ICALEPCS2013 - List of Keywords (linac)

Paper	Title	Other Keywords	Page
MOCOAAB04	The Integrated Control System at ESS	controls, software, hardware, timing	12
	G. Trahern ESS, Lund, Sweden M. Reščič Cosylab, Ljubljana, Slovenia
	The European Spallation Source (ESS) is a high current proton LINAC to be built in Lund, Sweden. The LINAC delivers 5 MW of power to the target at 2500 MeV, with a nominal current of 50 mA. The project entered Construction phase on January 1st 2013. In order to design, develop and deliver a reliable, well-performing and standardized control system for the ESS facility, the Integrated Control System (ICS) project has been established. The ICS project also entered Construction phase on January 1st. ICS consists of four distinct Core components (Physics, Software Services, Hardware and Protection) that make up the essence of the control system. Integration Support activities support the stakeholders and users, and the Control System Infrastructure provides the required underlying infrastructure for operating the control system and the facility. The current state of the control system project and key decisions are presented as well as immediate challenges and proposed solutions.
	Slides MOCOAAB04 [11.760 MB]

MOPPC027	The Control System of CERN Accelerators Vacuum [LS1 Activities and New Developments]	controls, vacuum, PLC, software	123
	P. Gomes, F. Antoniotti, F. Bellorini, S. Blanchard, J-P. Boivin, J. Gama, G. Girardot, G. Pigny, B. Rio, H. Vestergard CERN, Geneva, Switzerland L. Kopylov, S. Merker, M.S. Mikheev IHEP, Moscow Region, Russia
	After 3 years of operation, the LHC entered its first Long Shutdown period (LS1), in February 2013. Major consolidation and maintenance works will be performed across the whole CERN’s accelerator chain, in order to prepare the LHC to restart at higher energy, in 2015. The rest of the accelerator complex shall resume in mid-2014. We report on the recent and on-going vacuum-controls projects. Some of them are associated with the consolidations of the vacuum systems of LHC and of its injectors; others concern the complete renovation of the controls of some machines; and there are also some completely new installations. Due to the wide age-span of the existing vacuum installations, there is a mix of design philosophies and of control-equipment generations. The renovation and the novel projects offer an opportunity to improve the Quality Assurance of vacuum controls by: identifying, documenting, naming and labelling all pieces of equipment; minimising the number of equipment versions with similar functionality; homogenising the control architectures, while converging to a single software framework.
	Poster MOPPC027 [67.309 MB]

MOPPC109	Status of the MAX IV Laboratory Control System	controls, storage-ring, interface, TANGO	366
	J. Lidón-Simon, V.H. Hardion, J.J. Jamroz, M. Lindberg, A.G. Persson, D.P. Spruce MAX-lab, Lund, Sweden
	The MAX IV Laboratory is a new synchrotron light source being built in Lund, south Sweden. The whole accelerator complex consists of a 3GeV 300m long full energy linac, two Storage Rings of 1.5GeV and 3GeV and a Short Pulse Facility for pump and probe experiments with bunches around 100fs long. First x-rays for the users are expected to be delivered in 2015 for the SPF and 2016 for the Storage Rings. This paper describes the progress in the design of the control system for the accelerator and the different solutions adopted for data acquisition, synchronisation, networking, safety and other aspects related to the control system
	Poster MOPPC109 [0.522 MB]

MOPPC111	Overview of LINAC4 Beam Instrumentation Software	software, emittance, controls, electronics	374
	L.K. Jensen, M. Andersen, A. Guerrero, B. Kolad, M. Ludwig, U. Raich, F. Roncarolo CERN, Geneva, Switzerland
	This paper presents an overview of results from the recent LINAC4 commissioning with H⁻ beam at CERN. It will cover beam instrumentation systems acquiring beam position, intensity, size and emittance starting from the project proposal to commissioning results.

MOPPC118	Development of EPICS Accelerator Control System for the IAC 44 MeV Linac	controls, EPICS, power-supply, database	385
	A. Andrews, B.L. Berls, C.F. Eckman, K. Folkman, M. Khandaker, Y. Kim, C. O'Neill, J. Ralph IAC, Pocatello, IDAHO, USA P. Buaphad, Y. Kim ISU, Pocatello, Idaho, USA
	The Idaho Accelerator Center (IAC) of Idaho State University (ISU) has been operating nine low energy accelerators. Since the beginning of the fall semester of 2012, the ISU Advanced Accelerator and Ultrafast Beam Lab (AAUL) group has been working to develop a new EPICS system to control 47 magnet power supplies for an IAC 44 MeV L-band linear accelerator. Its original control system was fully analog, which had several limitations to get good reproducibility and stability during the accelerator operation. This paper describes our group’s team effort and accomplishment in developing a new EPICS system to control 15 Lambda EMS and 32 TDK-Lambda ZUP power supplies for the IAC L-band linear accelerator. In addition, we also describe several other useful tools such as the save and restore function.
	Poster MOPPC118 [1.175 MB]

