LASA Cs2Te Photocathodes: The Electron Source for XFELs View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

2018-12-08

AUTHORS

Carlo Pagani , Paolo Michelato , Laura Monaco , Daniele Sertore

ABSTRACT

Laser triggered photocathodes are key components of the electron sources for the XFELs. Research on semiconductor photocathodes started in the 90s at INFN LASA Milano by studying multialkali antimonied compounds (Cs3Sb, K3Sb, and K2CsSb), showing that the high QE was coupled with very high sensitivity to vacuum pollution. To avoid these deterioration issues, we focused our activity on Cs2Te which, while sensitive to UV light, has better resistance to gas contamination. Since then, we have a dedicated R&D program aimed at developing a always more reliable photocathode and its associated transport systems. Today our photocathodes are used at FLASH and at European XFEL at DESY Hamburg, PITZ at DESY Zeuthen, APEX in LBNL, FAST at FNAL and at LCLS-II at SLAC. More... »

PAGES

281-292

Book

TITLE

Toward a Science Campus in Milan

ISBN

978-3-030-01628-9
978-3-030-01629-6

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/978-3-030-01629-6_24

DOI

http://dx.doi.org/10.1007/978-3-030-01629-6_24

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1110447544


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