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linac

Paper Title Other Keywords Page
MOAA01 Accelerators: The Final Frontier? collider, factory, electron, proton 1
 
  • K. J. Peach
    JAI, Oxford
  Particle accelerators at the high-energy frontier are essential to the exploration of the deep structure of the material universe around us. The new technologies required to achieve the highest energies also find application in other fields of science. The lecture will discuss the scientic motivation for the development of these new accelerator technologies and the applications that might result.  
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TOAA03 Status of the X-Ray FEL Control System at SPring-8 controls, undulator, klystron, electron 50
 
  • T. Hirono, N. Hosoda, M. Ishii, T. Masuda, T. Matsushita, T. Ohata, M. T. Takeuchi, R. Tanaka, A. Yamashita
    JASRI/SPring-8, Hyogo-ken
  • M. K. Kitamura, H. Maesaka, Y. Otake, K. Shirasawa
    RIKEN Spring-8 Harima, Hyogo
  • T. Fukui
    RIKEN, Hyogo
  The X-ray FEL project at SPring-8 aims to build an X-ray lasing facility, which will generate brilliant coherent X-ray beams with wavelength of below 0.1nm. A combination of short-period in-vacuum undulators and an 8GeV high-gradient C-band linear accelerator makes the machine compact enough to fit into the SPring-8 1km-long beamline space. The machine commissioning will be started by March 2011. We designed the control system for the new machine based on the present SCSS test accelerator, which employs the MADOCA framework. The control system is based on the so-called “standard model” and composed of Linux-based operator consoles, database servers, Gigabit Ethernet, VMEbus system, and so on. The control system, also, has a synchronized data-taking scheme to achieve beam-based optics tuning. Most of the device control part is installed in water-cooled 19in. racks together with RF devices for temperature control, which guarantees stable RF phase control. This paper gives an overview of the project and describes the design of the control system. In addition, we briefly report the status of the SCSS test accelerator operated as a VUV-FEL user facility.  
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TOAA05 Implementation, Commissioning and Current Status of the Diamond Light Source Control System controls, photon, diagnostics, simulation 56
 
  • M. G. Abbott, K. A.R. Baker, T. M. Cobb, P. N. Denison, P. Gibbons, I. J. Gillingham, A. Gonias, P. Hamadyk, S. C. Lay, P. J. Leicester, M. R. Pearson, U. K. Pederson, N. P. Rees, A. J. Rose, J. Rowland, E. L. Shepherd, S. J. Singleton, I. Uzun, M. T. Heron
    Diamond, Oxfordshire
  • A. J. Foster
    OSL, Cambridge
  • S. Hunt
    AHB, Meisterschwanden
  • P. H. Owens
    STFC/DL, Daresbury, Warrington, Cheshire
  Starting with the Linac in 2005, the commissioning of the Diamond Light Source accelerators and photon beamlines, together with their related control systems, progressed to an aggressive program such that as of early in 2007, the facility was available for first users with a suite of beamlines and experiment stations. The implementation and commissioning of the control system to meet the overall project objectives are presented. The current status of the control system, including ongoing developments for electron-beam orbit stability and future photon beamline requirements, are also described.  
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TOAB02 Current Status of the Control System for J-PARC Accelerator Complex controls, beam-losses, proton, simulation 62
 
  • M. Adachi, S. F. Fukuta, S. H. Hatakeyama, M. T. Tanaka
    MELCO SC, Tsukuba
  • A. Akiyama, N. Kamikubota, T. Katoh, K. Kudo, T. Matsumoto, H. Nakagawa, J.-I. Odagiri, Y. Takeuchi, N. Yamamoto
    KEK, Ibaraki
  • H. Ikeda, T. Suzuki, N. T. Tsuchiya
    JAEA, Ibaraki-ken
  • Y. I. Itoh, Y. Kato, M. Kawase, H. Sakaki, H. Sako, G. B. Shen, H. Takahashi
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
  • S. Motohashi, M. Takagi, S. Y. Yoshida
    Kanto Information Service (KIS), Accelerator Group, Ibaraki
  • S. S. Sawa
    Total Support Systems Corporation, Tokai-mura, Naka-gun, Ibaraki
  • M. S. Sugimoto
    Mitsubishi Electric Control Software Corp, Kobe
  • H. Yoshikawa
    KEK/JAEA, Ibaraki-Ken
  J-PARC accelerator complex consists of a proton linac (LINAC), > a Rapid Cycle Synchrotron (RCS), and a Main Ring synchrotron (MR). The commissioning of LINAC already started in November 2006, while the commissioning of Main Ring synchrotron (MR) is scheduled in May 2008. Most of the machine components of MR have been installed in the tunnel. Introduction of electronic modules and wiring will be made by the end of 2007. For the control of MR, the J-PARC accelerator control network was extended to include the MR related parts in March 2007. IOC computers (VME-bus computers) for MR will be introduced in 2007. In addition, more server computers for application development will be also introduced in 2007. This paper reports the status of development for the J-PARC MR control system.  
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TPPA06 EPICS-Based Control System for Beam Diagnostics of J-PARC LINAC controls, diagnostics, beam-losses, rfq 96
 
  • Y. Kato, H. Sako, G. B. Shen
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
  • S. Sato
    JAEA/LINAC, Ibaraki-ken
  A commercial measurement instrumentation (WE7000) is used at J-PARC LINAC, to measure beam current from SCT (Slow Current Transformer), beam energy from FCT (Fast Current Transformer), beam position from BPM (Beam Position Monitor), beam size from WSM (Wire Scanner Monitor), or beam loss from BLM (Beam Loss Monitor). The WE7000 is a module-type measurement station, and supports network-based data transmission and communication. A control system has been developed under EPICS framework for the beam diagnostic system to control all WE stations. A waveform signal from a SCT, a FCT, a BPM, a WSM, or a BLM is digitized in a WE7000 station and sent to an EPICS IOC. All signal voltages are calculated inside IOC from a raw digital count. Some physical variables are calculated from the signal voltages including beam current, beam position, and beam phase and beam energy. An EPCIS device driver was reutilized for the data acquisition. The GUI applications for data displays have been developed by using EPICS extensions tools. The current status is reported in this paper about the beam diagnostic system control.  
 
