SRF2017 - List of Authors (Lindroos, M.)

Paper	Title	Page
MOYA01	The Superconducting Accelerator for the ESS Project	24
	F. Schlander, C. Darve, N. Elias, M. Lindroos, C.G. Maiano ESS, Lund, Sweden P. Bosland CEA/IRFU, Gif-sur-Yvette, France M. Ellis STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom P. Michelato INFN/LASA, Segrate (MI), Italy G. Olry IPN, Orsay, France R.J.M.Y. Ruber Uppsala University, Uppsala, Sweden
	The European Spallation Source, ESS, is under construction in Lund since 2014. While the installation of the source and the normal conducting part will start in this autumn, the production and testing of cryomodules and cavities for the superconducting accelerator is in full swing at the partner laboratories. The spoke cavities and cryomodules will be provided by IPN Orsay and the testing of those modules will take place at Uppsala University. Prototyping and assembly of the elliptical cryomodules series is occurring at CEA Saclay, and the modules will be tested at a new test stand at ESS. The fabrication and test of the medium beta cavities is provided by INFN Milan and STFC Daresbury for the high beta cavities respectively. An overview of the current activities and test results will be presented in this talk.
	Slides MOYA01 [26.361 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-MOYA01
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TUPB047	Passband Modes Excitation Triggered by Field Emission in ESS Medium Beta Cavity Prototype	489
	J.F. Chen, M. Bertucci, A. Bosotti, P. Michelato, L. Monaco, R. Paparella, D. Sertore INFN/LASA, Segrate (MI), Italy M. Eshraqi, M. Lindroos, S. Pirani ESS, Lund, Sweden C. Pagani Università degli Studi di Milano & INFN, Segrate, Italy T.P.Å. Åkesson Lund University, Department of Physics, Lund, Sweden
	During the first vertical test of ESS Medium Beta large-grain prototype cavity in INFN-LASA, a phenomenon of coexisting two passband-modes was observed – 4π/6 mode was excited spontaneously during the power rise of 3π/6 mode. This phenomenon is most likely due to the field-emission electrons that transfer their energy gained from the 3π/6 mode to the 4π/6 mode. In this paper, we present the experimental results, the excitation mechanism and the related simulation results.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-TUPB047
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

The Superconducting Accelerator for the ESS Project

24

F. Schlander, C. Darve, N. Elias, M. Lindroos, C.G. Maiano
ESS, Lund, Sweden
P. Bosland
CEA/IRFU, Gif-sur-Yvette, France
M. Ellis
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
P. Michelato
INFN/LASA, Segrate (MI), Italy
G. Olry
IPN, Orsay, France
R.J.M.Y. Ruber
Uppsala University, Uppsala, Sweden

The European Spallation Source, ESS, is under construction in Lund since 2014. While the installation of the source and the normal conducting part will start in this autumn, the production and testing of cryomodules and cavities for the superconducting accelerator is in full swing at the partner laboratories. The spoke cavities and cryomodules will be provided by IPN Orsay and the testing of those modules will take place at Uppsala University. Prototyping and assembly of the elliptical cryomodules series is occurring at CEA Saclay, and the modules will be tested at a new test stand at ESS. The fabrication and test of the medium beta cavities is provided by INFN Milan and STFC Daresbury for the high beta cavities respectively. An overview of the current activities and test results will be presented in this talk.

Slides MOYA01 [26.361 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-MOYA01

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPB047

Passband Modes Excitation Triggered by Field Emission in ESS Medium Beta Cavity Prototype

489

J.F. Chen, M. Bertucci, A. Bosotti, P. Michelato, L. Monaco, R. Paparella, D. Sertore
INFN/LASA, Segrate (MI), Italy
M. Eshraqi, M. Lindroos, S. Pirani
ESS, Lund, Sweden
C. Pagani
Università degli Studi di Milano & INFN, Segrate, Italy
T.P.Å. Åkesson
Lund University, Department of Physics, Lund, Sweden

During the first vertical test of ESS Medium Beta large-grain prototype cavity in INFN-LASA, a phenomenon of coexisting two passband-modes was observed – 4π/6 mode was excited spontaneously during the power rise of 3π/6 mode. This phenomenon is most likely due to the field-emission electrons that transfer their energy gained from the 3π/6 mode to the 4π/6 mode. In this paper, we present the experimental results, the excitation mechanism and the related simulation results.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-TUPB047

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)