Influence of laser pulse parameters on characteristics of a source of multicharged metal ions based on laser-induced medium-power spark discharge

Autor:	A. S. Shikanov, N. G. Kiselev, I. V. Romanov, V. L. Paperny, Yu. V. Korobkin, A. A. Rupasov
Rok vydání:	2013
Předmět:	Range (particle radiation) Materials science Physics and Astronomy (miscellaneous) Plasma Nanosecond Laser Cathode Ion law.invention Pulse (physics) Physics::Plasma Physics law Atomic physics Beam (structure)
Zdroj:	Technical Physics Letters. 39:388-392
ISSN:	1090-6533 1063-7850
Popis:	The dynamics of laser-induced vacuum spark discharge with storage energy not exceeding 25 J has been studied in a broad range of laser pulse energies and power densities. It is shown that, using discharge-initiating laser pulse of nanosecond duration, it is possible to obtain stable single pinching of cathode jet plasma at a storage voltage above 10 kV. Plasma pinching is accompanied by the generation of a beam of multicharged ions of the cathode material (aluminum) up to Al8+. The maximum energies of ions obey the scaling relation Emax = 5ZeU0 that has been obtained previously for a low-voltage discharge. An increase in the laser pulse energy leads to growth of the average beam charge and a sharp decrease in the ion energy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2365558c4c2ea2739de760c5f905e464 https://doi.org/10.1134/s1063785013040226 Zobrazit plný text záznamu Plný text ve formátu PDF