MOPPC120	Commissioning Status of NSLS-II Vacuum Control System	vacuum, controls, PLC, EPICS	389
	H. Xu, H.-C. Hseuh, S. Leng, D. Zigrosser BNL, Upton, Long Island, New York, USA
	The National Synchrotron Light Source II (NSLS-II) is a state-of-the-art 3 GeV third generation light source currently under integrated testing and commissioning at Brookhaven National Laboratory. The vacuum systems are monitored by vacuum gauges and ion pump current. The gate valves are controlled by programmable logic controllers (PLC) using voting scheme. EPICS application codes provide the high level monitoring and control through the input-output controllers. This paper will discuss the commissioning status of the various aspects of vacuum control system.
	Poster MOPPC120 [0.648 MB]

TUPPC017	Development of J-PARC Time-Series Data Archiver using Distributed Database System	database, distributed, EPICS, operation	584
	N. Kikuzawa, Y. Kato, A. Yoshii JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan H. Ikeda JAEA, Ibaraki-ken, Japan
	J-PARC(Japan Proton Accelerator Research Complex) is consists of much equipment. In Linac and 3GeV synchrotron, the data of over the 64,000 EPICS records for these apparatus control is being collected. The data has been being stored by a RDB system using PostgreSQL now, but it is not enough in availability, performance, and extendibility. Therefore, the new system architecture is required, which is rich in the pliability and can respond to the data increasing continuously for years to come. In order to cope with this problem, we considered adoption of the distributed database archtecture and constructed the demonstration system using Hadoop/HBase. We present results of these demonstration.

TUPPC040	Saclay GBAR Command Control	PLC, software, controls, positron	650
	P. Lotrus CEA, Gif-sur-Yvette, France G.A. Durand CEA/DSM/IRFU, France
	The GBAR experiment will be installed in 2016 at CERN’s Antiproton Decelerator, ELENA extension, and will measure the free fall acceleration of neutral antihydrogen atoms. Before construction of GBAR, the CEA/Irfu institute has built a beam line to guide positrons produced by a Linac (linear particle accelerator) through either a materials science line or a Penning trap. The experiment command control is mainly based on Programmable Logical Controllers (PLC). A CEA/Irfu-developed Muscade SCADA (Supervisory Control and Data Acquisition) is installed on a Windows 7 embedded shoebox PC. It manages local and remote display, and is responsible for archiving and alarms. Muscade was used because it is rapidly and easily configurable. The project required Muscade to communicate with three different types of PLCs: Schneider, National Instruments (NI) and Siemens. Communication is based on Modbus/TCP and on an in-house protocol optimized for the Siemens PLC. To share information between fast and slow controls, a LabVIEW PC dedicated to the trap fast control communicates with a PLC dedicated to security via Profinet fieldbus.
	Poster TUPPC040 [1.791 MB]

TUPPC130	The Design of NSLS-II High Level Physics Applications	controls, GUI, booster, closed-orbit	890
	L. Yang, J. Choi, Y. Hidaka, Y. Li, G. Shen, G.M. Wang BNL, Upton, Long Island, New York, USA
	The NSLS-II high level physics applications are an effort from both controls and accelerator physics group. They are developed with the client-server approach, where the services are mainly provided by controls group in terms of web service or libraries.

TUCOCA01	XFEL Machine Protection System (MPS) Based on uTCA	kicker, operation, FPGA, undulator	906
	S. Karstensen, M.E. Castro Carballo, J.M. Jäger, M. Staack DESY, Hamburg, Germany
	The European X-Ray Free Electron Laser (XFEL) linear accelerator will provide an electron beam with energies of up to 17.5 GeV and will use it to generate extremely brilliant pulses of spatially coherent xrays. With a designated average beam power of up to 600 kW and beam spot sizes down to few micrometers, the machine will hold a serious damage potential. To ensure safe operation of the accelerator it is necessary to detect dangerous situations by closely monitoring beam losses and the status of critical components. This is the task of the uTCA* based machine protection system (MPS). Many design features of the system have been influenced by experience from existing facilities, particularly the Free Electron Laser in Hamburg (FLASH), which is a kind of 1:10 prototype for the XFEL. A high flexibility of the MPS is essential to guarantee a minimum downtime of the accelerator. The MPS is embedded in the DOOCS** control system. * uTCA: Micro Telecommunications Computing Architecture ** DOOCS: Distributed Object Oriented Control System
	Slides TUCOCA01 [2.255 MB]

