ICALEPCS2019 - List of Keywords (linac)

Paper	Title	Other Keywords	Page
MOAPP02	The SPIRAL2 Control System Status Just Before the First Beam	cavity, controls, PLC, machine-protect	8
	C.H. Haquin, P. Anger, P.-E. Bernaudin, C. Berthe, F. Bucaille, P. Dolegieviez, C.H. Patard, D. Touchard, A.H. Trudel, Q. Tura GANIL, Caen, France
	The SPIRAL2 Facility at GANIL is based on the construction of a superconducting LINAC (up to 5 mA - 40 MeV deuteron beams and up to 1 mA - 14.5 MeV/u heavy ion beams) with two experimental areas called S3 and NFS [1, 2]. At the end of this year, we will reach an important milestone with the first beam accelerated by the superconducting LINAC. The control system of the new facility relies on EPICS and PLC technologies. This paper will focus on the latest validated systems: machine protection system, the LINAC cryogenic system and the radio frequency system of the superconducting cavities. The validation requested a huge effort from all the teams but allow the project to be ready for this important moment.
	Slides MOAPP02 [6.262 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOAPP02
About •	paper received ※ 23 September 2019 paper accepted ※ 08 October 2019 issue date ※ 30 August 2020
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MOPHA066	Electronics for LCLS-II Beam Containment System Shut-off	PLC, electron, interface, electronics	366
	R.A. Kadyrov, D.G. Brown, E.P. Chin, C.I. Clarke, M. Petree, E. Rodriguez, F. Tao SLAC, Menlo Park, California, USA
	LCLS-II is a new FEL which is under construction at SLAC National Accelerator Laboratory. Its superconducting electron linac is able to produce up to 1.2 MW of beam power. Beam Containment System (BCS) is employed to limit the beam power and prevent excessive radiation in case of electron beam loss or FEL breach. Fast and slow shut-off paths are designed for devices with different response requirements. The system is required to shut-off the beam within 200 µs for some of the fast sensors. Fast path is based on custom electronic designs, and slow path leverages industrial safety-rated PLC hardware. The system spans for 4 km of LCLS-II and combines inputs from about 150 sensors of different complexity. Architecture is based on multiple levels starting with summing sensor inputs locally and to converting them into permits for the shut-off devices. Each level is implemented redundantly. Automated test and manual tests at all levels are implemented in the system. System architecture, electronics design and cable plant challenges are presented below.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA066
About •	paper received ※ 27 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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MOPHA067	New Injection Information Archiver for SuperKEKB	injection, network, operation, EPICS	370
	H. Kaji KEK, Ibaraki, Japan
	We upgraded the Injection Archiver System of the SuperKEKB collider. It records the information related with the beam injection. The system is configured on the EPICS network. The database server employs Archiver Appliance as the database management system. In addition, the distributed shared memory is installed on the database server. Its memory area is synchronized with other nodes such as bunch current monitor via the optical connection. Therefore the database server can collect the data like bunch current at the RF-bucket which the beam pulse is injected. By using this dedicated optical network, we succeed the high-speed and stable data acquisition. The injection data can be recorded, pulse-by-pulse, in 50 Hz without any packet loss.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA067
About •	paper received ※ 03 October 2019 paper accepted ※ 23 October 2019 issue date ※ 30 August 2020
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MOPHA071	Integrated Multi-Purpose Tool for Data Processing and Analysis via EPICS PV Access	controls, LEBT, EPICS, monitoring	379
	J.H. Kim, H.S. Kim, Y.M. Kim, H.-J. Kwon, Y.G. Song Korea Atomic Energy Research Institute (KAERI), Gyeongbuk, Republic of Korea
	Funding: This work has been supported through KOMAC (Korea Multi-purpose Accelerator Complex) operation fund of KAERI by MSIT (Ministry of Science and ICT) At the KOMAC, we have been operating a proton linac, consists of an ion source, low energy beam transport, a radio frequency quadrupole and eleven drift tube linacs for 100 MeV. The beam that users require is transported to the five target rooms using linac control system based on EPICS framework. In order to offering stable beam condition, it is important to figure out characteristic of a 100 MeV proton linac. Then the beam diagnosis systems such as beam current monitoring system, beam phase monitoring system and beam position monitoring system are installed on linac. All the data from diagnosis systems are monitored using control system studio for user interface and are archived through archive appliance. Operators analyze data after experiment for linac characteristic or some events are happened. So data scanning and processing tools are required to manage and analysis the linac more efficiently. In this paper, we describe implementation for the integrated data processing and analysis tools based on data access.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA071
About •	paper received ※ 30 September 2019 paper accepted ※ 02 October 2020 issue date ※ 30 August 2020
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MOPHA138	Beam Gate Control System for the Proton Injector and Beamlines on KOMAC	timing, controls, operation, proton	551
	Y.G. Song, H.S. Kim, J.H. Kim, H.-J. Kwon Korea Atomic Energy Research Institute (KAERI), Gyeongbuk, Republic of Korea
	Funding: This work has been supported through KOMAC (Korea Multi-purpose Accelerator Complex) operation fund of KAERI by MSIT (Ministry of Science and ICT). The Korea Multi-purpose Accelerator Complex (KOMAC) 100 MeV proton linac operates with the timing system to change real-time timing parameters for low and high-flux proton beam utilization. The main requirements are to synchronize the operation of the facility including linac, target, and diagnostics, to provide a variable beam repetition rate up to 60 Hz, and to support post-mortem analysis when a beam trip occurs. The timing system, which consists of one event generator and eleven event receivers, is configured to control the beam gate and beam sequence to distribute the proton beam to the beam line. Corresponding to user’s demands, beam gate should be controlled, and the beam distribution must be precisely synchronized with the main reference signal. The timing system is configured with sequence logic for beam gate control, and the timing events can trigger the software to perform actions including beam on or off, post-mortem data acquisition, and beam distribution on the beam lines. The results of the timing control system for the beam gate and beam distribution are presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA138
About •	paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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MOPHA139	Implementation of the PLC based Machine Protection System for Magnets at ESS	PLC, EPICS, operation, machine-protect	554
