Dark Current in Superconducting RF Photoinjectors – Measurements and Mitigation
Dark Current in Superconducting RF Photoinjectors – Measurements and Mitigation
Teichert, J.; Arnold, A.; Lu, P.; Murcek, P.; Staats, G.; Vennekate, H.; Xiang, R.; Barday, R.; Kamps, T.
Unwanted beam can cause beam losses and may produce acute or chronic damages of the accelerator. Furthermore it can considerably disturb experiments or increase its back-ground. The operation of the superconducting RF photo gun at the ELBE accelerator has delivered the first experimental information on that topic. It was found, that dark current is an important issue, similar to that of normal conducting RF photo injectors. In the presentation the measurement of dark current, its properties and analysis will be shown and we will discuss ways for mitigation, especially the construction of a dark current kicker.
Keywords: SRF gun; superconducting RF; photo injector; dark current; field emission
Involved research facilities
- Radiation Source ELBE DOI: 10.17815/jlsrf-2-58
Related publications
- DOI: 10.17815/jlsrf-2-58 is cited by this (Id 19216) publication
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Lecture (Conference)
The 53th ICFA Advanced Beam Dynamics Workshop on Energy Recovery Linacs ERL-2013, 09.-13.09.2013, Novosibirsk, Russia -
Contribution to proceedings
The 53th ICFA Advanced Beam Dynamic Workshop on Energy Recovery Linacs ERL-2013, 09.-13.09.2013, Novosibirsk, Russia
Proceedings of ERL-2013, Novosibirsk, Russia, 2013, Genf: Jacow
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