ICALEPCS07 - List of Keywords (laser)

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laser

Paper	Title	Other Keywords	Page
MOAB01	The Status of the LHC Controls System Shortly Before Injection of Beam	controls, diagnostics, monitoring, cryogenics	5
	P. Charrue, H. Schmickler CERN, Geneva
	At the time of the ICALEPCS 2007 conference, the LHC main accelerator will be close to its final state of installation, and major components will have passed the so-called “hardware commissioning.” In this paper the requirements and the main components of the LHC control system will be described very briefly. Out of its classical 3-tier architecture, those solutions will be presented, which correspond to major development work done here at CERN. Focus will be given to the present status of these developments and to lessons learned in the past months.
	Slides

MOAB02	The Laser Megajoule Facility: Control System Status Report	controls, target, diagnostics, feedback	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, feedback, 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

MOPB05	"JDDD": A Java DOOCS Data Display for the XFEL	controls, free-electron-laser, alignment, radiation	43
	A. Petrosyan, K. Rehlich, P. Tege, E. Sombrowski DESY, Hamburg
	The X-ray Free-Electron Laser (XFEL) is a new accelerator currently under construction at DESY. It will be a powerful X-ray source for many scientific disciplines ranging from physics, chemistry, and biology to material sciences, geophysics, and medical diagnostics. The commissioning is planned in 2014, and the preparation of the control system was started. The XFEL makes high demands on the control system and its user interface. For this reason jddd, a new Java Data Display program for the Distributed Object-Oriented Control System (DOOCS), has been developed. jddd is a graphical editor for designing and running control panels. The editors functionality is similar to standard IDEs like NetBeans or Eclipse. Complex control panels can easily be created without programming. jddd offers all components needed for control panel design. The Components are reusable Java Beans like labels, buttons, plots, and complex dynamic components as Switches. The jddd panel structure is stored in an xml format. jddd is a further development of the DOOCS data display (ddd) program. For compatibility reasons the old ddd storage format can be converted to the new jddd xml format.
	Slides

TOAA04	Status of the FLASH Free Electron Laser Control System	controls, feedback, 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	controls, site, feedback, 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	controls, injection, vacuum, feedback	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

TPPA26	User Interface Framework for the National Ignition Facility (NIF)	controls, extraction, focusing	146
	G. A. Bowers, R. W. Carey, S. A. Daveler, K. B. Herndon Ford, J. C. Ho, L. J. Lagin, C. J. Lambert, J. Mauvais, E. A. Stout, S. L. West, J. M. Fisher LLNL, Livermore
	A user interface (UI) framework supports the development of graphical operator controls for the National Ignition Facility (NIF) Integrated Computer Control System (ICCS). The framework simplifies UI coding and ensures consistency for system operators across all NIF subsystems. A comprehensive, layered collection of UIs provides interaction with service-level frameworks, shot automation, and subsystem-specific devices. All user interfaces are written in Java and employ CORBA to interface to other ICCS components. Developers use the framework to compose two major types of user interfaces for broad-views and control panels. Broad-views provide a visual representation of NIF beamlines through interactive schematic drawings. Control panels present status and control at the device level. The UI framework provides a suite of display components that standardize user interaction through data entry behaviors, common connection and threading mechanisms, and a common appearance. With these components, developers can address pattern usability issues in the facility when needed. The UI framework helps developers create consistent and easy-to-understand user interfaces for NIF operators.

TPPA29	Interfacing of Peripheral Systems to EPICS Using Shared Memory	controls, diagnostics, SNS, monitoring	152
	E. Tikhomolov TRIUMF, Vancouver
	Interfacing of peripheral control and data acquisition systems to an EPICS-based control system is a common problem. At the ISAC radioactive beam facility, both Linux-based and Windows-based systems were integrated using the “soft” IOC, which became available in EPICS release 3.14. For Linux systems, shared memory device support was implemented using standard Linux functions. For Windows-based RF control systems, the “soft” IOC runs as a separate application, which uses shared memory for data exchange with the RF control applications. A set of DLLs exposes an API for use by the application programmer. Additional features include alarm conditions for read-back updates, watchdogs for each running application, and test channels.

