EUV spectra from highly charged terbium ions in optically thin and thick plasmas

Autor:	Naoki Tamura, John Sheil, G O'Sullivan, C Suzuki, Izumi Murakami, Elgiva White, S. Sudo, Fumihiro Koike, Fergal O'Reilly, Elaine Long, Padraig Dunne, Emma Sokell
Rok vydání:	2015
Předmět:	Physics History genetic structures Opacity Extreme ultraviolet lithography chemistry.chemical_element Torus Terbium Plasma Spectral line Computer Science Applications Education Ion chemistry Physics::Plasma Physics Extreme ultraviolet Physics::Space Physics sense organs Atomic physics
Zdroj:	Journal of Physics: Conference Series. 583:012007
ISSN:	1742-6596
DOI:	10.1088/1742-6596/583/1/012007
Popis:	We have observed extreme ultraviolet (EUV) spectra from terbium (Tb) ions in optically thin and thick plasmas for a comparative study. The experimental spectra are recorded in optically thin, magnetically confined torus plasmas and dense laser-produced plasmas (LPPs). The main feature of the spectra is quasicontinuum emission with a peak around 6.5-6.6 nm, the bandwidth of which is narrower in the torus plasmas than in the LPPs. A comparison between the two types of spectra also suggests strong opacity effects in the LPPs. A comparison with the calculated line strength distributions gives a qualitative interpretation of the observed spectra.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1134c7334ddfa09649cc911d28f95bec https://doi.org/10.1088/1742-6596/583/1/012007 Zobrazit plný text záznamu