Surface cleaning and chemical process analysis of high quantum efficiency magnesium photocathode
Year: 2025
Type: conference-paper
Abstract: 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.
Source: JACOW
Authors: Xiang,Rong, Hoffmann,Adrian, Arnold,Andre, Ryzhov,Anton, Hallilingaiah,Gowrishankar, Schaber,Jana, Teichert,Jochen, Murcek,Petr, Niemczyk,Raffael, Gatzmaga,Stefan
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7104269404
FWCI:
Cites:
Cited by:
Related to: