Quantum Efficiencies of Mg Photocathode under Illumination with 3 rd and 4 th Harmonics Nd : LiYF 4 Laser Light in RF Gun

@inproceedings{Nakajyo2003QuantumEO,
  title={Quantum Efficiencies of Mg Photocathode under Illumination with 3 rd and 4 th Harmonics Nd : LiYF 4 Laser Light in RF Gun},
  author={T. Nakajyo and Jinfeng Yang and Fumio Sakai and Y. Aoki},
  year={2003}
}
A Mg photocathode for use in a radio-frequency gun was manufactured by a technique of hot isostatic pressing with diamond polishing and tested under a peak electric field of 57 MV/m. A laser cleaning process for the Mg cathode was developed. The quantum efficiency (QE) of the Mg cathode before and after the laser cleaning was measured under illumination with 262 nm and 349 nm laser light. A high QE of up to 1:0 10 3 was achieved under the 262 nm laser-light illumination. The QE of the Mg… CONTINUE READING