IPAC2021 - List of Keywords (hardware)

Paper	Title	Other Keywords	Page
TUPAB322	Redesign and Upgrade of the LHC Access Control System	controls, site, interface, PLC	2249
	T. Hakulinen, S. Di Luca, G. Godineau, R. Nunes, G. Smith CERN, Meyrin, Switzerland
	The old LHC Access Control System (LACS) was based on a single access control solution, which integrated software and hardware into one monolithic application encompassing all the different subsystems (access control, video surveillance, interphones, biometry, equipment control, safety elements). Both the hardware and software were approaching end-of-life by the vendor before the CERN Long Shutdown 2 (LS2). The new design is based on a distributed approach, where the different subsystems are integrated in a flexible manner with well-defined interfaces, which will permit much easier single sub-system management, upgrades, and even full replacements if necessary. From the system point of view, the focus is on the advantages that this redesign brings to system operation, testing, and management. Procedurally the interest is in the overall management of a very complex in-place upgrade of a system, where the new implementation needed to coexist with the old during its constant simultaneous solicitation over the LS2.
	Poster TUPAB322 [6.906 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB322
About •	paper received ※ 15 May 2021 paper accepted ※ 28 May 2021 issue date ※ 28 August 2021
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WEPAB102	Half-Metal Spin Filter for Highly Polarized Emission from GaAs Photocathodes	electron, polarization, cathode, lattice	2833
	S. Poddar, C.-J. Jing, E.J. Montgomery Euclid Beamlabs, Bolingbrook, USA P. Lukashev University of Northern Iowa, Cedar Falls, Iowa, USA C. Palmstrøm UCSB, Santa Barbara, California, USA M.L. Stutzman, S. Zhang JLab, Newport News, Virginia, USA
	Funding: Work supported by Department of Energy grant number DE-SC0020564. GaAs-based photocathodes are one of the major sources of spin-polarized electrons and are crucial for the upcoming Electron-Ion collider experiments which includes study of proton spin and spin parity violation in the standard model. The theoretical polarization limit in unstrained GaAs photocathodes is 50 % but only 35 % is routinely achieved in experiments. Spin selective filtering allows to boost the spin polarization beyond the 50 % theoretical limit. In this work, first-principle electronic calculations using standard Density Functional Theory are performed to predict possible Heusler alloy half-metal candidates to be used as spin-filter. Simulations are also performed to investigate the half-metallicity as function of the magnetic spin direction. Several devices are experimentally fabricated using dedicated Molecular Beam Epitaxy growth system. We implemented Quantum Efficiency and Polarization testing of these half-metal/GaAs heterostructures using a dedicated Mott polarimeter system. Photoemission can also be seen on magnetically switching the spin-filter direction accompanied by a change in sign of the asymmetry which is a qualitative proof of the spin-filtering effect.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB102
About •	paper received ※ 20 May 2021 paper accepted ※ 28 July 2021 issue date ※ 27 August 2021
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WEPAB287	Upgrade of the ELBE Timing System	timing, operation, gun, GUI	3326
	M. Kuntzsch, M. Justus, A. Schwarz, K. Zenker HZDR, Dresden, Germany L. Krmpotic, U. Legat, U. Rojec Cosylab, Ljubljana, Slovenia Ž. Oven COSYLAB, Control System Laboratory, Ljubljana, Slovenia
	At the ELBE accelerator center a superconducting linac is operated to drive manifold secondary radiation sources like two infrared FELs, a positron source and a THz facility. The machine uses two injectors as electron sources that are accelerated in the main linac. The user experiments demand a large variety of bunch patterns from single shot to macro pulsed and cw beam at up to 26 MHz repetition rate. At ELBE a new timing system is being developed based on the MRF hardware platform and the MRF Timing System IOC. It uses two masters and a scalable number of connected receivers to generate the desired pulse patterns for operating the machine and to control user experiments. The contribution will show the architecture of the timing system, the control interfacing and performance measurements acquired on the test bench.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB287
About •	paper received ※ 21 May 2021 paper accepted ※ 01 July 2021 issue date ※ 13 August 2021
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WEPAB288	A New Timing System for PETRA IV	timing, controls, FEL, storage-ring	3329