THPPC009	Design and Status of the SuperKEKB Accelerator Control Network System	network, controls, EPICS, Ethernet	1107
	M. Iwasaki, K. Furukawa, H. Kaji, K. Mikawa, T.T. Nakamura, T. Obina, M. Satoh KEK, Ibaraki, Japan T. Aoyama, M. Fujita, S. Kusano, T. Nakamura, N. Tanaka, K. Yoshii Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan
	SuperKEKB is the upgrade of the KEKB asymmetric energy electron-positron collider, for the next generation B-factory experiment in Japan. It is designed to achieve a luminosity of 8x10³⁵/cm²/s, 40 times higher than the world highest luminosity record at KEKB. For SuperKEKB, we upgrade the accelerator control network system, which connects all devices in the accelerator. To construct the higher performance network system, we install the network switches based on the 10 gigabit Ethernet (10GbE) for the wider bandwidth data transfer. Additional optical fibers, for the reliable and redundant network and for the robust accelerator control timing system, are also installed. For the KEKB beamline construction and accelerator components maintenance, we install the new wireless network system based on the Leaky Coaxial (LCX) cable antennas into the 3 km circumference beamline tunnel. We reconfigure the network design to enhance the reliability and security of the network. In this paper, the design and current status of the SuperKEKB accelerator control network system will be presented.
	Poster THPPC009 [1.143 MB]

THPPC032	Embedded EPICS Controller for KEK Linac Screen Monitor System	controls, PLC, EPICS, Linux	1150
	M. Satoh, K. Furukawa, K. Mikawa, T. Suwada KEK, Ibaraki, Japan T. Kudou, S. Kusano Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan
	The screen monitor (SC) of the KEK linac is a beam diagnostics device to measure transverse beam profiles with a fluorescent screen. The screen material is made of 99.5% Al2O3 and 0.5% CrO3, with which a sufficient amount of fluorescent light can be obtained when electron and positron beams impinge on the screen. the fluorescent light with a camera embedded with a charge-coupled device (CCD), the transverse spatial profiles of the beam can be easily measured. Compact SCs were previously developed in 1995 for the KEKB project. About 110 compact SCs were installed into the beam line at that time. VME-based computer control system was also developed in order to perform fast and stable control of the SC system. However, the previous system becomes obsolete and hard to maintain. Recently, a new screen monitor control system for the KEK electron/positron injector linac has been developed and fully installed. The new system is an embedded EPICS IOC based on the Linux/PLC. In this paper, we present the new screen monitor control system in detail.

THPPC033	Upgrade of BPM DAQ System for SuperKEKB Injector Linac	emittance, electron, positron, damping	1153
	M. Satoh, K. Furukawa, F. Miyahara, T. Suwada KEK, Ibaraki, Japan T. Kudou, S. Kusano Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan
	The non-destructive beam position monitor (BPM) is indispensable diagnostic tool for the stable beam operation. In the KEK Linac, approximately nineteen BPMs with the strip-line type electrodes are used for the beam orbit measurement and feedback. In addition, some of them are also used for the beam energy feedback loops. The current data acquisition (DAQ) system consists of the fast digital oscilloscopes. A signal from each electrode is analyzed with a predetermined response function up to 50 Hz. In the present DAQ system, the measurement precision of beam position is limited to around 0.5 mm because of ADC resolution. Towards SuperKEKB project, we have a plan to upgrade the BPM DAQ system since the Linac should provide the smaller emittance beam in comparison with previous KEKB Linac. We will report the system description of the new DAQ system and the results of performance test in detail.

THPPC043	Implement an Interface for Control System to Interact with Oracle Database at SSC-LINAC	database, EPICS, interface, controls	1171
	S. An, K. Gu, X.J. Liu, J.Q. Wu, W. Zhang IMP, Lanzhou, People's Republic of China
	SSC-LINAC control system is based on EPICS architecture. The control system includes ion sources, vacuum, digital power supplies, etc. In these subsystems, some of those need to interactive with Oracle database, such as power supplies control subsystem, who need to get some parameters while power supplies is running and also need to store some data with Oracle. So we design and implementation an interface for EPICS IOC to interactive with Oracle database. The interface is a soft IOC which is also bases on EPICS architecture, so others IOC and OPI can use the soft IOC interactive with Oracle via Channel Access protocol.

THPPC045	The SSC-Linac Control System	controls, software, hardware, operation	1173
	W. Zhang, S. An, S.Z. Gou, K. Gu, X.J. Liu, M. Yue IMP, Lanzhou, People's Republic of China
	This article gives a brief description of the SSC-Linac control system for Heavy Ion Research Facility of Lanzhou(HIRFL). It describes in detail mainly of the overall system architecture, hardware and software. The overall system architecture is the distributed control system. We have adopted the the EPICS system as the system integration tools to develop the control system of the SSC-Linac. We use the NI PXIe chassis and PXIe bus master as a front-end control system hardware. Device controllers for each subsystem were composed of the commercial products or components designed by subsystems. The operating system in OPI and IOC of the SSC-Linac control system will use Linux.

