Plasma meniscus and extraction electrode studies of the ISIS H− ion source

S. R. Lawrie, D. C. Faircloth, A. P. Letchford, C. Gabor, J. K. Pozimski
2010 Review of Scientific Instruments  
In order to reduce the emittance and increase the transported beam current from the ISIS Penning-type H − ion source, improvements to the extraction system are required. This ion source is currently being commissioned on the front end test stand at the Rutherford Appleton Laboratory, which demands higher extraction energies, higher beam currents, and smaller emittances. To facilitate this, the present geometry requires optimization. This paper details the experimental and simulation studies
more » ... ormed of the plasma meniscus and the possible electrode geometry modifications needed to extract the highest quality beam.
doi:10.1063/1.3277139 pmid:20192377 fatcat:gm3o4z4c6zh4xp2gowq4awysv4