TPPB01	The PHELIX Control System Based on CS-Framework 3.0	controls, booster, heavy-ion, pulsed-power	163
	D. B. Beck, S. Goette, H. Brand GSI, Darmstadt M. Kugler H_DA, Darmstadt
	The Petawatt High Energy Laser for Ion eXperiments, http://www.gsi.de/forschung/phelix/index_e.html, will offer the unique combination of a high-current, high-energy (GeV/u) heavy-ion beam with a powerful laser beam thus providing the opportunity to investigate a variety of fundamental science issues in the field of atomic physics, nuclear physics, and plasma physics. The PHELIX Control System (PCS) is based on the CS framework, http://wiki.gsi.de/cgi-bin/view/CSframework/WebHome. About 35 additional classes were developed for the PCS and ~250 objects are running distributed on 13 PCs publishing ~10000 process variables. The PCS has been upgraded to version 3.0 recently. In CS 3.0 the entire communication layer has been changed to DIM (Distributed Information Management), which is a light weight protocol for inter-process communication based on TCP/IP, http://www.cern.ch/dim. The PCS was redesigned to make use and profit from the concept of named services. Clients may receive information from a service (observer pattern) or may send a command to a server (command pattern). By these means the implementation of the PCS behaviour with hierarchical state machines was eased.

TPPB10	Target Diagnostic Instrument-Based Controls Framework for the National Ignition Facility (NIF)	diagnostics, controls, target, power-supply	184
	J. H. Kamperschroer, J. R. Nelson, D. W. O'Brien, R. T. Shelton LLNL, Livermore
	The extreme physics of targets shocked by NIF’s 192-beam laser are observed by a diverse suite of diagnostics including optical backscatter, time-integrated and gated X-ray sensors, and laser velocity interferometry. Diagnostics for fusion ignition are being planned. Many diagnostics are developed at other sites, but ad hoc controls could prove costly or unreliable. The instrument-based controls (IBC) framework facilitates development and eases integration. Each diagnostic typically uses an ensemble of electronic instruments attached to sensors, digitizers, and other devices. Each individual instrument is interfaced to a low-cost WindowsXP processor and Java application. Instruments are aggregated as needed in the supervisory system to form the integrated diagnostic. Java framework software provides data management, control services, and operator GUIs. IBCs are reusable by replication and configured for specific diagnostics in XML. Advantages include small application codes, easy testing, and better reliability. Collaborators save costs by reusing IBCs. This talk discusses target diagnostic instrumentation used on NIF and presents the IBC architecture and framework.

TPPB13	The Detector Control System for the Electromagnetic Calorimeter of the CMS Experiment at LHC	controls, monitoring, radiation, power-supply	190
	P. Adzic, P. Milenovic, P. Milenovic VINCA, Belgrade A. B. Brett, G. Dissertori, G. Leshev, T. Punz ETH, Zürich D. Di Calafiori UERJ, Rio de Janeiro R. Gomez-Reino, R. Ofierzynski CERN, Geneva A. Inyakin, S. Zelepoukine IHEP Protvino, Protvino, Moscow Region D. Jovanovic, J. Puzovic Faculty of Physics, Belgrade
	The successful achievement of many physics goals of the CMS experiment required the design of an electromagnetic calorimeter (ECAL) with an excellent energy and angular resolution. The choice of the scintillating crystals, photodetectors, and front-end readout electronics of the ECAL has been made according to these criteria. However, certain characteristics of the chosen components imposed challenging constraints on the design of the ECAL, such as the need for rigorous temperature and high voltage stability. For this reason an ECAL Detector Control System (DCS) had to be carefully designed. In this presentation we describe the main DCS design objectives, the detailed specifications, and the final layout of the system. Emphasis is put on the system implementation and its specifc hardware and software solutions. The latest results from final system prototype tests in the 2006 ECAL test-beam program, as well as the system installation and commissioning at the CMS experimental construction site, are also discussed.

