ICALEPCS07 - List of Keywords (feedback)

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feedback

Paper	Title	Other Keywords	Page
MOAB02	The Laser Megajoule Facility: Control System Status Report	laser, controls, target, diagnostics	10
	J. P. Arnoul, J. J. Dupas, J. I. Nicoloso, P. J. Betremieux CEA, Bruyères-le-Châtel F. P. Signol CESTA, Le Barp
	The French Commissariat à l'Énergie Atomique (CEA) is currently building the Laser MegaJoule (LMJ), a 240-beam laser facility, at the CEA Laboratory CESTA near Bordeaux. LMJ will be a cornerstone of CEA's "Programme Simulation," the French Stockpile Stewardship Program. LMJ is designed to deliver about 2 MJ of 0.35 μm light to targets for high energy density physics experiments, including fusion experiments. LMJ technological choices were validated with the Ligne d'Intégration Laser (LIL), a scale 1 prototype of one LMJ bundle, built at CEA/CESTA. Plasma experiments started at the end of 2004 on LIL. The construction of the LMJ building itself started in March 2003. An important milestone was successfully achieved in November 2006 with the introduction of the target chamber into the building. LMJ will be gradually commissioned from 2011 and will then begin an experimental program toward fusion. The presentation discusses LIL experience feedback, transverse requirements intended to ultimately federate control packages from different contractors, strategy for developing the Centralized Supervisory Controls, and process for computer control system global integration.
	Slides

MOAB03	Trends in Software for Large Astronomy Projects	controls, optics, laser, monitoring	13
	K. K. Gillies Gemini Observatory, Southern Operations Center, Tucson, AZ B. D. Goodrich, S. B. Wampler Advanced Technology Solar Telescope, National Solar Observatory, Tucson J. M. Johnson, K. McCann W. M. Keck Observatory, Kamuela S. Schumacher National Optical Astronomy Observatories, La Serena, Chile D. R. Silva AURA/Thirty Meter Telescope, Pasadena/CA A. Wallander, G. Chiozzi ESO, Garching bei Muenchen
	The current 8-10M ground-based telescopes require complex real-time control systems that are large, distributed, fault-tolerant, integrated, and heterogeneous. New challenges are on the horizon with new instruments, AO, laser guide stars, and the next generation of even larger telescopes. These projects are characterized by increasing complexity, where requirements cannot be met in isolation due to the high coupling between the components in the control and acquisition chain. Additionally, the high cost for the observing time imposes very challenging requirements in terms of system reliability and observing efficiency. The challenges presented by the next generation of telescopes go beyond a matter of scale and may even require a change in paradigm. Although our focus is on control systems, it is essential to keep in mind that this is just one of the several subsystems integrated in the whole observatory end-to-end operation. In this paper we show how the astronomical community is responding to these challenges in the software arena. We analyze the evolution in control system architecture and software infrastructure, looking into the future for these two generations of projects.
	Slides

MOPB02	XAL Status	target, SNS, quadrupole, beam-losses	34
	C. K. Allen, S. M. Cousineau, J. Galambos, J. A. Holmes, A. P. Shishlo, Y. Zhang, A. P. Zhukov, T. A. Pelaia ORNL, Oak Ridge, Tennessee P. Chu SLAC, Menlo Park, California
	XAL is a Java framework for developing accelerator physics applications for the commissioning and operation of the Spallation Neutron Source. It was designed to be extensible and has evolved to support ongoing accelerator operations. In particular, the on-line model and applications have been extended to support the Ring. Core XAL design features eased the extension from Linac to Ring support and in some cases made it transparent. We discuss the recent advances and future directions in XAL and the current efforts to open the project to broader collaboration.
	Slides

TOAA04	Status of the FLASH Free Electron Laser Control System	controls, laser, free-electron-laser, electron	53
	K. Rehlich DESY, Hamburg
	FLASH (Free electron LASer in Hamburg) is the first facility based on the 1.3GHz superconducting cavity technology. It is a test bed for this technology to prepare future accelerators like the XFEL and ILC. Since 2005 FLASH has run as a reliable FEL source for user experiments. The control system DOOCS (Distributed Object-Oriented Control System) provides the required full bunch resolution of the diagnostics. A fast DAQ (Data AQuisition system) has successfully been integrated to support slow feedback, diagnostics, and data recording for both the linac operation and the user experiments. The control system will be slowly upgraded to implement the further requirements for the XFEL.
	Slides

TOAB04	The LIGO Detectors Controls	laser, controls, site, background	68
	D. Sigg LIGO Hanford Observatory, Richland
	All three LIGO detectors have reached their design sensitivities. A sky-averaged detection range (SNR > 8) of more than 15 Mpc for inspiral binary neutron stars with masses of 1.4 Msol has been achieved with the two 4 km instruments. The fifth LIGO science started in November 2006 and more than 300 days of coincidence data has been collected so far. The feedback controls system is a major component to make LIGO work and its performance has been crucial to achieve the present sensitivity.
	Slides

