IPAC2011 - List of Keywords (EPICS)

Paper	Title	Other Keywords	Page
MOPC032	Improvement of the RF System for the PEFP 100 MeV Proton Linac*	linac, LLRF, controls, proton	139
	K.T. Seol, Y.-S. Cho, H.S. Kim, H.-J. Kwon, Y.-G. Song KAERI, Daejon, Republic of Korea
	Funding: This work is supported by the Ministry of Education, Science and Technology of the Korean Government. The 100 MeV proton linear accelerator of the Proton Engineering Frontier Project (PEFP) has been developed and will be installed in Gyeong-ju site. The 20 MeV accelerator operated in Korea Atomic Energy Research Institute (KAERI) site will be also moved and reinstalled. The LLRF control systems for the 20 MeV accelerator were improved and have been operated within the stability of ±1% in RF amplitude and ±1 degree in RF phase. 7 sets of the extra LLRF control system will be installed with a RF reference system for the 100 MeV accelerator. Waveguide layout was also improved to install HPRF systems for the 100 MeV accelerator. Some of the HPRF components including klystrons, circulators, and RF windows are under purchase. The waveguide sections penetrating into the tunnel, which are fixed in a concrete floor with the bending structure for radiation shielding, were fabricated into a piece of waveguide to prevent the moisture and any foreign debris inside the concrete block. The details of the RF system improvement are presented.

MOPO041	Preliminary Testing of TPS Timing System	controls, gun, linac, booster	574
	C.Y. Wu, Y.-T. Chang, J. Chen, Y.-S. Cheng, P.C. Chiu, K.T. Hsu, K.H. Hu, C.H. Kuo, C.-Y. Liao NSRRC, Hsinchu, Taiwan
	The timing system of Taiwan Photon Source (TPS) provides synchronization for electron gun, modulators of linac, pulse magnet power supplies, booster power supply ramp, bucket addressing of storage ring, diagnostic equipments, beamline gating signal for top-up injection. The timing system utilizes a central event generator to generate events and distribute them over optic fiber network, and decodes them at the event receivers. The system supports uplink functionality which will be used for the fast interlock system to distribute signals like beam dump and post-mortem trigger. The timing system has now been in operation for Linac of TPS. This paper presents prototype for the timing system of TPS.

MOPZ024	Muon Ionization Cooling Experiment: Controls and Monitoring	controls, emittance, monitoring, target	856
	P.M. Hanlet IIT, Chicago, Illinois, USA C.N. Booth Sheffield University, Sheffield, United Kingdom
	Funding: NSF PHY0842798 The Muon Ionization Cooling Experiment (MICE) is a demonstration experiment to prove the viability of cooling a beam of muons for use in a Neutrino Factory and Muon Collider. The MICE cooling channel is a section of a modified Study II cooling channel which will provide a 10% reduction in beam emittance. In order to ensure a reliable measurement, we intend to measure the beam emittance before and after the cooling channel at the level of 1%, or an absolute measurement of 0.001. This renders MICE as a precision experiment which requires strict controls and monitoring of all experimental parameters in order to control systematic errors. The MICE Controls and Monitoring system is based on EPICS and integrates with the DAQ and Data monitoring systems. A description of this system, its implementation, and performance during recent muon beam data collection will be discussed. For the MICE collaboration.

TUPC116	Beam Diagnostics Global Data Warehouse Implementation and Application at SSRF*	diagnostics, controls, feedback, monitoring	1287
	Y.B. Leng, Z.C. Chen, Y.B. Yan, R.X. Yuan SSRF, Shanghai, People's Republic of China
	A fully functional beam diagnostics system has been developed at SSRF serving user operation and machine study since 2009. Global orbit disturbances, BPM failures and DCCT noise signal have been observed randomly. Without correct event trigger it is hard to capture real time data and analyze the cause of the above failures. A BI global data warehouse has been implemented as a solution to buffer online data and do correlation analyze at SSRF.

TUPC117	Embedded EPICS IOC Data Acquisition System for Beam Instability Research	betatron, feedback, wakefield, storage-ring	1290
	N. Zhang, Y.B. Leng SSRF, Shanghai, People's Republic of China
	Funding: This research is supported by National Natural Science Fund(No.Y155131061). To be a part of beam diagnostics system in SSRF 3.5 GeV electron storage ring, a high performance oscilloscope is introduced to build a bunch by bunch data acquisition and processing dedicated system, which is mainly used to observe individual bunch position in transverse plane and bunch charge. By analysis of Betatron oscillation amplitude distribution and corresponding filling pattern, we hope to find phenomenon about multi-bunch Wakefield effect[1] on beam Betatron oscillation for beam instability research. The system is configured as a scope IOC, and integrated into the EPICS based control system. Application of this system and some data analysis results are also discussed in this paper.

