EUV spectra of Xe xvii–Xe xxi produced in charge-exchange collisions

Autor:	Bowen Li, Takako Kato, Hiroaki Nishimura, Gerard O'Sullivan, Hajime Tanuma, Chihiro Suzuki, Oran Morris, S Suda, Rebekah D’Arcy, Hayato Ohashi, Fumihiro Koike, Shinsuke Fujioka, Katsunobu Nishihara
Rok vydání:	2012
Předmět:	Physics Xenon chemistry Electron capture Extreme ultraviolet Ionization chemistry.chemical_element Atomic physics Atomic and Molecular Physics and Optics Helium Spectral line Electron cyclotron resonance Ion
Zdroj:	Physical Review A. 85
ISSN:	1094-1622 1050-2947
DOI:	10.1103/physreva.85.062513
Popis:	Charge-state-specific spectra produced from charge exchange collisions between xenon ions and helium target atoms using an ECR (electron cyclotron resonance) source have been recorded in extreme ultraviolet (EUV). At low target gas pressures, the spectra were produced after a single collision event involving electron capture by the projectile ion and in each case intense emission near 11 nm was observed. The spectra of Xe${}^{16+}$ to Xe${}^{20+}$ are compared with atomic structure calculations and the possible mechanisms for electron capture are discussed. There is some evidence that for lower charged ions the spectra in the 10--15 nm region result mainly from transfer excitation or ionization processes rather than direct single electron capture into high $nl$ states.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::44128fc5b82d010a5e6fe5284518f392 https://doi.org/10.1103/physreva.85.062513 Zobrazit plný text záznamu