TOAB05	The Status of Virgo	laser, controls, injection, vacuum	71
	F. Carbognani EGO, Pisa
	Virgo is the largest gravitational wave detector in Europe. The detector, built by a French–Italian collaboration, is located near Pisa (Italy) and is based on a laser interferometer with 3-km-long arms. It aims at the detection of gravitational waves emitted by galactic and extragalactic sources such as pulsars, supernovae, and the coalescences of binary black holes and neutron stars in a frequency window comprised between 10 Hz and a few kHz. Since 2003 the detector has been going through its commissioning phase, and the first long observing run is planned to start in May 2007. The present status of the experiment and its foreseen upgrades are described in this article. Franco Carbognani is the corresponding author on behalf of the Virgo Collaboration.
	Slides

TPPA21	MDSplus Real-Time Data Access in RTAI	controls, plasma, target, background	132
	A. Barbalace, A. Luchetta, C. Taliercio, G. Manduchi Consorzio RFX, Euratom ENEA Association, Padova T. W. Fredian MIT, Cambridge, Massachusetts J. A. Stillerman MIT/PSFC, Cambridge, Massachusetts
	The MDSplus package is widely used in Nuclear Fusion research for data acquisition and management. Recent extensions of the system provide useful features for real-time applications, such as the possibility of locking selected data items in memory and real-time notification. The real-time extensions of MDSplus have been implemented as a set of C++ classes and can be easily ported to any target architecture by developing a few adapter classes. The real-time data access layer of MDSplus is currently available for Windows, Linux, VxWorks and RTAI. In particular, the RTAI platform is very promising in this context because it allows the co-existence of offline, non-real-time tasks with real-time ones. It is hence possible to devise an architecture where real-time functionality is handled by a few selected tasks using the real-time data access layer of MDSplus, whereas background, non-real-time activity is carried out by “traditional” Linux tasks. This organization may be of interest for the next generation of fusion devices with long-duration discharges, during which the system has to provide feedback control in real time and to sustain continuous data acquisition and storage.

TPPA32	LivEPICS: An EPICS Linux Live CD NAGIOS Equipped	controls, site, monitoring	161
	R. Lange BESSY GmbH, Berlin N. J. Richter CQU, Rockhampton M. G. Giacchini INFN/LNL, Legnaro, Padova
	EPICS* distributions – analogous to a Linux distribution, are collections of EPICS software that have been proven to work together. It is much quicker to download and install a distribution than it would be to obtain all of the individual pieces and install them separately. LivEPICS** distribution contains binaries from EPICS Base, various extensions, and source code. * EPICS official web site: http://www.aps.anl.gov/epics/distributions/index.php** M. Giacchini., PCaPAC Workshop 2006 poster. http://conferences.jlab.org/pcapac/talks/poster/Giacchini.pdf.

TPPB31	Status of the SOLEIL Control System	controls, synchrotron, target, closed-orbit	229
	B. Gagey, N. L. Leclercq, M. O. Ounsy, A. Buteau SOLEIL, Gif-sur-Yvette
	The SOLEIL synchrotron light source is based on a 2.75 GeV electron storage ring that was commissioned in 2006 at Saint Aubin, France. The first 10 beamlines are currently commissioned, and regular user operation is planned for summer 2007. SOLEIL is also the first 100% TANGO-controlled facility. Originally developed at the ESRF, the object-oriented TANGO Control Framework is now the core component of a close collaboration between four synchrotron facilities: ESRF, SOLEIL, ELETTRA, and ALBA. The SOLEIL control system is an example of the TANGO capability of federating heterogeneous off-the-shelf technologies into a coherent whole on the basis of a single concept: the device. The aim of the presentation is to provide an overview of the “Service-Oriented Architecture,” which is now routinely used for the control of both the SOLEIL accelerators and beamlines. The ubiquity of the TANGO services will be illustrated on both server and client sides of the control system architecture. The main software subsystems will be presented. We will conclude with a feedback report by presenting some figures and statistics about the control system's stability after its first year of operation.

TPPB41	NSLS II Control System Overview	controls, power-supply, SNS, insertion	253
	L. R. Dalesio SLAC, Menlo Park, California
	The NSLS II is a new light source to be built at Brookhaven National Laboratory. The control system tools will be started this year. Technical areas of interest to improve productivity, maintainability, and performance, include Relational Database tools to support all aspects of the project, online Bbam modelling, intelligent distributed device controllers, and engineering and operation tools. We will discuss our goals and projects to make progress in these areas.