TPPA13 High-level Application Framework for LCLS controls, SNS, lattice, optics 114
 
  • S. Chevtsov, D. Fairley, C. Larrieu, J. Rock, D. Rogind, G. R. White, S. Zelazny, P. Chu
    SLAC, Menlo Park, California
  A framework for high-level accelerator application software has been planned for the Linac Coherent Light Source (LCLS). The framework is based on plug-in technology developed by the Eclipse open-source project. Many existing functionalities provided by Eclipse are available to high-level applications written within this framework. The framework contains static data storage, configuration, and dynamic data connectivity, as well as modeling through XAL and MAD. Additionally, because the framework is Eclipse-based, it is highly compatible with any other Eclipse plug-ins, such as Control System Studio. The entire infrastructure of the software framework will be presented. Applications and plug-ins based on the framework are also presented.  
 
TPPA14 Scope-Embedded IOC Development in SSRF booster, controls, storage-ring, pick-up 117
 
  • Y. Z. Chen, Z. C. Chen, D. K. Liu, W. M. Zhou, Y. B. Leng
    SINAP, Shanghai
  The dozen of wide-band beam diagnostics sensors such as integration current transformer, faraday cup, and wall current monitors were used in SSRF(Shanghai Synchrtron Radiation Facility) Linac and transport line to measure bunch shape and charge. Few hundreds MHz bandwidth required very high speed digitizer like digital sampling scope. On the other hand SSRF control system was built on EPICS platform. So Windows PC based Tektronics scope, which equipped with TekVISA interface, Shared Memory IOCcore EPICS interface, and Labview application was chosen to do this data acquisition. The details of software design and the performance evaluation results for TDS7104 and DPO7054 will be described in this paper.  
 
TPPA18 Application of a Virtualization Technology to VME Controllers controls, storage-ring, vacuum, diagnostics 123
 
  • T. Fukui
    RIKEN Spring-8, Hyogo
  • T. Ohata, T. Masuda
    JASRI/SPring-8, Hyogo-ken
  The SPring-8 control framework MADOCA employs client-server architecture based on Sun RPC (Remote Procedure Call) for device control. An RPC server process named Equipment Manager (EM) is running on each VME controller operated by Solaris. It executes control commands from client applications one by one. As a simple approach to parallel (exactly concurrent) execution of the EM process, we apply the virtualization technology of Solaris Containers to VME controllers. Solaris Containers virtualizes operating system environment within the OS level. It consumes little disk space (~30 MB) to add a new virtual host. All the virtual hosts can access devices on the VME bus through a real host. We don’t need to modify the MADOCA framework and device drivers at all to run the EM process on the virtual host. Therefore, we can easily apply the virtualization technology to the VME controllers which don’t have enough disk space. The technology allows us not only to consolidate but also to logically partition the deployed VME controller. We will report some applications of Solaris Containers to the VME controllers, in particular from the viewpoint of the system performance and management.  
 
TPPA28 PLC-Based Beam Charge Interlock System for Radiation Safety in the KEKB Injector Linac controls, injection, storage-ring, radiation 149
 
  • K. Furukawa, M. Satoh, T. Suwada, E. Kadokura
    KEK, Ibaraki
  A new PLC-based beam-charge interlock system is under development for radiation safety at the KEKB injector linac. This system restricts a prescribed amount of integrated beam charges passing through at several locations along the linac for machine protection, and it also monitors the amount of integrated beam charges injecting to four different storage rings (KEKB e+ & e- storage rings, PF, PF-AR) at the linac beam switchyard. The beam charges delivered from an electron gun are measured with the PLC-based beam-charge interlock system. This system comprises wall-current monitors, beam-charge integration circuits, and a PLC-based control system. This system generates and sends beam abort signals directly to another radiation safety control system with hard-wire cables when the amount of the integrated beam charges is beyond the prescribed threshold level. In this report we describe the new design of the PLC-based beam-charge interlock system, and especially several software developments and performances implemented on the PLC are described.  
 
TPPA30 Channel Access Clients on the Microsoft Windows Platform controls, synchrotron, synchrotron-radiation, radiation 155
 
  • B. G. Martlew
    STFC/DL/SRD, Daresbury, Warrington, Cheshire
  • A. Oates, G. Cox
    STFC/DL, Daresbury, Warrington, Cheshire
  The control system for the Energy Recovery Linac Prototype (ERLP) under construction at Daresbury uses EPICS and vxWorks on VME64x. The client software in use during the commissioning of the accelerator is based on PC consoles running Red Hat 9. Synoptic displays and engineering panels are created using the Extensible Display Manager (EDM) and other standard EPICS extension software is used for archival and alarm handling. The Synchrotron Radiation Source (SRS) control system uses a bespoke control system with client software on PC consoles running Microsoft Windows. We would like to employ a similar approach for the operational client software on ERLP with Channel Access clients running on Microsoft Windows PC consoles. However, the Microsoft Visual Studio development tools and ActiveX/COM technologies used for creating client side software on the SRS control system are now outdated and have been superseded by the .NET framework and associated developer tools. This paper discusses the different options currently available for developing Channel Access clients on the Microsoft Windows platform, along with progress in creating Channel Access clients for the .NET framework.  
 
TPPA31 Redundant EPICS IOC in PC-based Unix-like Environment controls, monitoring, cryogenics, radiation 158
 
  • M. R. Clausen, G. Liu, B. Schoeneburg
    DESY, Hamburg
  • K. Furukawa
    KEK, Ibaraki
  • A. Kazakov
    GUAS/AS, Ibaraki
  Redundant EPICS IOC is being actively developed at DESY in order to achieve high availability. Current development focuses on VME vxWorks environment for cryogenics controls. However, many facilities use PC-architecture and unix-like systems as Linux and FreeBSD. These facilities require high availability and redundancy as well. So this paper will describe the implementation of EPICS redundant IOC in PC-based environment with Linux and FreeBSD. This work will be done by porting Redundancy Monitor Task (RMT) and Continuous Control Executive (CCE). RMT is responsible to make a decision when to fail-over; it is rather independent and may be used in a wide range of applications. In the future it can be employed in caGateway to add redundancy. CCE is aimed to synchronize two RSRV-based IOC servers.  
 