TPPB38	Status of the ERLP Control System	controls, cathode, linac, 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.

WOAB02	CAD Model and Visual Assisted Control System for NIF Target Area Positioners	controls, target, alignment, simulation	293
	T. S. Paik, E. F. Wilson, E. A. Tekle LLNL, Livermore
	The National Ignition Facility (NIF) contains precision motion control systems that reach up to 6 meters into the target chamber for handling targets and diagnostics. Systems include the target positioner, an alignment sensor, and diagnostic manipulators. Experiments require a variety of arrangements near chamber center to be aligned to an accuracy of 10 micrometers. These devices are some of the largest in NIF, and they require careful monitoring and control in three dimensions to prevent interferences. Alignment techniques such as viewing target markers and cross-chamber telescopes are employed. Positioner alignment is a human-control process incorporating real-time video feedback on the user interface. The system provides efficient, flexible controls while also coordinating all positioner movements. This is accomplished through advanced video-control integration incorporating remote position sensing and real-time analysis of a CAD model of target chamber devices. This talk discusses the control system design, the method used to integrate existing mechanical CAD models, and the offline test laboratory used to verify proper operation of the integrated control system.
	Slides

WOAB03	Development of Accelerator Management Systems with GIS	free-electron-laser, site, electron, controls	296
	Y. Ishizawa, A. Yamashita JASRI/SPring-8, Hyogo-ken
	We have been developing accelerator management systems for SPring-8 on Geographic Information System (GIS). Those systems are, in short, "Google maps for accelerators". Users enjoy interactive acclerator maps on web browsers with zooming, panning, ruler, image overlay and multi-layer display features. We applied an open-source GIS, MapServer, for the systems. We have build two web-based systems on MapServer. Accelerator inventory management system displays equipment locations on the map reading data from a relational database. It displays not only locations of equipment but also detailed attributes by clicking symbols on the interactive map. Users also can enter their own data or upload their own files from the web browser to store into the database. Another SCSS alarm system desplays real-time alarm locations on the map. The alarm database build on the MADOCA system serves real-time and static data for alarm display. We will show mechanism and development of those systems in the paper.
	Slides

WPPA21	DOOCS Camera System	diagnostics, controls, free-electron-laser, linac	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.

WPPA31	Status of a Versatile Video System at PITZ, DESY-2 and EMBL Hamburg	controls, diagnostics, electron, monitoring	380
	M. Lomperski, P. Duval DESY, Hamburg G. Trowitzsch, S. Weisse DESY Zeuthen, Zeuthen
	The market for industrial vision components is evolving towards GigE Vision (Gigabit Ethernet vision standard). In recent years, the usage of TV systems/optical readout at accelerator facilities has been increasing. The Video System at PITZ, originated in the year 2001, has overcome a huge evolution over the last years. Being real-time capable, lossless capable, versatile, well-documented, interoperable, and designed with the user's perspective in mind, use cases at Petra 3 and EMBL at DESY Hamburg have been implemented to great success. The wide use range spans from robotics to live monitoring up to precise measurements. The submission will show the hardware and software structure, components used, current status as well as a perspective for future work.

WPPB03	Software Interlocks System	controls, extraction, injection, diagnostics	403
	V. Baggiolini, D. Garcia Quintas, J. Wenninger, J. P. Wozniak CERN, Geneva
	In the year 2006, a first operational version of a new Java-based Software Interlock System (SIS) was introduced to protect parts of the SPS (Super Proton Synchrotron) complex, mainly CNGS (CERN Neutrinos to Gran Sasso), TI8 (SPS transfer line), and for some areas of the SPS ring. SIS protects the machine through surveillance and by analyzing the state of various key devices and dumping or inhibiting the beam if a potentially dangerous situation occurs. Being a part of the machine protection, it shall gradually replace the old SPS Software Interlock System (SSIS) and reach the final operational state targeting LHC (Large Hadron Collider) in 2008. The system, which was designed with the use of modern, state-of-the-art technologies, proved to be highly successful and very reliable from the very beginning of its existence. Its relatively simple and very open architecture allows for fast and easy configuration and extension to meet the demanding requirements of the forthcoming LHC era.

