IPAC2011 - List of Authors (Blell, U.)

Paper	Title	Page
MOPS054	Impedance of the Pulse Power Converter for the SIS100 Bipolar Extraction Kicker System	727
	K. Samuelsson, V. Hinrichsen TU Darmstadt, Darmstadt, Germany U. Blell, P.J. Spiller GSI, Darmstadt, Germany
	SIS100 will be operated with high intensity heavy-ion and proton beams. The reduction of ring impedances is therefore of great importance in order to avoid coherent beam instabilities. The kicker system is one of the main contributors to the overall ring impedance in SIS100. This paper will focus on the contribution of the external network to the kicker impedance. Calculations as well as experimental impedance measurements of the network contribution have already been carried out for the SIS18 and ESR kickers. The SIS100 will be equipped with a bipolar kicker system, which uses a Pulse Forming Network (PFN) as energy storage. For potential detachment purposes an insulation transformer will be installed. Since this setup is new in several ways it is important to know its contribution to the coupling impedance of the kicker system. In this contribution the corresponding numerical calculation is presented.

Paper

Title

Page

Impedance of the Pulse Power Converter for the SIS100 Bipolar Extraction Kicker System

727

K. Samuelsson, V. Hinrichsen
TU Darmstadt, Darmstadt, Germany
U. Blell, P.J. Spiller
GSI, Darmstadt, Germany

SIS100 will be operated with high intensity heavy-ion and proton beams. The reduction of ring impedances is therefore of great importance in order to avoid coherent beam instabilities. The kicker system is one of the main contributors to the overall ring impedance in SIS100. This paper will focus on the contribution of the external network to the kicker impedance. Calculations as well as experimental impedance measurements of the network contribution have already been carried out for the SIS18 and ESR kickers. The SIS100 will be equipped with a bipolar kicker system, which uses a Pulse Forming Network (PFN) as energy storage. For potential detachment purposes an insulation transformer will be installed. Since this setup is new in several ways it is important to know its contribution to the coupling impedance of the kicker system. In this contribution the corresponding numerical calculation is presented.