot electrons ; laser-plasma interactions Vědní obor RIV BH - Optika, masery a lasery Obor OECD Fluids and plasma physics (including surface physics) CEP LM2018114 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EF16_013/0001552 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GA19-02545S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UFP-V - RVO:61389021 UT WOS 000667938800001 EID SCOPUS 85109904408 DOI 10.1088/1361-6587/ac087f Anotace Measurements had been performed of strong electromagnetic pulses (EMPs) generated as a result of laser-target interaction at the sub-ns kJ-class Prague Asterix Laser System facility. Two conductive Prodyn FD5C D-dot pencil probes were used. Measurements were performed inside the experimental chamber and outside the chamber in a large chamber window 40 cm in diameter in a setup that guaranteed 6 GHz bandwidth. A very good signal-to-noise ratio (17:1) was obtained after some steps were taken to ensure proper EMP shielding of the data collection setup. The EMP signal in the time domain was found to have the form of a sharp initial spike followed by gradually decaying oscillations interspersed with some secondary spikes. The values of the vertical component of the electric field strength were estimated. The highest value recorded in this experiment was 620(-180)(+260) kV m(-1) at a distance of 40 cm from the target. It was observed that plastic targets-particularly the 100s of mu m thick plastic foils-tend to generate stronger EMP fields than Cu and Au targets. A time-frequency analysis was performed for a typical shot, clearly showing some spectral features that appear only sometime after the start of the signal and hence indicate EMP generation from secondary sources. Electrons ejected from the target were recorded with the energies exceeding 1.5 MeV, which indicates that highly energetic processes are triggered as a result of the laser-target interaction. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2022 Elektronická adresa https://iopscience.iop.org/article/10.1088/1361-6587/ac087f
Počet záznamů: 1