TPPB07 First Steps Towards the New Spiral2 Project Control System controls, ion, rfq, heavy-ion 175
 
  • S. A. Avner, P. G. Graehling, J. H. Hosselet, C. M. Maazouzi, C. O. Olivetto
    IPHC, Strasbourg Cedex 2
  • D. Bogard, F. Gougnaud, J.-F. Gournay, Y. Lussignol, P. Mattei
    CEA, Gif-sur-Yvette
  • S. C. Cuzon, D. T. Touchard, E. Lecorche
    GANIL, Caen
  The Spiral2 project at Ganil aims to produce rare ion beams using a uranium carbide target fission process. The accelerator consists of an RFQ followed by a superconducting cavity linac and is designed to provide high-intensity primary beams (deuterons, protons, or heavy ions). The accelerator should be commissioned by the end of 2011, and the first exotic beams are planned for one year later. The control system will be a result of collaboration between several institutes, among which is the Saclay Dapnia division, which has good experience and knowledge with EPICS. Because of its widely used functionalities, EPICS has been chosen as the basic framework for the accelerator control, and people from the other laboratories belonging to the collaboration are progressively acquiring their first experiences with it. The paper first explains the organization of the collaboration, then it describes the basic hardware and software choices for the project. Some preliminary implementations are therefore given. As the project is still in its beginning phase, the paper ends by listing some questions not yet resolved for the control system definition and remaining open to discussion.  
 
TPPB08 Present Status of SSRF Control System controls, booster, power-supply, vacuum 178
 
  • L. R. Shen, D. K. Liu
    SINAP, Shanghai
  Shanghai Synchrotron Radiation Facility is a third-generation light source with 150MeV LINAC, 3.5Gev booster, and storage ring. The SSRF control system is a hierarchical standard accelerator control system based on EPICS. The VME 64X system and PLCs are used for various low-level device controls and interlock systems. Serial device servers connect serial devices and instrumentation to the Ethernet. All control subsystems are under construction. The hardware and software system development environment has been set up. Most of the subsystem models, such as the digital power supply control and event timing systems, have been set up and are being tested with devices on schedule. The high-level physical application environment has been set up and undergone online testing of device control using MatLab with Accelerator Toolbox and a middle layer. A set of tools (e.g., configuration tools and an alarm handler) has been set up for the center's database. An enhanced distributed archive engine has been created to store data using native XML data type with XML schema for data storage. Various testing results of the control systems for SSRF equipment will be described in this paper.  
 
TPPB11 Status of Control System for RIKEN RI-Beam Factory controls, cyclotron, power-supply, ion 187
 
  • M. K. Fujimaki, M. Kase, M. Komiyama
    RIKEN/RARF/CC, Saitama
  • A. Uchiyama
    SHI Accelerator Service ltd., Tokyo
  The control system of the RIKEN RI-Beam Factory (RIBF) is based on the Experimental Physics and Industrial Control System (EPICS). To control magnet power supplies of cyclotrons and their beam transport lines, we are using VME and CAMAC as I/O Controllers (IOCs) depending on a kind of their interface boards. To control beam-diagnostic equipment and vacuum systems, small single-board computers mounted with Linux are used as IOCs. Other devices of cyclotrons like RF are controlled by PCs, which are independent systems from EPICS. These details will be reported. Furthermore, we will report about the RIBF beam interlock system using Melsec PLCs. We started beam commissioning of RIBF in July 2006 and succeeded in extracting uranium beam from the Superconducting Ring Cyclotron (SRC), which is the last of the multi-stage accelerators of the RIBF, on March 23, 2007.  
 
TPPB14 Status of the ALBA Control System controls, vacuum, synchrotron, diagnostics 193
 
  • D. Fernandez-Carreiras
    ALBA, Bellaterra (Cerdanyola del Vallès)
  This paper describes the progress in the design of the control system for the machine and beamlines. Solutions for interfacing devices, networking, interlocks, diagnostics, etc., are presented. Most call for tenders for the machine are placed, and hardware and software choices have been adopted. Alba uses Tango as the toolkit for building the control system. Device servers are mostly written in C++ and Python. Clients are mostly Java (ATK) and Python (+Qt). Different technologies have been chosen for the different subsystems, i.e., PLCs and distributed I/O for the Equipment Protection System, safety PLCs for the Personnel Safety System, event-driven timing system, Ethernet for the power supplies, etc. The actual status of both hardware and software is given, and the plans for the future are presented.  
 
TPPB18 Present Status of VEPP-5 Control System controls, injection, positron, damping 199
 
  • A. Antonov, R. E. Kuskov, D. Bolkhovityanov
    BINP SB RAS, Novosibirsk
  As VEPP-5 moves to commissioning, its control system—CX—becomes more mature. CX is a distributed, networked control system based on a 3-layer "standard model." It has been used for VEPP-5 control since 2000; most hardware is CAMAC and CAN-bus. Currently most control programs have switched to modular plugin-based architecture, which significantly eases development of applications and enhances the whole control system integration. Large-data-size control hardware (such as digital oscilloscopes and CCD-cameras) is fully supported by CX now. E-logbook is currently being deployed, both as a web application and with direct support in control programs. GIS technology is being introduced to the control system, which opens many interesting possibilities.  
 