WPPB10	Virtually There: The Control Room of the Future	controls, linear-collider, collider, positron	418
	F. Bonaccorso, A. Busato, A. Curri, D. Favretto, M. Prica, M. Pugliese ELETTRA, Basovizza, Trieste
	Imagine the ILC is up and running. Electrons and positrons collide happily, and scientists are taking data. Suddenly there's a problem with one of the laser wires. All experts are at a meeting on a different continent, but the problem needs to be fixed immediately. Difficult? Not when there's a Global Accelerator Network Multipurpose Virtual Lab (GANMVL) in place. High-speed, high-resolution cameras would allow the faraway experts to look at the fault, a web-based portal would let them access the controls and tools of the system with a simple "single-sign-on" procedure. However, the virtual lab is not just about remote operation. In principle it is already possible to run a control room remotely. This system is radically different in that it takes into account the human aspect of teamwork around the world. The implications of a working virtual control room are enormous. It might revolutionise virtual collaboration in completely different areas. The paper presents the GANMVL tool and the results of the evaluation of the Virtual Lab in production environment and real operations. * http://www.eurotev.org/, “European Design Study Towards a Global TeV Linear Collider.” ** http://www.linearcollider.org/cms/, “International linear collider.”

ROAA02	Automatic Alignment System for the National Ignition Facility	controls, alignment, target, optics	486
	A. A.S. Awwal, S. W. Ferguson, B. Horowitz, V. J. Miller Kamm, C. A. Reynolds, K. C. Wilhelmsen LLNL, Livermore
	The Automatic Alignment System for the National Ignition Facility (NIF) is a large-scale parallel system that directs all 192 laser beams along the 300-m optical path to a 50-micron focus at target chamber in less than 30 minutes. The system commands 9,000 stepping motors to adjust mirrors and other optics. Twenty-two control loops per beamline request image processing services from a dedicated Linux cluster running Interactive Data Language tools that analyze high-resolution images of the beam and references. Process leveling assures the computational load is evenly spread. Algorithms also estimate measurement accuracy and reject off-normal images. One challenge to rapid alignment of beams in parallel is efficient coordination of shared devices, such as sensors that monitor multiple beams. Contention for shared resources is managed by the Component Mediation System, which precludes deadlocks and optimizes device motions using a hierarchical component structure. A reservation service provided by the software framework prevents interference from competing automated controls or the actions of system operators. The design, architecture and performance of the system will be discussed.
	Slides

ROAB01	Software Engineering Processes Used to Develop the NIF Integrated Computer Control System	controls, target, diagnostics, alignment	500
	R. W. Carey, R. D. Demaret, L. J. Lagin, U. P. Reddi, P. J. Van Arsdall, A. P. Ludwigsen LLNL, Livermore
	The National Ignition Facility (NIF) at Lawrence Livermore National Laboratory is a 192-beam laser facility for high-energy density physics experiments. NIF is operated by the Integrated Computer Control System (ICCS), which is comprised of 60,000 devices deployed on 850 computers. Software is constructed from an object-oriented framework based on CORBA distribution. ICCS is 85% complete, with over 1.5 million lines of verified code now deployed online. Success of this large-scale project was keyed to early adoption of rigorous software engineering practices, including architecture, code design, configuration management, product integration, and formal verification testing. Verification testing is performed in a dedicated test facility following developer integration. These processes are augmented by an overarching quality assurance program featuring assessment of quality metrics and corrective actions. Engineering processes are formally documented, and releases are managed by a change control board. This talk discusses software engineering and results obtained for the NIF control system.
	Slides