THPPC103	Timing System at MAX IV	timing, gun, injection, storage-ring	1300
	J.J. Jamroz, V.H. Hardion, J. Lidón-Simon, L. Malmgren, A.M. Milán, A.M. Mitrovic, R. Nilsson, M. Sjöström, D.P. Spruce MAX-lab, Lund, Sweden
	The MAX IV Laboratory is the successor of the MAX-lab national laboratory in Sweden. The facility is being constructed at Brunnshög in the North Eastern part of Lund and will contain one long linac 3GeV (full energy injector), two storage rings (SR 1.5GeV and SR 3GeV) and a short pulse facility (SPF). This paper describes the design status of the timing system in 2013.
	Poster THPPC103 [7.134 MB]

THPPC138	A System for Automatic Locking of Resonators of Linac at IUAC	controls, interface, operation, feedback	1376
	R.N. Dutt, G.K. Chaudhari, S. Ghosh, D. Kanjilal, J. Karmakar, A. Pandey, P. Patra, A. Rai, A. Roy, B.K. Sahu IUAC, New Delhi, India S. Sahoo VECC, Kolkata, India
	The superconducting LINAC booster of IUAC consists of five cryostats housing a total of 27 Nb quarter wave resonators (QWRs). The QWRs are phase locked against the master oscillator at a frequency of 97 MHz. Cavity frequency tuning is done by a Helium gas based slow tuner. Presently, the frequency tuning and cavity phase locking is done from the control room consoles. To automate the LINAC operation, an automatic phase locking system has been implemented. The slow tuner gas pressure is automatically controlled in response to the frequency error of the cavity. The fast tuner is automatically triggered into phase lock when the frequency is within the lock window. This system has band implemented sucessfully on a few cavities. The system is now being installed for the remaining cavities of the LINAC booster. [1]S.Ghosh et al Phys. Rev. ST Accel. Beams 12, 040101 (2009).
	Poster THPPC138 [4.654 MB]

THCOCA04	Upgrade of Event Timing System at SuperKEKB	timing, injection, positron, operation	1453
	H. Kaji, K. Furukawa, M. Iwasaki, E. Kikutani, T. Kobayashi, F. Miyahara, T.T. Nakamura, M. Suetake, M. Tobiyama KEK, Ibaraki, Japan T. Kudo, S. Kusano Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan T. Okazaki EJIT, Hitachi, Ibaraki, Japan
	The timing system of the KEKB accelerator will be upgraded for the SuperKEKB project. One of difficulties at SuperKEKB is the positron injection. It takes more than 40ms since positron pulse must be stored at newly constructed damping ring for at least 40ms. Timings of whole accelerators are precisely synchronized for such a long period. We must manage highly frequent injections even with this situation. Typically beam pulse is delivered to one of rings at every 20ms. Besides, the new system must have a capability of realtime selection of injection RF-bucket - we call it "Bucket Selection" at KEKB - for equalizing bunch current at main rings. Bucket Selection also will be upgraded to synchronize buckets of damping ring and those of main rings. This includes the expansion of maximum delay time up to 2ms and the pulse-by-pulse shift of RF phase at 2nd half of injection Linac. We plan to upgrade the Event Timing System from "2-layer type", which simply connect one generator and one receiver, to "cascade type" for satisfying the new injection requirements. We report the basic design of the new timing system and recent studies about key elements of Event Timing System instruments.
	Slides THCOCA04 [1.559 MB]

FRCOBAB04	Beam Feedback System Challenges at SuperKEKB Injector Linac	controls, feedback, emittance, EPICS	1497
	K. Furukawa, R. Ichimiya, M. Iwasaki, H. Kaji, F. Miyahara, T.T. Nakamura, M. Satoh, T. Suwada KEK, Ibaraki, Japan
	SuperKEKB electron/positron asymmetric collider is under construction in order to elucidate new physics beyond the standard model of elementary particle physics. This will be only possible by a precise measurement with 40-times higher luminosity compared with that of KEKB. The injector linac should be upgraded to enable a 20-times smaller beam size of 50 nm at the collision point and twice-larger stored beam current with short lifetime of 10 minutes. At the same time two light source rings, PF and PF-AR, should be filled in top-up injection mode. To this end the linac should be operated with precise beam controls. Dual-layer controls with EPICS and MRF event systems are being enhanced to support precise pulse-to-pulse beam modulation (PPM) at 50Hz. A virtual accelerator (VA) concept is introduced to enable a single linac behaving as four VAs switched by PPM, where each VA corresponds to one of four top-up injections into storage rings. Each VA should be accompanied with independent beam orbit and energy feedback loops to maintain the required beam qualities. The requirements from SuperKEKB HER and LER for beam emittance, energy-spread, and charge are especially challenging.
	Slides FRCOBAB04 [1.596 MB]