	H. Lippek, A. Aghababyan, K. Brede, H.T. Duhme, M. Fenner, U. Hurdelbrink, H. Kay, H. Schlarb, T. Wilksen DESY, Hamburg, Germany
	At DESY an upgrade of the PETRA III synchrotron light source towards a fourth-generation, low emittance machine PETRA IV is currently being actively pursued. The realization of this new machine implies a new design of the timing and synchronization system since requirements on beam quality and controls will significantly change from the existing implementation at PETRA III. As of now the technical design phase of the PETRA IV project is in full swing. For the timing system the design process of the overall system as well as the evaluation of individual components has been started as of last year. Given the success of the at DESY developed MicroTCA.4-based timing system for the European XFEL accelerator it has been chosen to serve as a basis for the PETRA IV timing system developement as well. We present first design ideas of the major timing system hardware component, a MicroTCA.4-based AMC for distributing clocks, triggers and further bunch-synchronous information within the accelerator complex and to user experiments. First steps of an evaluation process for designing the AMC hardware are briefly illustrated.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB288
About •	paper received ※ 19 May 2021 paper accepted ※ 01 July 2021 issue date ※ 10 August 2021
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WEPAB309	Study and Design of the Appropriate High-Performance Computing System for Beamline Data Analysis Application at Iranian Light Source Facility (ILSF)	software, experiment, data-analysis, network	3399
	A. Khaleghi, M. Akbari ILSF, Tehran, Iran H. Haedar, K. Mahmoudi, M. Takhttavani IKIU, Qazvin, Iran S. Mahmoudi Sharif University of Technology (SUT), Tehran, Iran
	Data analysis is a very important step in doing experiments at light sources, where multiple application and software packages are used for this purpose. In this paper we have reviewed some software packages that are used for data analysis and design at Iranian Light Source Facility then according to their processing needs, after taking in mind different HPC scenarios a suitable architecture for deployment of the ILSF HPC is presented. The proposed architecture is a cluster of 64 computing nodes connected through Ethernet and InfiniBand network running a Linux operating system with support of MPI parallel environment.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB309
About •	paper received ※ 19 May 2021 paper accepted ※ 23 July 2021 issue date ※ 01 September 2021
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WEPAB310	Study and Design of a High-Performance Computing Infrastructure for Iranian Light Source Facility Based on the Accelerator Physicists and Engineers’ Applications Requirements	software, network, Ethernet, simulation	3402
	K. Mahmoudi, H. Haedar, A. Khaleghi IKIU, Qazvin, Iran M. Akbari, A. Khaleghi ILSF, Tehran, Iran S. Mahmoudi IUST, Narmac, Tehran, Iran
	Synchrotron design and operation are one of the complex tasks which requires a lot of precise computation. As an example, we could mention the simulations done for calculating the impedance budget of the machine which requires a notable amount of computational power. In this paper we are going to review different HPC scenarios suitable for this matter then we will present our design of a suitable HPC based on the accelerator physicists and engineers’ needs. Going through different HPC scenarios such as shared memory architectures, distributed memory architectures, cluster, grid and cloud computing we conclude implementation of a dedicated computing cluster can be desired for ILSF. Cluster computing provides the opportunity for easy and saleable scientific computation for ILSF also another advantage is that its resources can be used for running cloud or grid computing platforms as well.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB310
About •	paper received ※ 19 May 2021 paper accepted ※ 19 July 2021 issue date ※ 12 August 2021
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WEPAB321	ALS-U Instrumentation Overview	timing, instrumentation, electron, controls	3427
	J.M. Weber, J.C. Bell, M.J. Chin, S. De Santis, R.F. Gunion, S. Murthy, W.E. Norum, G.J. Portmann, C. Serrano LBNL, Berkeley, California, USA W.K. Lewis Osprey DCS LLC, Ocean City, USA
