DIPAC2011 - List of Authors (Ruf, M.)

Paper	Title	Page
MOPD20	Applicability of the AM-PM Conversion Method to Beam Position Monitoring of Electron Beams accelerated in S-Band Frequency Range	86
	M. Ruf, P. Quednau, L. Schmidt U. Erlangen-Nurnberg LHFT, Erlangen, Germany S. Setzer Siemens Med, Erlangen, Germany
	Funding: Work supported by Bayerische Forschungsstiftung in the project "MEDieMAS - Effiziente Bestrahlungsgeräte für Krebstherapie (Efficient radiation systems for cancer therapy)", file number AZ-735-07 In this paper, the applicability of the amplitude-to-phase-conversion (AM-PM) method to beam position monitoring (BPM) purposes in S-Band frequency range is investigated. The proof-of-principle experiment is done by AM-PM-processing of capacitive pickup signals generated by a 6 MeV S-Band electron beam. It is demonstrated that the AM-PM-output pulsed DC signal is proportional to transverse beam offsets. Furthermore, design considerations and selection criteria of appropriate RF devices are described. Additionally, results of cold measurements of a planar 2-channel AM-PM-receiver module are presented indicating that the applicability will also be given for even higher frequency ranges.

Paper

Title

Page

Applicability of the AM-PM Conversion Method to Beam Position Monitoring of Electron Beams accelerated in S-Band Frequency Range

86

M. Ruf, P. Quednau, L. Schmidt
U. Erlangen-Nurnberg LHFT, Erlangen, Germany
S. Setzer
Siemens Med, Erlangen, Germany

Funding: Work supported by Bayerische Forschungsstiftung in the project "MEDieMAS - Effiziente Bestrahlungsgeräte für Krebstherapie (Efficient radiation systems for cancer therapy)", file number AZ-735-07
In this paper, the applicability of the amplitude-to-phase-conversion (AM-PM) method to beam position monitoring (BPM) purposes in S-Band frequency range is investigated. The proof-of-principle experiment is done by AM-PM-processing of capacitive pickup signals generated by a 6 MeV S-Band electron beam. It is demonstrated that the AM-PM-output pulsed DC signal is proportional to transverse beam offsets. Furthermore, design considerations and selection criteria of appropriate RF devices are described. Additionally, results of cold measurements of a planar 2-channel AM-PM-receiver module are presented indicating that the applicability will also be given for even higher frequency ranges.