IBIC2015 - List of Authors (Marinkovic, G.)

Paper	Title	Page
MOPB050	Overview of Applications and Synergies of a Generic FPGA-Based Beam Diagnostics Electronics Platform at SwissFEL	165
	W. Koprek, B. Keil, G. Marinkovic PSI, Villigen PSI, Switzerland
	For SwissFEL electron beam diagnostics, we combine application-specific detectors and front-end electronics with a common solution for digitization, interfacing and FPGA-based digital signal processing. Many key components and standards we use were initially developed by PSI for the European XFEL BPM system, but are equally suited for a broad range of SwissFEL diagnostics systems with little or no modifications. Examples are e.g. the FPGA signal processing hardware and firmware/software, ADC and DAC boards, interface boards or peak detection front-end electronics. By following a modular generic hardware and firmware/software design approach, we can cover a larger number of different monitor types with moderate development effort. Applications of our generic platform include BPMs, bunch length monitors, beam arrival time monitors, beam loss monitors, and digital laser phase locked loops (PLLs). This paper gives an overview of the design, present and future applications of our generic platform, discussing the synergies and differences of the required hardware, firmware and embedded software solutions.
	Poster MOPB050 [0.376 MB]
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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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TUPB064	Status of The European XFEL Transverse Intra Bunch Train Feedback System	492
	B. Keil, R. Baldinger, R. Ditter, M. Gloor, W. Koprek, F. Marcellini, G. Marinkovic, M. Roggli, M. Rohrer, M. Stadler, D.M. Treyer PSI, Villigen PSI, Switzerland
	Funding: This work was partially funded by the Swiss State Secretariat for Education, Research and Innovation SERI The European XFEL (E-XFEL) will have a transverse intra bunch train feedback system (IBFB) that is capable of correcting the beam position of individual bunches in the ~650us long bunch train, with a minimal bunch spacing of 222ns. The IBFB measures the beam positions with high-resolution cavity BPMs, and corrects the position of each bunch via stripline kicker magnets driven by class AB solid-state RF power amplifiers. The production of the IBFB BPM pickups is finished, and a pre-series version of the low-latency BPM electronics, including firmware and software, has been successfully tested with beam. After successful production and tests of prototypes, the series production of IBFB kicker magnets and RF power amplifiers is in progress. The IBFB feedback electronics hardware development is mainly finished, while firmware and software development is still in progress. This report summarizes the latest design status and test results of the different IBFB system components.
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TUPB065	Status of The SwissFEL BPM System	497
	B. Keil, R. Baldinger, R. Ditter, D. Engeler, W. Koprek, R. Kramert, A. Malatesta, F. Marcellini, G. Marinkovic, M. Roggli, M. Rohrer, M. Stadler PSI, Villigen PSI, Switzerland
	SwissFEL is a 5.8GeV free electron laser facility presently under construction at PSI. The electron beam position will be measured by three types of cavity beam position monitors. For the injector, linac and beam transfer lines, low-Q 3.3GHz cavity BPMs with 38mm and 16mm aperture (CBPM38 and CBPM16) will be used to measure the position and charge of two bunches with 28ns spacing individually. A fast kicker system distributes each bunch to a different undulator line, where 4.9GHz high-Q cavity BPMs with 8mm aperture (CBPM8) are used in the undulator intersections. The production of the CBPM38 pickups is finished, while the CBPM16 production is in progress. For CBPM8, a prototype pickup has been successfully tested, and a 2nd pre-series prototype with reduced dark-current sensitivity is currently in production. The development of the common 3.3GHz CBPM electronics for CBPM38 and CBPM16 is finished, while the CBPM8 electronics is currently in the prototyping phase. This paper gives an overview of the present pickup, electronics, firmware and software design and production status, including test results and methods to control and maintain the quality during series production.
	Poster TUPB065 [0.783 MB]
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Paper

Title

Page

Overview of Applications and Synergies of a Generic FPGA-Based Beam Diagnostics Electronics Platform at SwissFEL

165

W. Koprek, B. Keil, G. Marinkovic
PSI, Villigen PSI, Switzerland

For SwissFEL electron beam diagnostics, we combine application-specific detectors and front-end electronics with a common solution for digitization, interfacing and FPGA-based digital signal processing. Many key components and standards we use were initially developed by PSI for the European XFEL BPM system, but are equally suited for a broad range of SwissFEL diagnostics systems with little or no modifications. Examples are e.g. the FPGA signal processing hardware and firmware/software, ADC and DAC boards, interface boards or peak detection front-end electronics. By following a modular generic hardware and firmware/software design approach, we can cover a larger number of different monitor types with moderate development effort. Applications of our generic platform include BPMs, bunch length monitors, beam arrival time monitors, beam loss monitors, and digital laser phase locked loops (PLLs). This paper gives an overview of the design, present and future applications of our generic platform, discussing the synergies and differences of the required hardware, firmware and embedded software solutions.

Poster MOPB050 [0.376 MB]

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

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)

TUPB064

Status of The European XFEL Transverse Intra Bunch Train Feedback System

492

B. Keil, R. Baldinger, R. Ditter, M. Gloor, W. Koprek, F. Marcellini, G. Marinkovic, M. Roggli, M. Rohrer, M. Stadler, D.M. Treyer
PSI, Villigen PSI, Switzerland

Funding: This work was partially funded by the Swiss State Secretariat for Education, Research and Innovation SERI
The European XFEL (E-XFEL) will have a transverse intra bunch train feedback system (IBFB) that is capable of correcting the beam position of individual bunches in the ~650us long bunch train, with a minimal bunch spacing of 222ns. The IBFB measures the beam positions with high-resolution cavity BPMs, and corrects the position of each bunch via stripline kicker magnets driven by class AB solid-state RF power amplifiers. The production of the IBFB BPM pickups is finished, and a pre-series version of the low-latency BPM electronics, including firmware and software, has been successfully tested with beam. After successful production and tests of prototypes, the series production of IBFB kicker magnets and RF power amplifiers is in progress. The IBFB feedback electronics hardware development is mainly finished, while firmware and software development is still in progress. This report summarizes the latest design status and test results of the different IBFB system components.

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

TUPB065

Status of The SwissFEL BPM System

497

B. Keil, R. Baldinger, R. Ditter, D. Engeler, W. Koprek, R. Kramert, A. Malatesta, F. Marcellini, G. Marinkovic, M. Roggli, M. Rohrer, M. Stadler
PSI, Villigen PSI, Switzerland

SwissFEL is a 5.8GeV free electron laser facility presently under construction at PSI. The electron beam position will be measured by three types of cavity beam position monitors. For the injector, linac and beam transfer lines, low-Q 3.3GHz cavity BPMs with 38mm and 16mm aperture (CBPM38 and CBPM16) will be used to measure the position and charge of two bunches with 28ns spacing individually. A fast kicker system distributes each bunch to a different undulator line, where 4.9GHz high-Q cavity BPMs with 8mm aperture (CBPM8) are used in the undulator intersections. The production of the CBPM38 pickups is finished, while the CBPM16 production is in progress. For CBPM8, a prototype pickup has been successfully tested, and a 2nd pre-series prototype with reduced dark-current sensitivity is currently in production. The development of the common 3.3GHz CBPM electronics for CBPM38 and CBPM16 is finished, while the CBPM8 electronics is currently in the prototyping phase. This paper gives an overview of the present pickup, electronics, firmware and software design and production status, including test results and methods to control and maintain the quality during series production.

Poster TUPB065 [0.783 MB]

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