| Title |
Update on the Photocathode Lifetime at FLASH and European XFEL |
| Authors |
- S. Lederer, F. Brinker, S. Schreiber
DESY, Hamburg, Germany
- L. Monaco, D. Sertore
INFN/LASA, Segrate (MI), Italy
|
| Abstract |
The photoinjectors of FLASH and the European XFEL at DESY (Hamburg, Germany) are operated by laser driven RF-guns. In both facilities Cs2Te photocathodes are successfully used. In this paper we give an update on the lifetime, quantum efficiency (QE) and dark current of the photocathodes used over the last years. At FLASH cathode #73.3 was operated for a record lifetime of 1413 days and was replaced December 2018 by cathode #10⁵.2. At the European XFEL cathode #680.1 is in operation since December 2015, for 1356 days up to now.
|
| Paper |
download WEP047.PDF [0.832 MB / 3 pages] |
| Export |
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| Conference |
FEL2019 |
| Series |
Free Electron Laser Conference (39th) |
| Location |
Hamburg, Germany |
| Date |
26-30 August 2019 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Volker R.W. Schaa (GSI, Darmstadt, Germany); Winfried Decking (DESY, Hamburg, Germany); Harald Sinn (EuXFEL, Schenefeld, Germany); Gianluca Geloni (EuXFEL, Schenefeld, Germany); Siegfried Schreiber (DESY, Hamburg, Germany); Michaela Marx (DESY, Hamburg, Germany) |
| Online ISBN |
978-3-95450-210-3 |
| Online ISSN |
"" |
| Received |
20 August 2019 |
| Accepted |
28 August 2019 |
| Issue Date |
05 November 2019 |
| DOI |
doi:10.18429/JACoW-FEL2019-WEP047 |
| Pages |
427-429 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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