IBIC2016 - List of Authors (Simon, C.)

Paper	Title	Page
MOBL02	First Experience with the Standard Diagnostics at the European XFEL Injector	14
	D. Lipka, A. Affeldt, A. Awwad, N. Baboi, B. Barret, B. Beutner, F. Brinker, W. Decking, A. Delfs, M. Drewitsch, O. Frank, C. Gerth, V. Gharibyan, O. Hensler, M. Hoeptner, M. Holz, K.K. Knaack, F. Krivan, I. Krouptchenkov, J. Kruse, G. Kube, B. Lemcke, T. Lensch, J. Liebing, T. Limberg, B. Lorbeer, J. Lund-Nielsen, S.M. Meykopff, B. Michalek, J. Neugebauer, Re. Neumann, Ru. Neumann, D. Nölle, M. Pelzer, G. Petrosyan, Z. Pisarov, P. Pototzki, G. Priebe, K.R. Rehlich, D. Renner, V. Rybnikov, G. Schlesselmann, F. Schmidt-Föhre, M. Scholz, L. Shi, P.A. Smirnov, H. Sokolinski, C. Stechmann, M. Steckel, R. Susen, H. Tiessen, S. Vilcins, T. Wamsat, N. Wentowski, M. Werner, Ch. Wiebers, J. Wilgen, K. Wittenburg, R. Zahn, A. Ziegler DESY, Hamburg, Germany R. Baldinger, R. Ditter, B. Keil, W. Koprek, R. Kramert, G. Marinkovic, M. Roggli, M. Stadler, D.M. Treyer PSI, Villigen PSI, Switzerland A. Ignatenko DESY Zeuthen, Zeuthen, Germany A. Kaukher XFEL. EU, Hamburg, Germany O. Napoly, C. Simon CEA/DSM/IRFU, France
	The injector of the European XFEL is in operation since December 2015. It includes, beside the gun and the accelerating section, containing 1.3 and a 3.9 GHz accelerating module, a variety of standard diagnostics systems specially designed for this facility. With very few exceptions, all types of diagnostics systems are installed in the injector. Therefore the operation of the injector is served to validate and prove the diagnostics characteristics for the complete European XFEL. Most of the standard diagnostics has been available for the start of beam operation and showed the evidence of first beam along the beam line. In the following months the diagnostics has been optimized and used for improvements of beam quality. First operational experiences and results from the standard beam diagnostics in the injector of the European XFEL will be reported in this contribution.
	Slides MOBL02 [5.844 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOBL02
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MOPG79	Scintillating Screens Investigations with Proton Beams at 30 keV and 3 MeV	273
	C. Simon, F. Harrault, F. Senée, O. Tuske CEA/DSM/IRFU, France P. Ausset IPN, Orsay, France E. Bordas, F. Leprêtre, Y. Serruys CEA, Gif-sur-Yvette, France J. Fils GSI, Darmstadt, Germany
	Luminescent screens hit by accelerated charged particle beams are commonly used as beam diagnostics to produce a visible emitted light, which can be sensed by a camera. In order to investigate the characteristics of the luminescence response of several scintillators, the beam shape and the observation of the transverse position, experiments were done with different low intensity proton beams produced by two different test benches. This study is motivated by the need to identify scintilla-tor materials for the development of a 4-dimensional emittancemeter which will allow the characterization of the beams, in particular the emittance measurement (size, angular divergence). This paper describes the experimental setups and our investigations of the optical properties of various scintillating materials at two different proton beam energies respectively about 30 keV and 3 MeV. The light produced by these screens is characterized by yield, flux of the emitted light versus the beam intensity, time response, and long life-time and they are compared.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG79
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TUPG17	Design and Beam Test Results of the Reentrant Cavity BPM for the European XFEL	356
	C. Simon, M. Luong, O. Napoly CEA/DSM/IRFU, France N. Baboi, D. Lipka, D. Nölle, G. Petrosyan DESY, Hamburg, Germany R. Baldinger, B. Keil, G. Marinkovic, M. Roggli PSI, Villigen PSI, Switzerland M. Baudrier CEA/DRF/IRFU, Gif-sur-Yvette, France L. Maurice CEA/IRFU, Gif-sur-Yvette, France
	The European X-ray Free Electron Laser (E-XFEL) will use reentrant beam position monitors (BPMs) in about one quarter of the superconducting cryomodules. This BPM is composed of a radiofrequency (RF) reentrant cavity with 4 antennas and an RF signal processing electronics. Hybrid couplers, near the cryomodules, generate the analog sum and difference of the raw pickup signals coming from two pairs of opposite RF feedthroughs. The resulting sum (proportional to bunch charge) and difference signals (proportional to the product of position and charge) are then filtered, down-converted by an RF front-end (RFFE), digitized, and digitally processed on an FPGA board. The task of CEA/Saclay was to cover the design, fabrication and beam tests and deliver these reentrant cavity BPMs for the E-XFEL linac in collaboration with DESY and PSI. This paper gives an overview of the reentrant BPM sys-tem with focus on the last version of the RF front end electronics, signal processing, and overall system performance. Measurement results achieved with prototypes installed at the DESY FLASH2 linac and in the E-XFEL injector are presented.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG17
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Paper