TUPC125	Test of the Front-end Electronics and Acquisition System for the LIPAC BPMs	pick-up, controls, linac, LLRF	1311
	D. Belver, I. Arredondo, P. Echevarria, J. Feuchtwanger, H. Hassanzadegan, M. del Campo ESS-Bilbao, Zamudio, Spain F.J. Bermejo Bilbao, Faculty of Science and Technology, Bilbao, Spain J.M. Carmona, A. Guirao, A. Ibarra, L.M. Martinez Fresno, I. Podadera CIEMAT, Madrid, Spain V. Etxebarria, J. Jugo, J. Portilla University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain N. Garmendia, L. Muguira ESS Bilbao, Bilbao, Spain
	Funding: Work partially supported by Spanish Ministry of Science and Innovation under project AIC10-A-000441 and ENE2009-11230. Non-interceptive Beam Position Monitors pickups (BPMs) will be installed along the beamlines of the IFMIF/EVEDA linear prototype accelerator (LIPAC) to measure the transverse beam position in the vacuum chamber in order to correct the dipolar and tilt errors. Depending on the location, the BPMs response must be optimized for a beam of 175 MHz bunch repetition, an energy range from 5 up to 9 MeV, a current between 0.1 and 125 mA and continuous and pulse operation. The requirements from beam dynamics for the BPMs are quite stringent, aiming for the position an accuracy below 100 μm and a resolution below 10 μm, and for the phase an accuracy below 2° and a resolution below 0.3°. To meet these specifications, the BPM electronics system developed by ESS-Bilbao has been adapted for its use with the BPMs of LIPAC. This electronics system is divided in an Analog Front-End unit, where the signals are conditioned and converted to baseband, and a Digital Unit to sample them and calculate the position and phase. The electronics system has been tested at CIEMAT with a wire test bench and a prototype BPM. In this contribution, the tests performed will be fully described and the results discussed.

TUPC145	Vibration and Beam Motion Monitoring in TLS	controls, monitoring, photon, brilliance	1365
	Y.K. Chen, J. Chen, P.C. Chiu, K.T. Hsu, K.H. Hu, C.H. Kuo NSRRC, Hsinchu, Taiwan
	Due to asynchronous nature of various vibration and beam motion related subsystems, it is hard to analysis the correlation between them. Therefore, the synchronous distributed data acquisition system is designed to make an improvement for better analysis. For different circumstances, the system supports two data flow: one is display the real-time data which could be archived continuously and the other is waveform which could be acquired on demand or triggered by event with high sampling rate. In addition, the viewer will improve some useful features, such as trigger by customize signal or EPICS PV record, automatic screenshot and plot the multiple history events. The preliminary test results and implementation details will be summarized in this report.

TUPC161	Cavity Beam Position Monitor System for ATF2	cavity, dipole, quadrupole, extraction	1410
	S.T. Boogert, R. Ainsworth, G.E. Boorman, S. Molloy Royal Holloway, University of London, Surrey, United Kingdom A.S. Aryshev, Y. Honda, N. Terunuma, J. Urakawa KEK, Ibaraki, Japan F.J. Cullinan, N.Y. Joshi, A. Lyapin JAI, Egham, Surrey, United Kingdom J.C. Frisch, D.J. McCormick, J. Nelson, T.J. Smith, G.R. White SLAC, Menlo Park, California, USA A. Heo, E.-S. Kim, Y.I. Kim KNU, Deagu, Republic of Korea
	The Accelerator Test Facility 2 (ATF2) in KEK, Japan, is a prototype scaled demonstrator system for the final focus required for a future high energy lepton linear collider. The ATF2 beam-line is instrumented with a total of 41 high resolution C and S band resonant cavity beam position monitors (BPM) with associated mixer electronics and digitizers. In addition 4 high resolution BPMs have been recently installed at the interaction point, we briefly describe the first operational experience of these cavities in the ATF2 beam-line. The current status of the overall BPM system is also described, with a focus on operational techniques and performance.

TUPS052	An FPGA Based Controller for the MICE Target	target, controls, injection, extraction	1647
	P.J. Smith, C.N. Booth, P. Hodgson, E. Overton, M. Robinson Sheffield University, Sheffield, United Kingdom J. Leaver, K.R. Long Imperial College of Science and Technology, Department of Physics, London, United Kingdom
	Funding: UK Science and Technology Facilities Council The MICE experiment uses a beam of low energy muons to test the feasibility of ionization cooling. This beam is derived parasitically from the ISIS accelerator at the Rutherford Appleton Laboratory. A target mechanism has been developed that rapidly inserts a small titanium target into the circulating proton beam immediately prior to extraction without unduly disturbing the primary ISIS beam. The original control electronics for the MICE target was based upon an 8-bit PIC. Although this system was fully functional it did not provide the necessary IO to permit full integration of the target electronics onto the MICE EPICS system. A three phase program was established to migrate both the target control and DAQ electronics from the original prototype onto a fully integrated FPGA system that is capable of interfacing with EPICS through a local PC. This paper discusses this upgrade program, the motivation behind it and the performance of the upgraded target controller.

WEPC034	High-level Application Programs for the TPS Commissioning and Operation at NSRRC	quadrupole, controls, storage-ring, target	2079
	F.H. Tseng, H.-P. Chang, C.C. Chiang NSRRC, Hsinchu, Taiwan
	For the Taiwan Photon Source (TPS) commissioning and operation we have developed more MATLAB-based application programs and tested them on the Taiwan Light Source (TLS). These additional applications built with the MATLAB Middle Layer (MML) include beta function measurement, dispersion function measurement, chromaticity measurement, chromaticity correction, and tune control. In this paper, we will illustrate what algorithms we use in these applications and show the test results. Especially, in order to get the first beam in the TPS commissioning, we adopt the RESOLVE algorithm for the beam steering and it has been built successfully in UNIX-like systems such as Mac OSX and different Linux versions. It can provide us some exercises of error finding and correction before the TPS commissioning in 2013.