TOPB01	Upgrade Program of the PSI High Intensity Cyclotron	controls, power-supply, cyclotron, diagnostics	259
	D. Anicic, A. C. Mezger, D. Vermeulen, T. Korhonen PSI, Villigen
	The PSI 590-MeV Cyclotron is already more than 30 years in operation. However, it still holds the world record in continuous beam power. There is an active experiment program being pursued, and new experiments are planned and being built. In addition, the beam intensity is being upgraded by 50%. The control system has been through several incremental upgrades. However, the new requirements and other developments at PSI (other accelerator facilities) force again an upgrade. This time the whole architecture of the system is to be changed. The controls hardware architecture will be changed and the underlying software will move to EPICS. All this has to happen without compromising the operation schedule. In the upgrade program we are planning to benefit from several new developments, both in-house and together with the community. The central technologies to be used will be presented. The issue of how to tackle the somewhat contradictory goals of upgrading on the fly will be discussed.
	Slides

TOPB03	The Evolution of the ELETTRA Control System	controls, booster, storage-ring, radio-frequency	265
	L. Pivetta, C. Scafuri ELETTRA, Basovizza, Trieste
	The evolution of the ELETTRA control system is presented by focusing on the major technical upgrades. The ElETTRA control system has been in operation since 1993. The orginal control system architecture was based on a three layer design. A field bus connected the low level computers used to interface the accelerator devices whilst a ten megabit shared Ethernet network linked the middle layer computers to the servers and operator workstations. A first control system upgrade started in 1998 in order to dismiss the field bus and to provide more computing power. A couple of years later a major rework of the network infrastructure was carried out with the introduction of a switched Ethernet architecture. Starting from 2003, in view of the construction of a new booster injector for the storage ring and of the FERMI@elettra free electron laser, new control system hardware and software platforms have been selected. Driven by the additional necessity of cutting development and maintenance costs, the Tango control system has been adopted. The tools developed in order to effectively manage the integration and coexistence of the legacy and new control system are described.
	Slides

WOAA01	The ILC Control System	controls, monitoring, linear-collider, collider	271
	R. S. Larsen SLAC, Menlo Park, California F. Lenkszus, C. W. Saunders, J. Carwardine ANL, Argonne, Illinois P. M. McBride, M. Votava Fermilab, Batavia, Illinois S. Michizono KEK, Ibaraki S. Simrock DESY, Hamburg
	Since the last ICALEPCS, a small multi-region team has developed a reference design model for the ILC Control System as part of the ILC Global Design Effort. The scale and performance parameters of the ILC accelerator require new thinking in regards to control system design. Technical challenges include the large number of accelerator systems to be controlled, the large scale of the accelerator facility, the high degree of automation needed during accelerator operations, and control system equipment requiring “Five Nines” availability. The R&D path for high availability touches the control system hardware, software, and overall architecture, and extends beyond traditional interfaces into the accelerator technical systems. Software considerations for HA include fault detection through exhaustive out-of-band monitoring and automatic state migration to redundant systems, while the telecom industry’s emerging ATCA standard–conceived, specified, and designed for High Availability–is being evaluated for suitability for ILC front-end electronics. Parallels will be drawn with control system challenges facing the ITER CODAC team.
	Slides

WOAA05	Stepper Motor Control, PLC vs VME	controls, SNS, linac, 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.
	Slides

WOAB01	Operational Tools at the Stanford Linear Accelerator Center	controls, lattice, diagnostics, linac	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.
	Slides

WOPA02	Remote Operations of an Accelerator Using the Grid	controls, storage-ring, instrumentation, simulation	303
	M. Pugliese, M. Prica ELETTRA, Basovizza, Trieste
	The GRIDCC* is a three-year project funded by the European Commission. Its goal is integrating instruments and sensors with the traditional Grid resources. The GRIDCC middleware is being designed bearing in mind use cases from a very diverse set of applications, and as the result, the GRIDCC architecture provides access to the instruments in as generic a way as possible. GRIDCC is also developing an adaptable user interface and a mechanism for executing complex workflows in order to increase both the usability and the usefulness of the system. The new middleware is incorporated into significant applications that will allow the software validation in terms both of functionality and quality of service. The pilot application this paper focuses on is applying GRIDCC to support Remote Operations of the ELETTRA synchrotron radiation facility. We describe the results of implementing via GRIDCC complex workflows involved in the both routine operations and troubleshooting scenarios. In particular, the implementation of an orbit correction feedback shows the level of integration of instruments and traditional Grid resources which can be reached using the GRIDCC middleware. * http://www.gridcc.org.
	Slides