Paper

Title

Other Keywords

Page

MOCOAAB04

The Integrated Control System at ESS

controls, software, hardware, timing

12

G. Trahern
ESS, Lund, Sweden
M. Reščič
Cosylab, Ljubljana, Slovenia

The European Spallation Source (ESS) is a high current proton LINAC to be built in Lund, Sweden. The LINAC delivers 5 MW of power to the target at 2500 MeV, with a nominal current of 50 mA. The project entered Construction phase on January 1st 2013. In order to design, develop and deliver a reliable, well-performing and standardized control system for the ESS facility, the Integrated Control System (ICS) project has been established. The ICS project also entered Construction phase on January 1st. ICS consists of four distinct Core components (Physics, Software Services, Hardware and Protection) that make up the essence of the control system. Integration Support activities support the stakeholders and users, and the Control System Infrastructure provides the required underlying infrastructure for operating the control system and the facility. The current state of the control system project and key decisions are presented as well as immediate challenges and proposed solutions.

Slides MOCOAAB04 [11.760 MB]

MOPPC027

The Control System of CERN Accelerators Vacuum [LS1 Activities and New Developments]

controls, vacuum, PLC, software

123

P. Gomes, F. Antoniotti, F. Bellorini, S. Blanchard, J-P. Boivin, J. Gama, G. Girardot, G. Pigny, B. Rio, H. Vestergard
CERN, Geneva, Switzerland
L. Kopylov, S. Merker, M.S. Mikheev
IHEP, Moscow Region, Russia

After 3 years of operation, the LHC entered its first Long Shutdown period (LS1), in February 2013. Major consolidation and maintenance works will be performed across the whole CERN’s accelerator chain, in order to prepare the LHC to restart at higher energy, in 2015. The rest of the accelerator complex shall resume in mid-2014. We report on the recent and on-going vacuum-controls projects. Some of them are associated with the consolidations of the vacuum systems of LHC and of its injectors; others concern the complete renovation of the controls of some machines; and there are also some completely new installations. Due to the wide age-span of the existing vacuum installations, there is a mix of design philosophies and of control-equipment generations. The renovation and the novel projects offer an opportunity to improve the Quality Assurance of vacuum controls by: identifying, documenting, naming and labelling all pieces of equipment; minimising the number of equipment versions with similar functionality; homogenising the control architectures, while converging to a single software framework.

Poster MOPPC027 [67.309 MB]

MOPPC109

Status of the MAX IV Laboratory Control System

controls, storage-ring, interface, TANGO

366

J. Lidón-Simon, V.H. Hardion, J.J. Jamroz, M. Lindberg, A.G. Persson, D.P. Spruce
MAX-lab, Lund, Sweden

The MAX IV Laboratory is a new synchrotron light source being built in Lund, south Sweden. The whole accelerator complex consists of a 3GeV 300m long full energy linac, two Storage Rings of 1.5GeV and 3GeV and a Short Pulse Facility for pump and probe experiments with bunches around 100fs long. First x-rays for the users are expected to be delivered in 2015 for the SPF and 2016 for the Storage Rings. This paper describes the progress in the design of the control system for the accelerator and the different solutions adopted for data acquisition, synchronisation, networking, safety and other aspects related to the control system

Poster MOPPC109 [0.522 MB]

MOPPC111

Overview of LINAC4 Beam Instrumentation Software

software, emittance, controls, electronics

374

L.K. Jensen, M. Andersen, A. Guerrero, B. Kolad, M. Ludwig, U. Raich, F. Roncarolo
CERN, Geneva, Switzerland

This paper presents an overview of results from the recent LINAC4 commissioning with H⁻ beam at CERN. It will cover beam instrumentation systems acquiring beam position, intensity, size and emittance starting from the project proposal to commissioning results.

MOPPC118

Development of EPICS Accelerator Control System for the IAC 44 MeV Linac

controls, EPICS, power-supply, database

385

A. Andrews, B.L. Berls, C.F. Eckman, K. Folkman, M. Khandaker, Y. Kim, C. O'Neill, J. Ralph
IAC, Pocatello, IDAHO, USA
P. Buaphad, Y. Kim
ISU, Pocatello, Idaho, USA

The Idaho Accelerator Center (IAC) of Idaho State University (ISU) has been operating nine low energy accelerators. Since the beginning of the fall semester of 2012, the ISU Advanced Accelerator and Ultrafast Beam Lab (AAUL) group has been working to develop a new EPICS system to control 47 magnet power supplies for an IAC 44 MeV L-band linear accelerator. Its original control system was fully analog, which had several limitations to get good reproducibility and stability during the accelerator operation. This paper describes our group’s team effort and accomplishment in developing a new EPICS system to control 15 Lambda EMS and 32 TDK-Lambda ZUP power supplies for the IAC L-band linear accelerator. In addition, we also describe several other useful tools such as the save and restore function.