	Funding: Work supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 The Advanced Light Source Upgrade (ALS-U) to a diffraction-limited storage ring with a small vacuum chamber diameter requires excellent orbit stability and a fast response orbit interlock for machine protection. The on-axis swap-out injection scheme and dual RF frequencies demand fast monitoring of pulsed injection magnets and a novel approach to timing. Recent development efforts at ALS and advances in PLLs, FPGAs, and RFSoCs that provide higher performance and mixed-signal integration can be leveraged for instrumentation solutions to these accelerator challenges. An overview of preliminary ALS-U instrumentation system designs and status will be presented.
	Poster WEPAB321 [23.306 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB321
About •	paper received ※ 19 May 2021 paper accepted ※ 27 July 2021 issue date ※ 22 August 2021
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WEPAB323	High Performance DAQ Infrastructure to Enable Machine Learning for the Advanced Photon Source Upgrade	monitoring, controls, EPICS, data-acquisition	3434
	G. Shen, N.D. Arnold, T.G. Berenc, J. Carwardine, E. Chandler, T. Fors, T.J. Madden, D.R. Paskvan, C. Roehrig, S.E. Shoaf, S. Veseli ANL, Lemont, 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. It is well known that the efficiency of an advanced control algorithm like machine learning is as good as its data quality. Much recent progress in technology enables the massive data acquisition from a control system of modern particle accelerator, and the wide use of embedded controllers, like field-programmable gate arrays (FPGA), provides an opportunity to collect fast data from technical subsystems for monitoring, statistics, diagnostics or fault recording. To improve the data quality, at the APS Upgrade project, a general-purpose data acquisition (DAQ) system is under active development. The APS-U DAQ system collects high-quality fast data from underneath embedded controllers, especially the FPGAs, with the manner of time-correlation and synchronously sampling, which could be used for commissioning, performance monitoring, troubleshooting, and early fault detection, etc. This paper presents the design and latest progress of APS-U high-performance DAQ infrastructure, as well as its preparation to enable the use of machine learning technology for APS-U, and its use cases at APS.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB323
About •	paper received ※ 19 May 2021 paper accepted ※ 24 June 2021 issue date ※ 29 August 2021
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THPAB031	Dump Line Layout and Beam Dilution Pattern Optimization of the Future Circular Collider	kicker, quadrupole, target, extraction	3815
	B. Facskó, D. Barna Wigner Research Centre for Physics, Institute for Particle and Nuclear Physics, Budapest, Hungary A. Lechner, E. Renner CERN, Geneva, Switzerland
	To avoid any damage to the beam dump target in the Future Circular Collider, the beam will be swept over its surface using oscillating kickers in the x/y planes with a 90-degree phase difference, and an amplitude changing in time, creating a spiral pattern. The ideal pattern must have an increasing spiral pitch towards smaller radii to produce an even energy deposition density. We recommend the realization of the optimal pattern using two beating frequencies. This method enables a flat energy deposition density while only using simple independent damped oscillators. In this poster, we also present the study of the beamline optics and hardware that can realize the needed pattern. Two different possible hardware layouts were examined and optimized as well.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB031
About •	paper received ※ 19 May 2021 paper accepted ※ 28 July 2021 issue date ※ 18 August 2021
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THPAB190	Optimising and Extending a Single-Particle Tracking Library for High Parallel Performance	GPU, lattice, simulation, interface	4146
	M. Schwinzerl, H. Bartosik, R. De Maria, G. Iadarola, K. Paraschou CERN, Geneva, Switzerland A. Oeftiger GSI, Darmstadt, Germany M. Schwinzerl KFUG/IMSC, Graz, Austria
	SixTrackLib is a library for performing beam-dynamics simulations on highly parallel computing devices such as shared memory multi-core processors or graphical processing units (GPUs). Its single-particle approach fits very well with parallel implementations with reasonable baseline performance, making such a library an interesting building block for various use cases, including simulations covering collective effects. We describe optimizations to improve their performance on SixTrackLib’s main target platforms and the associated performance gains. Finally, we outline the implemented technical interfaces and extensions that allow SixTrackLib to be used in a wider range of applications and studies.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB190