WOPA05	Evolution of Visual DCT	controls, background, photon	313
	M. Sekoranja, I. Verstovsek, J. Bobnar Cosylab, Ljubljana
	Visual DCT (Visual Database Configuration Tool) became the most advanced and popular graphical EPICS database configuration tool for creating, editing and debugging EPICS databases. EPICS is a widely used control system based on a real-time database configured via ASCII files. The most recent development achievements in Eclipse IDE, which is also a RCP application portable to many operating systems since it is written in Java, brought another perspective to development of Visual DCT. Using Eclipse GEF (Graphical Editing Framework) for graphical features and EMF (Eclipse Modeling Framework) for database code generation makes it possible for Visual DCT to become a part of the Eclipse IDE. Using Eclipse as the framework for application automatically adds common features as plug-in support, debugging tools and many others. In addition, Visual DCT could be used as a part of the CSS (Control System Studio) allowing easy handling of EPICS databases using MB3 (mouse button 3) and drag and drop functionalities.
	Slides

WPPA02	Conceptual Design of the TPS Control System	controls, power-supply, synchrotron, beam-losses	319
	J. Chen, P. C. Chiu, K. T. Hsu, S. Y. Hsu, K. H. Hu, D. Lee, C.-J. Wang, C. Y. Wu, C. H. Kuo NSRRC, Hsinchu
	Baseline design of the Taiwan photon Source (TPS) control system of NSRRC is proposed. The control system design is based on EPICS toolkits due to it has large user base in synchrotron light source around the world. Guidelines for hardware platform and operating system choice will be addressed. The standard hardware interface driver is developing and testing now. The asynchronous driver of EPICS will be applied to be the most of standard hardware interface. The expected control system for TPS will provide versatile environments for machine commissioning, operation, and research. The open architecture led machine upgrade or modify without toil. Fewer efforts for machine maintenance are essential. Performance and reliability of the control system will be guarantee form the design phase. Design consideration will be summary in this report.

WPPA13	Upgrade of Corrector Power Supplies for Pohang Light Source	power-supply, controls, insertion, insertion-device	342
	J. Choi, K. M. Ha, J. Y. Huang, S.-H. Jeong, H.-S. Kang, S.-C. Kim, J.-H. Suh, I. S. Ko PAL, Pohang, Kyungbuk
	There are 70 vertical and 70 horizontal correctors for Pohang Light Source. Until 2003, power supplies for these correctors were based on 1980’s technology, so the global orbit feedback system was not possible with poor 12-bit resolution. In 2003, a task force team was assembled to develop new power supplies with BESSY type ADC cards. By Summer 2004, two vertical correctors in each lattice were connected with new power supplies, and the global orbit feedback was available within the accuracy of 5 microns. However, this replacement was not enough to satisfy the beam stability requirement of 2 microns for PLS. We have launched another power supply design based on all digital technology. This attempt was completed within a year, and 80 units were assembled in house. Currently, the global orbit feedback system is running successfully with new digital power supplies and the compensation of chamber motion due to the thermal load by using digital displacement transducers attached on each BPMs.

WPPA19	Status of the DELTA Control System	controls, electron, synchrotron, storage-ring	356
	P. Hartmann, O. Kopitetzki, G. Schuenemann, P. Towalski, D. Schirmer DELTA, Dortmund
	Since the change-over to EPICS in 2001, further developments in soft- and hardware and continuous improvements concerning the control system infrastructure as well as the accelerator modelling have been performed. A set of new applications like a bunch filling pattern control and a revised tune measurement software have been established. Furthermore, a new web-server including a content management system has been installed. The complete EPICS data logging and the electronic shift book entries are now managed by a MySQL database. Necessary preparations for automatic machine operation (unmanned control room) are in progress. This article summarizes the activities during the last years and plans for the future.

WPPB11	Secure Remote Operations of NSLS Beamlines with (Free)NX	controls, site, monitoring, synchrotron	421
	D. P. Siddons, Z. Yin BNL, Upton, Long Island, New York
	In light source beamlines, there are times when remote operations from users are desired. This becomes challenging, considering cybersecurity has been dramatically tightened throughout many facilities. Remote X-windows display to Unix/Linux workstations at the facilities, either with straight x-traffic or tunneling through ssh (ssh -XC), is quite slow over long distance, thus not quite suitable for remote control/operations. We implemented a solution that employs the open source FreeNX technology. With its efficient compression technology, the bandwidth usage is quite small and the response time from long distance is very impressive. The setup we have, involves a freenx server configured on the linux workstation at the facility and free downloadable clients (Windows, Mac, Linux) at the remote site to connect to the freenx servers. All traffic are tunneled through ssh, and special keys can be used to further security. The response time is so good that remote operations are routinely performed. We believe this technology can have great implications for other facilities, including those for the high energy physics community.

WPPB13	Development of Flexible and Logic-Reconfigurable VME Boards	controls, synchrotron, synchrotron-radiation, radiation	427
	T. Kudo, T. Ohata, T. Hirono JASRI/SPring-8, Hyogo-ken
	We developed a logic-reconfigurable VME board with high flexibility. The board has two parts, a base board and two IO daughter boards. The base board has a field programmable gate arrays (FPGA) chip for execution of user logic, such as a digital low-pass filter or calculation of the median of a spot image. Users can install their logics into the FPGA via VME bus. The IO daughter boards are simple IO modules such as analog inputs/outputs (AIOs) or digital inputs/outputs (DIOs). The data from the IO board is sent to the base board and processed there. As the IO daughter board is separated physically, the user can customize the VME board by choosing daughter boards and does not need to develop whole device. We have developed DIO, AIO, and Camera Link interface as the IO daughter board. In the presentation, design concept and implementation of this VME board are shown with some applications.