Poster MOPPC118 [1.175 MB]

MOPPC120

Commissioning Status of NSLS-II Vacuum Control System

vacuum, controls, PLC, EPICS

389

H. Xu, H.-C. Hseuh, S. Leng, D. Zigrosser
BNL, Upton, Long Island, New York, USA

The National Synchrotron Light Source II (NSLS-II) is a state-of-the-art 3 GeV third generation light source currently under integrated testing and commissioning at Brookhaven National Laboratory. The vacuum systems are monitored by vacuum gauges and ion pump current. The gate valves are controlled by programmable logic controllers (PLC) using voting scheme. EPICS application codes provide the high level monitoring and control through the input-output controllers. This paper will discuss the commissioning status of the various aspects of vacuum control system.

Poster MOPPC120 [0.648 MB]

TUPPC017

Development of J-PARC Time-Series Data Archiver using Distributed Database System

database, distributed, EPICS, operation

584

N. Kikuzawa, Y. Kato, A. Yoshii
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan
H. Ikeda
JAEA, Ibaraki-ken, Japan

J-PARC(Japan Proton Accelerator Research Complex) is consists of much equipment. In Linac and 3GeV synchrotron, the data of over the 64,000 EPICS records for these apparatus control is being collected. The data has been being stored by a RDB system using PostgreSQL now, but it is not enough in availability, performance, and extendibility. Therefore, the new system architecture is required, which is rich in the pliability and can respond to the data increasing continuously for years to come. In order to cope with this problem, we considered adoption of the distributed database archtecture and constructed the demonstration system using Hadoop/HBase. We present results of these demonstration.

TUPPC040

Saclay GBAR Command Control

PLC, software, controls, positron

650

P. Lotrus
CEA, Gif-sur-Yvette, France
G.A. Durand
CEA/DSM/IRFU, France

The GBAR experiment will be installed in 2016 at CERN’s Antiproton Decelerator, ELENA extension, and will measure the free fall acceleration of neutral antihydrogen atoms. Before construction of GBAR, the CEA/Irfu institute has built a beam line to guide positrons produced by a Linac (linear particle accelerator) through either a materials science line or a Penning trap. The experiment command control is mainly based on Programmable Logical Controllers (PLC). A CEA/Irfu-developed Muscade SCADA (Supervisory Control and Data Acquisition) is installed on a Windows 7 embedded shoebox PC. It manages local and remote display, and is responsible for archiving and alarms. Muscade was used because it is rapidly and easily configurable. The project required Muscade to communicate with three different types of PLCs: Schneider, National Instruments (NI) and Siemens. Communication is based on Modbus/TCP and on an in-house protocol optimized for the Siemens PLC. To share information between fast and slow controls, a LabVIEW PC dedicated to the trap fast control communicates with a PLC dedicated to security via Profinet fieldbus.

Poster TUPPC040 [1.791 MB]

TUPPC130

The Design of NSLS-II High Level Physics Applications

controls, GUI, booster, closed-orbit

890

L. Yang, J. Choi, Y. Hidaka, Y. Li, G. Shen, G.M. Wang
BNL, Upton, Long Island, New York, USA

The NSLS-II high level physics applications are an effort from both controls and accelerator physics group. They are developed with the client-server approach, where the services are mainly provided by controls group in terms of web service or libraries.

TUCOCA01

XFEL Machine Protection System (MPS) Based on uTCA

kicker, operation, FPGA, undulator

906

S. Karstensen, M.E. Castro Carballo, J.M. Jäger, M. Staack
DESY, Hamburg, Germany

The European X-Ray Free Electron Laser (XFEL) linear accelerator will provide an electron beam with energies of up to 17.5 GeV and will use it to generate extremely brilliant pulses of spatially coherent xrays. With a designated average beam power of up to 600 kW and beam spot sizes down to few micrometers, the machine will hold a serious damage potential. To ensure safe operation of the accelerator it is necessary to detect dangerous situations by closely monitoring beam losses and the status of critical components. This is the task of the uTCA* based machine protection system (MPS). Many design features of the system have been influenced by experience from existing facilities, particularly the Free Electron Laser in Hamburg (FLASH), which is a kind of 1:10 prototype for the XFEL. A high flexibility of the MPS is essential to guarantee a minimum downtime of the accelerator. The MPS is embedded in the DOOCS** control system.
* uTCA: Micro Telecommunications Computing Architecture
** DOOCS: Distributed Object Oriented Control System

Slides TUCOCA01 [2.255 MB]

THPPC009

Design and Status of the SuperKEKB Accelerator Control Network System

network, controls, EPICS, Ethernet

1107

M. Iwasaki, K. Furukawa, H. Kaji, K. Mikawa, T.T. Nakamura, T. Obina, M. Satoh
KEK, Ibaraki, Japan
T. Aoyama, M. Fujita, S. Kusano, T. Nakamura, N. Tanaka, K. Yoshii
Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan

SuperKEKB is the upgrade of the KEKB asymmetric energy electron-positron collider, for the next generation B-factory experiment in Japan. It is designed to achieve a luminosity of 8x10³⁵/cm²/s, 40 times higher than the world highest luminosity record at KEKB. For SuperKEKB, we upgrade the accelerator control network system, which connects all devices in the accelerator. To construct the higher performance network system, we install the network switches based on the 10 gigabit Ethernet (10GbE) for the wider bandwidth data transfer. Additional optical fibers, for the reliable and redundant network and for the robust accelerator control timing system, are also installed. For the KEKB beamline construction and accelerator components maintenance, we install the new wireless network system based on the Leaky Coaxial (LCX) cable antennas into the 3 km circumference beamline tunnel. We reconfigure the network design to enhance the reliability and security of the network. In this paper, the design and current status of the SuperKEKB accelerator control network system will be presented.

Poster THPPC009 [1.143 MB]

THPPC032

Embedded EPICS Controller for KEK Linac Screen Monitor System

controls, PLC, EPICS, Linux

1150

M. Satoh, K. Furukawa, K. Mikawa, T. Suwada
KEK, Ibaraki, Japan
T. Kudou, S. Kusano
Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan

The screen monitor (SC) of the KEK linac is a beam diagnostics device to measure transverse beam profiles with a fluorescent screen. The screen material is made of 99.5% Al2O3 and 0.5% CrO3, with which a sufficient amount of fluorescent light can be obtained when electron and positron beams impinge on the screen. the fluorescent light with a camera embedded with a charge-coupled device (CCD), the transverse spatial profiles of the beam can be easily measured. Compact SCs were previously developed in 1995 for the KEKB project. About 110 compact SCs were installed into the beam line at that time. VME-based computer control system was also developed in order to perform fast and stable control of the SC system. However, the previous system becomes obsolete and hard to maintain. Recently, a new screen monitor control system for the KEK electron/positron injector linac has been developed and fully installed. The new system is an embedded EPICS IOC based on the Linux/PLC. In this paper, we present the new screen monitor control system in detail.

THPPC033

Upgrade of BPM DAQ System for SuperKEKB Injector Linac

emittance, electron, positron, damping

1153

M. Satoh, K. Furukawa, F. Miyahara, T. Suwada
KEK, Ibaraki, Japan
T. Kudou, S. Kusano
Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan

The non-destructive beam position monitor (BPM) is indispensable diagnostic tool for the stable beam operation. In the KEK Linac, approximately nineteen BPMs with the strip-line type electrodes are used for the beam orbit measurement and feedback. In addition, some of them are also used for the beam energy feedback loops. The current data acquisition (DAQ) system consists of the fast digital oscilloscopes. A signal from each electrode is analyzed with a predetermined response function up to 50 Hz. In the present DAQ system, the measurement precision of beam position is limited to around 0.5 mm because of ADC resolution. Towards SuperKEKB project, we have a plan to upgrade the BPM DAQ system since the Linac should provide the smaller emittance beam in comparison with previous KEKB Linac. We will report the system description of the new DAQ system and the results of performance test in detail.

THPPC043

Implement an Interface for Control System to Interact with Oracle Database at SSC-LINAC

database, EPICS, interface, controls

1171

S. An, K. Gu, X.J. Liu, J.Q. Wu, W. Zhang
IMP, Lanzhou, People's Republic of China

SSC-LINAC control system is based on EPICS architecture. The control system includes ion sources, vacuum, digital power supplies, etc. In these subsystems, some of those need to interactive with Oracle database, such as power supplies control subsystem, who need to get some parameters while power supplies is running and also need to store some data with Oracle. So we design and implementation an interface for EPICS IOC to interactive with Oracle database. The interface is a soft IOC which is also bases on EPICS architecture, so others IOC and OPI can use the soft IOC interactive with Oracle via Channel Access protocol.

THPPC045

The SSC-Linac Control System

controls, software, hardware, operation

1173

W. Zhang, S. An, S.Z. Gou, K. Gu, X.J. Liu, M. Yue
IMP, Lanzhou, People's Republic of China

This article gives a brief description of the SSC-Linac control system for Heavy Ion Research Facility of Lanzhou(HIRFL). It describes in detail mainly of the overall system architecture, hardware and software. The overall system architecture is the distributed control system. We have adopted the the EPICS system as the system integration tools to develop the control system of the SSC-Linac. We use the NI PXIe chassis and PXIe bus master as a front-end control system hardware. Device controllers for each subsystem were composed of the commercial products or components designed by subsystems. The operating system in OPI and IOC of the SSC-Linac control system will use Linux.