	D. Sánchez-Valdepeñas, M. Carroll, A. Nordt, M. Zaera-Sanz ESS, Lund, Sweden
	The special properties of the neutrons allow to study the matter structure and dynamics of atoms and molecules. Neutron scattering is applied in a wide range of research fields such as chemistry of materials, biology, magnetism and pharmacy. The European Spallation Source ERIC (ESS) will be the most powerful neutron source in the world with the vision to help the researchers to develop new solutions for the challenges of our time. Inside the Integrated Control System Division (ICS), the Protection Systems group will provide a Beam Interlock System to protect the beam and to avoid the activation of equipment. One of these interlock systems is the Machine Protection System for Magnets (MPSMag), which collects the signals coming from each of the 150 quadrupoles distributed along the 600 meters long LINAC to prevent beam losses. The MPSMag first prototype has been implemented using industrial Programmable Logic Controllers (PLCs), the Profinet real-time fieldbus communications protocol, and Siemens TIA Portal software to fulfill the high availability requirements of the facility. The concept of operation, the state machine, and the electrical design will be presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA139
About •	paper received ※ 29 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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MOPHA142	FACET-II Radiation Safety Systems Development	radiation, controls, PLC, electron	562
	F. Tao, B.M. Bennett, N. Lipkowitz SLAC, Menlo Park, California, USA
	Facility for Advanced Accelerator Experimental Tests (FACET)-II is an upgrade of the FACET. It uses the middle third of SLAC’s 2-mile long linear accelerator to accelerate the electron beam to 10 GeV, with positron beam to be added in the Stage 2 of the project. Once the project completes in late 2019, it will be operated as a Department of Energy (DOE) user facilities for advanced accelerator science studies. In this paper, we will describe the Radiation Safety Systems (RSS) design and implementation for FACET-II project. RSS include Personnel Protection System (PPS) and Beam Containment System (BCS). Though both systems are safety critical, different technologies are used to implement safety functions. PPS uses Siemens PLC as the backbone for control but legacy CAMAC for data acquisition, while BCS develops customized electronics for faster response to protect safety devices from radiation induced damage.
	Poster MOPHA142 [1.284 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA142
About •	paper received ※ 01 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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MOPHA145	Evolution of the CERN LINAC 4 Intensity Interlock System Using a Generic, Real-Time Comparator in C++	software, injection, MMI, hardware	570
	A. Topaloudis, J.C. Allica Santamaria CERN, Geneva, Switzerland
	During the commissioning phase of LINAC 4, three watchdog interlock systems were used to protect the accelerator and its equipment. These systems cut the beam if losses, calculated by combining the intensity measurements at various locations, exceed some predefined thresholds. While the existing systems were designed to be simple and robust to ensure safety, the future connection of the linac to the Proton Synchrotron Booster (PSB) requires new instances of these systems with additional requirements. Such requirements include the remote communication of the watchdogs with the intensity measurement systems to decouple any physical dependency between the two systems, and the arithmetical/logical combination of the measured data based on the watchdog location. As the Controls Interlocks Beam User (CIBU) hardware interface to the Beam Interlock Controller (BIC) is simple, the software part of the system can be re-designed to be application agnostic giving a single decision after performing a configurable set of comparisons. This paper describes the upgrade of the software of the existing watchdog interlock system to a generic comparator, enabling its usage for other applications.
	Poster MOPHA145 [1.008 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA145
About •	paper received ※ 27 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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TUAPP02	Development of the MTCA.4 I/O Cards for SPring-8 Upgrade and New 3 GeV Light Source	LLRF, cavity, FPGA, timing	665
	T. Fukui, N. Hosoda RIKEN SPring-8 Center, Innovative Light Sources Division, Hyogo, Japan M. Ishii JASRI/SPring-8, Hyogo-ken, Japan E. Iwai, H. Maesaka, T. Ohshima RIKEN SPring-8 Center, Sayo-cho, Sayo-gun, Hyogo, Japan
	We will start a full energy injection from the SACLA to the SPring-8 from next year as a part of the SPring-8 upgrade. For this, we developed several I/O cards with the MTCA.4 form factor. One of the key issues is a timing synchronization between SACLA and SPring-8. We implemented required functions on the FPGA logic of a commercially available I/O card. We develop a module to distribute a trigger and clocks. We also developed cards used for the beam position monitor (BPM) and low-level RF system (LLRF). Those are included two types of cards. One is a 16-bit digitizer used for LLRF for the SPring-8 since 2018 march. We will use the card for the BPM with modified FPGA logic. Second is an implementation of functions with the pulsed RF signals processed on the FPGA logic of a commercially available card. These functions are used for the BPM of the beam transport line from the SACLA to SPring-8. The existing system is used 1 Hz beam repetition but we need more than 10 Hz to achieve an injection time less than 20 minutes to maximize user time. We will report the performance of the MTCA.4 cards, the upgrade plan of the SPring-8, and the construction of the 3 GeV Light Source.
	Slides TUAPP02 [7.123 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUAPP02
About •	paper received ※ 01 October 2019 paper accepted ※ 20 October 2019 issue date ※ 30 August 2020
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TUBPR04	The Fault Diagnosis of Event Timing System in SuperKEKB	timing, operation, hardware, positron	741
	D. Wang Sokendai, Ibaraki, Japan K. Furukawa, H. Kaji, M. Satoh, H. Sugimura KEK, Ibaraki, Japan Y. Iitsuka EJIT, Hitachi, Ibaraki, Japan T. Kudou, S. Kusano Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan
	Funding: Work supported China Scholarship Council The new MRF event timing system is one of the most important components to maintain the reliable and stable operation of the SuperKEKB project. This system is utilized to distribute high precision level timing signals and accompanying control instructions to synchronize different subsystems and machines. Event generator (EVG) generates signals of different beam modes every 50 Hz pulse which contains several event codes while Event receivers (EVR) receives them and output signals to dedicated devices all over the installation. To certain these events are consistent during the distribution, an event fault diagnosis system is essentially needed. An EVR based event timing diagnostic system is thus developed by modifying the driver support module to provide a log system of persistent event data as well as comparing the received event codes with the beam injector pattern, detecting the event timing interval fault and notifying the results by email every day. Then, we are able to locate the fault, analyze the data, fix bugs or replace hardware and resume accelerator operation quickly.
