Home > Publications database > High gradients at SRF photoinjector cavities with low RRR copper cathode plug screwed to the cavity back wall > print

001     596203
005     20231015002434.0
024 7 _ |a arXiv:2310.02974
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024 7 _ |a inspire:2706138
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024 7 _ |a 10.3204/PUBDB-2023-06113
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037 _ _ |a PUBDB-2023-06113
041 _ _ |a English
088 _ _ |a arXiv:2310.02974
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100 1 _ |a Vogel, Elmar
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245 _ _ |a High gradients at SRF photoinjector cavities with low RRR copper cathode plug screwed to the cavity back wall
260 _ _ |c 2023
336 7 _ |a Preprint
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336 7 _ |a WORKING_PAPER
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336 7 _ |a Electronic Article
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336 7 _ |a preprint
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336 7 _ |a ARTICLE
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336 7 _ |a Output Types/Working Paper
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500 _ _ |a 4 pages, 7 figures, to be submitted to PRAB
520 _ _ |a In recent years we increased the typical maximum peak field on axis gradients obtained in L-band superconducting RF (SRF) photoinjector cavities at vertical tests to around 55 MV/m. This was achieved with niobium cathode plugs directly screwed to the cavity back wall omitting an RF choke filter and a load lock system for cathodes. Copper demonstrated being a suitable cathode material in normal conducting injector cavities used at X-Ray Free Electron Lasers (XFELs) operating with pulsed RF. In this article we present the first experimental confirmation that peak field on axis gradients around 55 MV/m and beyond can be achieved in L-band SRF photoinjector cavities with copper cathode plugs screwed to the cavity back wall. We view this as a major milestone for the development of a high gradient photoinjector operating continuous wave (CW).
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693 _ _ |a XFEL
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700 1 _ |a Sekutowicz, J.
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700 1 _ |a Bazyl, D.
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700 1 _ |a Büttner, T.
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700 1 _ |a van der Horst, B.
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700 1 _ |a Iversen, J.
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700 1 _ |a Klinke, D.
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700 1 _ |a Muhs, A.
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700 1 _ |a Reschke, D.
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700 1 _ |a Sägebarth, S.
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700 1 _ |a Schilling, Patrick
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700 1 _ |a Schmökel, M.
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700 1 _ |a Steder, L.
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700 1 _ |a Thie, J.-H.
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700 1 _ |a Weise, H.
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700 1 _ |a Wiencek, M.
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856 4 _ |y OpenAccess
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914 1 _ |y 2023
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