LINAC2014 - List of Keywords (beam-diagnostic)

Paper	Title	Other Keywords	Page
THPP063	Beam Diagnostics Layout for the FAIR Proton Linac	linac, proton, diagnostics, emittance	998
	T. Sieber, M.H. Almalki, C. Dorn, J. Fils, P. Forck, R. Haseitl, W. Kaufmann, W. Vinzenz, M. Witthaus, B. Zwicker GSI, Darmstadt, Germany C.S. Simon CEA/DSM/IRFU, France
	The planned proton Linac for FAIR (Facility of Antiproton an Ion Research) will be - additionally to the existing GSI UNILAC - a second injector for the FAIR accelerator chain. It will inject a 70 MeV, (up to) 70 mA proton beam with a nominal pulse length of 30 us into the SIS18. The beam diagnostics system for the proton Linac comprises nine current transformers for pulse current determination and fourteen BPMs for position, mean beam energy and relative current measurement. SEM-Grids and stepping motor driven slits will be used for profile as well as for emittance measurements. A wire-based bunch shape monitor is foreseen, additionally a bending magnet for longitudinal emittance determination during commissioning. Presently, main efforts are conducted concerning the BPM system. Detailed signal simulations with the finite element code CST are performed. An electronics board using digital signal processing is evaluated by detailed lab-based characterization and beam-based measurements at the UNILAC. In this paper we present the general layout and the status of the diagnostics systems as well as key results from our measurements and simulations.

Paper

Title

Other Keywords

Page

THPP063

Beam Diagnostics Layout for the FAIR Proton Linac

linac, proton, diagnostics, emittance

998

T. Sieber, M.H. Almalki, C. Dorn, J. Fils, P. Forck, R. Haseitl, W. Kaufmann, W. Vinzenz, M. Witthaus, B. Zwicker
GSI, Darmstadt, Germany
C.S. Simon
CEA/DSM/IRFU, France

The planned proton Linac for FAIR (Facility of Antiproton an Ion Research) will be - additionally to the existing GSI UNILAC - a second injector for the FAIR accelerator chain. It will inject a 70 MeV, (up to) 70 mA proton beam with a nominal pulse length of 30 us into the SIS18. The beam diagnostics system for the proton Linac comprises nine current transformers for pulse current determination and fourteen BPMs for position, mean beam energy and relative current measurement. SEM-Grids and stepping motor driven slits will be used for profile as well as for emittance measurements. A wire-based bunch shape monitor is foreseen, additionally a bending magnet for longitudinal emittance determination during commissioning. Presently, main efforts are conducted concerning the BPM system. Detailed signal simulations with the finite element code CST are performed. An electronics board using digital signal processing is evaluated by detailed lab-based characterization and beam-based measurements at the UNILAC. In this paper we present the general layout and the status of the diagnostics systems as well as key results from our measurements and simulations.