Particulate Sampling and Analysis During Refurbishment of Prototype European XFEL Cryomodule

Autor: Krupka, Nicolay, Bate, Christopher, Reschke, Detlef, Saegebarth, Steven, Schalwat, Marco, Schilling, Patrick, Sievers, Sven
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Geneva : JACoW 106-109 (2019). doi:10.3204/PUBDB-2019-02878
Proceedings of the SRF 19 International Conference
Proceedings of the SRF 19 International Conference19th International Conference on RF Superconductivity, SRF 19, Dresden, Germany, 2019-06-30-2019-07-05
DOI: 10.18429/jacow-srf2019-tup099
Popis: Proceedings of the SRF 19 International Conference 19th International Conference on RF Superconductivity, SRF 19, Dresden, Germany, 30 Jun 2019 - 5 Jul 2019; Geneva : JACoW 106-109 (2019).
The cryomodule PXFEL3_1 is one of three prototype cryomodules for the European XFEL. In preparation of the series module assembly it was used for the qualification of infrastructure and personnel at CEA Saclay. After transport and tests at DESY the cryomodule was stored for several years. Last year we decided to refurbish this module with new cavities for the installation in the FLASH accelerator. During the disassembly of the cavity string in the clean room at DESY we took several particulate samples for analysis. Optical and laser optical microscopy give us an insight on the quantity and type of the particulates. We expect to get hints where the particulates come from and how they are transported through the cavity string during transport and operation.
Published by JACoW, Geneva
Databáze: OpenAIRE