RPPA12	Process Control: Object Oriented Model for Offline Data	controls, instrumentation, cryogenics, free-electron-laser	541
	T. Boeckmann, M. R. Clausen, J. Hatje, H. R. Rickens, C. H. Gerke DESY, Hamburg
	Process control systems are primarily designed to handle online real-time data. But once the system has to be maintained over years of continuous operation, the aspects of asset management (e.g., spare parts) and reengineering (e.g., loading process computers and field bus processors with consistent data after modification of instrumentation) become more and more important. One way to get the necessary information is data mining in the running system. The other possibility is to collect all relevant information in a database from the beginning and build up configuration files from there. For the cryogenic systems in the XFEL, the planned x-ray free electron laser facility at DESY in Hamburg, Germany, EPICS will be used as the process control software. This talk will present the status of the development of our device database, which is to hold the offline data. We have chosen an approach representing the instrumentation and field bus components as objects in Java. The objects are made persistent in an Oracle database using Hibernate. The user interface will be implemented as a plugin to the control system studio CSS based on Eclipse.

RPPA14	Java Tool Framework for Automation of Hardware Commissioning and Maintenance Procedures	controls, alignment, optics, feedback	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.

RPPA19	Photon Diagnostic Station for TAC IR-FEL Test Facility	diagnostics, photon, undulator, electron	556
	I. Tapan UU, Bursa
	The Turkic Accelerator Center (TAC) project has been accepted by Turkish government. According to this project, a linac-based infrared oscillator free electron laser (FEL) will be constructed as a TAC test facility by the end of 2010. Planning work has been ongoing for the firt FEL facility building in Turkey. Both 20- and 40-MeV electron energies will be used to obtain infrared photons in the wavelength region of 1 to 100 micrometers. The IR FEL photons generated by two undulators will be transported through the respestive two photon beam lines to the experimental hall, where they are fed in to eight experimental station. Photon diagnostic station will be located in the experimental hall to measure the properties of the photon beam. In this work, the performance of the designed IR-FEL photon diagnostic station for the TAC test facility has been discussed.

RPPA25	The Data Acquisition System (DAQ) of the FLASH Facility	photon, controls, monitoring, feedback	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	feedback, 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.

RPPA35	The DIAMON Project – Monitoring and Diagnostics for the CERN Controls Infrastructure	diagnostics, controls, monitoring, power-supply	588
	M. Buttner, J. Lauener, K. Sigerud, M. Sobczak, N. Stapley, P. Charrue CERN, Geneva
	The CERN accelerators’ controls infrastructure spans over large geographical distances and accesses a big diversity of equipment. In order to ensure smooth beam operation, efficient monitoring and diagnostic tools are required by the operators, presenting the state of the infrastructure and offering guidance for the first line support. The DIAMON project intends to deploy software monitoring agents in the controls infrastructure, each agent running predefined local tests and sending its result to a central service. A highly configurable graphical interface will exploit these results and present the current state of the controls infrastructure. Diagnostic facilities to get further details on a problem and first aid to repair it will also be provided. This paper will describe the DIAMON project’s scope and objectives as well as the user requirements. Also presented will be the system architecture and the first operational version.

RPPB03	Alarms Configuration Management	controls, monitoring, vacuum, site	606
	R. Martini, K. Sigerud, N. Stapley, A. S. Suwalska, P. Sollander CERN, Geneva
	The LHC alarm service, LASER, is the alarm tool used by the operators for the accelerators and the technical services at CERN. To ensure that the alarms displayed are known and understood by the operators, each alarm should go through a well-defined procedure from its definition to being accepted in operation. In this paper we describe the workflow to define alarms for the technical services at CERN. We describe the different stages of the workflow like equipment definition, alarm information specification, control system configuration, test, and final acceptance in operation. We also describe the tools available to support each stage and the actors involved. Although the use of a strict workflow will limit the number of alarms that arrive to LASER and ensure that they are useful for operations, for a large complex like CERN there are still potentially many alarms displayed at one time. Therefore the LASER tool provides facilities for the operators to manage and reduce the list of alarms displayed. The most important of these facilities are described, together with other important services like automatic GSM and/or e-mail notification and alarm system monitoring.

RPPB05	Applying Agile Project Management for Accelerator Controls Software	controls, feedback, 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.

