Robust Photocathodes

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This R&D topic is related to exploring polarized GaAs photocathodes with robust NEA heterostructures to provide extended operational lifetime in high voltage photo-guns.

Documents & Links
  • L. Cultrera et al. Long lifetime polarized electron beam production from negative electron affinity GaAs activated with Sb-Cs-O: Trade-offs between efficiency, spin polarization, and lifetime, Phys. Rev. Accelerators and Beams 23, 023401 (2020) media:PhysRevAccelBeams.23.023401.pdf