IPAC2016 - List of Keywords (distributed)

Paper	Title	Other Keywords	Page
MOOCB03	Distributed Matching Scheme and a Deterministic Flexible Matching Algorithm for Arbitrary Systems	controls, optics, quadrupole, embedded	65
	Y.-C. Chao SLAC, Menlo Park, California, USA Y.-C. Chao TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
	Paradigm complementary to conventional matching is explored, with matching distributed across the entire line. This can have varying degrees of advantage depending on acuteness of issues in a conventional scheme: - Limited flexibility and space constraint for matching section - Neglect of beam property away from matching section - Excessive envelope/magnet strength caused by matching (sub-optimal tradeoff) - Local envelope blowup inside matching section - Low tolerance to errors and lack of recourse to matching failure - Slow computation process - Unpredictable solution - Limited option/insight/control on implementing solution. A scheme was envisioned to address these, backed by recently developed matching algorithm tailored to this demand. It can be applied to any beamline configuration, including coupled 4D or intervening elements, providing deterministic, rigorous solutions allowing insight and control pre-implementation. It also shows promise of global optimum. Combined with the distributed scheme this algorithm promises additional advantages of speed, determinism and flexibility. Preliminary results, computational demands and possibilities for extension will be discussed.
	Slides MOOCB03 [10.412 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOOCB03
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MOPMW037	FEL Simulation Using Distributed Computing	simulation, FEL, electron, GPU	483
	J. Einstein, S. Biedron, H. Freund, S.V. Milton, P.J.M. van der Slot CSU, Fort Collins, Colorado, USA G. Bernabeu Altayo Fermi National Accelerator Laboratory, Batavia, Illinois, USA S. Biedron University of Ljubljana, Faculty of Electrical Engineering, Ljubljana, Slovenia J. Einstein Fermilab, Batavia, Illinois, USA P.J.M. van der Slot Twente University, Laser Physics and Non-Linear Optics Group, Enschede, The Netherlands
	While simulation tools are available and have been used regularly for simulating light sources, the increasing availability and lower cost of GPU-based processing opens up new opportunities. This poster highlights a method of how accelerating and parallelizing code processing through the use of COTS software interfaces.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMW037
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MOPMY030	SOSDAQ - a Data Acquisition and Slow Control System for the Swiss Light Source 500 MHz 65 Kw Solid State Power Amplifier	controls, network, monitoring, interface	560
	M.A. Gaspar, T. Garvey PSI, Villigen PSI, Switzerland
	The Paul Scherrer Institut has developed a compact 500 MHz - 65 kW solid state RF power amplifier intended for applications in booster and storage rings of modern synchrotron light sources. The solid state power amplifier is presently under evaluation in the booster ring of the Swiss Light Source (SLS). In order to achieve this high RF output power levels using the present state of the art solid state technology, a large number of power amplifier modules, each one including its own power amplifier module and a local monitoring and control, are combined, configuring a complete distributed system. In order to monitor and control this large distributed system, we developed a specific data acquisition, monitoring and control system, called SOSDAQ. This system offers flexibility for efficiency optimization, easy addition and replacement of components, easy configuration for different types of power and efficiency requirements, among other features. We will discuss about the control system architecture, the software and the hardware implementation, and the results obtained.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMY030
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MOPMY034	The Distributed Bunch Amplifier	network, coupling, electron, focusing	573
	M.A. Franzi, A. Jensen, S.G. Tantawi, F. Toufexis, A.R. Vrielink SLAC, Menlo Park, California, USA
	The Distributed Bunch Amplifier (DBA) is a high efficiency RF source that utilizes a phase locked deflecting cavity and output circuit to produce a synchronous beam-wave interaction. The DBA improves on the design of previous embodiments of this technology, such as the Gyrocon, by implementing a modern decoupled output circuit design and conical PPM beam focusing array in order to scale to higher frequencies and efficiency than previously demonstrated. Presented is a proof-of-concept S-band, 2.856 GHz, device operating with a 60 kV, 8 Amp, electron beam. Each stage of the three-cavity decoupled output circuit is optimized based on complex amplitude and shunt impedance to achieve an electronic efficiency of greater than 90%. Initial numerical analysis of this design indicates that an overall operating efficiency of greater than 70% is feasible. Detailed simulated results of the S-band model and designs to scale this technology to higher power and frequency will be discussed. Budker, G. I., et al. "The Gyrocon: An Efficient Relativistic High Power VHF Generator." Part. Accel. 10 (1979): 41-59.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMY034
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TUPOW027	Model Independent Analysis of Beam Jitter on VELA	laser, cathode, timing, gun	1806
	J.K. Jones, K.D. Dumbell, A.J. Moss, E.W. Snedden STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
	The Versatile Electron Linear Accelerator (VELA) is a facility designed to provide high quality electron beams for accelerator systems development, as well as industrial and scientific applications. A key performance indicator for many applications is the inherent beam jitter on the machine (temporal, momentum and positional). Analysis of this beam jitter indicates that there are several independent mechanisms driving the beam motion. We use model independent analysis to correlate various dominant modes of beam jitter and compare them to simulations. We also compare the dominant modes before and after intervention work on the DLLRF timing system, and determine the relevant changes in beam motion.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPOW027
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TUPOY047	Development of a Non-destructive Inspection System for Industrial and Societal Infrastructures with 950 keV/3.95 MeV Portable X-band Linac-based X-ray	linac, experiment, site, radiation	2011
	R. Yano The University of Tokyo, Tokyo, Japan J. Kusano Accuthera Inc., Kawasaki, Kanagawa, Japan M. Uesaka The University of Tokyo, Nuclear Professional School, Ibaraki-ken, Japan
	Advanced maintenance for aging industrial and societal infrastructures such as chemical plant and bridge are strongly needed recently. For the purpose, we are developing, applying and upgrading the 950 keV/3.95 MeV X-band linac X-ray sources for the on-site inspection. Less than 1 MeV accelerators are available for on-site inspection and less than 3.95 MeV accelerators are allowable for only bridge on-site inspection. These systems can visualize in seconds inner states of infrastructures, such as crack of concrete, iron-reinforced rod/wire and other imperfections. By using the 950 keV system, we conducted the first inspection of the real bridge and evaluated degradation of pre-stressed concrete wires. We also demonstrated first on-site use of the 3.95 MeV system in Japan in 2015. We are also performing structural analysis to evaluate the degradation of strength. For more precise evaluation, we are going to carry out a partial angle CT to reconstruct a two-dimensional inner structure. We are going to present the results and strategy of degradation evaluation of the industrial and societal infrastructures by the 950 keV / 3.95 MeV X-ray sources.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPOY047
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THEA01	Learn to Read Korean: An Introduction to the Hangul Alphabet	factory, ion, insertion, site	3207
	Z. Handel University of Washington, Seattle, Washington, USA
	In the mid 15th century the Korean scholar-king Sejong invented Hangul, the native Korean alphabet. This was the beginning of a long process by which Hangul has gradually supplanted Chinese characters as Korea's primary script, a process which is still ongoing today. This presentation will introduce the historical and cultural background behind the invention of Hangul and describe the systematic linguistic principles on which it is based. The 1446 text that introduced Hangul proclaimed that it was so simple that "a wise man can master it in a morning, and even a stupid person can learn it in ten days." We will put this claim to the test by attempting to learn to read Korean during the 30-minute presentation.
	Slides THEA01 [14.724 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THEA01
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Paper

