Study of Magnesium Photocathodes for Superconducting RF Photoinjectors
Study of Magnesium Photocathodes for Superconducting RF Photoinjectors
Xiang, R.; Arnold, A.; Lu, P. N.; Murcek, P.; Teichert, J.; Vennekate, H.
The superconducting RF photoinjector (SRF Gun II) has successfully served for the ELBE user facility at HZDR. The quality of photocathodes is one of the most critical issues in improving the stability and reliability for its application. Mg has a comparably low work function and shows quantum efficiency up to 0.3% after laser cleaning. But the present cleaning with a high intensity laser beam is time consuming and produces unwanted surface roughness. Thermal treatment and excimer laser cleaning are being investigated as alternative methods.
Keywords: electron source; photocathode; Mg; SRF gun; superconducting RF; laser cleaning
Involved research facilities
- Radiation Source ELBE DOI: 10.17815/jlsrf-2-58
Related publications
- DOI: 10.17815/jlsrf-2-58 is cited by this (Id 27494) publication
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Poster
9th International Particle Accelerator Conference IPAC´18, 29.04.-04.05.2018, Vancouver, Canada -
Contribution to proceedings
9th International Particle Accelerator Conference IPAC´18, 29.04.-04.05.2018, Vancouver, Canada
Proceedings of the 9th International Particle Accelerator Conference IPAC´18, Genf: JACoW, 4142-4144
DOI: 10.18429/JACoW-IPAC2018-THPMF039
Permalink: https://www.hzdr.de/publications/Publ-27494