WEPC121	XML Constructs for Developing Dynamics Applications or Towards a Universal Representation of Particle Accelerators in XML	controls, extraction, lattice, diagnostics	2295
	J.T.M. Chrin, R.A. Krempaska, H. Lutz, G. Prekas PSI, Villigen, Switzerland T.A. Pelaia ORNL, Oak Ridge, Tennessee, USA
	A recognized practice within the development of high-level beam dynamics applications is to separate data parameters destined for the configuration of the application from the programming language domain. The contemporary approach is to generate input files that provide the configuration parameters in a structured data format specified by the Extensible Markup Language (XML), enhancing flexibility and simplifying code maintenance. Furthermore, a careful choice of syntactic constructs, i.e. structured elements, attributes, etc., that map well to the various accelerator components, provides a basis for portability of applications. This has been exemplified by the XAL software package which initiated an XML description of the Standard Machine Format (SMF) accelerator object model. We have since adopted XML-SMF to provide an XML representation of both the Swiss Light Source (SLS) and the SwissFEL Injector Test Facility. We demonstrate how such XML constructs allow us to deploy the same orbit display application at both facilities. Our experience leads us to advocate a Universal Machine Format (UMF) that encompasses an all-inclusive XML schema for the management of accelerator information.
	Poster WEPC121 [0.313 MB]

WEPC146	Design and Implementation of Distributed Control System for PEFP 100-MeV Proton Accelerator*	controls, proton, monitoring, vacuum	2334
	Y.-G. Song, Y.-S. Cho, J.-H. Jang, H.-J. Kwon KAERI, Daejon, Republic of Korea
	Funding: This work is supported by the Ministry of Education, Science and Technology of the Korean Government. The Proton Engineering Frontier Project (PEFP) has been developing the control system for 100-MeV proton accelerator. The PEFP control system should be designed to fit control conditions based on networked and distributed real-time system composed of several sub-systems such as machine control, diagnostic control, timing, and interlock. In order to implement the distributed control system, the Experimental Physics and Industrial Control System (EPICS) has been chosen as the middleware of PEFP control system. The EPICS software provides a distributed architecture that supports a wide range of solution such as independent programming tool, operator interface tool, database and web-based archiving tools. In this paper, we will present the details of the design and implementation issues of the PEFP control system.

WEPC152	Android Based Mobile Monitoring System for EPICS Networks: Vacuum System Application*	controls, monitoring, vacuum, ion-source	2337
	I. Badillo, I. Arredondo, M. Eguiraun, J. Feuchtwanger, G. Harper ESS-Bilbao, Zamudio, Spain J. Jugo University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain
	Funding: The present work is supported by the Basque Government and Spanish Ministry of Science and Innovation. When cabling is not really needed for performance reasons, wireless monitoring is a good choice for large scientific facilities like particle accelerators, due to the quick implementation. There are several wireless flavors: ZigBee, WiFi etc. depending on requirements of specific application. In this work, a wireless monitoring system for EPICS based on an Android device is presented. The task is to monitor the vacuum control system of ISHN project at ESSBilbao, where control system variables are acquired over the network and published in a mobile device. This allows the operator to check process variables everywhere the signal spreads. In this approach, a Python based server is continuously getting EPICS variables via CA protocol and sending them through a WiFi network using ICE middleware, a toolkit oriented to develop distributed applications. Finally, the mobile device reads and shows the data to the operator. The security of the communication is ensured by a limited WiFi signal spread, following the same idea as in NFC for larger distances. With this approach, local monitoring and control applications are easily implemented, useful in starting up and maintenance stages.

WEPC154	EPICS HyperArchiver: initial tests at ESSBilbao	controls, insertion, ion-source, ion	2343
	M. del Campo ESS-Bilbao, Zamudio, Spain M.G. Giacchini, L.G. Giovannini INFN/LNL, Legnaro (PD), Italy J. Jugo University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain
	Funding: The present work is supported by the Basque Government and Spanish Ministry of Science and Innovation. The aim of this work is to present the results obtained after different tests performed regarding data storage for an Ion Source, by means of an EPICS control system at ESS-Bilbao (Spain). As a first approach, data was recorded on a MySQL database, using a traditional EPICS RDB Channel Archiver instance, maintained at ORNL SNS (USA). Nevertheless, initial results shown the need of an evolution towards a high performance scalable database. Therefore, current tests are focused on the customization and usage of a HyperArchiver instance, developed at INFN/LNL (Italy), which uses Hypertable as its main database. Hypertable is a distributed, high performance non relational database, released under GNU licence and focused on data-intensive tasks. At ESS Bilbao, a slightly modified version of the HyperArchiver was used, due to the necessity of an improvement on the management of array PVs. Regarding data retrieval and visualization, a python GUI developed at ESS-Bilbao was used, in opposition to the traditional CSS data browser, trying to make data retrieval as fast and simple as possible. Hypertable is presented as a high performance alternative to MySQL for any EPICS control system.