	Slides TUBPR04 [2.076 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUBPR04
About •	paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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TUCPR07	High-level Physics Controls Applications Development for FRIB	controls, GUI, EPICS, lattice	828
	T. Zhang, K. Fukushima, M. Ikegami, D.G. Maxwell, P.N. Ostroumov FRIB, East Lansing, Michigan, USA
	Funding: Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DESC0000661 For the accelerators driven by the distributed control system like EPICS, control engineers solve the problem to make the devices work, while accelerator physicists dedicate themselves to make the machine run as the physics predicted. To fill the gap between the physics high-level controls and the low-level device controls, we developed a software framework that can help the users like accelerator physicists and operators, to work well with the machine in an object-oriented way, based on which the implementations for the physics control algorithms could be very efficient, understandable and maintainable.* Meanwhile, the modularized UI widgets are developed to standardize the high-level GUI applications development, to greatly reuse the codebase and ease the development. The most important thing is all the development also apply to other EPICS based accelerators. In this contribution, the design and implementation for both interactive Python scripting controls and high-level GUIs development will be addressed. *Tong Zhang, "Physics high-level applications and toolkit for accelerator system", EPICS Collaboration Meeting, Jun. 2018, ANL, US
	Slides TUCPR07 [8.430 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUCPR07
About •	paper received ※ 30 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
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WECPR05	Pulsed Magnet Control System Using COTS PXIe Devices and LabVIEW	controls, power-supply, software, operation	946
	Y. Enomoto, K. Furukawa, T. Natsui, M. Satoh KEK, Ibaraki, Japan H.S. Saotome Kanto Information Service (KIS), Accelerator Group, Ibaraki, Japan
	About one hundred channels of pulsed magnet power supply control system were installed in 2017 in KEK electron positron LINAC to realize pulse-to-pulse control of output current every 20 ms. The control system of a group of eight channels totally consists of commercially available devices, namely a PC (Windows 8.1), a PXIe crate and several PXIe boards such as ADC, DAC communication and timing. The software is written with LabVIEW. EPICS channel access protocol is used to communicate with OPI over standard Ethernet network. Depending on the destination of the beam, there are ten beam modes. The software is able to keep parameters for each mode independently, which makes it possible for us to operate one LINAC as if it were ten virtual LINACs. Even Software feedback to compensate small drift of output current is available for each mode independently. During two years of operation, there were no significant problem. Although the Windows is not a real-time OS, dropping rate of the trigger coming every 20 ms is less than a ppm. Rebooting of the PC or software is necessary only a few times in a year.
	Slides WECPR05 [5.799 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WECPR05
About •	paper received ※ 29 September 2019 paper accepted ※ 20 October 2019 issue date ※ 30 August 2020
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WEMPR009	Development of Event Receiver on Zynq-7000 Evaluation Board	timing, controls, distributed, FPGA	1063
	H. Sugimura KEK, Ibaraki, Japan
	The timing system of SuperKEKB accelerator is used Event Timing System developed by Micro Research Finland. In this presentation, we tested the receiver on Zynq7000 evaluation board. The serialized event data are transferred from Event Generator to Event Receiver by using GTX transceiver. So, we selected Zynq7000(7z030) as receiver, because the FPGA has the GTX. And also, Zynq is mounted on arm processor, it is easily able to control received event data stream by using EPICS ICO. Finally we are aiming to combine event system and RF or BPM system in one FPGA board.
	Poster WEMPR009 [0.572 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEMPR009
About •	paper received ※ 17 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
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WEPHA012	A General Multiple-Input Multiple-Output Feedback Device in Tango for the MAX IV Accelerators	feedback, TANGO, controls, storage-ring	1084
	P.J. Bell, V.H. Hardion, M. Lindberg, V. Martos, M. Sjöström MAX IV Laboratory, Lund University, Lund, Sweden
	A general multiple-input multiple-output feedback device has been implemented in Tango for various applications in the MAX IV accelerators. The device has a configurable list of sensors and actuators, response matrix inversion, gain and frequency regulation, takes account of the validity of the sensor inputs and may respond to external interlocks. In the storage rings, it performs the slow orbit feedback (SOFB) using the 10 Hz data stream from the Libera Brilliance Plus Beam Position Measurement (BPM) electronics, reading 194 (34) BPMs in the large (small) ring as sensor inputs. The BPM readings are received as Tango events and a corrector-to-BPM response matrix calculation outputs the corrector magnet settings. In the linac, the device is used for the trajectory correction, again with sensor input data sent as Tango events, in this case from the Single Pass BPM electronics. The device is also used for tune feedback in the storage rings, making use of its own polling thread to read the sensors. In the future, a custom SOFB device may be spun off in order to integrate the hardware-based fast orbit feedback, though the general device is also seeing new applications at the beamlines.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA012
About •	paper received ※ 20 September 2019 paper accepted ※ 08 October 2019 issue date ※ 30 August 2020
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WEPHA013	Programmable Logic Controller Systems for SPIRAL2	controls, PLC, operation, cryomodule	1089
	C. Berthe, F. Bucaille, G. Delavallee, G. Duteil, C. Hocini, J.-F. Rozé, A.H. Trudel, Q. Tura GANIL, Caen, France P.G. Graehling IPHC, Strasbourg Cedex 2, France R. Touzery CEA-DRF-IRFU, France
