A Survey of Pressure Vessel Code Compliance for Superconducting RF Cryomodules

Autor: Peterson, Thomas, Klebaner, Arkadiy, Nicol, Tom, Theilacker, Jay, Hayano, Hitoshi, Kako, Eiji, Nakai, Hirotaka, Yamamoto, Akira, Jensch, Kay, Matheisen, Axel, Mammosser, John

Superconducting radio frequency (SRF) cavities made from niobium and cooled with liquid helium are becoming key components of many particle accelerators. The helium vessels surrounding the RF cavities, portions of the niobium cavities themselves, and

Externí odkaz: http://arxiv.org/abs/1209.2405

A New High Resolution Optical System for Inspection of Gun – and Multi-Cell Resonators in ISO-4 Cleanrooms

Autor: Schalwat, Marco, Bandelmann, Ruediger, Daniel, Alexej, Krupka, Nicolay, Matheisen, Axel, Sievers, Sven Thorsten

Publikováno v: 18th International Conference on RF Superconductivity, SRF2017, Lanzhou, China, 2017-07-17-2017-07-21
Geneva : Jacow 1-4 (2017). doi:10.3204/PUBDB-2017-12065

18th International Conference on RF Superconductivity, Lanzhou, China, 17 Jul 2017 - 21 Jul 2017; Geneva : Jacow, 1-4 (2017).
Optical inspection of the inner surface of superconducting resonators was established during European XFEL cavity produ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0acdc2f3e41c8c38b7fda39d0d94f990
https://bib-pubdb1.desy.de/record/395301

Experience on In-Situ Module Repair and Set up of Non XFEL Cavity Strings at DESY

Autor: Schmökel, Manuela, Daniel, Alexej, Krupka, Nicolay, Matheisen, Axel, Saegebarth, Steven, Schalwat, Marco, Schilling, Patrick

Publikováno v: 18th International Conference on RF Superconductivity, SRF2017, Lanzhou, China, 2017-07-17-2017-07-21

All components installed to the European XFEL cavity string modules underwent an intensive inspection and quality control before acceptance for installation to cavities or modules. Even though some RF feed throughs for HOM coupler- and Pick Up antenn

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a14eb227d05cc6e3993ed42d4db1b38

Vertical Electro Polishing of Superconducting Single and Multi Cell Gun Resonators

Autor: Steinhau-Kühl, Nicolai, Arnold, Andre, Bandelmann, Ruediger, Matheisen, Axel, Saegebarth, Steven, Schmökel, Manuela

Publikováno v: 1-4 (2017). doi:10.3204/PUBDB-2017-09757
18th International Conference on RF Superconductivity, SRF2017, Lanzhou, China, 2017-07-17-2017-07-21

At DESY activities on surface treatment of superconducting RF gun cavity resonators at 1.3 GHz are ongoing. Due to the small opening on the endplate for insertion of cathodes, no reasonable acid flow can be realized with the existing set up for horiz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::223088df4203f82ecacdeeb0dd9c6dff
https://bib-pubdb1.desy.de/record/390700

Vertical Tests of XFEL 3rd Harmonic Cavities

Autor: Sertore, Daniele, Bertucci, Michele, Bosotti, Angelo, Chen, Jinfang, Maiano, Cecilia, Matheisen, Axel, Michelato, Paolo, Monaco, Laura, Moretti, Massimiliano, Pagani, Carlo, Paparella, Rocco, Pierini, Paolo, Schmökel, Manuela

The 10 cavities of the EXFEL 3rd Harmonic Cryomodule have been tested and qualified, before integration in the He-tank, in our upgraded Vertical Test stand. In this paper, we report the measured RF performance of these cavities together with the main

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::981e161fd82a08b82906e2215e2bcaba