WEPC155	Fast Acquisition Multipurpose Controller with EPICS Integration and Data Logging	controls, status, LLRF	2346
	I. Arredondo, D. Belver, P. Echevarria, H. Hassanzadegan, M. del Campo ESS-Bilbao, Zamudio, Spain V. Etxebarria, J. Jugo University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain N. Garmendia, L. Muguira ESS Bilbao, Bilbao, Spain
	Funding: Funding Agency The present work is supported by the Basque Government and Spanish Ministry of Science and Innovation. This work introduces a fast acquisition multipurpose controller (MC), based on a XML configuration with EPICS integration and Data Logging. The main hardware is an FPGA based board, connected to a Host PC. This Host computer acts as the local controller and implements an IOC, integrating the device into an EPICS network. Java has been used as the main programming language in order to make the device fit the desired application. The whole process includes the use of different technologies: JNA to handle FPGA API, JavaIOC to integrate EPICS and XML w3c DOM classes to configure each particular application. Furthermore, a MySQL database is used for data storage, together with the deployment of an EPICS ArchiveEngine instance, offering the possibility to record data from both, the ArchiveEngine and a specifically designed Java library. The developed Java specific tools include different methods: FPGA management, creation and use of EPICS server, mathematical data processing, Archive Engine's MySQL database connection and creation/initialization of the application structure by means of an XML file. This MC has been used to implement a BPM and an LLRF applications for ESS-Bilbao.

WEPC156	Virtual Power Supply Control Environment for the TPS Project	power-supply, controls, quadrupole, storage-ring	2349
	Y.-S. Cheng, Y.-T. Chang, J. Chen, P.C. Chiu, K.T. Hsu, K.H. Hu, C.H. Kuo, C.-Y. Liao, C.Y. Wu NSRRC, Hsinchu, Taiwan
	The Taiwan Photon Source (TPS) is the latest generation of 3 GeV synchrotron light source which has been under construction since 2010. The control system infrastructure of TPS project is based upon the EPICS framework. In order to develop the control applications before power supplies of magnets delivered, it is necessary to set up the virtual control environment to develop high level application programs for the power supplies of magnets in advance. The high level application programs include operation process, degauss process and etc. for power supplies of magnet. The soft-IOCs (Input Output Controller) and various database records are needed to be built to simulate the power supply control environment. In addition, the operation interfaces of power supply will be designed and integrated according to location properties. The efforts will be described at this report.

WEPC158	The EMMA Accelerator, A Diagnostic Systems Overview	injection, extraction, diagnostics, pick-up	2355
	R.J. Smith, M. Dufau, C. Hill, J.K. Jones, A. Kalinin, L. Ma, P.A. McIntosh, B.D. Muratori, B.J.A. Shepherd STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom J.S. Berg BNL, Upton, Long Island, New York, USA N. Bliss, G. Cox, A. Gallagher, A. Oates STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom R.G. Borrell WareWorks Ltd, Manchester, United Kingdom J.L. Crisp FRIB, East Lansing, Michigan, USA K.M. Hock, D.J. Holder Cockcroft Institute, Warrington, Cheshire, United Kingdom M.G. Ibison, I. Kirkman The University of Liverpool, Liverpool, United Kingdom D.J. Kelliher, S. Machida STFC/RAL/ASTeC, Chilton, Didcot, Oxon, United Kingdom
	The ‘EMMA’ Non-Scaling Fixed Field Alternating Gradient (NS-FFAG) international project is currently being commissioned at Daresbury Laboratory, UK. This accelerator has been equipped with a number of diagnostic systems to facilitate this. These systems include a novel time-domain-multiplexing BPM system, moveable screen systems, a time-of-flight instrument, Faraday cups, and injection/extraction tomography sections to analyse the single bunch beams. An upgrade still to implement includes the installation of a fast wall current monitor. This paper gives an overview of these systems and shows some data and results that have contributed to the successful demonstration of a serpentine acceleration by this novel accelerator.

THXA01	Recent Trends in Accelerator Control Systems	controls, LLRF, feedback, coupling	2844
	I. Verstovšek, F. Amand, M. Pleško, K. Žagar Cosylab, Ljubljana, Slovenia
	The talk will discuss the approaches of different accelerators, such as FAIR, ESS, MedAustron, XFEL, etc. An overview of different approaches will be given with an emphasis of the recent spectrum of various realizations of accelerator control systems. The talk will not be limited to open source and off-the-shelf software frameworks only but will touch all trends in modern accelerators, including recent trends in hardware. The role of the control system will be highlighted as a common integration framework for various applications, with an emphasis on its increased complexity and scale, and the need for improved reliability and an appropriate service. How control systems can help support the requirements-shaping process early in the project will also be discussed.
	Slides THXA01 [1.535 MB]

THPC043	Status of SESAME Project	booster, vacuum, controls, quadrupole	2999
	A. Nadji SESAME, Amman, Jordan
	This paper reports on the progress which has been made on the construction of the SESAME accelerator complex. The construction of the shielding wall has been finished on March 2011. According to plan, the preparation works and tenders of the conventional facilities have been launched such as the cooling system, electrical distribution systems, PSS system and so on. The commissioning of the Microtron at full energy and the installation of the booster are the next millstones to accomplish. The booster upgrade plan has started which consists of replacing all bending magnets vacuum chamber with new one, BPM Libera Electronics, new control system based on EPICS, new timing system, new electronics for tune measurement. The site acceptance test of the new power supplies of the booster with their tracking electronics is planned to take place in July 2011. The magnet system of the storage ring has been reviewed and the manufacturing tendering is foreseen before the end of 2011.