RPPB08	The Development of Detector Alignment Monitoring System for the ALICE ITS	alignment, monitoring, controls, collider	621
	M. G. Cherney, Y. N. Gorbunov, R. P. Thomen, J. Fujita Creighton University, Omaha, NE T. J. Humanic, B. S. Nilsen, J. Schley, D. Trusdale Ohio State University
	A real-time detector alignment monitoring system has been developed by using commodity USB cameras, spherical mirrors, and laser beams introduced via a single mode fiber. An innovative control and online analysis software has been developed by using the OpenCV (Open Computer Vision) library & PVSS (Prozessvisualisierungs- und Steuerungssystem). This system is being installed in the ALICE detector to monitor the position of ALICE's Inner Tracking System subdetector. The operational principle and software implementation will be described.

RPPB18	NIF ICCS Test Controller for Automated & Manual Testing	controls, alignment	641
	J. S. Zielinski LLNL, Livermore, California
	The NIF Integrated Computer Control System (ICCS) is a large-scale distributed system with 60,000 control points and 850 computers. The software engineering team delivers updates throughout the year to deliver new functionality for commissioning activities and automated shots. In 2006 there were 48 software releases, including 29 full releases and 19 patches resulting in a code base of 1.4 MSLOC. To ensure the quality of the delivered software, thousands of manual and automated regression and verification tests are performed on the code and GUIs using a Test Controller infrastructure developed by the test group. The infrastructure manages test case inventory, test planning, automated and manual test execution, and generation of test reports. A web browser interface provides test services, searchable test results and dynamic status reports to users. The Test Controller manages the three-stage quality control process of integration, offline and online testing, which assesses and assures the quality of each release. This talk will present the requirements, design and results of this comprehensive software testing infrastructure.

RPPB19	Electron Bunch Length Measurement for LCLS at SLAC	controls, linac, electron, 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.

FOAA02	Timing and LLRF System of Japanese XFEL to Realize Femto-Second Stability	acceleration, controls, klystron, linac	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.
	Slides

FOAB01	Imaging System Integration at the SNS	target, SNS, radiation, controls	714
	W. Blokland, K. C. Goetz, T. A. Pelaia, T. J. Shea ORNL, Oak Ridge, Tennessee
	Over the past several years, a variety of imaging systems have been deployed at Oak Ridge National Laboratory's (ORNL's) Spallation Neutron Source (SNS). The systems have supported accelerator instrumentation, neutron beam measurement, target commissioning, and laser diagnostics. For each application, performance requirements drove the choice of camera technology, and this naturally led to a variety of interfaces. This paper will describe the experience gained during the integration and operation of these systems. Several challenges will be highlighted, including algorithms for quantitative measurements, correlation with other accelerator data, real-time video distribution, and storage of large data sets. Although heterogeneous systems must continue to be deployed to meet imaging needs, some common tools and technologies have been identified and are expected to enhance system integration efforts.
	Slides

FOAB03	Ethernet Based Embedded IOC for FEL Control Systems	controls, diagnostics, electron, instrumentation	720
	A. C. Grippo, K. Jordan, S. W. Moore, D. W. Sexton, J. Yan Jefferson Lab, Newport News, Virginia
	An Ethernet-based embedded Input Output Controller (IOC) has been developed as part of an upgrade to the control system for the Free Electron Laser Project at Jefferson Lab. Currently most of the FEL systems are controlled, configured, and monitored using a central VME bus-based configuration. These crate-based systems are limited in growth and usually interleave multiple systems. In order to accommodate incremental system growth and lower channel costs, we developed a standalone system, an Ethernet-based embedded controller called the Single Board IOC (SBIOC). The SBIOC is a module that integrates an Altera FPGA and the Arcturus uCdimm Coldfire 5282 Microcontroller daughter card into one module, which can be easily configured for different kinds of I/O devices. The microcontroller is a complete System-on-Module, including highly integrated functional blocks. A real-time operating system, RTEMS, is cross-compiled with EPICS, allowing us to download the RTEMS kernel, IOC device supports, and databases into the microcontroller. This embedded IOC system has the features of a low-cost IOC, free open source RTOS, plug-and-play-like ease of installation, and flexibility.
	Slides