IBIC2014 - List of Authors (Simon, C.S.)

Paper	Title	Page
TUPF04	Numerical Calculations for the FAIR Proton Linac BPMs	303
	C.S. Simon CEA/DSM/IRFU, France M.H. Almalki, P. Forck, W. Kaufmann, T. Sieber GSI, Darmstadt, Germany V. Bellego CEA/IRFU, Gif-sur-Yvette, France
	Fourteen Beam Position Monitors (BPMs) will be installed along the FAIR Proton LINAC. These monitors will be used to determine the beam position, the relative beam current and the mean beam energy by time of flight (TOF). A capacitive button type pickup was chosen for its easy mechanical realization and for the short insertion length which is important for the four BPMs locations of the inter-tank sections between the CH-cavities. Depending on the location, the BPM design has to be optimized, taking into account an energy range from 3 MeV to 70 MeV, limited space for installation and a 30 mm or 50 mm beam pipe aperture. This paper reports wake field numerical simulations performed by the code CST PARTICLE STUDIO to design and characterize the BPMs. Time of response of monitors are presented and results of calculations for various pickup-geometries are discussed taking into account different beam velocities.
Export •	reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)

TUPF05	Production Process for the European XFEL Re-Entrant Cavity BPM	307
	C.S. Simon, P. Carbonnier, P. Contrepois, F. Éozénou, Y. Gasser, O. Napoly, J. Novo, C. Servouin CEA/DSM/IRFU, France C. Boulch, Y. Gasser CEA/IRFU, Gif-sur-Yvette, France P. Daniel-Thomas, F. Gouit CEA, Gif-sur-Yvette, France J. Kruse, D. Nölle, M. Schalwat, S. Vilcins DESY, Hamburg, Germany N. Rouvière IPN, Orsay, France
	As In-Kind contributor to the E-XFEL project, CEA is committed to the procurement of around one third (31) cold beam position monitors (BPM) of the re-entrant RF cavities type and to the assembly on the Saclay site of the 101 cryomodules of the superconducting linac. Each cryomodule is equipped with a beam position monitor connected to a quadrupole at the high-energy end of the cavity string. The industrial process of those BPMs, used in an ultra-clean environment at cryogenic temperature, includes several steps and involves a quality control in collaboration with industrial partners. This paper describes the different steps of the re-entrant cavity BPM fabrication process: machining, copper coating, thermal treatment, EB welding, cleaning and mounting in clean room on the quadrupole. Problems encountered and the lessons learnt will be also reported.
Export •	reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)

Paper

Title

Page

Numerical Calculations for the FAIR Proton Linac BPMs

303

C.S. Simon
CEA/DSM/IRFU, France
M.H. Almalki, P. Forck, W. Kaufmann, T. Sieber
GSI, Darmstadt, Germany
V. Bellego
CEA/IRFU, Gif-sur-Yvette, France

Fourteen Beam Position Monitors (BPMs) will be installed along the FAIR Proton LINAC. These monitors will be used to determine the beam position, the relative beam current and the mean beam energy by time of flight (TOF). A capacitive button type pickup was chosen for its easy mechanical realization and for the short insertion length which is important for the four BPMs locations of the inter-tank sections between the CH-cavities. Depending on the location, the BPM design has to be optimized, taking into account an energy range from 3 MeV to 70 MeV, limited space for installation and a 30 mm or 50 mm beam pipe aperture. This paper reports wake field numerical simulations performed by the code CST PARTICLE STUDIO to design and characterize the BPMs. Time of response of monitors are presented and results of calculations for various pickup-geometries are discussed taking into account different beam velocities.

Export •

reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)

TUPF05

Production Process for the European XFEL Re-Entrant Cavity BPM

307

C.S. Simon, P. Carbonnier, P. Contrepois, F. Éozénou, Y. Gasser, O. Napoly, J. Novo, C. Servouin
CEA/DSM/IRFU, France
C. Boulch, Y. Gasser
CEA/IRFU, Gif-sur-Yvette, France
P. Daniel-Thomas, F. Gouit
CEA, Gif-sur-Yvette, France
J. Kruse, D. Nölle, M. Schalwat, S. Vilcins
DESY, Hamburg, Germany
N. Rouvière
IPN, Orsay, France

As In-Kind contributor to the E-XFEL project, CEA is committed to the procurement of around one third (31) cold beam position monitors (BPM) of the re-entrant RF cavities type and to the assembly on the Saclay site of the 101 cryomodules of the superconducting linac. Each cryomodule is equipped with a beam position monitor connected to a quadrupole at the high-energy end of the cavity string. The industrial process of those BPMs, used in an ultra-clean environment at cryogenic temperature, includes several steps and involves a quality control in collaboration with industrial partners. This paper describes the different steps of the re-entrant cavity BPM fabrication process: machining, copper coating, thermal treatment, EB welding, cleaning and mounting in clean room on the quadrupole. Problems encountered and the lessons learnt will be also reported.

Export •

reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)