XFEL AMTF operation completed: results and lessons learned

26th International Cryogenic Engineering Conference & International Cryogenic Materials Conference 2016

材料科学;物理学

Bednarski, M.^2 ; Böckmann, T.^1 ; Bozhko, Y.^1 ; Escherich, K.^1 ; Gaj, W.^2 ; Halczynski, P.^2 ; Petersen, B.^1 ; Putselyk, S.^1 ; Schnautz, T.^1 ; Sienkiewicz, M.^2 ; Swierblewski, J.^2 ; Zhirnov, A.^1

Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, Hamburg

22607, Germany^1

Institute of Nuclear Physics Polish Academy of Sciences (IFJ PAN), Krakow

31-342, Poland^2

关键词: Cryogenic operations;    Liquid helium;    Short-pulsed electron beams;    Storage tank;    Test benches;    Two-valves;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/171/1/012099/pdf
DOI  :  10.1088/1757-899X/171/1/012099

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In order to produce short pulsed electron beam of 17.5 GeV energy, the XFEL linear accelerator is being built at DESY in Hamburg. Before being installed in the accelerator tunnel, 103 accelerator modules have to be tested in Accelerator Module Test Facility (AMTF). Cavities and cryomodules are tested at two vertical cryostats and three horizontal test benches. Two valve boxes and a liquid helium (LHe) storage tank are installed to enable cryogenic operation of AMTF. This paper describes our experience of three years cryogenic operation of AMTF. All 800 cavities and almost all cryomodules have been tested. The test results and lessons learned are also summarized.