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Production of Highly Charged Heavy Ions by Means of a Hybrid Source in DC Mode and in Afterglow Mode
Author(s) -
Gammino Santo,
Ciavola Giovanni,
Torrisi Lorenzo,
Celona Luigi,
Andò Lucio,
Manciagli Sebastiano,
Consoli Fabrizio,
Galatà Alessio,
Picciotto Antonio,
Mezzasalma Angela M.,
Krása Josef,
Láska Leos,
Pfeifer Mirek,
Rohlena Karel,
Wolowski Jerzy,
Woryna Eugeniusz,
Parys Piotr,
Shirkov Grigori D.,
Hitz Denis
Publication year - 2005
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.200500011
Subject(s) - afterglow , atomic physics , materials science , laser , ion source , ion , tantalum , electron cyclotron resonance , ion current , continuous wave , analytical chemistry (journal) , plasma , optics , chemistry , physics , nuclear physics , gamma ray burst , organic chemistry , chromatography , astronomy , metallurgy
Summary: An ECLISSE experiment has been carried out by coupling a laser ion source (based on a Nd:YAG laser (0.9 J/9 ns, laser power densities < 10 11 W · cm −2 ) to the SERSE superconducting electron cyclotron resonance ion source. Continuous wave beams of highly charged ions from metal samples without the use of ovens or sputtering techniques were obtained under a variety of experimental conditions. The maximum charge states obtained from the ECRIS were 38 + for Ta and 41 + for Au. The peak current was obtained for 25 + and 29 + , respectively, and it was in the order of some tens of µA. In this work the analysis of some preliminary results obtained in afterglow mode will also be presented. We employed microwave pulses (length 4 ms) and laser pulses (length 9 ns) with the same frequency (30 Hz) and variable relative phase. For appropriate phase values, a current enhancement of about one order of magnitude was observed.The extraction electrode featuring the traces of deposited tantalum and gold.