Paper

Title

Other Keywords

Page

MOPC032

Improvement of the RF System for the PEFP 100 MeV Proton Linac*

linac, LLRF, controls, proton

139

K.T. Seol, Y.-S. Cho, H.S. Kim, H.-J. Kwon, Y.-G. Song
KAERI, Daejon, Republic of Korea

Funding: This work is supported by the Ministry of Education, Science and Technology of the Korean Government.
The 100 MeV proton linear accelerator of the Proton Engineering Frontier Project (PEFP) has been developed and will be installed in Gyeong-ju site. The 20 MeV accelerator operated in Korea Atomic Energy Research Institute (KAERI) site will be also moved and reinstalled. The LLRF control systems for the 20 MeV accelerator were improved and have been operated within the stability of ±1% in RF amplitude and ±1 degree in RF phase. 7 sets of the extra LLRF control system will be installed with a RF reference system for the 100 MeV accelerator. Waveguide layout was also improved to install HPRF systems for the 100 MeV accelerator. Some of the HPRF components including klystrons, circulators, and RF windows are under purchase. The waveguide sections penetrating into the tunnel, which are fixed in a concrete floor with the bending structure for radiation shielding, were fabricated into a piece of waveguide to prevent the moisture and any foreign debris inside the concrete block. The details of the RF system improvement are presented.

MOPO041

Preliminary Testing of TPS Timing System

controls, gun, linac, booster

574

C.Y. Wu, Y.-T. Chang, J. Chen, Y.-S. Cheng, P.C. Chiu, K.T. Hsu, K.H. Hu, C.H. Kuo, C.-Y. Liao
NSRRC, Hsinchu, Taiwan

The timing system of Taiwan Photon Source (TPS) provides synchronization for electron gun, modulators of linac, pulse magnet power supplies, booster power supply ramp, bucket addressing of storage ring, diagnostic equipments, beamline gating signal for top-up injection. The timing system utilizes a central event generator to generate events and distribute them over optic fiber network, and decodes them at the event receivers. The system supports uplink functionality which will be used for the fast interlock system to distribute signals like beam dump and post-mortem trigger. The timing system has now been in operation for Linac of TPS. This paper presents prototype for the timing system of TPS.

MOPZ024

Muon Ionization Cooling Experiment: Controls and Monitoring

controls, emittance, monitoring, target

856

P.M. Hanlet
IIT, Chicago, Illinois, USA
C.N. Booth
Sheffield University, Sheffield, United Kingdom

Funding: NSF PHY0842798
The Muon Ionization Cooling Experiment (MICE) is a demonstration experiment to prove the viability of cooling a beam of muons for use in a Neutrino Factory and Muon Collider. The MICE cooling channel is a section of a modified Study II cooling channel which will provide a 10% reduction in beam emittance. In order to ensure a reliable measurement, we intend to measure the beam emittance before and after the cooling channel at the level of 1%, or an absolute measurement of 0.001. This renders MICE as a precision experiment which requires strict controls and monitoring of all experimental parameters in order to control systematic errors. The MICE Controls and Monitoring system is based on EPICS and integrates with the DAQ and Data monitoring systems. A description of this system, its implementation, and performance during recent muon beam data collection will be discussed.
For the MICE collaboration.

TUPC116

Beam Diagnostics Global Data Warehouse Implementation and Application at SSRF*

diagnostics, controls, feedback, monitoring

1287

Y.B. Leng, Z.C. Chen, Y.B. Yan, R.X. Yuan
SSRF, Shanghai, People's Republic of China

A fully functional beam diagnostics system has been developed at SSRF serving user operation and machine study since 2009. Global orbit disturbances, BPM failures and DCCT noise signal have been observed randomly. Without correct event trigger it is hard to capture real time data and analyze the cause of the above failures. A BI global data warehouse has been implemented as a solution to buffer online data and do correlation analyze at SSRF.

TUPC117

Embedded EPICS IOC Data Acquisition System for Beam Instability Research

betatron, feedback, wakefield, storage-ring

1290

N. Zhang, Y.B. Leng
SSRF, Shanghai, People's Republic of China

Funding: This research is supported by National Natural Science Fund(No.Y155131061).
To be a part of beam diagnostics system in SSRF 3.5 GeV electron storage ring, a high performance oscilloscope is introduced to build a bunch by bunch data acquisition and processing dedicated system, which is mainly used to observe individual bunch position in transverse plane and bunch charge. By analysis of Betatron oscillation amplitude distribution and corresponding filling pattern, we hope to find phenomenon about multi-bunch Wakefield effect[1] on beam Betatron oscillation for beam instability research. The system is configured as a scope IOC, and integrated into the EPICS based control system. Application of this system and some data analysis results are also discussed in this paper.