WPPB14	Development of a Signal Processing Board for Spill Digital Servo System for Proton Synchrotron	extraction, controls, resonance, quadrupole	430
	T. Adachi, R. Muto, H. Sato, H. Someya, M. Tomizawa, H. Nakagawa KEK, Ibaraki T. I. Ichikawa, K. Mochiki Musasi Institute of Technology, Instrumentation and Control Laboratory, Tokyo A. Kiyomichi JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken K. Noda NIRS, Chiba-shi
	A prototype data processing board for a digital spill control system has been made. The system is considered to be used to control proton beams in 50-GeV synchrotron rings of J-PARC. The prototype circuit board consists of four ADCs, two FPGAs, a DSP, memories, and four DACs. The four inputs of the processing board are assumed to be an intensity signal of the proton beam in the accelerator rings, a digital gate signal that indicates the duration of beam extraction, a spill signal that shows the intensity of the extracted proton beam, and a reserved signal. The resolution and maximum sampling speed of the ADC are 16 bit and 2.5 Msps, respectively. One of the FPGAs is Vartex-2 1000-4C, and a real-time power spectrum analyzer will be implemented. It analyzes the spill signal every 1ms or shorter period. The analyzed result reflects optimum parameters used in spill control by servo. The DSP takes charge of these digital servo processing. The DACs with 16-bit resolution drive control signals for magnet currents. The system has another FPGA for communication between the processing board and network. MicroBlase CPU core is implemented, and uCLinux is installed to use EPICS.

WPPB18	Customizable Motion Control Solution Supporting Large Distances	controls, septum, injection, radiation	436
	R. Baer, G. Froehlich, K. Herlo, U. Krause, M. Schwickert GSI, Darmstadt J. Bobnar, I. Kriznar, J. Dedic Cosylab, Ljubljana
	Motion control solutions for controlling a movement of motorized mechanical subsystems for accelerators, telescopes or similar spatially distributed systems require high degree of flexibility regarding the use and connectivity. One platform should fit different applications and provide cost effective solutions. A connection to the control system (CS) is required on one side, while on the other side a connection to a variety of motors, position encoders and other feedback devices must be provided. In case of more complex mechanics, an advanced kinematics control is essential to provide features such as motion tuning, interpolation and controlled acceleration. An embedded computer is used for SW-flexibility and CS-support. Motion control capabilities are provided by separate HW; programmable multi axis controller. Signal adaptation for a direct connection of the equipment is managed by an interface board. Easy installation and debugging is provided by low-level local control; front panel switches and indicators, RS232 or direct keyboard and monitor access. An advanced approach is required in case of a larger distance between the motor controller and the motors with position encoders.

WPPB25	Realization of a Custom Designed FPGA Based Embedded Controller	controls, heavy-ion, collider, diagnostics	451
	M. Harvey, T. Hayes, L. T. Hoff, R. C. Lee, P. Oddo, K. Smith, F. Severino BNL, Upton, Long Island, New York
	As part of the low-level RF (LLRF) upgrade project at Brookhaven National Laboratory’s Collider-Accelerator Department (BNL C-AD), we have recently developed and tested a prototype high-performance embedded controller. This controller is a custom-designed PMC module employing a Xilinx V4FX60 FPGA with a PowerPC405 embedded processor and a wide variety of onboard peripherals (DDR2 SDRAM, FLASH, Ethernet, PCI, multi-gigabit serial transceivers, etc.). The controller is capable of running either an embedded version of LINUX or VxWorks, the standard operating system for RHIC front-end computers (FECs). We have successfully demonstrated functionality of this controller as a standard RHIC FEC and tested all onboard peripherals. We now have the ability to develop complex, custom digital controllers within the framework of the standard RHIC control system infrastructure. This paper will describe various aspects of this development effort, including the basic hardware, functional capabilities, development environment, kernel and system integration, and plans for further development.

WPPB37	Fast BPM DAQ System Using Windows Oscilloscope-based EPICS IOC	linac, controls, 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.

