SRF2017 - List of Authors (Madec, C.)

Paper	Title	Page
MOPB011	CEA Cryomodules Design for SARAF Phase 2	70
	C. Madec CEA, Gif-sur-Yvette, France N. Bazin, D. Chirpaz-Cerbat, R. Cubizolles CEA/IRFU, Gif-sur-Yvette, France P. Brédy CEA/DSM/IRFU, France R. Bruce, P. Hardy, F. Leseigneur, Th. Plaisant, J. Plouin CEA/DRF/IRFU, Gif-sur-Yvette, France
	CEA is committed to delivering a Medium Energy Beam Transfer line and a superconducting linac (SCL) for SARAF accelerator in order to accelerate 5mA beam of either protons from 1.3 MeV to 35 MeV or deuterons from 2.6 MeV to 40.1 MeV. The SCL consists in 4 cryomodules separated by warm diagnostics housing beam diagnostics. The first two identical cryomodules host 6 half-wave resonator (HWR) low beta cavities (β = 0.091), 176 MHz. The last two identical cryomodules are equipped with 7 HWR high-beta cavities (β = 0.181), 176 MHz. The beam is focused through superconducting solenoids located between cavities housing steering coils. A Beam Position Monitor is placed upstream each solenoid. A diagnostic box containing a beam profiler and a vacuum pump will be placed at the end of each cryomodule. The cryomodules and the warm sections are being designed. These studies will be presented in this poster.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-MOPB011
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MOPB076	Analysis of the Production, Installation and Commissioning of the European-XFEL Frequency Tuners	235
	R. Paparella, A. Bosotti, D. Sertore INFN/LASA, Segrate (MI), Italy C. Albrecht, S. Barbanotti, A. Bellandi, J. Branlard, K. Jensch, L. Lilje DESY, Hamburg, Germany C. Cloué, T. Trublet CEA/IRFU, Gif-sur-Yvette, France C. Madec CEA, Gif-sur-Yvette, France
	In the European-XFEL superconducting linac, mechanical frequency tuners equipped with stepper motors and piezoelectric actuators provide cold tuning of each of the 768 1.3 GHz cavities. More than 820 complete tuning systems were fabricated and pre-assembled in industry, tested at several stages before and after assembly and successfully commissioned during cryo-module cold tests at AMTF (DESY). Quality control strategy adopted to preserve the well-assessed tuner reliability through such a large-scale industrial production is critically reviewed and the lessons learned are presented in this paper. The statistical analysis of the large set of data acquired up to the recent commissioning of the entire linac is then summarized.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-MOPB076
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

CEA Cryomodules Design for SARAF Phase 2

70

C. Madec
CEA, Gif-sur-Yvette, France
N. Bazin, D. Chirpaz-Cerbat, R. Cubizolles
CEA/IRFU, Gif-sur-Yvette, France
P. Brédy
CEA/DSM/IRFU, France
R. Bruce, P. Hardy, F. Leseigneur, Th. Plaisant, J. Plouin
CEA/DRF/IRFU, Gif-sur-Yvette, France

CEA is committed to delivering a Medium Energy Beam Transfer line and a superconducting linac (SCL) for SARAF accelerator in order to accelerate 5mA beam of either protons from 1.3 MeV to 35 MeV or deuterons from 2.6 MeV to 40.1 MeV. The SCL consists in 4 cryomodules separated by warm diagnostics housing beam diagnostics. The first two identical cryomodules host 6 half-wave resonator (HWR) low beta cavities (β = 0.091), 176 MHz. The last two identical cryomodules are equipped with 7 HWR high-beta cavities (β = 0.181), 176 MHz. The beam is focused through superconducting solenoids located between cavities housing steering coils. A Beam Position Monitor is placed upstream each solenoid. A diagnostic box containing a beam profiler and a vacuum pump will be placed at the end of each cryomodule. The cryomodules and the warm sections are being designed. These studies will be presented in this poster.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-MOPB011

Export •

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

MOPB076

Analysis of the Production, Installation and Commissioning of the European-XFEL Frequency Tuners

235

R. Paparella, A. Bosotti, D. Sertore
INFN/LASA, Segrate (MI), Italy
C. Albrecht, S. Barbanotti, A. Bellandi, J. Branlard, K. Jensch, L. Lilje
DESY, Hamburg, Germany
C. Cloué, T. Trublet
CEA/IRFU, Gif-sur-Yvette, France
C. Madec
CEA, Gif-sur-Yvette, France

In the European-XFEL superconducting linac, mechanical frequency tuners equipped with stepper motors and piezoelectric actuators provide cold tuning of each of the 768 1.3 GHz cavities. More than 820 complete tuning systems were fabricated and pre-assembled in industry, tested at several stages before and after assembly and successfully commissioned during cryo-module cold tests at AMTF (DESY). Quality control strategy adopted to preserve the well-assessed tuner reliability through such a large-scale industrial production is critically reviewed and the lessons learned are presented in this paper. The statistical analysis of the large set of data acquired up to the recent commissioning of the entire linac is then summarized.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-MOPB076

Export •

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