ICALEPCS2017 - List of Keywords (photon)

Paper	Title	Other Keywords	Page
MOAPL01	The Control System for the Linear Accelerator at the European XFEL: Status and First Experiences	ion, controls, FEL, MMI	1
	T. Wilksen, A. Aghababyan, R. Bacher, P.K. Bartkiewicz, C. Behrens, T. Delfs, P. Duval, L. Fröhlich, W. Gerhardt, C. Gindler, O. Hensler, K. Hinsch, J.M. Jäger, R. Kammering, S. Karstensen, H. Kay, H. Kay, V. Kocharyan, A. Labudda, T. Limberg, S.M. Meykopff, A. Petrosyan, G. Petrosyan, L.P. Petrosyan, V. Petrosyan, P. Pototzki, K.R. Rehlich, G. Schlesselmann, E. Sombrowski, M. Staack, J. Szczesny, M. Walla, J. Wilgen, H. Wu DESY, Hamburg, Germany
	The European XFEL (E-XFEL) is a 3.4 km long X-ray Free-Electron Laser facility and consists of a superconducting, linear accelerator with initially three undulator beam lines. The construction and installation of the E-XFEL is being completed this year and commissioning is well underway. First photon beams are expected to be available for early users in the second half of 2017. This paper will focus on the control system parts for the linear accelerator with its more than 7 million parameters and highlight briefly its design and implementation. Namely the hardware framework based on the MicroTCA.4 standard, testing software concepts and components at real and virtual accelerator facilities and a well-established method for integrating high-level controls into the middle layer through a shot-synchronized data acquisition allowed for a rapid deployment and commissioning of the accelerator. Status and experiences from a technical and an operational point-of-view will be presented.
	Slides MOAPL01 [6.198 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-MOAPL01
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUBPA01	The Evolution of Component Database for APS Upgrade*	ion, database, framework, interface	192
	D.P. Jarosz, N.D. Arnold, J. Carwardine, G. Decker, N. Schwarz, S. Veseli ANL, Argonne, Illinois, USA
	Funding: [] Argonne National Laboratory's work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract DE-AC02-06CH11357.* The purpose of the Advanced Photon Source Upgrade (APS-U) project is to update the facility to take advantage of the multi-bend achromat (MBA) magnet lattices, which will result in narrowly focused x-ray beams of much higher brightness. The APS-U installation has a short schedule of one-year. In order to plan and execute a task of such complexity, a collaboration between many individuals of very diverse backgrounds must exist. The Component Database (CDB) has been created to aid in documenting and managing all the parts that will go into the upgraded facility. After initial deployment and use, it became clear that the system must become more flexible, as the engineers started requesting new features such as tracking inventory assemblies, supporting relationships between components, and several usability requests. Recently, a more generic database schema has been implemented. This allows for the addition of more functionality without needing to refactor the database. The topics discussed in this paper include advantages and challenges of a more generic schema, new functionality, and plans for future work.
	Slides TUBPA01 [0.770 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUBPA01
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPHA111	A Major Performance Upgrade to the Transverse Feedback System at the Advance Photon Source	ion, feedback, FPGA, operation	674
	N.P. DiMonte, C. Yao ANL, Argonne, Illinois, USA
	Funding: Work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. With the success and reliability of the transverse feedback system installed at the Advance Photon Source (APS), a major upgrade to expand the system is under way. The existing system is operating at a third of the storage ring bunch capacity, or 324 of the available 1296 bunches. This upgrade will allow the sampling of all 1296 bunches and make corrections for all selected bunches in a single storage ring turn. To facilitate this upgrade a new analog I/O board capable of 352 MHz operation was developed along with a revolution clock cleaning circuit. A 352MHz clock cleaning circuit was also required for the high-speed analog output circuit to maintain data integrity to the receiving DAC unit that is 61m away. This receiving DAC unit will have its transceiver data rate upgraded from 2.3Gbps to about 7Gbps transmitted over a fiber optic link. This paper discusses some of the challenges in reducing the clock jitter from both the system P0 bunch clock and the 352MHz clock along with the necessary FPGA hardware upgrades and algorithm changes, all of which is required for the success of this upgrade.
	Poster TUPHA111 [2.976 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA111
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEAPL07	On-line Optimization of European XFEL with OCELOT	ion, FEL, operation, controls	1038
	S.I. Tomin, G. Geloni XFEL. EU, Hamburg, Germany I.V. Agapov, W. Decking, M. Scholz, I. Zagorodnov DESY, Hamburg, Germany
	FEL tuning and optimization within the OCELOT framework has been implemented in 2015 and has been since used for SASE pulse energy optimization at FLASH and later at LCLS, as well as injection efficiency maximization in the Siberia-1 storage ring. For the European XFEL commissioning purposes the code was considerably improved and additional set of tools has been introduced. Here these tools and experi-ence of their use during the European XFEL commissioning and initial operation will be presented. Future devel-opment directions will be outlined.
	Talk as video stream: https://youtu.be/b97wcbuve4A
	Slides WEAPL07 [6.338 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-WEAPL07
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