TPPB20 SSRF Beam Instrumentations System booster, instrumentation, storage-ring, pick-up 205
 
  • J. Chen, Y. Z. Chen, Z. C. Chen, D. K. Liu, K. R. Ye, C. X. Yin, J. Yu, L. Y. Yu, R. Yuan, G. B. Zhao, W. M. Zhou, Y. Zou, Y. B. Leng
    SINAP, Shanghai
  SSRF is equipped with various beam instrumentations, in which the Linac part has been working well since the start of the commissioning this year, and the booster and storage ring parts are still under implementation and commissioning. The commercial products were adopted to build this system as much as possible. The all-in-one electron beam position monitor processor, Libera, was used for whole facility to provide single-pass, first-turn, turn-by-turn, COD, and fast application beam position data. The Bergoz NPCT175 parametric current transformers were used for DC current measurement in the booster and storage ring. The various optical beam diagnostic systems, such as synchrotron radiation interferometers for precise beam-size measurement, the fast gated camera, and the bunch length monitor will be equipped in the dedicated diagnostics beam line. Data acquisition for beam instrumentation system should be a part of control system, developed on an EPICS platform. There are three kinds of Input Output Controllers (IOCs) used in diagnostics: VxWorks-based VME IOCs, Linux-based Libera IOCs, and Windows-based PC IOCs.  
 
TPPB27 The New Control System for the Future Low-Emittance Light Source PETRA 3 at DESY: Sprinting to the Finish controls, booster, positron, synchrotron 217
 
  • R. Bacher
    DESY, Hamburg
  At DESY the existing high-energy physics booster synchrotron PETRA 2 will be transformed into a third-generation light source (PETRA 3). In addition, the technical systems and components of the pre-accelerators LINAC 2 and DESY 2 will be improved. Within the scope of this project, the control system and the front-end electronics will be upgraded. Besides a report on the current project's status, the paper emphasizes the basic conceptual ideas and discusses their implications and how they lead to novel features and development tools.  
 
TPPB38 Status of the ERLP Control System controls, cathode, laser, vacuum 244
 
  • G. Cox, A. Oates
    STFC/DL, Daresbury, Warrington, Cheshire
  • S. V. Davis, A. J. Duggan, A. Quigley, R. V. Rotheroe, B. G. Martlew
    STFC/DL/SRD, Daresbury, Warrington, Cheshire
  The Energy Recovery Linac Prototype (ERLP) is a 35 Mev superconducting linac currently being commissioned at Daresbury Laboratory. Its purpose is to demonstrate the technology necessary to design and build a 600 Mev energy recovery linac (4GLS), which, together with a suite of XUV, VUV, and IR FELs, can be used to undertake pump-probe experiments to investigate dynamic systems. The ERLP control system is based on EPICS, VME64x hardware, and the vxWorks operating system. Status control and interlock protection are handled by a Daresbury-designed CANbus system that has been tightly integrated into EPICS. Construction and commissioning of ERLP have taken place in parallel, and this introduced a number of problems in the planning and implementation of the control system. This paper describes the ERLP control system and disusses the successes and difficulties encountered during the early phases of commissioning. Plans are already in place to extend the control system to cover EMMA, a novel, non-scaling, fixed-field alternating gradient (FFAG) accelerator that will be added to ERLP in 2008/9.  
 
TPPB39 Experiences with an Industrial Control System: Traceability of Specifications, Commissioning Support and Conclusions from the HICAT Project controls, ion, diagnostics, ion-source 247
 
  • R. Baer, M. Schwickert, U. Weinrich, T. Fleck
    GSI, Darmstadt
  While the accelerator for HICAT was designed by GSI, most components and systems were supplied by industrial partners. Despite thorough and detailed specifications for the control system, the concept allowed a rather high degree of freedom for the industrial partner regarding the implementation. The challenge of this combination established a good understanding of the necessary functionalities by our industrial partner. First, we describe the process of implementation starting with the specifications made, sum up the tracing of the development, and show how we ensured proper functionality ab inito and necessary steps since then. Second, we describe problems ranging from software bugs to demands regarding acceptance tests for other components and state how we managed to solve these problems with our industrial partner on a short timescale. Last, we show what can be learned from our experiences. In particular we discuss where it is more efficient to describe all necessary physical dependencies to the industrial partner instead of defining a proper interface where the programming can be done by accelerator experts and concentrate on areas that led to problems with the time schedule.  
 
TPPB42 The Selection, Development and Application of PLC Solutions for the Diamond Light Source controls, vacuum, storage-ring, synchrotron 256
 
  • P. H. Amos, P. Hamadyk, M. T. Heron, H. S. Shiers, S. C. Lay
    Diamond, Oxfordshire
  Diamond Light Source set out to address a wide range of control system requirements, from process control to interlocking with a minimum number of PLC types. This resulted in standardization of PLCs from just two manufacturers. Siemens was chosen for high-end process control and Omron for a variety of other applications, including interlocking and protection. These were then applied to a large number of applications, which have been addressed wherever possible using standard solutions. The details of this approach, and solutions managed through it, including procurement of turnkey systems by industry, and how future obsolescence is being addressed are all described.  
 
TOPB04 Control System of the KEKB Accelerator Complex controls, injection, positron, factory 268
 
  • A. Akiyama, N. Kamikubota, T. T. Nakamura, J.-I. Odagiri, M. Satoh, T. Suwada, N. Yamamoto, K. Furukawa
    KEK, Ibaraki
  The KEKB asymmetric electron-positron collider complex consists of 8-GeV Linac, high-energy and low-energy rings. Some of the resources were inherited from the previous TRISTAN project, and also they are shared with Photon Factory and PF-AR light sources. In order to realize the long lifespan of the system de-facto and international standard technologies were employed since the early stage, which have been efficiently operated. Several gateway methods were implemented to integrate heterogeneous sub-systems, which are gradually converted into EPICS. Scripting languages are employed for higher-level applications. The ever-evolving control system has enabled flexible and reliable beam operations at KEKB throughout the long period.  
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WOAA05 Stepper Motor Control, PLC vs VME controls, feedback, SNS, site 285
 
  • P. A. Gurd, W. H. Strong
    ORNL, Oak Ridge, Tennessee
  Traditionally, EPICS-based accelerator control systems have used VME-based motion control modules to interface with stepper motors. For systems that include some Programmable Logic Controllers (PLCs), there is an option for using PLC-based stepper motor interface modules. As with all control system choices, there are trade-offs. This paper will delineate some of the pros and cons of both methods of interfacing with stepper motors.  
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WOAB01 Operational Tools at the Stanford Linear Accelerator Center controls, lattice, diagnostics, feedback 288
 