Title

Other Keywords

Page

MOOCB03

Distributed Matching Scheme and a Deterministic Flexible Matching Algorithm for Arbitrary Systems

controls, optics, quadrupole, embedded

65

Y.-C. Chao
SLAC, Menlo Park, California, USA
Y.-C. Chao
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada

Paradigm complementary to conventional matching is explored, with matching distributed across the entire line. This can have varying degrees of advantage depending on acuteness of issues in a conventional scheme: - Limited flexibility and space constraint for matching section - Neglect of beam property away from matching section - Excessive envelope/magnet strength caused by matching (sub-optimal tradeoff) - Local envelope blowup inside matching section - Low tolerance to errors and lack of recourse to matching failure - Slow computation process - Unpredictable solution - Limited option/insight/control on implementing solution. A scheme was envisioned to address these, backed by recently developed matching algorithm tailored to this demand. It can be applied to any beamline configuration, including coupled 4D or intervening elements, providing deterministic, rigorous solutions allowing insight and control pre-implementation. It also shows promise of global optimum. Combined with the distributed scheme this algorithm promises additional advantages of speed, determinism and flexibility. Preliminary results, computational demands and possibilities for extension will be discussed.

Slides MOOCB03 [10.412 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOOCB03

Export •

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MOPMW037

FEL Simulation Using Distributed Computing

simulation, FEL, electron, GPU

483

J. Einstein, S. Biedron, H. Freund, S.V. Milton, P.J.M. van der Slot
CSU, Fort Collins, Colorado, USA
G. Bernabeu Altayo
Fermi National Accelerator Laboratory, Batavia, Illinois, USA
S. Biedron
University of Ljubljana, Faculty of Electrical Engineering, Ljubljana, Slovenia
J. Einstein
Fermilab, Batavia, Illinois, USA
P.J.M. van der Slot
Twente University, Laser Physics and Non-Linear Optics Group, Enschede, The Netherlands

While simulation tools are available and have been used regularly for simulating light sources, the increasing availability and lower cost of GPU-based processing opens up new opportunities. This poster highlights a method of how accelerating and parallelizing code processing through the use of COTS software interfaces.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMW037

