IBIC2015 - List of Authors (Ischebeck, R.)

Paper	Title	Page
MOPB048	Design Concept for a THz Driven Streak Camera With Ultra High Resolution	156
	M.M. Dehler, F. Frei, R. Ischebeck, V. Schlott PSI, Villigen PSI, Switzerland J. Fabianska, T. Feurer, M. Hayati Universität Bern, Institute of Applied Physics, Bern, Switzerland
	The resolution of streak camera systems strongly depends on the slew rate of the deflecting element, being proportional to the amplitude and the frequency of the deflector. An attractive approach to reach femto and even sub-femtosecond resolution are THz driven electron streak cameras, which have been only recently proposed. Here, the ultra fast streaking field is generated by exciting a suitable resonant THz antenna, e.g. a split ring resonator with an intense THz pulse. With today's THz sources streak field amplitudes in excess of 1 GV/m are within reach. Here, we present the concept for a proof of principle system. The THz pulse will be generated by rectifying the pulse from an existing 800 nm laser system in a suitable crystal as LiNbO3. For the source of the electron beam to be streaked, we are exploring two options, first a DC driven photo gun with electron energies between 10 and 100 keV, and second an RF photo gun yielding a relativistic 6.5 MeV beam. We describe the setup of the system for both cases and present simulations of the beam dynamics.
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MOPB051	System Integration of SwissFEL Beam Loss Monitors	170
	P. Pollet, R. Ischebeck, D. Llorente Sancho, G. Marinkovic, C. Ozkan Loch, V. Schlott PSI, Villigen PSI, Switzerland
	Scintillator-based Beam Loss Monitors will be used at SwissFEL for monitoring the losses for optimising beam conditioning, beam measurements with the wire-scanner and Undulator protection. The optical signals from the scintillators will be detected by PMTs which are located outside the accelerator tunnel. The PMT control and signal conditioning is done via a front-end based on the PSI Analogue Carrier board. The PAC board allows for amplification/attenuation, offsetting and single-ended to differential conversion, while the Generic PSI Carrier (GPAC) board provides digitisation and FPGA-based post-processing, along with bridging the communication to EPICs controls. A fast algorithm was developed to process the signals and trigger the machine protection system (MPS) at 100Hz. The system integration of the BLMs and its results will be discussed in this paper.
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Paper

Title

Page

Design Concept for a THz Driven Streak Camera With Ultra High Resolution

156

M.M. Dehler, F. Frei, R. Ischebeck, V. Schlott
PSI, Villigen PSI, Switzerland
J. Fabianska, T. Feurer, M. Hayati
Universität Bern, Institute of Applied Physics, Bern, Switzerland

The resolution of streak camera systems strongly depends on the slew rate of the deflecting element, being proportional to the amplitude and the frequency of the deflector. An attractive approach to reach femto and even sub-femtosecond resolution are THz driven electron streak cameras, which have been only recently proposed. Here, the ultra fast streaking field is generated by exciting a suitable resonant THz antenna, e.g. a split ring resonator with an intense THz pulse. With today's THz sources streak field amplitudes in excess of 1 GV/m are within reach. Here, we present the concept for a proof of principle system. The THz pulse will be generated by rectifying the pulse from an existing 800 nm laser system in a suitable crystal as LiNbO3. For the source of the electron beam to be streaked, we are exploring two options, first a DC driven photo gun with electron energies between 10 and 100 keV, and second an RF photo gun yielding a relativistic 6.5 MeV beam. We describe the setup of the system for both cases and present simulations of the beam dynamics.

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MOPB051

System Integration of SwissFEL Beam Loss Monitors

170

P. Pollet, R. Ischebeck, D. Llorente Sancho, G. Marinkovic, C. Ozkan Loch, V. Schlott
PSI, Villigen PSI, Switzerland

Scintillator-based Beam Loss Monitors will be used at SwissFEL for monitoring the losses for optimising beam conditioning, beam measurements with the wire-scanner and Undulator protection. The optical signals from the scintillators will be detected by PMTs which are located outside the accelerator tunnel. The PMT control and signal conditioning is done via a front-end based on the PSI Analogue Carrier board. The PAC board allows for amplification/attenuation, offsetting and single-ended to differential conversion, while the Generic PSI Carrier (GPAC) board provides digitisation and FPGA-based post-processing, along with bridging the communication to EPICs controls. A fast algorithm was developed to process the signals and trigger the machine protection system (MPS) at 100Hz. The system integration of the BLMs and its results will be discussed in this paper.

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