  • S. Chevtsov, P. Chu, D. Fairley, C. Larrieu, D. Rogind, H. Shoaee, M. Woodley, S. Zelazny, G. R. White
    SLAC, Menlo Park, California
  The operational tools at SLAC have been in continuous development for 20 years. These include a highly developed orbit correction package, an automatic bump maker, orbit fitting, lattice diagnostics, beta-matching and phase advance calculator, a macro recording facility, "Correlation Plots," which is a facility for conducting small ad-hoc experiments, plus a number of others. All of these use a global online modeling database system, and they are all integrated into a single interactive application program, so they interoperate seamlessly. In this talk I'll review these tools, and contrast them with systems we have recently developed which focus on support for accelerator physics conducted directly from numerical analysis packages such as Matlab, or from physicists' own small specialized programs. Lastly, our plans to rewrite all of these operational tools using modern software tools and infrastructure, and how we bridge old systems to new, will be presented.  
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WOAB04 Web-Based Electronic Operation Log System – Zlog System insertion, controls, background, vacuum 299
 
  • K. Furukawa, T. T. Nakamura, T. Obina, M. Satoh, N. Yamamoto
    KEK, Ibaraki
  • T. Nakamura, K. Yoshii
    MELCO SC, Tsukuba
  A Zope-based electronic operation logging system, named Zlog system, has been used since January 2004 at the KEKB and PF-AR accelerator facilities at KEK. Zope* is a Web content management system, which is based on several open source software components like Python and Postgresql. It enabled us to develop our Zlog in a short period, because the Zope system includes a development framework for Web application server. Zlog was introduced also to J-PARC/KEK-JAEA and RIBF/RIKEN, based on the experiences at KEKB and PF-AR. Zlog was proved to be quite portable even under different computer architectures. Zlog at KEKB accumulates about 1.5 million event entries so far, and images taken during the operation can be stored and viewed as well with entries. In this paper, we describe the present status and component details of the Zlog system.

* http://www.zope.org/

 
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WPPA05 The LANSCE Timing System Upgrade controls, diagnostics, ion, synchrotron 325
 
  • E. Bjorklund
    LANL, Los Alamos, New Mexico
  As part of a planned upgrade project for the Los Alamos Neutron Science Center (LANSCE) accelerator, we are considering replacing our current timing system, which distributes each timing signal on its own dedicated wire, with a more modern event-driven system. This paradigm shift in how timing signals are generated and distributed presents several challenges that must be overcome if we are to preserve our current operational capabilities. This paper will discuss some of the problems and possible solutions involved with migrating to an event system. It will also discuss some recent enhancements to theμResearch, Finland (MRF) event system that will help us accomplish our goal.  
 
WPPA07 The Control System of the Harmonic Double Sided Microtron at MAMI controls, microtron, diagnostics, power-supply 331
 
  • M. Dehn, H. J. Kreidel
    IKP, Mainz
  The MAMI electron accelerator cascade of three Racetrack Microtrons (RTMs) has been upgraded by a 4th stage, a Harmonic Double Sided Microtron (HDSM), raising the output energy from 0.855GeV to 1.5GeV. The control system for this worldwide unique machine has been built by extending and updating the well proven system of the three RTMs described at the ICALEPCS'99*. To accomplish this, software to control a couple of new devices had to be implemented, the operator interface was rebuilt and new PC-based VME-front-end computers were developed. To supply the large number of correction dipole steerers on the 43 recirculation paths, a new type of multi-channel power supplies was developed in-house. An enhanced system for digitising the signals of the rf-position monitors on the linac axes has been set up to improve the automatic beam position optimisation in the RTMs and to enable it in the HDSM.

* Proceedings of ICALEPCS'99, page 645.

 
 
WPPA15 Use of a Three-Layer Control System for Non-Destructive Beam Probe Monitor controls, electron, damping, vacuum 345
 
  • D. A. Malyutin, A. A. Starostenko, D. Bolkhovityanov
    BINP SB RAS, Novosibirsk
  The non-destructive beam probe is based on the scanning of a thin electron beam within the energy range 20-100 kV in the electromagnetic field of an intensive relativistic bunch. A CCD-camera is used to view the beam "image." Initially the facility was controlled by a standalone application. This was dictated mainly by specifics of a CCD-camera and digital oscilloscopes, which are required for tuning. Now, when CCD-camera and digital oscilloscopes are fully supported by a CX networked control system (based on the 3-layer model), the standalone application was replaced by a CX-based set of programs. This enables remote operation, with several applications running in parallel. Additionally, this architecture allows use of scripting facilities to automate various routine tasks, which previously had to be done by hand.  
 
WPPA17 Spectra Acquisition System for the LNL ECR Ion Source controls, dipole, ion, rfq 350
 
  • A. Galatà, E. Sattin, S. Canella
    INFN/LNL, Legnaro, Padova
  Since beginning 2006 the LNL ECR ion source on a 350-kV high-voltage platform must to supply reliable and stable beams for the operation of a linear accelerators complex: the superconducting PIAVE injector and the superconducting linear accelerator ALPI. At the end of 2006 a new spectra acquisition system was put into operation for the ECRIS setup and beam periodic checks. The previously used spectra acquisition system was running only on a local scope on the high-voltage platform while the new system was required to work both on the local and on the remote control computer in the console room. To achieve this goal a set of new devices had to be integrated in the standard remote control system. New software modules had also to be developed and integrated in the existent and working control system. An important goal of this upgrade was to assembly a tool that may be easily installed, used and maintained on different computer platforms (Linux and Windows PCs) and that may cope with future changes in the hardware devices to be used for spectra acquisition. Here a survey of this new facility is given.  
 