TUPC125

Test of the Front-end Electronics and Acquisition System for the LIPAC BPMs

pick-up, controls, linac, LLRF

1311

D. Belver, I. Arredondo, P. Echevarria, J. Feuchtwanger, H. Hassanzadegan, M. del Campo
ESS-Bilbao, Zamudio, Spain
F.J. Bermejo
Bilbao, Faculty of Science and Technology, Bilbao, Spain
J.M. Carmona, A. Guirao, A. Ibarra, L.M. Martinez Fresno, I. Podadera
CIEMAT, Madrid, Spain
V. Etxebarria, J. Jugo, J. Portilla
University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain
N. Garmendia, L. Muguira
ESS Bilbao, Bilbao, Spain

Funding: Work partially supported by Spanish Ministry of Science and Innovation under project AIC10-A-000441 and ENE2009-11230.
Non-interceptive Beam Position Monitors pickups (BPMs) will be installed along the beamlines of the IFMIF/EVEDA linear prototype accelerator (LIPAC) to measure the transverse beam position in the vacuum chamber in order to correct the dipolar and tilt errors. Depending on the location, the BPMs response must be optimized for a beam of 175 MHz bunch repetition, an energy range from 5 up to 9 MeV, a current between 0.1 and 125 mA and continuous and pulse operation. The requirements from beam dynamics for the BPMs are quite stringent, aiming for the position an accuracy below 100 μm and a resolution below 10 μm, and for the phase an accuracy below 2° and a resolution below 0.3°. To meet these specifications, the BPM electronics system developed by ESS-Bilbao has been adapted for its use with the BPMs of LIPAC. This electronics system is divided in an Analog Front-End unit, where the signals are conditioned and converted to baseband, and a Digital Unit to sample them and calculate the position and phase. The electronics system has been tested at CIEMAT with a wire test bench and a prototype BPM. In this contribution, the tests performed will be fully described and the results discussed.

TUPC145

Vibration and Beam Motion Monitoring in TLS

controls, monitoring, photon, brilliance

1365

Y.K. Chen, J. Chen, P.C. Chiu, K.T. Hsu, K.H. Hu, C.H. Kuo
NSRRC, Hsinchu, Taiwan

Due to asynchronous nature of various vibration and beam motion related subsystems, it is hard to analysis the correlation between them. Therefore, the synchronous distributed data acquisition system is designed to make an improvement for better analysis. For different circumstances, the system supports two data flow: one is display the real-time data which could be archived continuously and the other is waveform which could be acquired on demand or triggered by event with high sampling rate. In addition, the viewer will improve some useful features, such as trigger by customize signal or EPICS PV record, automatic screenshot and plot the multiple history events. The preliminary test results and implementation details will be summarized in this report.

TUPC161

Cavity Beam Position Monitor System for ATF2

cavity, dipole, quadrupole, extraction

1410

S.T. Boogert, R. Ainsworth, G.E. Boorman, S. Molloy
Royal Holloway, University of London, Surrey, United Kingdom
A.S. Aryshev, Y. Honda, N. Terunuma, J. Urakawa
KEK, Ibaraki, Japan
F.J. Cullinan, N.Y. Joshi, A. Lyapin
JAI, Egham, Surrey, United Kingdom
J.C. Frisch, D.J. McCormick, J. Nelson, T.J. Smith, G.R. White
SLAC, Menlo Park, California, USA
A. Heo, E.-S. Kim, Y.I. Kim
KNU, Deagu, Republic of Korea

The Accelerator Test Facility 2 (ATF2) in KEK, Japan, is a prototype scaled demonstrator system for the final focus required for a future high energy lepton linear collider. The ATF2 beam-line is instrumented with a total of 41 high resolution C and S band resonant cavity beam position monitors (BPM) with associated mixer electronics and digitizers. In addition 4 high resolution BPMs have been recently installed at the interaction point, we briefly describe the first operational experience of these cavities in the ATF2 beam-line. The current status of the overall BPM system is also described, with a focus on operational techniques and performance.

TUPS052

An FPGA Based Controller for the MICE Target

target, controls, injection, extraction

1647

P.J. Smith, C.N. Booth, P. Hodgson, E. Overton, M. Robinson
Sheffield University, Sheffield, United Kingdom
J. Leaver, K.R. Long
Imperial College of Science and Technology, Department of Physics, London, United Kingdom

Funding: UK Science and Technology Facilities Council
The MICE experiment uses a beam of low energy muons to test the feasibility of ionization cooling. This beam is derived parasitically from the ISIS accelerator at the Rutherford Appleton Laboratory. A target mechanism has been developed that rapidly inserts a small titanium target into the circulating proton beam immediately prior to extraction without unduly disturbing the primary ISIS beam. The original control electronics for the MICE target was based upon an 8-bit PIC. Although this system was fully functional it did not provide the necessary IO to permit full integration of the target electronics onto the MICE EPICS system. A three phase program was established to migrate both the target control and DAQ electronics from the original prototype onto a fully integrated FPGA system that is capable of interfacing with EPICS through a local PC. This paper discusses this upgrade program, the motivation behind it and the performance of the upgraded target controller.

WEPC034

High-level Application Programs for the TPS Commissioning and Operation at NSRRC

quadrupole, controls, storage-ring, target

2079

F.H. Tseng, H.-P. Chang, C.C. Chiang
NSRRC, Hsinchu, Taiwan

For the Taiwan Photon Source (TPS) commissioning and operation we have developed more MATLAB-based application programs and tested them on the Taiwan Light Source (TLS). These additional applications built with the MATLAB Middle Layer (MML) include beta function measurement, dispersion function measurement, chromaticity measurement, chromaticity correction, and tune control. In this paper, we will illustrate what algorithms we use in these applications and show the test results. Especially, in order to get the first beam in the TPS commissioning, we adopt the RESOLVE algorithm for the beam steering and it has been built successfully in UNIX-like systems such as Mac OSX and different Linux versions. It can provide us some exercises of error finding and correction before the TPS commissioning in 2013.