	PLC provides a large part of the SPIRAL 2 project’s commands. The SPIRAL2 project is based on a multi-beam driver in order to allow both ISOL and low-energy in-flight techniques to produce Radioactive Ion Beams (RIB). A superconducting light/heavy-ion linac with an acceleration potential of about 40 MV capable of accelerating 5 mA deuterons up to 40 MeV and 1 mA heavy ions up to 14.5 MeV/u is used to bombard both thick and thin targets. The PLCs provide vacuum control, access control, part of the machine protection system, control of the cryogenic distribution system, cooling controls, control of RF amplifiers, they are associated with the safety control system. The standards used are presented as well as the general synoptic of the PLC control system. The details of the major systems are presented, the Cryo distribution, the machine protection system, a safety system.
	Poster WEPHA013 [4.786 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA013
About •	paper received ※ 30 September 2019 paper accepted ※ 19 October 2019 issue date ※ 30 August 2020
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WEPHA035	Firmware Layer Implementation of the nBLM and icBLM Systems for ESS Project	neutron, FPGA, interface, simulation	1157
	W. Cichalewski, G.W. Jabłoński, W. Jałmużna, R. Kiełbik TUL-DMCS, Łódź, Poland F.S. Alves, H. Carling, I. Dolenc Kittelmann, S. Farina, K.E. Rosengren, T.J. Shea ESS, Lund, Sweden
	Funding: Work supported by Polish Ministry of Science and Higher Education, decision number DIR/WK/2018/02 Both ionization chamber Beam Loss Monitor (icBLM) and neutron Beam Loss Monitor (nBLM) systems are fundamental components of European Spallation Source (ESS) accelerator safety systems. Main responsibility of this system is instantaneous and reliable detection of accelerated proton beam loss that exceeds predefined safety threshold. Nowadays DMCS (as an in-kind partner to ESS) is responsible for beam loss detection algorithm implementation, evaluation and deployment in firmware. As a hardware platform for mentioned systems MTCA.4 based form factor electronic components have been chosen (delivered by IOXOS). This contribution focuses on both cases (nBLM and icBLM) firmware realisation presentation. Proposed and developed firmware structure and functional blocks that fulfills specified by ESS requirements are described. Additionally, some aspects of the system FPGA circuit resource usage and achieved performance is being discussed.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA035
About •	paper received ※ 01 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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WEPHA044	Upgrade of the Bunch Length and Bunch Charge Control Systems for the New SLAC Free Electron Laser	detector, timing, electron, EPICS	1185
	M.P. Donadio, A.S. Fisher, L. Sapozhnikov SLAC, Menlo Park, California, USA
	In 2019 SLAC is building a new linear accelerator based on superconducting niobium cavities. The first one, now called the copper linac, could generate 120 electron bunches per second. The new one, called superconducting linac, will generate 1 million per second, bringing some challenges to many devices along with the accelerator. Most of them receive sensors and actuators in a VME-based Platform with its control running in software, with RTEMS as OS. This is feasible for 120 Hz, but not for 1 MHz. The new control hardware is ATCA-based Platform, that has carrier boards with FPGA connected to servers running Embedded real-time Linux OS, forming the High-Performance System (HPS). Instead of having all the new architecture installed at the accelerator and tested on the go, SLAC used the strategy of testing the systems in the copper linac, to have them ready to use in the superconducting linac in what was called the Mission Readiness Program. The Bunch Length System and the Bunch Charge System are examples of devices of this program. Both systems were tested in the copper linac at 120 Hz, with excellent results. The next step is to test them at the superconducting linac, at 1 MHz.
	Poster WEPHA044 [1.308 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA044
About •	paper received ※ 28 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
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WEPHA071	Timing System Integration with MTCA at ESS	timing, EPICS, network, hardware	1264
	J.J. Jamróz, J. Cereijo García, T. Korhonen, J.H. Lee ESS, Lund, Sweden
	European Spallation Source (ESS) organization has selected cutting-edge technologies to satisfy performance and scalability expectations: - Micro Telecommunications Computing Architecture (MTCA). - Micro Research Finland (MRF) based timing system with delay compensation. - Experimental Physics and Industrial Control System (EPICS). To achieve optimal data acquisition quality, the control system is built on top of the timing system which gives the same absolute time reference to all EPICS process variables (PVs). The MTCA system gives configurable cableless access to manage connections among different electronic mezzanine cards, therefore reducing installation workload.
	Poster WEPHA071 [1.322 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA071
About •	paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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WESH4002	A PyDM User Interface for an LCLS Simulator	interface, controls, klystron, electron	1525
	M.L. Gibbs, W.S. Colocho, A. Osman, J. Shtalenkova, H.H. Slepicka SLAC, Menlo Park, California, USA
	PyDM (Python Display Manager) is a framework for building control system user interfaces. A user interface for the LCLS (Linac Coherent Light Source) simulator has been built in PyDM. The simulator interface gives a realistic experience of operating many parts of the LCLS accelerator, and can be used for training new accelerator operators on routine tasks. This interface also provides a good demonstration of the experience of using PyDM in a real-world environment.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WESH4002
About •	paper received ※ 01 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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FRAPP03	Status of the CSNS Accelerator Control System	controls, EPICS, timing, PLC	1662
	Y.L. Zhang, C.P. Chu, W. Gao, F.Q. Guo, Y.C. He, D.P. Jin, M.T. Kang, G. Li, X. Wu, P. Zhu IHEP, Beijing, People’s Republic of China L. Wang IHEP CSNS, Guangdong Province, People’s Republic of China
	The China Spallation Neutron Source (CSNS) accelerator consists of an 80 MeV H⁻ linac, a 1.6 GeV Rapid Cycling Synchrotron (RCS) and two beam transport lines. The designed proton beam power is 100 kW in Phase-I. EPICS(Experimental Physics and Industrial Control System) is chosen as the software platform for the accelerator control system. The accelerator control system mainly consists of 21 sub-systems. VME64x based system with real-time embedded controllers is chosen for the timing system and fast protection system. PLCs and some embedded industrial computers are used for the device level controls. CSS (Control System Studio) and RDB based techniques are adopted for high level applications. The overall control system has been completed in 2018 and transitioned to routine operations in September of the same year. The design and the operation status of the overall accelerator control system are introduced in this paper.
	Slides FRAPP03 [9.395 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-FRAPP03
About •	paper received ※ 28 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
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Paper

