Speaker
Rong Xiang
(Helmholtz-Zentrum Dresden-Rossendorf)
Description
Magnesium (Mg) has been demonstrated to be a safe, stable, and reliable photocathode for both normal-conducting and superconducting RF guns.
Pure magnesium, with its low work function of 3.6 eV, exhibits significant quantum efficiency (QE) improvement — by up to two orders of magnitude — following appropriate surface cleaning procedures. This study investigates the chemical processes occurring on the material's surface in its as-received state and after thermal and plasma cleaning. These findings provide critical insights into the mechanisms underlying QE enhancement on this metallic photocathode.
Region represented | Europe |
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Paper preparation format | Word |
Author
Rong Xiang
(Helmholtz-Zentrum Dresden-Rossendorf)
Co-authors
Andre Arnold
(Helmholtz-Zentrum Dresden-Rossendorf)
Anton Ryzhov
(Helmholtz-Zentrum Dresden-Rossendorf)
Jana Schaber
(Helmholtz-Zentrum Dresden-Rossendorf)
Jochen Teichert
(Helmholtz-Zentrum Dresden-Rossendorf)
Petr Murcek
(Helmholtz-Zentrum Dresden-Rossendorf)
Raffael Niemczyk
(Helmholtz-Zentrum Dresden-Rossendorf)
Stefan Gatzmaga
(Helmholtz-Zentrum Dresden-Rossendorf)