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MOPMY030

SOSDAQ - a Data Acquisition and Slow Control System for the Swiss Light Source 500 MHz 65 Kw Solid State Power Amplifier

controls, network, monitoring, interface

560

M.A. Gaspar, T. Garvey
PSI, Villigen PSI, Switzerland

The Paul Scherrer Institut has developed a compact 500 MHz - 65 kW solid state RF power amplifier intended for applications in booster and storage rings of modern synchrotron light sources. The solid state power amplifier is presently under evaluation in the booster ring of the Swiss Light Source (SLS). In order to achieve this high RF output power levels using the present state of the art solid state technology, a large number of power amplifier modules, each one including its own power amplifier module and a local monitoring and control, are combined, configuring a complete distributed system. In order to monitor and control this large distributed system, we developed a specific data acquisition, monitoring and control system, called SOSDAQ. This system offers flexibility for efficiency optimization, easy addition and replacement of components, easy configuration for different types of power and efficiency requirements, among other features. We will discuss about the control system architecture, the software and the hardware implementation, and the results obtained.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMY030

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MOPMY034

The Distributed Bunch Amplifier

network, coupling, electron, focusing

573

M.A. Franzi, A. Jensen, S.G. Tantawi, F. Toufexis, A.R. Vrielink
SLAC, Menlo Park, California, USA

The Distributed Bunch Amplifier (DBA) is a high efficiency RF source that utilizes a phase locked deflecting cavity and output circuit to produce a synchronous beam-wave interaction. The DBA improves on the design of previous embodiments of this technology, such as the Gyrocon*, by implementing a modern decoupled output circuit design and conical PPM beam focusing array in order to scale to higher frequencies and efficiency than previously demonstrated. Presented is a proof-of-concept S-band, 2.856 GHz, device operating with a 60 kV, 8 Amp, electron beam. Each stage of the three-cavity decoupled output circuit is optimized based on complex amplitude and shunt impedance to achieve an electronic efficiency of greater than 90%. Initial numerical analysis of this design indicates that an overall operating efficiency of greater than 70% is feasible. Detailed simulated results of the S-band model and designs to scale this technology to higher power and frequency will be discussed.
* Budker, G. I., et al. "The Gyrocon: An Efficient Relativistic High Power VHF Generator." Part. Accel. 10 (1979): 41-59.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMY034

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TUPOW027

Model Independent Analysis of Beam Jitter on VELA

laser, cathode, timing, gun

1806

J.K. Jones, K.D. Dumbell, A.J. Moss, E.W. Snedden
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom

The Versatile Electron Linear Accelerator (VELA) is a facility designed to provide high quality electron beams for accelerator systems development, as well as industrial and scientific applications. A key performance indicator for many applications is the inherent beam jitter on the machine (temporal, momentum and positional). Analysis of this beam jitter indicates that there are several independent mechanisms driving the beam motion. We use model independent analysis to correlate various dominant modes of beam jitter and compare them to simulations. We also compare the dominant modes before and after intervention work on the DLLRF timing system, and determine the relevant changes in beam motion.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPOW027

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

TUPOY047

Development of a Non-destructive Inspection System for Industrial and Societal Infrastructures with 950 keV/3.95 MeV Portable X-band Linac-based X-ray

linac, experiment, site, radiation

2011

R. Yano
The University of Tokyo, Tokyo, Japan
J. Kusano
Accuthera Inc., Kawasaki, Kanagawa, Japan
M. Uesaka
The University of Tokyo, Nuclear Professional School, Ibaraki-ken, Japan

Advanced maintenance for aging industrial and societal infrastructures such as chemical plant and bridge are strongly needed recently. For the purpose, we are developing, applying and upgrading the 950 keV/3.95 MeV X-band linac X-ray sources for the on-site inspection. Less than 1 MeV accelerators are available for on-site inspection and less than 3.95 MeV accelerators are allowable for only bridge on-site inspection. These systems can visualize in seconds inner states of infrastructures, such as crack of concrete, iron-reinforced rod/wire and other imperfections. By using the 950 keV system, we conducted the first inspection of the real bridge and evaluated degradation of pre-stressed concrete wires. We also demonstrated first on-site use of the 3.95 MeV system in Japan in 2015. We are also performing structural analysis to evaluate the degradation of strength. For more precise evaluation, we are going to carry out a partial angle CT to reconstruct a two-dimensional inner structure. We are going to present the results and strategy of degradation evaluation of the industrial and societal infrastructures by the 950 keV / 3.95 MeV X-ray sources.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPOY047

Export •

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

THEA01

Learn to Read Korean: An Introduction to the Hangul Alphabet

factory, ion, insertion, site

3207

Z. Handel
University of Washington, Seattle, Washington, USA

In the mid 15th century the Korean scholar-king Sejong invented Hangul, the native Korean alphabet. This was the beginning of a long process by which Hangul has gradually supplanted Chinese characters as Korea's primary script, a process which is still ongoing today. This presentation will introduce the historical and cultural background behind the invention of Hangul and describe the systematic linguistic principles on which it is based. The 1446 text that introduced Hangul proclaimed that it was so simple that "a wise man can master it in a morning, and even a stupid person can learn it in ten days." We will put this claim to the test by attempting to learn to read Korean during the 30-minute presentation.

Slides THEA01 [14.724 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THEA01

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