WEPC121

XML Constructs for Developing Dynamics Applications or Towards a Universal Representation of Particle Accelerators in XML

controls, extraction, lattice, diagnostics

2295

J.T.M. Chrin, R.A. Krempaska, H. Lutz, G. Prekas
PSI, Villigen, Switzerland
T.A. Pelaia
ORNL, Oak Ridge, Tennessee, USA

A recognized practice within the development of high-level beam dynamics applications is to separate data parameters destined for the configuration of the application from the programming language domain. The contemporary approach is to generate input files that provide the configuration parameters in a structured data format specified by the Extensible Markup Language (XML), enhancing flexibility and simplifying code maintenance. Furthermore, a careful choice of syntactic constructs, i.e. structured elements, attributes, etc., that map well to the various accelerator components, provides a basis for portability of applications. This has been exemplified by the XAL software package which initiated an XML description of the Standard Machine Format (SMF) accelerator object model. We have since adopted XML-SMF to provide an XML representation of both the Swiss Light Source (SLS) and the SwissFEL Injector Test Facility. We demonstrate how such XML constructs allow us to deploy the same orbit display application at both facilities. Our experience leads us to advocate a Universal Machine Format (UMF) that encompasses an all-inclusive XML schema for the management of accelerator information.

Poster WEPC121 [0.313 MB]

WEPC146

Design and Implementation of Distributed Control System for PEFP 100-MeV Proton Accelerator*

controls, proton, monitoring, vacuum

2334

Y.-G. Song, Y.-S. Cho, J.-H. Jang, H.-J. Kwon
KAERI, Daejon, Republic of Korea

Funding: This work is supported by the Ministry of Education, Science and Technology of the Korean Government.
The Proton Engineering Frontier Project (PEFP) has been developing the control system for 100-MeV proton accelerator. The PEFP control system should be designed to fit control conditions based on networked and distributed real-time system composed of several sub-systems such as machine control, diagnostic control, timing, and interlock. In order to implement the distributed control system, the Experimental Physics and Industrial Control System (EPICS) has been chosen as the middleware of PEFP control system. The EPICS software provides a distributed architecture that supports a wide range of solution such as independent programming tool, operator interface tool, database and web-based archiving tools. In this paper, we will present the details of the design and implementation issues of the PEFP control system.

WEPC152

Android Based Mobile Monitoring System for EPICS Networks: Vacuum System Application*

controls, monitoring, vacuum, ion-source

2337

I. Badillo, I. Arredondo, M. Eguiraun, J. Feuchtwanger, G. Harper
ESS-Bilbao, Zamudio, Spain
J. Jugo
University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain

Funding: The present work is supported by the Basque Government and Spanish Ministry of Science and Innovation.
When cabling is not really needed for performance reasons, wireless monitoring is a good choice for large scientific facilities like particle accelerators, due to the quick implementation. There are several wireless flavors: ZigBee, WiFi etc. depending on requirements of specific application. In this work, a wireless monitoring system for EPICS based on an Android device is presented. The task is to monitor the vacuum control system of ISHN project at ESSBilbao, where control system variables are acquired over the network and published in a mobile device. This allows the operator to check process variables everywhere the signal spreads. In this approach, a Python based server is continuously getting EPICS variables via CA protocol and sending them through a WiFi network using ICE middleware, a toolkit oriented to develop distributed applications. Finally, the mobile device reads and shows the data to the operator. The security of the communication is ensured by a limited WiFi signal spread, following the same idea as in NFC for larger distances. With this approach, local monitoring and control applications are easily implemented, useful in starting up and maintenance stages.

WEPC154

EPICS HyperArchiver: initial tests at ESSBilbao

controls, insertion, ion-source, ion

2343

M. del Campo
ESS-Bilbao, Zamudio, Spain
M.G. Giacchini, L.G. Giovannini
INFN/LNL, Legnaro (PD), Italy
J. Jugo
University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain

Funding: The present work is supported by the Basque Government and Spanish Ministry of Science and Innovation.
The aim of this work is to present the results obtained after different tests performed regarding data storage for an Ion Source, by means of an EPICS control system at ESS-Bilbao (Spain). As a first approach, data was recorded on a MySQL database, using a traditional EPICS RDB Channel Archiver instance, maintained at ORNL SNS (USA). Nevertheless, initial results shown the need of an evolution towards a high performance scalable database. Therefore, current tests are focused on the customization and usage of a HyperArchiver instance, developed at INFN/LNL (Italy), which uses Hypertable as its main database. Hypertable is a distributed, high performance non relational database, released under GNU licence and focused on data-intensive tasks. At ESS Bilbao, a slightly modified version of the HyperArchiver was used, due to the necessity of an improvement on the management of array PVs. Regarding data retrieval and visualization, a python GUI developed at ESS-Bilbao was used, in opposition to the traditional CSS data browser, trying to make data retrieval as fast and simple as possible. Hypertable is presented as a high performance alternative to MySQL for any EPICS control system.