THPPC103

Timing System at MAX IV

timing, gun, injection, storage-ring

1300

J.J. Jamroz, V.H. Hardion, J. Lidón-Simon, L. Malmgren, A.M. Milán, A.M. Mitrovic, R. Nilsson, M. Sjöström, D.P. Spruce
MAX-lab, Lund, Sweden

The MAX IV Laboratory is the successor of the MAX-lab national laboratory in Sweden. The facility is being constructed at Brunnshög in the North Eastern part of Lund and will contain one long linac 3GeV (full energy injector), two storage rings (SR 1.5GeV and SR 3GeV) and a short pulse facility (SPF). This paper describes the design status of the timing system in 2013.

Poster THPPC103 [7.134 MB]

THPPC138

A System for Automatic Locking of Resonators of Linac at IUAC

controls, interface, operation, feedback

1376

R.N. Dutt, G.K. Chaudhari, S. Ghosh, D. Kanjilal, J. Karmakar, A. Pandey, P. Patra, A. Rai, A. Roy, B.K. Sahu
IUAC, New Delhi, India
S. Sahoo
VECC, Kolkata, India

The superconducting LINAC booster of IUAC consists of five cryostats housing a total of 27 Nb quarter wave resonators (QWRs). The QWRs are phase locked against the master oscillator at a frequency of 97 MHz. Cavity frequency tuning is done by a Helium gas based slow tuner. Presently, the frequency tuning and cavity phase locking is done from the control room consoles. To automate the LINAC operation, an automatic phase locking system has been implemented. The slow tuner gas pressure is automatically controlled in response to the frequency error of the cavity. The fast tuner is automatically triggered into phase lock when the frequency is within the lock window. This system has band implemented sucessfully on a few cavities. The system is now being installed for the remaining cavities of the LINAC booster.
[1]S.Ghosh et al Phys. Rev. ST Accel. Beams 12, 040101 (2009).

Poster THPPC138 [4.654 MB]

THCOCA04

Upgrade of Event Timing System at SuperKEKB

timing, injection, positron, operation

1453

H. Kaji, K. Furukawa, M. Iwasaki, E. Kikutani, T. Kobayashi, F. Miyahara, T.T. Nakamura, M. Suetake, M. Tobiyama
KEK, Ibaraki, Japan
T. Kudo, S. Kusano
Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan
T. Okazaki
EJIT, Hitachi, Ibaraki, Japan

The timing system of the KEKB accelerator will be upgraded for the SuperKEKB project. One of difficulties at SuperKEKB is the positron injection. It takes more than 40ms since positron pulse must be stored at newly constructed damping ring for at least 40ms. Timings of whole accelerators are precisely synchronized for such a long period. We must manage highly frequent injections even with this situation. Typically beam pulse is delivered to one of rings at every 20ms. Besides, the new system must have a capability of realtime selection of injection RF-bucket - we call it "Bucket Selection" at KEKB - for equalizing bunch current at main rings. Bucket Selection also will be upgraded to synchronize buckets of damping ring and those of main rings. This includes the expansion of maximum delay time up to 2ms and the pulse-by-pulse shift of RF phase at 2nd half of injection Linac. We plan to upgrade the Event Timing System from "2-layer type", which simply connect one generator and one receiver, to "cascade type" for satisfying the new injection requirements. We report the basic design of the new timing system and recent studies about key elements of Event Timing System instruments.

Slides THCOCA04 [1.559 MB]

FRCOBAB04

Beam Feedback System Challenges at SuperKEKB Injector Linac

controls, feedback, emittance, EPICS

1497

K. Furukawa, R. Ichimiya, M. Iwasaki, H. Kaji, F. Miyahara, T.T. Nakamura, M. Satoh, T. Suwada
KEK, Ibaraki, Japan

SuperKEKB electron/positron asymmetric collider is under construction in order to elucidate new physics beyond the standard model of elementary particle physics. This will be only possible by a precise measurement with 40-times higher luminosity compared with that of KEKB. The injector linac should be upgraded to enable a 20-times smaller beam size of 50 nm at the collision point and twice-larger stored beam current with short lifetime of 10 minutes. At the same time two light source rings, PF and PF-AR, should be filled in top-up injection mode. To this end the linac should be operated with precise beam controls. Dual-layer controls with EPICS and MRF event systems are being enhanced to support precise pulse-to-pulse beam modulation (PPM) at 50Hz. A virtual accelerator (VA) concept is introduced to enable a single linac behaving as four VAs switched by PPM, where each VA corresponds to one of four top-up injections into storage rings. Each VA should be accompanied with independent beam orbit and energy feedback loops to maintain the required beam qualities. The requirements from SuperKEKB HER and LER for beam emittance, energy-spread, and charge are especially challenging.

Slides FRCOBAB04 [1.596 MB]