About •	paper received ※ 18 May 2021 paper accepted ※ 14 July 2021 issue date ※ 16 August 2021
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THPAB257	Fast Orbit Corrector Power Supply in MTCA.4 Form Factor for Sirius Light Source	controls, power-supply, feedback, target	4307
	A.F. Giachero, G.B.M. Bruno, L.M. Russo, D.O. Tavares LNLS, Campinas, Brazil
	A new fast orbit feedback (FOFB) hardware architecture has been pursued at Sirius. The fast corrector magnets’ are fed by power supply modules which are placed in the same MicroTCA.4 crates where the BPM digitizers and FOFB controllers are located. Each channel is made of a 3-Watt linear amplifier whose output currents are digitally controlled by the same FPGA where the distributed orbit feedback controller is processed. The amplifier is specified to reach up to 10 kHz small-signal bandwidth on a 3.5 mH inductance magnet and ±1 A full scale, which translates to 30 urad deflection on Sirius’ 3 GeV beam. Such a high level of integration aims at minimizing the overall latency of the FOFB loop while leveraging the crate infrastructure, namely electronics enclosure, DC power, cooling, and hardware management support already provided by the MTCA.4 crates. The fast corrector power supply channels are placed on Rear Transition Modules (RTMs) which are attached to the front AMC FPGA module where the FOFB controller is implemented. This paper will describe the main design concepts and report on the experimental results of the first prototypes.
	Poster THPAB257 [48.881 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB257
About •	paper received ※ 22 May 2021 paper accepted ※ 27 July 2021 issue date ※ 20 August 2021
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THPAB264	FOFB System Upgrade to ZynqMP FPGA with Fast ORM Measurement	FPGA, closed-orbit, storage-ring, EPICS	4322
	Y.E. Tan, S. Chen, R.B. Hogan, A. Michalczyk AS - ANSTO, Clayton, Australia
	The FOFB processor has been ported from a Vertex 6 FPGA to a ZynqMP SoC (System on Chip) to provide additional resources to include the enhanced orbit diagnostics (EOD) system that has been designed to inject sinusoidal and pink noise through the feedback loop. The amplitude, duration, phase and frequency of sinusoidal, amplitude and duration of pink noise is user programmable.
	Poster THPAB264 [1.601 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB264
About •	paper received ※ 04 June 2021 paper accepted ※ 26 July 2021 issue date ※ 15 August 2021
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THPAB295	Application of CMM Technology in Accelerator Magnet Detection	software, quadrupole, detector, radiation	4381
	S. Li, F.S. Chen, C.D. Deng, W. Kang, Y.Q. Liu, X. Wu, Y.W. Wu IHEP, Beijing, People’s Republic of China
	Accelerator magnet is one of the most difficult equipment in accelerator hardware system. With the improvement of physical requirements, more and more high technical requirements are put forward for magnets. This paper mainly introduces the new application of three coordinate measurement technology in the detection of accelerator magnet, and introduces the working process of CMM in the detection of accelerator magnet polar profile.
	Poster THPAB295 [0.677 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB295
About •	paper received ※ 14 May 2021 paper accepted ※ 02 September 2021 issue date ※ 29 August 2021
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THPAB311	Using Linear Regression to Model the Parameters of the Flat Wires in TLS-EPU56	feedback, injection, undulator, electron	4399
	S.J. Huang, Y.H. Chang, T.Y. Chung NSRRC, Hsinchu, Taiwan Y.W. Chen Academia Sinica, Taipei, Taiwan
	Although a theoretical calculation might predict the set currents of the flat wires, which are used to compensate the deviation in the Betatron tune caused by the elliptically polarized undulator (EPU), those set currents must still be tuned in reality. To approach this reality, a strategy of Machine Learning was adopted, which included collecting real-condition data and using a linear-regression model to adjust the parameters of the flat wires. After training the model, the predictions in variables tune x, tune y and beam size x were compared with the required amount of correction of the EPU at various gaps and phases. To prove the feasibility of this method, a test was performed under the real conditions of accelerator Taiwan Light Source (TLS).
	Poster THPAB311 [1.226 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB311
About •	paper received ※ 13 May 2021 paper accepted ※ 28 June 2021 issue date ※ 30 August 2021
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Paper

