Article ID | Journal | Published Year | Pages | File Type |
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1681553 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2016 | 5 Pages |
In this paper we discuss various ion sources used in particle accelerator systems dedicated to ion beam analysis techniques. Key performance and characteristics of some ion sources are discussed: emittance, brightness, gas consumption, sample consumption efficiency, lifetime, etc. For negative ion sources, we focus on the performance of volume H− ion sources (e.g. HVE model 358), the duoplasmatron negative ion source and the magnetically filtered multicusp volume sources (e.g. HVE model SO-120). The duoplasmatron ion source has been recently upgraded with a Ta filament to deliver up to 150 μA H− ion beams and in conjunction with the Na charge exchange canal up to 20 μA of He−. The available brightness from the duoplasmatron increased from 2 to 6 A m−2 rad−2 eV−1. The ion source has been incorporated in a stand-alone light ion injector, well suited to deliver 20–30 keV negative ion beams of H−, He−, C−, NHx− and O− to accelerate for most ion beam analysis techniques.