Accès ouvert déclaré 2019 article

Status of the All Superconducting Gun Cavity at DESY

Elmar Vogel, S. Barbanotti, A. Brinkmann, Thorsten Buettner, J. Iversen, Kay Jensch, D. Klinke, D. Kostin, W.-D. Möller, A. Muhs, Joern Schaffran, Manuela Schmökel, J. Sekutowicz, Sven Sievers, Lea Steder, Nicolai Steinhau-Kühl, Alexey A. Sulimov, Jan-Hendrik Thie, Hans P. Weise, Marc Wenskat, Mateusz Wiencek, Lutz Winkelmann, Birte van der Horst

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Le résumé fourni par la source

At DESY, the development of a 1.6-cell, 1.3 GHz all superconducting gun cavity with a lead cathode attached to its back wall is ongoing. The special features of the structure like the back wall of the half-cell and cathode hole require adaptations of the procedures used for the treatment of nine-cell TESLA cavities. Unsatisfactory test results of two prototype cavities motivated us to re-consider the back-wall design and production steps. In this contribution we present the status of the modified cavity design including accessories causing accelerating field asymmetries, like a pick up antenna located at the back wall and fundamental power- and HOM couplers. Additionally, we discuss preliminary considerations for the compensation of kicks caused by these components.

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Les sujets associés

Particle accelerators and beam dynamicsParticle Accelerators and Free-Electron LasersSuperconducting Materials and Applications

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