A new H2 + source: Conceptual study and experimental test of an upgraded version of the VIS—Versatile ion source

The versatile ion source is an off-resonance microwave discharge ion source which produces a slightly overdense plasma at 2.45 GHz of pumping wave frequency extracting more than 60 mA proton beams and 50 mA He+ beams. DAEδALUS and IsoDAR experiments require high intensities for H2 + beams to be acce...

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Bibliographic Details
Published in:Review of scientific instruments 2016-08, Vol.87 (8), p.083303-083303
Main Authors: Castro, G., Torrisi, G., Celona, L., Mascali, D., Neri, L., Sorbello, G., Leonardi, O., Patti, G., Castorina, G., Gammino, S.
Format: Article
Language:English
Subjects:
Cyclotrons
Microwave discharge
Neutrinos
Proton beams
Scientific apparatus & instruments
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Summary:The versatile ion source is an off-resonance microwave discharge ion source which produces a slightly overdense plasma at 2.45 GHz of pumping wave frequency extracting more than 60 mA proton beams and 50 mA He+ beams. DAEδALUS and IsoDAR experiments require high intensities for H2 + beams to be accelerated by high power cyclotrons for neutrinos generation. In order to fulfill the new requirements, a new plasma chamber and injection system has been designed and manufactured for increasing the H2 + beam intensity. In this paper the studies for the increasing of the H2 +/p ratio and for the design of the new plasma chamber and injection system will be shown and discussed together with the experimental tests carried out at Istituto Nazionale di Fisica Nucleare-Laboratori Nazionali del Sud (INFN-LNS) and at Best Cyclotron Systems test-bench in Vancouver, Canada.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4960564