WPPB39	130-MHz, 16-Bit Four-Channel Digitizer	target, controls, factory, impedance	475
	R. Akre, T. Straumann, K. D. Kotturi SLAC, Menlo Park, California
	The PAD (Phase and Amplitude Detector) was designed to digitize high-speed analog input data with large dynamic range. Because of its high speed and high resolution processing capability, it has been useful to applications beyond measuring phase and amplitude of RF signals and klystron beam voltages. These applications include beam-position monitors, bunch-length monitors, and beam-charge monitors. The digitizer used is the Linear Technologies LTC2208. It was the first 16-bit digitizer chip on the market capable of running at 119MHz; it is specified to run up to 130MHz. For each channel, the 16-bit digitized signal from the LTC2208 is clocked into a 64k sample FIFO. Commercial FIFOs are available that store up to 256k samples in the same package. The data are then read from the FIFO into the Arcturus Coldfire uCDIMM. A CPLD is used to handle triggering, resetting the FIFO, interfacing the Coldfire processor to the 4 FIFOs, and interrupting the Coldfire processor. The processor runs RTEMS version 4.7 and EPICS 3.14.8.2. There is an optional add-on available that attaches to the QSPI port on the PAD for reading 8 slow, 24-bit analog signals.

WPPB40	LCLS Beam-Position Monitor Data Acquisition System	controls, monitoring, pick-up, coupling	478
	R. Akre, R. G. Johnson, K. D. Kotturi, P. Krejcik, E. Medvedko, J. Olsen, S. Smith, T. Straumann SLAC, Menlo Park, California
	In order to determine the transversal LCLS beam position from the signals induced by the beam in four stripline pickup electrodes, the BPM electronics have to process four concurrent short RF bursts with a dynamic range > 60dB. An analog front end conditions the signals for subsequent acquisition with a waveform digitizer and also provides a calibration tone that can be injected into the system in order to compensate for gain variations and drift. Timing of the calibration pulser and switches, as well as control of various programmable attenuators, is provided by an FPGA. Because no COTS waveform digitizer with the desired performance (>14bit, ≥119MSPS) was available, the PAD digitizer (see separate contribution WPPB39) was selected. It turned out that the combination of a waveform digitizer with a low-end embedded CPU running a real-time OS (RTEMS) and control system (EPICS) is extremely flexible and could very easily be customized for our application. However, in order to meet the BPM real-time needs (readings in < 1ms), a second Ethernet interface was added to the PAD so that waveforms can be shipped, circumventing the ordinary TCP/IP stack on a dedicated link.

ROAA05	An Approach to Stabilizing Large Telescopes for Stellar Interferometry	controls, acceleration, site	497
	J. Sahlmann, A. Wallander, N. Di Lieto ESO, Garching bei Muenchen G. Vasisht Jet Propulsion Laboratory, Pasadena, California
	In stellar interferometry fringe-tracking is a method of stabilizing the Optical Pathlength Difference (OPD) from the observed astronomical source to the instrument detector via different telescopes in an interferometric array. At the ESO VLT Interferometer, which includes four 8.2 m class Unit Telescopes (UTs), stabilization to better than a tenth of the observing wavelength is required in order to improve the quality and sensitivity of fringe measurements on the interferometer's scientific instruments. Unfortunately, fast mechanical vibrations due to myriad sources in the observatory infrastructure couple to UT support structure and propagate to the large telescope mirrors. The mirror motions are fast and large (typically about a wavelength) and must be compensated for in real time. We have implemented a scheme to measure the accelerations imparted to the primary, secondary, and tertiary mirrors of the UTs via a grid of suitably placed accelerometers. The measured accelerations, coupled with a simple geometric model, are converted to optical pathlengths and canceled by a wideband feed-forward compensation to a downstream optical delay line.
	Slides

ROAB02	Software Development and Testing: Approach and Challenges in a Distributed HEP Collaboration	controls, target, site, background	503
	D. Burckhart-Chromek CERN, Geneva
	In the development of the ATLAS Trigger and Data Acquisition (TDAQ) software, the iterative waterfall model, evolutionary process management, formal software inspection, as well as lightweight review techniques are applied. The long preparation phase with a geographically widespread team required that the standard techniques be adapted to this HEP environment. Special emphasis is given to the testing process. Unit tests and check targets in nightly project builds form the basis for the subsequent software project release testing. The integrated software is then run on computing farms that give further opportunity for gaining experience, fault finding, and acquiring ideas for improvement. Dedicated tests on a farm of up to 1000 nodes address the large-scale aspect of the project. Integration test activities on the experimental site include the special purpose-built event readout hardware. Deployment in detector commissioning starts the countdown towards running the final ATLAS experiment. These activities aim at understanding and completing the complex system, but also help in forming a team whose members have a variety of expertise, working cultures, and professional backgrounds.
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RPPA10	Status of the Diamond Fast Orbit Feedback System	controls, power-supply, insertion, insertion-device	535
	M. G. Abbott, J. A. Dobbing, M. T. Heron, I. P.S. Martin, G. Rehm, I. Uzun, J. Rowland Diamond, Oxfordshire S. Duncan University of Oxford, Oxford
	We present the development of transverse orbit stability control at Diamond. We discuss the low latency feedback loop required to effectively suppress high-frequency noise, which informs the choice of network topology and processing units. We explore the use of the field-programmable gate array in the Libera beam position monitor as a communication controller and the vector unit of the PowerPC G4 in the compensator. System models and results from preliminary tests on the machine are shown.