Title

Page

First Experience with the Standard Diagnostics at the European XFEL Injector

14

D. Lipka, A. Affeldt, A. Awwad, N. Baboi, B. Barret, B. Beutner, F. Brinker, W. Decking, A. Delfs, M. Drewitsch, O. Frank, C. Gerth, V. Gharibyan, O. Hensler, M. Hoeptner, M. Holz, K.K. Knaack, F. Krivan, I. Krouptchenkov, J. Kruse, G. Kube, B. Lemcke, T. Lensch, J. Liebing, T. Limberg, B. Lorbeer, J. Lund-Nielsen, S.M. Meykopff, B. Michalek, J. Neugebauer, Re. Neumann, Ru. Neumann, D. Nölle, M. Pelzer, G. Petrosyan, Z. Pisarov, P. Pototzki, G. Priebe, K.R. Rehlich, D. Renner, V. Rybnikov, G. Schlesselmann, F. Schmidt-Föhre, M. Scholz, L. Shi, P.A. Smirnov, H. Sokolinski, C. Stechmann, M. Steckel, R. Susen, H. Tiessen, S. Vilcins, T. Wamsat, N. Wentowski, M. Werner, Ch. Wiebers, J. Wilgen, K. Wittenburg, R. Zahn, A. Ziegler
DESY, Hamburg, Germany
R. Baldinger, R. Ditter, B. Keil, W. Koprek, R. Kramert, G. Marinkovic, M. Roggli, M. Stadler, D.M. Treyer
PSI, Villigen PSI, Switzerland
A. Ignatenko
DESY Zeuthen, Zeuthen, Germany
A. Kaukher
XFEL. EU, Hamburg, Germany
O. Napoly, C. Simon
CEA/DSM/IRFU, France

The injector of the European XFEL is in operation since December 2015. It includes, beside the gun and the accelerating section, containing 1.3 and a 3.9 GHz accelerating module, a variety of standard diagnostics systems specially designed for this facility. With very few exceptions, all types of diagnostics systems are installed in the injector. Therefore the operation of the injector is served to validate and prove the diagnostics characteristics for the complete European XFEL. Most of the standard diagnostics has been available for the start of beam operation and showed the evidence of first beam along the beam line. In the following months the diagnostics has been optimized and used for improvements of beam quality. First operational experiences and results from the standard beam diagnostics in the injector of the European XFEL will be reported in this contribution.

Slides MOBL02 [5.844 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOBL02

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPG79

Scintillating Screens Investigations with Proton Beams at 30 keV and 3 MeV

273

C. Simon, F. Harrault, F. Senée, O. Tuske
CEA/DSM/IRFU, France
P. Ausset
IPN, Orsay, France
E. Bordas, F. Leprêtre, Y. Serruys
CEA, Gif-sur-Yvette, France
J. Fils
GSI, Darmstadt, Germany

Luminescent screens hit by accelerated charged particle beams are commonly used as beam diagnostics to produce a visible emitted light, which can be sensed by a camera. In order to investigate the characteristics of the luminescence response of several scintillators, the beam shape and the observation of the transverse position, experiments were done with different low intensity proton beams produced by two different test benches. This study is motivated by the need to identify scintilla-tor materials for the development of a 4-dimensional emittancemeter which will allow the characterization of the beams, in particular the emittance measurement (size, angular divergence). This paper describes the experimental setups and our investigations of the optical properties of various scintillating materials at two different proton beam energies respectively about 30 keV and 3 MeV. The light produced by these screens is characterized by yield, flux of the emitted light versus the beam intensity, time response, and long life-time and they are compared.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG79

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPG17

Design and Beam Test Results of the Reentrant Cavity BPM for the European XFEL

356

C. Simon, M. Luong, O. Napoly
CEA/DSM/IRFU, France
N. Baboi, D. Lipka, D. Nölle, G. Petrosyan
DESY, Hamburg, Germany
R. Baldinger, B. Keil, G. Marinkovic, M. Roggli
PSI, Villigen PSI, Switzerland
M. Baudrier
CEA/DRF/IRFU, Gif-sur-Yvette, France
L. Maurice
CEA/IRFU, Gif-sur-Yvette, France

The European X-ray Free Electron Laser (E-XFEL) will use reentrant beam position monitors (BPMs) in about one quarter of the superconducting cryomodules. This BPM is composed of a radiofrequency (RF) reentrant cavity with 4 antennas and an RF signal processing electronics. Hybrid couplers, near the cryomodules, generate the analog sum and difference of the raw pickup signals coming from two pairs of opposite RF feedthroughs. The resulting sum (proportional to bunch charge) and difference signals (proportional to the product of position and charge) are then filtered, down-converted by an RF front-end (RFFE), digitized, and digitally processed on an FPGA board. The task of CEA/Saclay was to cover the design, fabrication and beam tests and deliver these reentrant cavity BPMs for the E-XFEL linac in collaboration with DESY and PSI. This paper gives an overview of the reentrant BPM sys-tem with focus on the last version of the RF front end electronics, signal processing, and overall system performance. Measurement results achieved with prototypes installed at the DESY FLASH2 linac and in the E-XFEL injector are presented.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG17

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)