Title

Other Keywords

Page

MOAPP02

The SPIRAL2 Control System Status Just Before the First Beam

cavity, controls, PLC, machine-protect

8

C.H. Haquin, P. Anger, P.-E. Bernaudin, C. Berthe, F. Bucaille, P. Dolegieviez, C.H. Patard, D. Touchard, A.H. Trudel, Q. Tura
GANIL, Caen, France

The SPIRAL2 Facility at GANIL is based on the construction of a superconducting LINAC (up to 5 mA - 40 MeV deuteron beams and up to 1 mA - 14.5 MeV/u heavy ion beams) with two experimental areas called S3 and NFS [1, 2]. At the end of this year, we will reach an important milestone with the first beam accelerated by the superconducting LINAC. The control system of the new facility relies on EPICS and PLC technologies. This paper will focus on the latest validated systems: machine protection system, the LINAC cryogenic system and the radio frequency system of the superconducting cavities. The validation requested a huge effort from all the teams but allow the project to be ready for this important moment.

Slides MOAPP02 [6.262 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOAPP02

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paper received ※ 23 September 2019 paper accepted ※ 08 October 2019 issue date ※ 30 August 2020

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MOPHA066

Electronics for LCLS-II Beam Containment System Shut-off

PLC, electron, interface, electronics

366

R.A. Kadyrov, D.G. Brown, E.P. Chin, C.I. Clarke, M. Petree, E. Rodriguez, F. Tao
SLAC, Menlo Park, California, USA

LCLS-II is a new FEL which is under construction at SLAC National Accelerator Laboratory. Its superconducting electron linac is able to produce up to 1.2 MW of beam power. Beam Containment System (BCS) is employed to limit the beam power and prevent excessive radiation in case of electron beam loss or FEL breach. Fast and slow shut-off paths are designed for devices with different response requirements. The system is required to shut-off the beam within 200 µs for some of the fast sensors. Fast path is based on custom electronic designs, and slow path leverages industrial safety-rated PLC hardware. The system spans for 4 km of LCLS-II and combines inputs from about 150 sensors of different complexity. Architecture is based on multiple levels starting with summing sensor inputs locally and to converting them into permits for the shut-off devices. Each level is implemented redundantly. Automated test and manual tests at all levels are implemented in the system. System architecture, electronics design and cable plant challenges are presented below.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA066

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paper received ※ 27 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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MOPHA067

New Injection Information Archiver for SuperKEKB

injection, network, operation, EPICS

370

H. Kaji
KEK, Ibaraki, Japan

We upgraded the Injection Archiver System of the SuperKEKB collider. It records the information related with the beam injection. The system is configured on the EPICS network. The database server employs Archiver Appliance as the database management system. In addition, the distributed shared memory is installed on the database server. Its memory area is synchronized with other nodes such as bunch current monitor via the optical connection. Therefore the database server can collect the data like bunch current at the RF-bucket which the beam pulse is injected. By using this dedicated optical network, we succeed the high-speed and stable data acquisition. The injection data can be recorded, pulse-by-pulse, in 50 Hz without any packet loss.

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA067

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paper received ※ 03 October 2019 paper accepted ※ 23 October 2019 issue date ※ 30 August 2020

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MOPHA071

Integrated Multi-Purpose Tool for Data Processing and Analysis via EPICS PV Access

controls, LEBT, EPICS, monitoring

379

J.H. Kim, H.S. Kim, Y.M. Kim, H.-J. Kwon, Y.G. Song
Korea Atomic Energy Research Institute (KAERI), Gyeongbuk, Republic of Korea

Funding: This work has been supported through KOMAC (Korea Multi-purpose Accelerator Complex) operation fund of KAERI by MSIT (Ministry of Science and ICT)
At the KOMAC, we have been operating a proton linac, consists of an ion source, low energy beam transport, a radio frequency quadrupole and eleven drift tube linacs for 100 MeV. The beam that users require is transported to the five target rooms using linac control system based on EPICS framework. In order to offering stable beam condition, it is important to figure out characteristic of a 100 MeV proton linac. Then the beam diagnosis systems such as beam current monitoring system, beam phase monitoring system and beam position monitoring system are installed on linac. All the data from diagnosis systems are monitored using control system studio for user interface and are archived through archive appliance. Operators analyze data after experiment for linac characteristic or some events are happened. So data scanning and processing tools are required to manage and analysis the linac more efficiently. In this paper, we describe implementation for the integrated data processing and analysis tools based on data access.

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA071

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paper received ※ 30 September 2019 paper accepted ※ 02 October 2020 issue date ※ 30 August 2020

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MOPHA138

Beam Gate Control System for the Proton Injector and Beamlines on KOMAC

timing, controls, operation, proton

551

Y.G. Song, H.S. Kim, J.H. Kim, H.-J. Kwon
Korea Atomic Energy Research Institute (KAERI), Gyeongbuk, Republic of Korea

Funding: This work has been supported through KOMAC (Korea Multi-purpose Accelerator Complex) operation fund of KAERI by MSIT (Ministry of Science and ICT).
The Korea Multi-purpose Accelerator Complex (KOMAC) 100 MeV proton linac operates with the timing system to change real-time timing parameters for low and high-flux proton beam utilization. The main requirements are to synchronize the operation of the facility including linac, target, and diagnostics, to provide a variable beam repetition rate up to 60 Hz, and to support post-mortem analysis when a beam trip occurs. The timing system, which consists of one event generator and eleven event receivers, is configured to control the beam gate and beam sequence to distribute the proton beam to the beam line. Corresponding to user’s demands, beam gate should be controlled, and the beam distribution must be precisely synchronized with the main reference signal. The timing system is configured with sequence logic for beam gate control, and the timing events can trigger the software to perform actions including beam on or off, post-mortem data acquisition, and beam distribution on the beam lines. The results of the timing control system for the beam gate and beam distribution are presented.