Title

Other Keywords

Page

TUPAB322

Redesign and Upgrade of the LHC Access Control System

controls, site, interface, PLC

2249

T. Hakulinen, S. Di Luca, G. Godineau, R. Nunes, G. Smith
CERN, Meyrin, Switzerland

The old LHC Access Control System (LACS) was based on a single access control solution, which integrated software and hardware into one monolithic application encompassing all the different subsystems (access control, video surveillance, interphones, biometry, equipment control, safety elements). Both the hardware and software were approaching end-of-life by the vendor before the CERN Long Shutdown 2 (LS2). The new design is based on a distributed approach, where the different subsystems are integrated in a flexible manner with well-defined interfaces, which will permit much easier single sub-system management, upgrades, and even full replacements if necessary. From the system point of view, the focus is on the advantages that this redesign brings to system operation, testing, and management. Procedurally the interest is in the overall management of a very complex in-place upgrade of a system, where the new implementation needed to coexist with the old during its constant simultaneous solicitation over the LS2.

Poster TUPAB322 [6.906 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB322

About •

paper received ※ 15 May 2021 paper accepted ※ 28 May 2021 issue date ※ 28 August 2021

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WEPAB102

Half-Metal Spin Filter for Highly Polarized Emission from GaAs Photocathodes

electron, polarization, cathode, lattice

2833

S. Poddar, C.-J. Jing, E.J. Montgomery
Euclid Beamlabs, Bolingbrook, USA
P. Lukashev
University of Northern Iowa, Cedar Falls, Iowa, USA
C. Palmstrøm
UCSB, Santa Barbara, California, USA
M.L. Stutzman, S. Zhang
JLab, Newport News, Virginia, USA

Funding: Work supported by Department of Energy grant number DE-SC0020564.
GaAs-based photocathodes are one of the major sources of spin-polarized electrons and are crucial for the upcoming Electron-Ion collider experiments which includes study of proton spin and spin parity violation in the standard model. The theoretical polarization limit in unstrained GaAs photocathodes is 50 % but only 35 % is routinely achieved in experiments. Spin selective filtering allows to boost the spin polarization beyond the 50 % theoretical limit. In this work, first-principle electronic calculations using standard Density Functional Theory are performed to predict possible Heusler alloy half-metal candidates to be used as spin-filter. Simulations are also performed to investigate the half-metallicity as function of the magnetic spin direction. Several devices are experimentally fabricated using dedicated Molecular Beam Epitaxy growth system. We implemented Quantum Efficiency and Polarization testing of these half-metal/GaAs heterostructures using a dedicated Mott polarimeter system. Photoemission can also be seen on magnetically switching the spin-filter direction accompanied by a change in sign of the asymmetry which is a qualitative proof of the spin-filtering effect.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB102

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paper received ※ 20 May 2021 paper accepted ※ 28 July 2021 issue date ※ 27 August 2021

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WEPAB287

Upgrade of the ELBE Timing System

timing, operation, gun, GUI

3326

M. Kuntzsch, M. Justus, A. Schwarz, K. Zenker
HZDR, Dresden, Germany
L. Krmpotic, U. Legat, U. Rojec
Cosylab, Ljubljana, Slovenia
Ž. Oven
COSYLAB, Control System Laboratory, Ljubljana, Slovenia

At the ELBE accelerator center a superconducting linac is operated to drive manifold secondary radiation sources like two infrared FELs, a positron source and a THz facility. The machine uses two injectors as electron sources that are accelerated in the main linac. The user experiments demand a large variety of bunch patterns from single shot to macro pulsed and cw beam at up to 26 MHz repetition rate. At ELBE a new timing system is being developed based on the MRF hardware platform and the MRF Timing System IOC. It uses two masters and a scalable number of connected receivers to generate the desired pulse patterns for operating the machine and to control user experiments. The contribution will show the architecture of the timing system, the control interfacing and performance measurements acquired on the test bench.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB287

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paper received ※ 21 May 2021 paper accepted ※ 01 July 2021 issue date ※ 13 August 2021

