Update on the Lifetime of Cs$_2$Te Cathodes Operated at the FLASH Facility

Authors :: Schreiber, Siegfried
Lederer, Sven
Monaco, Laura
Sertore, Daniele
Michelato, Paolo
Source :: 38th International Free-Electron Laser Conference, FEL 2017, Santa Fe, USA, 2017-08-20-2017-08-25
Publication Year :: 2017
Publisher :: Deutsches Elektronen-Synchrotron, DESY, Hamburg, 2017.
Abstract: 38th International Free Electron Laser Conference, FEL2017, Santa Fe, United States, 20 Aug 2017 - 25 Aug 2017; 4 pp. (2017).<br />The photoinjector of the free-electron laser facility FLASH at DESY (Hamburg, Germany) uses Cs2Te photocathodes.We give an update on lifetime and quantumefficiency of cathodes operated at FLASH during the lastyears. At the time of the conference, cathode 73.3 has been operated with a record of 933 days with a stable quantum efficiency of in average 8.8 %.

Language :: English
Database :: OpenAIRE
Journal :: 38th International Free-Electron Laser Conference, FEL 2017, Santa Fe, USA, 2017-08-20-2017-08-25
Accession number :: edsair.doi.dedup.....bdb3612e6235cd9ac88e9814ec55bad3
Full Text :: https://doi.org/10.3204/pubdb-2017-12557