RPPA14	Java Tool Framework for Automation of Hardware Commissioning and Maintenance Procedures	controls, laser, alignment, optics	547
	J. M. Fisher, J. B. Gordon, L. J. Lagin, S. L. West, J. C. Ho LLNL, Livermore, California
	The National Ignition Facility (NIF) is a 192-beam laser system designed to study high energy density physics. Each beam line contains a variety of line replaceable units (LRUs) that include optics, stepping motors, sensors and other devices to control and diagnose the laser. During commissioning or subsequent maintenance of the laser, LRUs undergo a qualification process using the Integrated Computer Control System (ICCS) to verify and calibrate the equipment. The commissioning processes are both repetitive and tedious using remote manual computer controls, making them ideal candidates for software automation. Maintenance and Commissioning Tool (MCT) software was developed to improve the efficiency of the qualification process. The tools are implemented in Java, leveraging ICCS services and CORBA to communicate with the control devices. The framework provides easy-to-use mechanisms for handling configuration data, task execution, task progress reporting, and generation of commissioning test reports. The tool framework design and application examples will be discussed.

RPPA15	Initial Performance Results of the APS P0 Feedback System	controls, storage-ring, photon, single-bunch	550
	C. Yao, N. P. Di Monte ANL, Argonne, Illinois
	The Advanced Photon Source electron beam exhibits transverse instability when a large amount of charge is present in a single bunch. The P0 feedback system stabilizes the transverse motion of the beam under these circumstances. The initial requirement was to stabilize a single bunch of electrons in the horizontal plane. By implementing the stabilizer in an FPGA and using the parallel processing capabilities provided by this hardware, it is possible to stabilize 324 bunches per turn in both the horizontal and vertical planes. The stabilizer consists of 648 32-tap finite impulse response filters. This paper discusses the challenges in achieving this performance and some issues in interfacing to a Coldfire IOC running RTEMS. Initial test results of the system response are presented.

RPPA20	A Fast Orbit Feedback for the ELETTRA Storage Ring	controls, electron, injection, photon	558
	D. Bulfone, V. Forchi', G. Gaio, L. Pivetta, M. Lonza ELETTRA, Basovizza, Trieste
	A fast global orbit feedback using digital Beam Position Monitor (BPM) detectors has been installed and commissioned at Elettra. The system uses 96 BPMs and 82 steerer magnets to correct closed orbit errors at a 10-kHz repetition rate. The feedback processing is performed by twelve VME stations equipped with commercial CPU boards running the Linux operating system with real-time extension and connected to each other by a low-latency fiber optic network. The system is fully controlled by a Tango based control system. A number of diagnostic and visualization software tools have been developed to easily operate the feedback and detect anomalous sources of orbit distortion. The operational experience and the achieved results are presented. Plans for further improvements of orbit stability are also discussed.

RPPA23	Initial Design of a Global Fast Orbit Feedback System for the ALBA Synchrotron	vacuum, power-supply, electron, sextupole	561
	M. Munoz, D. B. Beltran ALBA, Bellaterra (Cerdanyola del Vallès)
	This paper presents the initial design of the Global Fast Orbit Feedback (FOFB) system for the ALBA Storage Ring. The FOFB system is designed to reach a submicron stability of the electron beam working at frequencies of at least 100 Hz. It compensates the small perturbations produced by vibrations, electromagnetic noise and changes in the gap or phase of the insertion devices, etc. A description of the model is shown. The different subsystems have been identified and modeled: the BPM processor, the iron lamination and the vacuum chamber. The power converter supplies for the correctors play an important role in the system, and they have been designed (strength, resolution, bandwidth, voltage output) accordingly with the FOFB requirements. We have also studied the latency of the system (communication network, processing times). The orbit correction is computed by a PID controller. The simulations of the closed loop response show a damping of the perturbation between 0 and 100 Hz, although the system also introduces a small amplification of the noise just after this bandwidth. Finally the paper presents the initial design of the hardware architecture of the FOFB system.

RPPA25	The Data Acquisition System (DAQ) of the FLASH Facility	photon, controls, monitoring, laser	564
	K. Rehlich, R. Rybnikov, R. Kammering DESY, Hamburg
	Nowadays the photon science experiments and the machines providing these photon beams produce enormous amounts of data. To capture the data from the photon science experiments and from the machine itself, we developed a novel Data AcQusition (DAQ) system for the FLASH (Free electron LASer in Hamburg) facility. Meanwhile the system is not only fully integrated into the DOOCS control system, but is also the core for a number of essential machine-related feedback loops and monitoring tasks. A central DAQ server records and stores the data of more than 900 channels with 1-MHz up to 2-GHz sampling and several images from the photon science experiments with a typical frame rate of 5 Hz. On this server all data are synchronized on a bunch basis which makes this the perfect location to attach, e.g., high-level feedbacks and calculations. An overview of the architecture of the DAQ system and its interconnections within the complex of the FLASH facility together with the status of the DAQ system and possible future extensions/applications will be given.

