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HK: Fachverband Physik der Hadronen und Kerne

HK 42: Instrumentation 14

HK 42.2: Vortrag

Mittwoch, 25. März 2015, 14:45–15:00, M/HS2

CST CALCULATIONS FOR THE LAYOUT OF A BUTTON BPM SYSTEM FOR THE FAIR PROTON LINAC — •Mohammed Almalki — Planckstrasse 1, 64291 Darmstadt,

M. Almalki, P. Forck, W. Kaufmann and T. Sieber, C. Krüger, P. Kowina, O. Kester GSI, Darmstadt, Germany C. Simon, CEA-Saclay/DSM/Irfu, Gif sur Yvette, France,

At the planned Proton LINAC at the FAIR facility, four-fold button Beam Position Monitor (BPM) will be installed at 14 locations along the 30 m long FAIR pLINAC. These monitors will be used to determine the beam position, the relative beam current and the mean beam energy by time of flight (TOF). 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 at the 30 mm or 50 mm beam pipe aperture. Detailed simulations of the button parameters with the finite element code CST were executed including signal shape analysis, impedance matching characteristic and capacitance calculations. Moreover, time and frequency-domain response of the BPM output signals reflecting the BPMs interaction with the beam, nonlinearity, sensitivity and position map for different geometries and beam parameters were performed. The results of these simulations and the related measurements are presented.

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DPG-Physik > DPG-Verhandlungen > 2015 > Heidelberg