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WEPAB288

A New Timing System for PETRA IV

timing, controls, FEL, storage-ring

3329

H. Lippek, A. Aghababyan, K. Brede, H.T. Duhme, M. Fenner, U. Hurdelbrink, H. Kay, H. Schlarb, T. Wilksen
DESY, Hamburg, Germany

At DESY an upgrade of the PETRA III synchrotron light source towards a fourth-generation, low emittance machine PETRA IV is currently being actively pursued. The realization of this new machine implies a new design of the timing and synchronization system since requirements on beam quality and controls will significantly change from the existing implementation at PETRA III. As of now the technical design phase of the PETRA IV project is in full swing. For the timing system the design process of the overall system as well as the evaluation of individual components has been started as of last year. Given the success of the at DESY developed MicroTCA.4-based timing system for the European XFEL accelerator it has been chosen to serve as a basis for the PETRA IV timing system developement as well. We present first design ideas of the major timing system hardware component, a MicroTCA.4-based AMC for distributing clocks, triggers and further bunch-synchronous information within the accelerator complex and to user experiments. First steps of an evaluation process for designing the AMC hardware are briefly illustrated.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB288

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paper received ※ 19 May 2021 paper accepted ※ 01 July 2021 issue date ※ 10 August 2021

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WEPAB309

Study and Design of the Appropriate High-Performance Computing System for Beamline Data Analysis Application at Iranian Light Source Facility (ILSF)

software, experiment, data-analysis, network

3399

A. Khaleghi, M. Akbari
ILSF, Tehran, Iran
H. Haedar, K. Mahmoudi, M. Takhttavani
IKIU, Qazvin, Iran
S. Mahmoudi
Sharif University of Technology (SUT), Tehran, Iran

Data analysis is a very important step in doing experiments at light sources, where multiple application and software packages are used for this purpose. In this paper we have reviewed some software packages that are used for data analysis and design at Iranian Light Source Facility then according to their processing needs, after taking in mind different HPC scenarios a suitable architecture for deployment of the ILSF HPC is presented. The proposed architecture is a cluster of 64 computing nodes connected through Ethernet and InfiniBand network running a Linux operating system with support of MPI parallel environment.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB309

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paper received ※ 19 May 2021 paper accepted ※ 23 July 2021 issue date ※ 01 September 2021

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WEPAB310

Study and Design of a High-Performance Computing Infrastructure for Iranian Light Source Facility Based on the Accelerator Physicists and Engineers’ Applications Requirements

software, network, Ethernet, simulation

3402

K. Mahmoudi, H. Haedar, A. Khaleghi
IKIU, Qazvin, Iran
M. Akbari, A. Khaleghi
ILSF, Tehran, Iran
S. Mahmoudi
IUST, Narmac, Tehran, Iran

Synchrotron design and operation are one of the complex tasks which requires a lot of precise computation. As an example, we could mention the simulations done for calculating the impedance budget of the machine which requires a notable amount of computational power. In this paper we are going to review different HPC scenarios suitable for this matter then we will present our design of a suitable HPC based on the accelerator physicists and engineers’ needs. Going through different HPC scenarios such as shared memory architectures, distributed memory architectures, cluster, grid and cloud computing we conclude implementation of a dedicated computing cluster can be desired for ILSF. Cluster computing provides the opportunity for easy and saleable scientific computation for ILSF also another advantage is that its resources can be used for running cloud or grid computing platforms as well.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB310

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paper received ※ 19 May 2021 paper accepted ※ 19 July 2021 issue date ※ 12 August 2021

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WEPAB321

ALS-U Instrumentation Overview

timing, instrumentation, electron, controls

3427

J.M. Weber, J.C. Bell, M.J. Chin, S. De Santis, R.F. Gunion, S. Murthy, W.E. Norum, G.J. Portmann, C. Serrano
LBNL, Berkeley, California, USA
W.K. Lewis
Osprey DCS LLC, Ocean City, USA

Funding: Work supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231
The Advanced Light Source Upgrade (ALS-U) to a diffraction-limited storage ring with a small vacuum chamber diameter requires excellent orbit stability and a fast response orbit interlock for machine protection. The on-axis swap-out injection scheme and dual RF frequencies demand fast monitoring of pulsed injection magnets and a novel approach to timing. Recent development efforts at ALS and advances in PLLs, FPGAs, and RFSoCs that provide higher performance and mixed-signal integration can be leveraged for instrumentation solutions to these accelerator challenges. An overview of preliminary ALS-U instrumentation system designs and status will be presented.

