| Paper |
Title |
Page |
| TUP042 |
Lifetime of Cs2Te Cathodes Operated at the FLASH Facility |
464 |
| |
- S. Schreiber, S. Lederer
DESY, Hamburg, Germany
|
|
| |
The injector of the free-electron laser facility FLASH at DESY (Hamburg, Germany) uses Cs2Te photocathodes. We report on the lifetime, quantum efficiency (QE), and darkcurrent of photocathodes operated at FLASH during the last year. Cathode 618.3 has been operated for a record of 439 days with a stable QE in the order of 3%. The fresh cathode 73.3 shows an enhancement of emitted electrons for a few microseconds of a 1 MHz pulse train.
|
|
| Export • |
reference for this paper to
※ LaTeX,
※ Text,
※ IS/RefMan,
※ EndNote (xml)
|
|
| |