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA138

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paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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MOPHA139

Implementation of the PLC based Machine Protection System for Magnets at ESS

PLC, EPICS, operation, machine-protect

554

D. Sánchez-Valdepeñas, M. Carroll, A. Nordt, M. Zaera-Sanz
ESS, Lund, Sweden

The special properties of the neutrons allow to study the matter structure and dynamics of atoms and molecules. Neutron scattering is applied in a wide range of research fields such as chemistry of materials, biology, magnetism and pharmacy. The European Spallation Source ERIC (ESS) will be the most powerful neutron source in the world with the vision to help the researchers to develop new solutions for the challenges of our time. Inside the Integrated Control System Division (ICS), the Protection Systems group will provide a Beam Interlock System to protect the beam and to avoid the activation of equipment. One of these interlock systems is the Machine Protection System for Magnets (MPSMag), which collects the signals coming from each of the 150 quadrupoles distributed along the 600 meters long LINAC to prevent beam losses. The MPSMag first prototype has been implemented using industrial Programmable Logic Controllers (PLCs), the Profinet real-time fieldbus communications protocol, and Siemens TIA Portal software to fulfill the high availability requirements of the facility. The concept of operation, the state machine, and the electrical design will be presented.

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA139

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paper received ※ 29 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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MOPHA142

FACET-II Radiation Safety Systems Development

radiation, controls, PLC, electron

562

F. Tao, B.M. Bennett, N. Lipkowitz
SLAC, Menlo Park, California, USA

Facility for Advanced Accelerator Experimental Tests (FACET)-II is an upgrade of the FACET. It uses the middle third of SLAC’s 2-mile long linear accelerator to accelerate the electron beam to 10 GeV, with positron beam to be added in the Stage 2 of the project. Once the project completes in late 2019, it will be operated as a Department of Energy (DOE) user facilities for advanced accelerator science studies. In this paper, we will describe the Radiation Safety Systems (RSS) design and implementation for FACET-II project. RSS include Personnel Protection System (PPS) and Beam Containment System (BCS). Though both systems are safety critical, different technologies are used to implement safety functions. PPS uses Siemens PLC as the backbone for control but legacy CAMAC for data acquisition, while BCS develops customized electronics for faster response to protect safety devices from radiation induced damage.

Poster MOPHA142 [1.284 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA142

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paper received ※ 01 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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MOPHA145

Evolution of the CERN LINAC 4 Intensity Interlock System Using a Generic, Real-Time Comparator in C++

software, injection, MMI, hardware

570

A. Topaloudis, J.C. Allica Santamaria
CERN, Geneva, Switzerland

During the commissioning phase of LINAC 4, three watchdog interlock systems were used to protect the accelerator and its equipment. These systems cut the beam if losses, calculated by combining the intensity measurements at various locations, exceed some predefined thresholds. While the existing systems were designed to be simple and robust to ensure safety, the future connection of the linac to the Proton Synchrotron Booster (PSB) requires new instances of these systems with additional requirements. Such requirements include the remote communication of the watchdogs with the intensity measurement systems to decouple any physical dependency between the two systems, and the arithmetical/logical combination of the measured data based on the watchdog location. As the Controls Interlocks Beam User (CIBU) hardware interface to the Beam Interlock Controller (BIC) is simple, the software part of the system can be re-designed to be application agnostic giving a single decision after performing a configurable set of comparisons. This paper describes the upgrade of the software of the existing watchdog interlock system to a generic comparator, enabling its usage for other applications.

Poster MOPHA145 [1.008 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA145

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paper received ※ 27 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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TUAPP02

Development of the MTCA.4 I/O Cards for SPring-8 Upgrade and New 3 GeV Light Source

LLRF, cavity, FPGA, timing

665

T. Fukui, N. Hosoda
RIKEN SPring-8 Center, Innovative Light Sources Division, Hyogo, Japan
M. Ishii
JASRI/SPring-8, Hyogo-ken, Japan
E. Iwai, H. Maesaka, T. Ohshima
RIKEN SPring-8 Center, Sayo-cho, Sayo-gun, Hyogo, Japan

We will start a full energy injection from the SACLA to the SPring-8 from next year as a part of the SPring-8 upgrade. For this, we developed several I/O cards with the MTCA.4 form factor. One of the key issues is a timing synchronization between SACLA and SPring-8. We implemented required functions on the FPGA logic of a commercially available I/O card. We develop a module to distribute a trigger and clocks. We also developed cards used for the beam position monitor (BPM) and low-level RF system (LLRF). Those are included two types of cards. One is a 16-bit digitizer used for LLRF for the SPring-8 since 2018 march. We will use the card for the BPM with modified FPGA logic. Second is an implementation of functions with the pulsed RF signals processed on the FPGA logic of a commercially available card. These functions are used for the BPM of the beam transport line from the SACLA to SPring-8. The existing system is used 1 Hz beam repetition but we need more than 10 Hz to achieve an injection time less than 20 minutes to maximize user time. We will report the performance of the MTCA.4 cards, the upgrade plan of the SPring-8, and the construction of the 3 GeV Light Source.

Slides TUAPP02 [7.123 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUAPP02

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paper received ※ 01 October 2019 paper accepted ※ 20 October 2019 issue date ※ 30 August 2020

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TUBPR04

The Fault Diagnosis of Event Timing System in SuperKEKB

timing, operation, hardware, positron

741

D. Wang
Sokendai, Ibaraki, Japan
K. Furukawa, H. Kaji, M. Satoh, H. Sugimura
KEK, Ibaraki, Japan
Y. Iitsuka
EJIT, Hitachi, Ibaraki, Japan
T. Kudou, S. Kusano
Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan

Funding: Work supported China Scholarship Council
The new MRF event timing system is one of the most important components to maintain the reliable and stable operation of the SuperKEKB project. This system is utilized to distribute high precision level timing signals and accompanying control instructions to synchronize different subsystems and machines. Event generator (EVG) generates signals of different beam modes every 50 Hz pulse which contains several event codes while Event receivers (EVR) receives them and output signals to dedicated devices all over the installation. To certain these events are consistent during the distribution, an event fault diagnosis system is essentially needed. An EVR based event timing diagnostic system is thus developed by modifying the driver support module to provide a log system of persistent event data as well as comparing the received event codes with the beam injector pattern, detecting the event timing interval fault and notifying the results by email every day. Then, we are able to locate the fault, analyze the data, fix bugs or replace hardware and resume accelerator operation quickly.

