Thermal emittance measurements of a cesium potassium antimonide photocathode

@article{Bazarov2011ThermalEM,
  title={Thermal emittance measurements of a cesium potassium antimonide photocathode},
  author={Ivan V. Bazarov and Luca Cultrera and Adam Bartnik and Bruce M. Dunham and Siddharth Karkare and Yulin Li and Xianghong Liu and Jared M. Maxson and W. T. M. Roussel},
  journal={Applied Physics Letters},
  year={2011},
  volume={98},
  pages={224101}
}
Thermal emittance measurements of a CsK2Sb photocathode at several laser wavelengths are presented. The emittance is obtained with a solenoid scan technique using a high voltage dc photoemission gun. The thermal emittance is 0.56±0.03 mm mrad/mm(rms) at 532 nm wavelength. The results are compared with a simple photoemission model and found to be in a good agreement. 

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