An electrostatic in-line charge-state purification system for multicharged ions in the kiloelectronvolt energy range

The performance of a newly built omega type electrostatic analyzer designed to act as an in-line charge-state purification system for ions in the kiloelectronvolt energy range is reported. The analyzer consists of a set of four consecutive electrostatic 140° concentric cylindrical electrodes enclose...

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Veröffentlicht in:Review of scientific instruments 2019-08, Vol.90 (8), p.083306-083306
Hauptverfasser: Schury, Daniel, Kumar, Ajit, Méry, Alain, Chesnel, Jean-Yves, Lévy, Anna, Macé, Stéphane, Prigent, Christophe, Ramillon, Jean-Marc, Rangama, Jimmy, Rousseau, Patrick, Steydli, Sébastien, Trassinelli, Martino, Vernhet, Dominique, Lamour, Emily
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Sprache:eng
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Zusammenfassung:The performance of a newly built omega type electrostatic analyzer designed to act as an in-line charge-state purification system for ions in the kiloelectronvolt energy range is reported. The analyzer consists of a set of four consecutive electrostatic 140° concentric cylindrical electrodes enclosed by Matsuda electrodes. This setup was recently tested and validated using O5+, Ar9+, and Xe20+ ion beams at an energy of 14 qkeV at the ARIBE facility. A resolving power of 10.5 and a transmission of 100% of the desired charge state are measured allowing a good purification of incoming ion beams with charge states up to 10+ and a fairly good purification for charge states at least up to 20+. In comparison with other in-line solutions such as the Wien filter, our system has the advantage of being purely electrostatic and therefore lacking common drawbacks as, for example, hysteresis.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.5093407