Slides TUBPR04 [2.076 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUBPR04

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paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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TUCPR07

High-level Physics Controls Applications Development for FRIB

controls, GUI, EPICS, lattice

828

T. Zhang, K. Fukushima, M. Ikegami, D.G. Maxwell, P.N. Ostroumov
FRIB, East Lansing, Michigan, USA

Funding: Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DESC0000661
For the accelerators driven by the distributed control system like EPICS, control engineers solve the problem to make the devices work, while accelerator physicists dedicate themselves to make the machine run as the physics predicted. To fill the gap between the physics high-level controls and the low-level device controls, we developed a software framework that can help the users like accelerator physicists and operators, to work well with the machine in an object-oriented way, based on which the implementations for the physics control algorithms could be very efficient, understandable and maintainable.* Meanwhile, the modularized UI widgets are developed to standardize the high-level GUI applications development, to greatly reuse the codebase and ease the development. The most important thing is all the development also apply to other EPICS based accelerators. In this contribution, the design and implementation for both interactive Python scripting controls and high-level GUIs development will be addressed.
*Tong Zhang, "Physics high-level applications and toolkit for accelerator system", EPICS Collaboration Meeting, Jun. 2018, ANL, US

Slides TUCPR07 [8.430 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUCPR07

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paper received ※ 30 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

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WECPR05

Pulsed Magnet Control System Using COTS PXIe Devices and LabVIEW

controls, power-supply, software, operation

946

Y. Enomoto, K. Furukawa, T. Natsui, M. Satoh
KEK, Ibaraki, Japan
H.S. Saotome
Kanto Information Service (KIS), Accelerator Group, Ibaraki, Japan

About one hundred channels of pulsed magnet power supply control system were installed in 2017 in KEK electron positron LINAC to realize pulse-to-pulse control of output current every 20 ms. The control system of a group of eight channels totally consists of commercially available devices, namely a PC (Windows 8.1), a PXIe crate and several PXIe boards such as ADC, DAC communication and timing. The software is written with LabVIEW. EPICS channel access protocol is used to communicate with OPI over standard Ethernet network. Depending on the destination of the beam, there are ten beam modes. The software is able to keep parameters for each mode independently, which makes it possible for us to operate one LINAC as if it were ten virtual LINACs. Even Software feedback to compensate small drift of output current is available for each mode independently. During two years of operation, there were no significant problem. Although the Windows is not a real-time OS, dropping rate of the trigger coming every 20 ms is less than a ppm. Rebooting of the PC or software is necessary only a few times in a year.

Slides WECPR05 [5.799 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WECPR05

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paper received ※ 29 September 2019 paper accepted ※ 20 October 2019 issue date ※ 30 August 2020

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WEMPR009

Development of Event Receiver on Zynq-7000 Evaluation Board

timing, controls, distributed, FPGA

1063

H. Sugimura
KEK, Ibaraki, Japan

The timing system of SuperKEKB accelerator is used Event Timing System developed by Micro Research Finland. In this presentation, we tested the receiver on Zynq7000 evaluation board. The serialized event data are transferred from Event Generator to Event Receiver by using GTX transceiver. So, we selected Zynq7000(7z030) as receiver, because the FPGA has the GTX. And also, Zynq is mounted on arm processor, it is easily able to control received event data stream by using EPICS ICO. Finally we are aiming to combine event system and RF or BPM system in one FPGA board.

Poster WEMPR009 [0.572 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEMPR009

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paper received ※ 17 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

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WEPHA012

A General Multiple-Input Multiple-Output Feedback Device in Tango for the MAX IV Accelerators

feedback, TANGO, controls, storage-ring

1084

P.J. Bell, V.H. Hardion, M. Lindberg, V. Martos, M. Sjöström
MAX IV Laboratory, Lund University, Lund, Sweden

A general multiple-input multiple-output feedback device has been implemented in Tango for various applications in the MAX IV accelerators. The device has a configurable list of sensors and actuators, response matrix inversion, gain and frequency regulation, takes account of the validity of the sensor inputs and may respond to external interlocks. In the storage rings, it performs the slow orbit feedback (SOFB) using the 10 Hz data stream from the Libera Brilliance Plus Beam Position Measurement (BPM) electronics, reading 194 (34) BPMs in the large (small) ring as sensor inputs. The BPM readings are received as Tango events and a corrector-to-BPM response matrix calculation outputs the corrector magnet settings. In the linac, the device is used for the trajectory correction, again with sensor input data sent as Tango events, in this case from the Single Pass BPM electronics. The device is also used for tune feedback in the storage rings, making use of its own polling thread to read the sensors. In the future, a custom SOFB device may be spun off in order to integrate the hardware-based fast orbit feedback, though the general device is also seeing new applications at the beamlines.

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA012

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paper received ※ 20 September 2019 paper accepted ※ 08 October 2019 issue date ※ 30 August 2020

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WEPHA013

Programmable Logic Controller Systems for SPIRAL2

controls, PLC, operation, cryomodule

1089

C. Berthe, F. Bucaille, G. Delavallee, G. Duteil, C. Hocini, J.-F. Rozé, A.H. Trudel, Q. Tura
GANIL, Caen, France
P.G. Graehling
IPHC, Strasbourg Cedex 2, France
R. Touzery
CEA-DRF-IRFU, France

PLC provides a large part of the SPIRAL 2 project’s commands. The SPIRAL2 project is based on a multi-beam driver in order to allow both ISOL and low-energy in-flight techniques to produce Radioactive Ion Beams (RIB). A superconducting light/heavy-ion linac with an acceleration potential of about 40 MV capable of accelerating 5 mA deuterons up to 40 MeV and 1 mA heavy ions up to 14.5 MeV/u is used to bombard both thick and thin targets. The PLCs provide vacuum control, access control, part of the machine protection system, control of the cryogenic distribution system, cooling controls, control of RF amplifiers, they are associated with the safety control system. The standards used are presented as well as the general synoptic of the PLC control system. The details of the major systems are presented, the Cryo distribution, the machine protection system, a safety system.