Poster WEPAB321 [23.306 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB321

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paper received ※ 19 May 2021 paper accepted ※ 27 July 2021 issue date ※ 22 August 2021

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WEPAB323

High Performance DAQ Infrastructure to Enable Machine Learning for the Advanced Photon Source Upgrade

monitoring, controls, EPICS, data-acquisition

3434

G. Shen, N.D. Arnold, T.G. Berenc, J. Carwardine, E. Chandler, T. Fors, T.J. Madden, D.R. Paskvan, C. Roehrig, S.E. Shoaf, S. Veseli
ANL, Lemont, 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.
It is well known that the efficiency of an advanced control algorithm like machine learning is as good as its data quality. Much recent progress in technology enables the massive data acquisition from a control system of modern particle accelerator, and the wide use of embedded controllers, like field-programmable gate arrays (FPGA), provides an opportunity to collect fast data from technical subsystems for monitoring, statistics, diagnostics or fault recording. To improve the data quality, at the APS Upgrade project, a general-purpose data acquisition (DAQ) system is under active development. The APS-U DAQ system collects high-quality fast data from underneath embedded controllers, especially the FPGAs, with the manner of time-correlation and synchronously sampling, which could be used for commissioning, performance monitoring, troubleshooting, and early fault detection, etc. This paper presents the design and latest progress of APS-U high-performance DAQ infrastructure, as well as its preparation to enable the use of machine learning technology for APS-U, and its use cases at APS.

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reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB323

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paper received ※ 19 May 2021 paper accepted ※ 24 June 2021 issue date ※ 29 August 2021

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THPAB031

Dump Line Layout and Beam Dilution Pattern Optimization of the Future Circular Collider

kicker, quadrupole, target, extraction

3815

B. Facskó, D. Barna
Wigner Research Centre for Physics, Institute for Particle and Nuclear Physics, Budapest, Hungary
A. Lechner, E. Renner
CERN, Geneva, Switzerland

To avoid any damage to the beam dump target in the Future Circular Collider, the beam will be swept over its surface using oscillating kickers in the x/y planes with a 90-degree phase difference, and an amplitude changing in time, creating a spiral pattern. The ideal pattern must have an increasing spiral pitch towards smaller radii to produce an even energy deposition density. We recommend the realization of the optimal pattern using two beating frequencies. This method enables a flat energy deposition density while only using simple independent damped oscillators. In this poster, we also present the study of the beamline optics and hardware that can realize the needed pattern. Two different possible hardware layouts were examined and optimized as well.

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reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB031

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paper received ※ 19 May 2021 paper accepted ※ 28 July 2021 issue date ※ 18 August 2021

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THPAB190

Optimising and Extending a Single-Particle Tracking Library for High Parallel Performance

GPU, lattice, simulation, interface

4146

M. Schwinzerl, H. Bartosik, R. De Maria, G. Iadarola, K. Paraschou
CERN, Geneva, Switzerland
A. Oeftiger
GSI, Darmstadt, Germany
M. Schwinzerl
KFUG/IMSC, Graz, Austria

SixTrackLib is a library for performing beam-dynamics simulations on highly parallel computing devices such as shared memory multi-core processors or graphical processing units (GPUs). Its single-particle approach fits very well with parallel implementations with reasonable baseline performance, making such a library an interesting building block for various use cases, including simulations covering collective effects. We describe optimizations to improve their performance on SixTrackLib’s main target platforms and the associated performance gains. Finally, we outline the implemented technical interfaces and extensions that allow SixTrackLib to be used in a wider range of applications and studies.