RPPA30	Drift Compensation for the SNS Laserwire	laser, controls, SNS, linac	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.

RPPA38	Fast Orbit Feedback System Upgrade in the TLS	power-supply, electron, controls, diagnostics	597
	J. Chen, K. T. Hsu, S. Y. Hsu, K. H. Hu, C. H. Kuo, D. Lee, P. C. Chiu NSRRC, Hsinchu
	Orbit feedback system of the Taiwan Light Source (TLS) has been deployed for a decade. The loop bandwidth was limited by existing hardware. The system cannot remove perturbation caused by fast source. To improve orbit feedback performance, BPM system and corrector power supply are planned to upgrade within a couples of years. New digital BPM electronics will enhance functionality of the BPM system and replace analogy type BPM but due to limited resource, the BPM system will be a mixed type at this moment. The corrector power-supply is also replaced by high performance switching type power supply with wide bandwidth in the same time. It is expected that our upgrade will significantly improve performance of fast orbit feedback.

RPPA39	Accelerator Trouble Ticket	controls, vacuum, linac, 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.

RPPB05	Applying Agile Project Management for Accelerator Controls Software	controls, laser, extraction, injection	612
	N. Stapley, W. Sliwinski CERN, Geneva
	Developing accelerator controls software is a challenging task requiring not only a thorough knowledge of the different aspects of particle accelerator operations, but also application of good development practices and robust project management tools. Thus, there was a demand for a complete environment for both developing and deploying accelerator controls software, as well as the tools to manage the whole software life cycle. As an outcome, a versatile development process was formulated, covering the controls software life cycle from the inception phase up to the release and deployment of the deliverables. A development environment was created providing management tools that standardize the common infrastructure for all the concerned projects; help to organize work within project teams; ease the process of versioning and releasing; and provide an easy integration of the test procedures and quality assurance reports. Change management and issue tracking are integrated with the development process and supported by the dedicated tools. This approach was successfully applied for all the new controls software for LEIR, SPS, LHC, injection lines, and CNGS extraction.

RPPB07	The System Overview Tool of the Joint Controls Project (JCOP) Framework	controls, monitoring, diagnostics, power-supply	618
	M. Gonzalez-Berges, F. Varela CERN, Geneva K. D. Joshi BARC, Mumbai
	For each control system of the Large Hadron Collider (LHC) experiments, there will be many processes spread over many computers. All together, they will form a PVSS distributed system with around 150 computers organized in a hierarchical fashion. A centralized tool has been developed for supervising, error identification and troubleshooting in such a large system. A quick response to abnormal situations will be crucial to maximize the physics usage. The tool gathers data from all the systems via several paths (e.g., process monitors, internal database) and, after some processing, presents it in different views: hierarchy of systems, host view and process view. The relations between the views are added to help to understand complex problems that involve more than one system. It is also possible to filter the information presented to the shift operator according to several criteria (e.g. node, process type, process state). Alarms are raised when undesired situations are found. The data gathered is stored in the historical archive for further analysis. Extensions of the tool are under development to integrate information coming from other sources (e.g., operating system, hardware).

RPPB23	SCORE – A Save, Compare, and Restore Application for Snapshotting Machine Settings	SNS, power-supply, linac, 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.

FOPA01	Future of Tango	controls, synchrotron, monitoring, instrumentation	723
	A. Buteau, N. L. Leclercq, M. O. Ounsy SOLEIL, Gif-sur-Yvette J. M. Chaize, J. M. Meyer, F. Poncet, E. T. Taurel, P. V. Verdier, A. Gotz ESRF, Grenoble D. Fernandez-Carreiras, J. Klora ALBA, Bellaterra (Cerdanyola del Vallès) T. Kracht DESY, Hamburg M. Lonza, C. Scafuri ELETTRA, Basovizza, Trieste
	Tango is a control system based on the device server concept. It is currently being actively developed by 4 (soon 5) institutes, 3 of which are new institutes. In October 2006 the Tango community met in the French Alps to discuss the future evolution of Tango. This paper summarizes the fruits of this meeting. It presents the different areas Tango will concentrate on for the next 5 years. Some of the main topics concern services, beamline control, embedded systems on FPGA, 64-bit support, scalability for large systems, faster boot performance, enhanced Python and Java support for servers, more model-driven development, and integrated workbench-like applications. The aim is to keep on adding batteries to Tango so that it remains a modern, powerful control system that satisfies not only the needs of light-source facilities but other communities too.
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