WPPA21 DOOCS Camera System laser, diagnostics, controls, free-electron-laser 359
 
  • R. Rybnikov, G. Grygiel
    DESY, Hamburg
  The Free Electron Laser in Hamburg (FLASH), with its complex accelerator diagnostics and user experiments, requires a lot of different cameras for both the operation and the experiments. A common interface for simple USB cameras, for fire wire cameras, and for high resolution cameras with, e.g. multiple "region of interest" was developed. This system integrates the various camera types in a transparent way into the FLASH control system DOOCS. In addition, the cameras are connected to a fast data acquisition system (DAQ). The DAQ provides the synchronization with other diagnostics data, online processing of the images, and a long time archiving.  
 
WPPA33 Console System Using Thin Client for the J-PARC Accelerator controls, monitoring, klystron, target 383
 
  • T. Iitsuka, S. Motohashi, M. Takagi, S. Y. Yoshida
    Kanto Information Service (KIS), Accelerator Group, Ibaraki
  • N. Kamikubota, T. Katoh, H. Nakagawa, J.-I. Odagiri, N. Yamamoto
    KEK, Ibaraki
  An accelerator console system, based on a commercial thin client, has been developed for J-PARC accelerator operation and software development. Using thin client terminals, we expect a higher reliability and longer life-cycle due to more robust hardware (i.e., diskless and fanless configuration) than standard PCs. All of the console terminals share a common development/operation environment. We introduced LDAP (Lightweight Directory Access Protocol) for user authentication and NFS (Network File System) to provide users with standard tools and environment (EPICS tools, Java SDK, and so on) with standard directory structures. We have used the console system for beam commissioning and software development in the J-PARC. This paper describes early experiences with them.  
 
WPPB06 Synchronization System of Synchrotron SOLEIL storage-ring, booster, synchrotron, injection 409
 
  • P. Betinelli, L. Cassinari, J.-M. Filhol, B. Gagey, F. Langlois, A. Loulergue, J. P. Ricaud
    SOLEIL, Gif-sur-Yvette
  To bring electrons from the LINAC to the storage ring, much equipment must be triggered synchronously to the beam. The timing system provides the time base needed for this purpose. More than a simple clocks distribution system, it is a real network, broadcasting clocks and data all over the synchrotron. Data are used to send events to equipment: for example, injection of electrons inside the booster, extraction of electrons from the booster to the storage ring, or even triggering diagnostic equipment. The timing system is made up of a standalone CENTRAL system and several cPCI LOCAL boards. The CENTRAL system provides clocks and data and broadcasts them to the LOCAL boards through an optical fiber network. LOCAL boards are placed close to the equipment, and they provide delayed signals to trigger them. These delays can be precisely adjusted by the user, making the equipment synchronous with the electron beam. After a brief explanation of our needs, the presentation describes the timing systems (architecture, performance, etc.) used at SOLEIL. It also describes the results after a year of use: the good, the bad, and the truth (well, maybe).  
 
WPPB23 Metrological Testing of DLS Timing System gun, booster, fibre-optics, single-bunch 445
 
  • A. Gonias, M. T. Heron, Y. S. Chernousko
    Diamond, Oxfordshire
  • E. Pietarinen, J. Pietarinen
    MRF, Helsinki
  The Diamond timing system is the latest-generation development of the design, principles, and technologies currently implemented in the Advanced Photon Source and Swiss Light Source timing systems. It provides the ability to generate reference events, distribute them over a fiber-optic network, and decode and process them at the equipment to be controlled. The Diamond timing system has now been operational for over a year. The systematic characterization of the installed system, to understand the performance, and the results of these measurements are presented.  
 
WPPB37 Fast BPM DAQ System Using Windows Oscilloscope-based EPICS IOC controls, feedback, factory, photon 469
 
  • K. Furukawa, T. Suwada, M. Satoh
    KEK, Ibaraki
  • T. Kudou, S. Kusano
    MELCO SC, Tsukuba
  • J. W. Wang
    USTC, Hefei, Anhui
  The non-destructive beam position monitor (BPM) is an 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 orbit feedback. In addition, some of them are also used for the beam energy feedback loops. The current DAQ system consists of the digital oscilloscopes and the VME computers. They are connected with the GPIB, and a signal from each electrode is analyzed with a predetermined response function once per second by a VME computer that is connected to the upper-layer control servers via Ethernet. The KEKB injector linac is planned to be upgraded to perform the simultaneous injection for 4-rings. In this operation mode, a fast DAQ system is strongly required. In the current system, maximum DAQ rate is strictly limited by the oscilloscope performance, and it should be improved for the 50-Hz measurement. For these reasons, we made the decision to replace the current DAQ system with the fast digital oscilloscope. In this paper, we will present the system description of the new DAQ system, and the detailed result of the performance test will be presented.  
 
RPPA02 Linac RF Feed-forward Development at TLS controls, klystron, electron, beam-loading 523
 
  • K. T. Hsu, J.-Y. Hwang, D. Lee, K.-K. Lin, C. Y. Wu, K. H. Hu
    NSRRC, Hsinchu
  Performance of an electron linear accelerator is very important for synchrotron light source operation. Its performance in amplitude and phase of the RF field will decide the quality of extract beam. The RF feed-forward control is helpful to fixed amplitude and phase constant and keeps on stable beam extract. Design consideration and details of the implementation will be summary in this report.  
 
RPPA26 Database for Control System of J-PARC 3 GeV RCS controls, power-supply, monitoring, pick-up 567
 
  • S. F. Fukuta
    MELCO SC, Tsukuba
  • Y. Kato, M. Kawase, H. Sakaki, H. Sako, H. Yoshikawa, H. Takahashi
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
  • S. S. Sawa
    Total Support Systems Corporation, Tokai-mura, Naka-gun, Ibaraki
  • M. Sugimoto
    Mitsubishi Electric Control Software Corp, Kobe
  The Control System of J-PARC 3GeV RCS is configured based on Database, which is comprised of Component Data Management DB (Component DB) and Data Acquisition DB (Operation DB. Component DB was developed mainly to manage the data on accelerator components and to generate EPICS records automatically using the data. Presently we are testing the reliability of DB application software at Linac operation. Later most Linac EPICS records are generated from DB, and we are able to operate Linac with very few problems. Operation DB collects the two kinds of data. One is EPICS records data, and the other is synchronized data. Now we are testing the reliability of application software for EPICS records data collection, and we have confirmed that EPICS record data are corrected with very few problems. Later Linac EPICS records data are inserted in Operation DB from Linac Operation start. On the other hand, application software for synchronized data collection is now being developed, and we will test the reliability of this application software from comprehensive information on RCS operation. We report on the status of development for Database for Control System of J-PARC 3GeV RCS.  
 