Poster WEPHA013 [4.786 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA013

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paper received ※ 30 September 2019 paper accepted ※ 19 October 2019 issue date ※ 30 August 2020

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WEPHA035

Firmware Layer Implementation of the nBLM and icBLM Systems for ESS Project

neutron, FPGA, interface, simulation

1157

W. Cichalewski, G.W. Jabłoński, W. Jałmużna, R. Kiełbik
TUL-DMCS, Łódź, Poland
F.S. Alves, H. Carling, I. Dolenc Kittelmann, S. Farina, K.E. Rosengren, T.J. Shea
ESS, Lund, Sweden

Funding: Work supported by Polish Ministry of Science and Higher Education, decision number DIR/WK/2018/02
Both ionization chamber Beam Loss Monitor (icBLM) and neutron Beam Loss Monitor (nBLM) systems are fundamental components of European Spallation Source (ESS) accelerator safety systems. Main responsibility of this system is instantaneous and reliable detection of accelerated proton beam loss that exceeds predefined safety threshold. Nowadays DMCS (as an in-kind partner to ESS) is responsible for beam loss detection algorithm implementation, evaluation and deployment in firmware. As a hardware platform for mentioned systems MTCA.4 based form factor electronic components have been chosen (delivered by IOXOS). This contribution focuses on both cases (nBLM and icBLM) firmware realisation presentation. Proposed and developed firmware structure and functional blocks that fulfills specified by ESS requirements are described. Additionally, some aspects of the system FPGA circuit resource usage and achieved performance is being discussed.

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA035

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paper received ※ 01 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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WEPHA044

Upgrade of the Bunch Length and Bunch Charge Control Systems for the New SLAC Free Electron Laser

detector, timing, electron, EPICS

1185

M.P. Donadio, A.S. Fisher, L. Sapozhnikov
SLAC, Menlo Park, California, USA

In 2019 SLAC is building a new linear accelerator based on superconducting niobium cavities. The first one, now called the copper linac, could generate 120 electron bunches per second. The new one, called superconducting linac, will generate 1 million per second, bringing some challenges to many devices along with the accelerator. Most of them receive sensors and actuators in a VME-based Platform with its control running in software, with RTEMS as OS. This is feasible for 120 Hz, but not for 1 MHz. The new control hardware is ATCA-based Platform, that has carrier boards with FPGA connected to servers running Embedded real-time Linux OS, forming the High-Performance System (HPS). Instead of having all the new architecture installed at the accelerator and tested on the go, SLAC used the strategy of testing the systems in the copper linac, to have them ready to use in the superconducting linac in what was called the Mission Readiness Program. The Bunch Length System and the Bunch Charge System are examples of devices of this program. Both systems were tested in the copper linac at 120 Hz, with excellent results. The next step is to test them at the superconducting linac, at 1 MHz.

Poster WEPHA044 [1.308 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA044

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paper received ※ 28 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

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WEPHA071

Timing System Integration with MTCA at ESS

timing, EPICS, network, hardware

1264

J.J. Jamróz, J. Cereijo García, T. Korhonen, J.H. Lee
ESS, Lund, Sweden

European Spallation Source (ESS) organization has selected cutting-edge technologies to satisfy performance and scalability expectations: - Micro Telecommunications Computing Architecture (MTCA). - Micro Research Finland (MRF) based timing system with delay compensation. - Experimental Physics and Industrial Control System (EPICS). To achieve optimal data acquisition quality, the control system is built on top of the timing system which gives the same absolute time reference to all EPICS process variables (PVs). The MTCA system gives configurable cableless access to manage connections among different electronic mezzanine cards, therefore reducing installation workload.

Poster WEPHA071 [1.322 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA071

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paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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WESH4002

A PyDM User Interface for an LCLS Simulator

interface, controls, klystron, electron

1525

M.L. Gibbs, W.S. Colocho, A. Osman, J. Shtalenkova, H.H. Slepicka
SLAC, Menlo Park, California, USA

PyDM (Python Display Manager) is a framework for building control system user interfaces. A user interface for the LCLS (Linac Coherent Light Source) simulator has been built in PyDM. The simulator interface gives a realistic experience of operating many parts of the LCLS accelerator, and can be used for training new accelerator operators on routine tasks. This interface also provides a good demonstration of the experience of using PyDM in a real-world environment.

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WESH4002

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paper received ※ 01 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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FRAPP03

Status of the CSNS Accelerator Control System

controls, EPICS, timing, PLC

1662

Y.L. Zhang, C.P. Chu, W. Gao, F.Q. Guo, Y.C. He, D.P. Jin, M.T. Kang, G. Li, X. Wu, P. Zhu
IHEP, Beijing, People’s Republic of China
L. Wang
IHEP CSNS, Guangdong Province, People’s Republic of China

The China Spallation Neutron Source (CSNS) accelerator consists of an 80 MeV H⁻ linac, a 1.6 GeV Rapid Cycling Synchrotron (RCS) and two beam transport lines. The designed proton beam power is 100 kW in Phase-I. EPICS(Experimental Physics and Industrial Control System) is chosen as the software platform for the accelerator control system. The accelerator control system mainly consists of 21 sub-systems. VME64x based system with real-time embedded controllers is chosen for the timing system and fast protection system. PLCs and some embedded industrial computers are used for the device level controls. CSS (Control System Studio) and RDB based techniques are adopted for high level applications. The overall control system has been completed in 2018 and transitioned to routine operations in September of the same year. The design and the operation status of the overall accelerator control system are introduced in this paper.

Slides FRAPP03 [9.395 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-FRAPP03

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paper received ※ 28 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

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