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reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB190

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paper received ※ 18 May 2021 paper accepted ※ 14 July 2021 issue date ※ 16 August 2021

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THPAB257

Fast Orbit Corrector Power Supply in MTCA.4 Form Factor for Sirius Light Source

controls, power-supply, feedback, target

4307

A.F. Giachero, G.B.M. Bruno, L.M. Russo, D.O. Tavares
LNLS, Campinas, Brazil

A new fast orbit feedback (FOFB) hardware architecture has been pursued at Sirius. The fast corrector magnets’ are fed by power supply modules which are placed in the same MicroTCA.4 crates where the BPM digitizers and FOFB controllers are located. Each channel is made of a 3-Watt linear amplifier whose output currents are digitally controlled by the same FPGA where the distributed orbit feedback controller is processed. The amplifier is specified to reach up to 10 kHz small-signal bandwidth on a 3.5 mH inductance magnet and ±1 A full scale, which translates to 30 urad deflection on Sirius’ 3 GeV beam. Such a high level of integration aims at minimizing the overall latency of the FOFB loop while leveraging the crate infrastructure, namely electronics enclosure, DC power, cooling, and hardware management support already provided by the MTCA.4 crates. The fast corrector power supply channels are placed on Rear Transition Modules (RTMs) which are attached to the front AMC FPGA module where the FOFB controller is implemented. This paper will describe the main design concepts and report on the experimental results of the first prototypes.

Poster THPAB257 [48.881 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB257

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paper received ※ 22 May 2021 paper accepted ※ 27 July 2021 issue date ※ 20 August 2021

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THPAB264

FOFB System Upgrade to ZynqMP FPGA with Fast ORM Measurement

FPGA, closed-orbit, storage-ring, EPICS

4322

Y.E. Tan, S. Chen, R.B. Hogan, A. Michalczyk
AS - ANSTO, Clayton, Australia

The FOFB processor has been ported from a Vertex 6 FPGA to a ZynqMP SoC (System on Chip) to provide additional resources to include the enhanced orbit diagnostics (EOD) system that has been designed to inject sinusoidal and pink noise through the feedback loop. The amplitude, duration, phase and frequency of sinusoidal, amplitude and duration of pink noise is user programmable.

Poster THPAB264 [1.601 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB264

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paper received ※ 04 June 2021 paper accepted ※ 26 July 2021 issue date ※ 15 August 2021

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THPAB295

Application of CMM Technology in Accelerator Magnet Detection

software, quadrupole, detector, radiation

4381

S. Li, F.S. Chen, C.D. Deng, W. Kang, Y.Q. Liu, X. Wu, Y.W. Wu
IHEP, Beijing, People’s Republic of China

Accelerator magnet is one of the most difficult equipment in accelerator hardware system. With the improvement of physical requirements, more and more high technical requirements are put forward for magnets. This paper mainly introduces the new application of three coordinate measurement technology in the detection of accelerator magnet, and introduces the working process of CMM in the detection of accelerator magnet polar profile.

Poster THPAB295 [0.677 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB295

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paper received ※ 14 May 2021 paper accepted ※ 02 September 2021 issue date ※ 29 August 2021

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THPAB311

Using Linear Regression to Model the Parameters of the Flat Wires in TLS-EPU56

feedback, injection, undulator, electron

4399

S.J. Huang, Y.H. Chang, T.Y. Chung
NSRRC, Hsinchu, Taiwan
Y.W. Chen
Academia Sinica, Taipei, Taiwan

Although a theoretical calculation might predict the set currents of the flat wires, which are used to compensate the deviation in the Betatron tune caused by the elliptically polarized undulator (EPU), those set currents must still be tuned in reality. To approach this reality, a strategy of Machine Learning was adopted, which included collecting real-condition data and using a linear-regression model to adjust the parameters of the flat wires. After training the model, the predictions in variables tune x, tune y and beam size x were compared with the required amount of correction of the EPU at various gaps and phases. To prove the feasibility of this method, a test was performed under the real conditions of accelerator Taiwan Light Source (TLS).

Poster THPAB311 [1.226 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB311

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paper received ※ 13 May 2021 paper accepted ※ 28 June 2021 issue date ※ 30 August 2021

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