RPPA30 Drift Compensation for the SNS Laserwire laser, feedback, controls, SNS 576
 
  • A. M. Barker, W. P. Grice, W. Blokland
    ORNL, Oak Ridge, Tennessee
  The Spallation Neutron Source (SNS) uses a laserwire to measure the transverse profiles in the Super Conduction Linac (SCL). The laser is located in a service building downstream from the SCL. Mirrors direct the laser light to a specific location to interact with the ion beam. Because of the long travel length of the light, up to 300 feet, minor mirror movements become large enough at the down stream station that the drift over time must be corrected. In this paper we describe how we correct for the drift and present our results.  
 
RPPA39 Accelerator Trouble Ticket controls, vacuum, feedback, cryogenics 600
 
  • C. Bravo, D. Maselli, G. Mazzitelli, T. Tonus, A. Camiletti
    INFN/LNF, Frascati (Roma)
  The DAFNE Accelerator complex, a 1020-MeV center of mass lepton collider for Phi particle production, consists of a linear accelerator, a damping ring, nearly 180 m of transfer lines, two storage rings that intersect in two points, a test beam area providing e+/e- and photos (BTF) on demand, and three synchrotron light lines (DAFNE-L). The complexity of the machine and subsystem pushed us to develop a system for logging, archiving, and making statistics and history of the DAFNE accelerator and experimental user’s faults, warnings, news, and general setup information. The Accelerator Trouble Ticket is a web tool (PHP, MySQL, and email based), that allows for complete handling and sharing of all the accelerator information with the scientific, technical, and service staff; it also allows experimental users easy access via the World Wide Web. The architecture and implementation of the system and the ease of exportation and configuration for any accelerator complex is presented, along with examples of products and results obtained from the first year of operation at the DAFNE accelerator.  
 
RPPB10 Use of E-Logbook in VEPP-5 Control System controls, injection, positron, electron 624
 
  • D. Bolkhovityanov, R. E. Kuskov
    BINP SB RAS, Novosibirsk
  An electronic logbook (e-logbook) becomes a must for large experimental facilities not only during operation, but also at building and commissionning stages (where VEPP-5 is now). Unfortunately, the "market" of such products is almost nonexistent. So, the choice is narrow: either use some other lab's software (adapting it for local needs) or create your own one from scratch. We have chosen the former way and picked DOOCS e-logbook from DESY. Main changes concerned localization (since Russian uses cyrillic letters, not latin) and data feeding mechanism (due to different model of logging from applications). Integration with GIS and alarm system is being examined.  
 
RPPB11 EPICS CA Gateway Employment in the BEPCII Network controls, monitoring, photon 627
 
  • J. Liu, C. H. Wang, Y. H. Wang, Z. Zhao, X. H. Huang
    IHEP Beijing, Beijing
  The control network of the BEPCII is divided into two separate different subnets. In order to access IOC PVs between the separate subnets as well as IOC PVs from the campus network, we adopt EPICS CA gateway in the BEPCII network. This paper describes the EPICS CA gateway employment and network management in the BEPCII .  
 
RPPB16 SPARCbook: A New Electronic Book controls, vacuum, power-supply, insertion 638
 
  • A. Cianchi
    INFN-Roma II, Roma
  • S. Fioravanti, E. Pace
    INFN/LNF, Frascati (Roma)
  Many electronic books exist for logging the activity of an accelerator, but all of them are basically a translation of a paper book in an electronic format, with some extra features coming from the usage of a database for storing the information. SPARCbook is based on PostgreSQL, an open source database. A new, nice GUI has been developed for manually inserting data (both text and pictures) in the logbook and retrieving the old information, using several filters like date, author, or type of information. This GUI has been developed using HTML, PHP, and JavaScript, and it is quite similar to GUIs of already existing electronic logbooks. The peculiarity of SPARCbook is that it is also possible to insert information in the book from the control system of the accelerator, automatically or after a human decision. The SPARC control system is a distributed system, developed using LabVIEW, based on PCs and real-time CPUs. Information, tables, and graphs can be submitted from each CPU and from the central control system to SPARCbook making a query to PostgreSQL via TCP. That makes the system really powerful because any commercial CPU has TCP capability.  
 
RPPB19 Electron Bunch Length Measurement for LCLS at SLAC controls, electron, laser, radiation 644
 
  • S. Allison, S. Chevtsov, P. Emma, K. D. Kotturi, H. Loos, S. Peng, D. Rogind, T. Straumann, S. Zelazny
    SLAC, Menlo Park, California
  At Stanford Linear Accelerator Center (SLAC) a Bunch Length Measurement system has been developed to measure the length of the electron bunch for its new Linac Coherent Light Source (LCLS). This destructive measurement uses a transverse-mounted RF deflector (TCAV) to vertically streak the electron beam and an image taken with an insertable screen and a camera. The device control software was implemented with the Experimental Physics and Industrial Control System (EPICS) toolkit. The analysis software was implemented in Matlab using the EPICS/Channel Access Interface for Scilab and Matlab (labCA). This architecture allowed engineers and physicists to develop and integrate their control and analysis without duplication of effort.  
 
RPPB23 SCORE – A Save, Compare, and Restore Application for Snapshotting Machine Settings SNS, power-supply, feedback, vacuum 656
 
  • J. G. Patton, T. A. Pelaia, J. Galambos
    ORNL, Oak Ridge, Tennessee
  SCORE is an application used to snapshot machine settings. Features include sorting by systems and subsystems, comparing live values with saved values, and database storage of the information. The compare feature is useful for diagnosing problems, and the restore feature is useful in recovering good beam tune. Features of the application and performance experience with respect to data base retrieval and live comparison will be discussed.  
 