MOAPL01

The Control System for the Linear Accelerator at the European XFEL: Status and First Experiences

ion, controls, FEL, MMI

1

T. Wilksen, A. Aghababyan, R. Bacher, P.K. Bartkiewicz, C. Behrens, T. Delfs, P. Duval, L. Fröhlich, W. Gerhardt, C. Gindler, O. Hensler, K. Hinsch, J.M. Jäger, R. Kammering, S. Karstensen, H. Kay, H. Kay, V. Kocharyan, A. Labudda, T. Limberg, S.M. Meykopff, A. Petrosyan, G. Petrosyan, L.P. Petrosyan, V. Petrosyan, P. Pototzki, K.R. Rehlich, G. Schlesselmann, E. Sombrowski, M. Staack, J. Szczesny, M. Walla, J. Wilgen, H. Wu
DESY, Hamburg, Germany

The European XFEL (E-XFEL) is a 3.4 km long X-ray Free-Electron Laser facility and consists of a superconducting, linear accelerator with initially three undulator beam lines. The construction and installation of the E-XFEL is being completed this year and commissioning is well underway. First photon beams are expected to be available for early users in the second half of 2017. This paper will focus on the control system parts for the linear accelerator with its more than 7 million parameters and highlight briefly its design and implementation. Namely the hardware framework based on the MicroTCA.4 standard, testing software concepts and components at real and virtual accelerator facilities and a well-established method for integrating high-level controls into the middle layer through a shot-synchronized data acquisition allowed for a rapid deployment and commissioning of the accelerator. Status and experiences from a technical and an operational point-of-view will be presented.

Slides MOAPL01 [6.198 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-MOAPL01

Export •

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

TUBPA01

The Evolution of Component Database for APS Upgrade*

ion, database, framework, interface

192

D.P. Jarosz, N.D. Arnold, J. Carwardine, G. Decker, N. Schwarz, S. Veseli
ANL, Argonne, Illinois, USA

Funding: [*] Argonne National Laboratory's work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract DE-AC02-06CH11357.
The purpose of the Advanced Photon Source Upgrade (APS-U) project is to update the facility to take advantage of the multi-bend achromat (MBA) magnet lattices, which will result in narrowly focused x-ray beams of much higher brightness. The APS-U installation has a short schedule of one-year. In order to plan and execute a task of such complexity, a collaboration between many individuals of very diverse backgrounds must exist. The Component Database (CDB) has been created to aid in documenting and managing all the parts that will go into the upgraded facility. After initial deployment and use, it became clear that the system must become more flexible, as the engineers started requesting new features such as tracking inventory assemblies, supporting relationships between components, and several usability requests. Recently, a more generic database schema has been implemented. This allows for the addition of more functionality without needing to refactor the database. The topics discussed in this paper include advantages and challenges of a more generic schema, new functionality, and plans for future work.

Slides TUBPA01 [0.770 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUBPA01

Export •

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

TUPHA111

A Major Performance Upgrade to the Transverse Feedback System at the Advance Photon Source

ion, feedback, FPGA, operation

674

N.P. DiMonte, C. Yao
ANL, Argonne, Illinois, USA

Funding: Work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
With the success and reliability of the transverse feedback system installed at the Advance Photon Source (APS), a major upgrade to expand the system is under way. The existing system is operating at a third of the storage ring bunch capacity, or 324 of the available 1296 bunches. This upgrade will allow the sampling of all 1296 bunches and make corrections for all selected bunches in a single storage ring turn. To facilitate this upgrade a new analog I/O board capable of 352 MHz operation was developed along with a revolution clock cleaning circuit. A 352MHz clock cleaning circuit was also required for the high-speed analog output circuit to maintain data integrity to the receiving DAC unit that is 61m away. This receiving DAC unit will have its transceiver data rate upgraded from 2.3Gbps to about 7Gbps transmitted over a fiber optic link. This paper discusses some of the challenges in reducing the clock jitter from both the system P0 bunch clock and the 352MHz clock along with the necessary FPGA hardware upgrades and algorithm changes, all of which is required for the success of this upgrade.

Poster TUPHA111 [2.976 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA111

Export •

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

WEAPL07

On-line Optimization of European XFEL with OCELOT

ion, FEL, operation, controls

1038

S.I. Tomin, G. Geloni
XFEL. EU, Hamburg, Germany
I.V. Agapov, W. Decking, M. Scholz, I. Zagorodnov
DESY, Hamburg, Germany

FEL tuning and optimization within the OCELOT framework has been implemented in 2015 and has been since used for SASE pulse energy optimization at FLASH and later at LCLS, as well as injection efficiency maximization in the Siberia-1 storage ring. For the European XFEL commissioning purposes the code was considerably improved and additional set of tools has been introduced. Here these tools and experi-ence of their use during the European XFEL commissioning and initial operation will be presented. Future devel-opment directions will be outlined.

Talk as video stream: https://youtu.be/b97wcbuve4A

Slides WEAPL07 [6.338 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-WEAPL07

Export •

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