IBIC2014 - List of Authors (Hunziker, S.)

Paper	Title	Page
MOCZB2	Reference Distribution and Synchronization System for SwissFEL: Concept and First Results	29
	S. Hunziker, V.R. Arsov, F. Buechi, M.G. Kaiser, A. Romann, V. Schlott PSI, Villigen PSI, Switzerland P. Orel, S. Zorzut I-Tech, Solkan, Slovenia
	The development of the reference distribution and synchronization system for SwissFEL is driven by ultra-high reference signal stability of SwissFEL LLRF-, beam arrival time monitors (BAM) and laser systems on one hand and cost issues, high reliability/availability and flexibility on the other. Key requirements are down to sub-10fs rms short term as well as sub-10fs peak-peak long term temporal stability for the most critical clients. The system essentially consists of an optical master oscillator with a fiber power amplifier and splitter, from which mutually phase locked optical reference pulses as well as RF reference signals are derived. The former are directly transmitted to the pulsed laser and BAM clients over group delay stabilized fiber-optic links whereas the latter are transmitted via newly developed group delay stabilized radio-over-fiber (RoF) links. Both s- and c-band reference signals use s-band RoF links, whereupon the c-band receiver incorporates an additional ultra-low drift frequency doubler. Furthermore, ultra-low jitter analog laser phase lock loops have been built and digital ones are under development. We will present concepts and first results of sub-10fs rms jitter and 20fs peak-peak long term drift subsystems, as e.g. RoF links, tested in the SwissFEL injector test facility.
	Slides MOCZB2 [2.372 MB]
Export •	reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)

MOPF31	Overview of Beam Instrumentation Activities for SwissFEL	119
	R. Ischebeck, R. Abela, F. Ardana-Lamas, V.R. Arsov, R. Baldinger, H.-H. Braun, M. Calvi, R. Ditter, C. Erny, F. Frei, R. Ganter, I. Gorgisyan, C.P. Hauri, S. Hunziker, P.N. Juranic, B. Keil, W. Koprek, R. Kramert, D. Llorente Sancho, F. Löhl, F. Marcellini, G. Marinkovic, B. Monoszlai, G.L. Orlandi, C. Ozkan, L. Patthey, M. Pedrozzi, P. Pollet, M. Radovic, L. Rivkin, M. Roggli, M. Rohrer, V. Schlott, A.G. Stepanov, J. Stettler PSI, Villigen PSI, Switzerland F. Ardana-Lamas, I. Gorgisyan, C.P. Hauri, L. Rivkin EPFL, Lausanne, Switzerland P. Peier DESY, Hamburg, Germany
	SwissFEL will provide users with brilliant X-ray pulses in 2017. A comprehensive suite of diagnostics is needed for the initial commissioning, for changes to the operating point, and for feedbacks. The development of instrumentation for SwissFEL is well underway, and solutions have been identified for most diagnostics systems. I will present here an overview of the instrumentation for SwissFEL, and give details on some recent developments.
	Poster MOPF31 [4.418 MB]
Export •	reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)

WEPD10	Front End Concept for a Wake Field Monitor	660
	M.M. Dehler, S. Hunziker PSI, Villigen PSI, Switzerland M. Leich PSI, Villigen, Villigen, Switzerland
	Funding: EuCARD2 work package 12 Wake field monitors (WFMs) are used to directly measure the alignment between beam and RF accelerating structure via the transverse higher mode spectrum. As a sub task of the EuCARD2 project, we are developing a front end for the monitors of the multipurpose X band structure installed at the SwissFEL Injector Test facility SITF at PSI. We plan to use electro optical technology offering strong advantages in the robustness to interference and radiation, and in the ease of signal transport. We present the concept of the device, discuss the theoretical performance in terms of noise. For a proof of principle, we built a basic system, which we tested together with the existing monitors with beam at SITF.
Export •	reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)

Paper

Title

Page

Reference Distribution and Synchronization System for SwissFEL: Concept and First Results

29

S. Hunziker, V.R. Arsov, F. Buechi, M.G. Kaiser, A. Romann, V. Schlott
PSI, Villigen PSI, Switzerland
P. Orel, S. Zorzut
I-Tech, Solkan, Slovenia

The development of the reference distribution and synchronization system for SwissFEL is driven by ultra-high reference signal stability of SwissFEL LLRF-, beam arrival time monitors (BAM) and laser systems on one hand and cost issues, high reliability/availability and flexibility on the other. Key requirements are down to sub-10fs rms short term as well as sub-10fs peak-peak long term temporal stability for the most critical clients. The system essentially consists of an optical master oscillator with a fiber power amplifier and splitter, from which mutually phase locked optical reference pulses as well as RF reference signals are derived. The former are directly transmitted to the pulsed laser and BAM clients over group delay stabilized fiber-optic links whereas the latter are transmitted via newly developed group delay stabilized radio-over-fiber (RoF) links. Both s- and c-band reference signals use s-band RoF links, whereupon the c-band receiver incorporates an additional ultra-low drift frequency doubler. Furthermore, ultra-low jitter analog laser phase lock loops have been built and digital ones are under development. We will present concepts and first results of sub-10fs rms jitter and 20fs peak-peak long term drift subsystems, as e.g. RoF links, tested in the SwissFEL injector test facility.

Slides MOCZB2 [2.372 MB]

Export •

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

MOPF31

Overview of Beam Instrumentation Activities for SwissFEL

119

R. Ischebeck, R. Abela, F. Ardana-Lamas, V.R. Arsov, R. Baldinger, H.-H. Braun, M. Calvi, R. Ditter, C. Erny, F. Frei, R. Ganter, I. Gorgisyan, C.P. Hauri, S. Hunziker, P.N. Juranic, B. Keil, W. Koprek, R. Kramert, D. Llorente Sancho, F. Löhl, F. Marcellini, G. Marinkovic, B. Monoszlai, G.L. Orlandi, C. Ozkan, L. Patthey, M. Pedrozzi, P. Pollet, M. Radovic, L. Rivkin, M. Roggli, M. Rohrer, V. Schlott, A.G. Stepanov, J. Stettler
PSI, Villigen PSI, Switzerland
F. Ardana-Lamas, I. Gorgisyan, C.P. Hauri, L. Rivkin
EPFL, Lausanne, Switzerland
P. Peier
DESY, Hamburg, Germany

SwissFEL will provide users with brilliant X-ray pulses in 2017. A comprehensive suite of diagnostics is needed for the initial commissioning, for changes to the operating point, and for feedbacks. The development of instrumentation for SwissFEL is well underway, and solutions have been identified for most diagnostics systems. I will present here an overview of the instrumentation for SwissFEL, and give details on some recent developments.

Poster MOPF31 [4.418 MB]

Export •

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

WEPD10

Front End Concept for a Wake Field Monitor

660

M.M. Dehler, S. Hunziker
PSI, Villigen PSI, Switzerland
M. Leich
PSI, Villigen, Villigen, Switzerland

Funding: EuCARD2 work package 12
Wake field monitors (WFMs) are used to directly measure the alignment between beam and RF accelerating structure via the transverse higher mode spectrum. As a sub task of the EuCARD2 project, we are developing a front end for the monitors of the multipurpose X band structure installed at the SwissFEL Injector Test facility SITF at PSI. We plan to use electro optical technology offering strong advantages in the robustness to interference and radiation, and in the ease of signal transport. We present the concept of the device, discuss the theoretical performance in terms of noise. For a proof of principle, we built a basic system, which we tested together with the existing monitors with beam at SITF.

Export •

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