RPPB29 Requirements and Coherent Realization of the HICAT Control System Functionality for Test, Commissioning, and Operation controls, ion, synchrotron, diagnostics 674
 
  • R. Baer, M. Schwickert, T. Fleck
    GSI, Darmstadt
  The control system for the HICAT project comprises several rather different functionalities for the whole range of demands starting from tests of single components up to the specified operation mode where the accelerator has to deliver a beam of high-energy ions with requested energy, focus and intensity for tumor treatment. We outline the concept and realization of this system which is capable of fulfilling all those needs within the implemented functions and GUIs. The range of functionality spans from test environments and trace-possibilities for single front-end controllers up to complete integrity tests of the whole accelerator for the designed operation mode. For example, for commissioning of the LINAC division the control system utilizes a 5Hz mode while typical synchrotron cycles last for several seconds and can be used with similar adjustments. In normal operation mode diagnostics like beam current are only evaluated at special times in a cycle, but it is possible to monitor and record these data at high sampling rates in a continuous mode over several hours. Furthermore it is possible to accomplish long-term stability tests of single components during normal operation.  
 
RPPB35 Administration of Control Systems at the Advanced Photon Source Using Applications Organizing Index controls, booster, storage-ring, photon 686
 
  • N. D. Arnold, D. E.R. Quock
    ANL, Argonne, Illinois
  Applications Organizing Index (AOI) is a relational database tool that has been implemented at the Advanced Photon Source (APS) to aid in the management of more than 600 unique control system applications. AOI provides control system developers an intuitive view of and navigation links to the components that make up a single control system such as source code files, operator displays, process variables, work history notes, programmable components, validation procedures, drawings, and more. The foundation for the Applications Organizing Index tool is the collaborative effort between several Experimental Physics and Industrial Control System (EPICS) sites to build the common relational database schema for documenting large and complex particle accelerator control systems, Integrated Relational Model of Installed Systems (IRMIS). This paper describes the evolution of AOI as it became populated with APS control systems component data and as users’ requests for new features of AOI became apparent.  
 
ROPB04 Beam Commissioning Software and Database for J-PARC LINAC lattice, controls, quadrupole, alignment 698
 
  • C. K. Allen
    LANL, Los Alamos, New Mexico
  • H. Ikeda
    Visual Information Center, Inc., Ibaraki-ken
  • H. Sakaki, G. B. Shen, H. Takahashi, H. Yoshikawa
    JAEA, Ibaraki-ken
  • H. Sako
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
  A beam commissioning software system based on a relational database (RDB) has been developed for the J-PARC LINAC. We developed two high-level software frameworks, JCE and XAL. JCE (Java Commissioning Environment) based on a scripting language SAD script has been developed in Java with device control, monitoring, online modelling and data analysis functions. XAL has been developed initially by SNS and developed for J-PARC. A commissioning database system has been developed to configure commonly these two frameworks, for model geometry, EPICS control, and calibration parameters. A server for unit conversion of magnet power supplies has also developed for the commissioning software. Commissioning applications for RF tuning, transverse matching, orbit correction, beam-based calibration, beam monitor controls have been developed using the two framework and successfully applied for beam tuning. We report on the status of development for the commissioning software system.  
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FOAA02 Timing and LLRF System of Japanese XFEL to Realize Femto-Second Stability acceleration, controls, laser, klystron 706
 
  • T. Fukui, N. Hosoda, H. Maesaka, T. Ohshima, T. Shintake
    RIKEN, Hyogo
  • K. Imai, M. Kourogi
    OPtical Comb, Inc., Yokohama
  • M. K. Kitamura, K. Tamasaku, Y. Otake
    RIKEN Spring-8 Harima, Hyogo
  • M. Musya
    University of electro-communications, Tokyo
  • T. Ohata
    JASRI/SPring-8, Hyogo-ken
  At SPring-8, the construction of a 5712-MHz linac and undulators as a light source for XFEL is in progress. There are two parts of the linac in accordance with requirements of phase accuracy to realize a stable SASE generation. One is a crest acceleration part using a sinusoidal wave. The other is an off-crest part that corresponds to a bunch compressor giving an energy chirp to a beam bunch. To generate the stable SASE, the beam energy stability of 10-4 is required. To obtain this stability, the accuracy of sub-picoseconds is required in the crest part, and several ten femto-seconds are necessary in the off-crest part. The requirement in the crest part was achieved by rf control instruments based on an electronic circuit in the SCSS prototype accelerator. However, realizing the several ten femto-seconds accuracy is almost impossible by the present electronic circuit technology. Therefore, for overcoming this fact, we employed laser technology. In this paper, we describe a system based on IQ control technology to obtain sub-picoseconds accuracy and an optical signal distribution system using an optical comb generator that could realize several ten femto-seconds accuracy.  
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FOAB02 Digital Phase Control System for SSRF Linac controls, klystron, background, cathode 717
 
  • D. K. Liu, L. Y. Yu, C. X. Yin
    SINAP, Shanghai
  SSRF 150MeV linac includes two klystrons and two solid power amplifers, which drive two klystrons, respectively. The accelerating section is constant gradient accelerating structure, and its working frequency is 2998MHz, six times the storage ring RF frequency. In order to reach the requirement for the RF phase stability (±1 degree), the full digital phase control system, which includes RF front-end, AD, DA, and FPGA, is designed. FPGA, the key for phase control system, contains digital I/Q demoulator (phase detector), digital I/Q modulator (phase shifter), and control algorithms. Klystron forward signal is down converted to IF (12.5MHz), which is detected by ADC with 50MHz clock. Digital I/Q is generated by ADC sampling data and then sent to control algorithms in FPGA. After processed by control algorithms, digital I/Q is converted to IF by DAC (50MHz). IF signal from DAC output is up converted to RF and sent to solid RF power amplifer. With the aid of FPGA, the whole period of closed-loop is about 80ns, and delay of closed-loop is less than 600ns. The test results of digital phase control system are presented in this paper.  
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