WEPC155

Fast Acquisition Multipurpose Controller with EPICS Integration and Data Logging

controls, status, LLRF

2346

I. Arredondo, D. Belver, P. Echevarria, H. Hassanzadegan, M. del Campo
ESS-Bilbao, Zamudio, Spain
V. Etxebarria, J. Jugo
University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain
N. Garmendia, L. Muguira
ESS Bilbao, Bilbao, Spain

Funding: Funding Agency The present work is supported by the Basque Government and Spanish Ministry of Science and Innovation.
This work introduces a fast acquisition multipurpose controller (MC), based on a XML configuration with EPICS integration and Data Logging. The main hardware is an FPGA based board, connected to a Host PC. This Host computer acts as the local controller and implements an IOC, integrating the device into an EPICS network. Java has been used as the main programming language in order to make the device fit the desired application. The whole process includes the use of different technologies: JNA to handle FPGA API, JavaIOC to integrate EPICS and XML w3c DOM classes to configure each particular application. Furthermore, a MySQL database is used for data storage, together with the deployment of an EPICS ArchiveEngine instance, offering the possibility to record data from both, the ArchiveEngine and a specifically designed Java library. The developed Java specific tools include different methods: FPGA management, creation and use of EPICS server, mathematical data processing, Archive Engine's MySQL database connection and creation/initialization of the application structure by means of an XML file. This MC has been used to implement a BPM and an LLRF applications for ESS-Bilbao.

WEPC156

Virtual Power Supply Control Environment for the TPS Project

power-supply, controls, quadrupole, storage-ring

2349

Y.-S. Cheng, Y.-T. Chang, J. Chen, P.C. Chiu, K.T. Hsu, K.H. Hu, C.H. Kuo, C.-Y. Liao, C.Y. Wu
NSRRC, Hsinchu, Taiwan

The Taiwan Photon Source (TPS) is the latest generation of 3 GeV synchrotron light source which has been under construction since 2010. The control system infrastructure of TPS project is based upon the EPICS framework. In order to develop the control applications before power supplies of magnets delivered, it is necessary to set up the virtual control environment to develop high level application programs for the power supplies of magnets in advance. The high level application programs include operation process, degauss process and etc. for power supplies of magnet. The soft-IOCs (Input Output Controller) and various database records are needed to be built to simulate the power supply control environment. In addition, the operation interfaces of power supply will be designed and integrated according to location properties. The efforts will be described at this report.

WEPC158

The EMMA Accelerator, A Diagnostic Systems Overview

injection, extraction, diagnostics, pick-up

2355

R.J. Smith, M. Dufau, C. Hill, J.K. Jones, A. Kalinin, L. Ma, P.A. McIntosh, B.D. Muratori, B.J.A. Shepherd
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
J.S. Berg
BNL, Upton, Long Island, New York, USA
N. Bliss, G. Cox, A. Gallagher, A. Oates
STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom
R.G. Borrell
WareWorks Ltd, Manchester, United Kingdom
J.L. Crisp
FRIB, East Lansing, Michigan, USA
K.M. Hock, D.J. Holder
Cockcroft Institute, Warrington, Cheshire, United Kingdom
M.G. Ibison, I. Kirkman
The University of Liverpool, Liverpool, United Kingdom
D.J. Kelliher, S. Machida
STFC/RAL/ASTeC, Chilton, Didcot, Oxon, United Kingdom

The ‘EMMA’ Non-Scaling Fixed Field Alternating Gradient (NS-FFAG) international project is currently being commissioned at Daresbury Laboratory, UK. This accelerator has been equipped with a number of diagnostic systems to facilitate this. These systems include a novel time-domain-multiplexing BPM system, moveable screen systems, a time-of-flight instrument, Faraday cups, and injection/extraction tomography sections to analyse the single bunch beams. An upgrade still to implement includes the installation of a fast wall current monitor. This paper gives an overview of these systems and shows some data and results that have contributed to the successful demonstration of a serpentine acceleration by this novel accelerator.

THXA01

Recent Trends in Accelerator Control Systems

controls, LLRF, feedback, coupling

2844

I. Verstovšek, F. Amand, M. Pleško, K. Žagar
Cosylab, Ljubljana, Slovenia

The talk will discuss the approaches of different accelerators, such as FAIR, ESS, MedAustron, XFEL, etc. An overview of different approaches will be given with an emphasis of the recent spectrum of various realizations of accelerator control systems. The talk will not be limited to open source and off-the-shelf software frameworks only but will touch all trends in modern accelerators, including recent trends in hardware. The role of the control system will be highlighted as a common integration framework for various applications, with an emphasis on its increased complexity and scale, and the need for improved reliability and an appropriate service. How control systems can help support the requirements-shaping process early in the project will also be discussed.

Slides THXA01 [1.535 MB]

THPC043

Status of SESAME Project

booster, vacuum, controls, quadrupole

2999

A. Nadji
SESAME, Amman, Jordan

This paper reports on the progress which has been made on the construction of the SESAME accelerator complex. The construction of the shielding wall has been finished on March 2011. According to plan, the preparation works and tenders of the conventional facilities have been launched such as the cooling system, electrical distribution systems, PSS system and so on. The commissioning of the Microtron at full energy and the installation of the booster are the next millstones to accomplish. The booster upgrade plan has started which consists of replacing all bending magnets vacuum chamber with new one, BPM Libera Electronics, new control system based on EPICS, new timing system, new electronics for tune measurement. The site acceptance test of the new power supplies of the booster with their tracking electronics is planned to take place in July 2011. The magnet system of the storage ring has been reviewed and the manufacturing tendering is foreseen before the end of 2011.