Calculated and Measured Emittance of a Sputter-Type Negative-Ion Source

@article{Billen1983CalculatedAM,
  title={Calculated and Measured Emittance of a Sputter-Type Negative-Ion Source},
  author={James H. Billen},
  journal={IEEE Transactions on Nuclear Science},
  year={1983},
  volume={30},
  pages={1495-1498}
}
A method for calculating the beam current and emittance of a negative ion beam from a sputter-type source is described. Calculations are compared to measured emittance. The dependence of the emittance on ion source parameters such as cathode shape, exit aperture diameter, and cathode voltage is discussed.