Keyword: diagnostics
Paper Title Other Keywords Page
MOMMU012 A Digital Base-band RF Control System controls, FPGA, operation, software 82
  • M. Konrad, U. Bonnes, C. Burandt, R. Eichhorn, J. Enders, N. Pietralla
    TU Darmstadt, Darmstadt, Germany
  Funding: Supported by DFG through CRC 634.
The analog RF control system of the S-DALINAC has been replaced by a new digital system. The new hardware consists of an RF module and an FPGA board that have been developed in-house. A self-developed CPU implemented in the FPGA executing the control algorithm allows to change the algorithm without time-consuming synthesis. Another micro-controller connects the FPGA board to a standard PC server via CAN bus. This connection is used to adjust control parameters as well as to send commands from the RF control system to the cavity tuner power supplies. The PC runs Linux and an EPICS IOC. The latter is connected to the CAN bus with a device support that uses the SocketCAN network stack included in recent Linux kernels making the IOC independent of the CAN controller hardware. A diagnostic server streams signals from the FPGAs to clients on the network. Clients used for diagnosis include a software oscilloscope as well as a software spectrum analyzer. The parameters of the controllers can be changed with Control System Studio. We will present the architecture of the RF control system as well as the functionality of its components from a control system developers point of view.
slides icon Slides MOMMU012 [0.087 MB]  
poster icon Poster MOMMU012 [33.544 MB]  
MOPKS004 NSLS-II Beam Diagnostics Control System controls, interface, electronics, timing 168
  • Y. Hu, L.R. Dalesio, K. Ha, O. Singh, H. Xu
    BNL, Upton, Long Island, New York, USA
  A correct measurement of NSLS-II beam parameters (beam position, beam size, circulating current, beam emittance, etc.) depends on the effective combinations of beam monitors, control and data acquisition system and high level physics applications. This paper will present EPICS-based control system for NSLS-II diagnostics and give detailed descriptions of diagnostics controls interfaces including classifications of diagnostics, proposed electronics and EPICS IOC platforms, and interfaces to other subsystems. Device counts in diagnostics subsystems will also be briefly described.  
poster icon Poster MOPKS004 [0.167 MB]  
MOPKS010 Fast Orbit Correction for the ESRF Storage Ring FPGA, feedback, controls, operation 177
  • J.M. Koch, F. Epaud, E. Plouviez, K.B. Scheidt
    ESRF, Grenoble, France
  Up to now, at the ESRF, the correction of the orbit position has been performed with two independent systems: one dealing with the slow movements and one correcting the motion in a range of up to 200Hz but with a limited number of fast BPMs and steerers. These latter will be removed and one unique system will cover the frequency range from DC to 200Hz using all the 224 BPMs and the 96 steerers. Indeed, thanks to the procurement of Libera Brilliance units and the installation of new AC power supplies, it is now possible to access all the Beam positions at a frequency of 10 kHz and to drive a small current in the steerers in a 200Hz bandwidth. The first tests of the correction of the beam position have been performed and will be presented. The data processing will be presented as well with a particular emphasis on the development inside the FPGA.  
MOPKS015 Diagnostics Control Requirements and Applications at NSLS-II controls, feedback, injection, emittance 192
  • Y. Hu, L.R. Dalesio, K. Ha, O. Singh
    BNL, Upton, Long Island, New York, USA
  To measure various beam parameters such as beam position, beam size, circulating current, beam emittance, etc., a variety of diagnostic monitors will be deployed at NSLS-II. The Diagnostics Group and the Controls Group are working together on control requirements for the beam monitors. The requirements are originated from and determined by accelerator physics. An attempt of analyzing and translating physics needs into control requirements is made. The basic functionalities and applications of diagnostics controls are also presented.  
poster icon Poster MOPKS015 [0.142 MB]  
MOPMN008 LASSIE: The Large Analogue Signal and Scaling Information Environment for FAIR controls, timing, detector, data-acquisition 250
  • T. Hoffmann, H. Bräuning, R. Haseitl
    GSI, Darmstadt, Germany
  At FAIR, the Facility for Antiproton and Ion Research, several new accelerators such as the SIS 100, HESR, CR, the inter-connecting HEBT beam lines, S-FRS and experiments will be built. All of these installations are equipped with beam diagnostic devices and other components which deliver time-resolved analogue signals to show status, quality, and performance of the accelerators. These signals can originate from particle detectors such as ionization chambers and plastic scintillators, but also from adapted output signals of transformers, collimators, magnet functions, RF cavities, and others. To visualize and precisely correlate the time axis of all input signals a dedicated FESA based data acquisition and analysis system named LASSIE, the Large Analogue Signal and Scaling Information Environment, is under way. As the main operation mode of LASSIE, pulse counting with adequate scaler boards is used, without excluding enhancements for ADC, QDC, or TDC digitization in the future. The concept, features, and challenges of this large distributed DAQ system will be presented.  
poster icon Poster MOPMN008 [7.850 MB]  
MOPMS018 New Timing System Development at SNS timing, hardware, operation, network 358
  • D. Curry
    ORNL RAD, Oak Ridge, Tennessee, USA
  • X.H. Chen, R. Dickson, S.M. Hartman, D.H. Thompson
    ORNL, Oak Ridge, Tennessee, USA
  • J. Dedič
    Cosylab, Ljubljana, Slovenia
  The timing system at the Spallation Neutron Source (SNS) has recently been updated to support the long range production and availability goals of the facility. A redesign of the hardware and software provided us with an opportunity to significantly reduce the complexity of the system as a whole and consolidate the functionality of multiple cards into single units eliminating almost half of our operating components in the field. It also presented a prime opportunity to integrate new system level diagnostics, previously unavailable, for experts and operations. These new tools provide us with a clear image of the health of our distribution links and enhance our ability to quickly identify and isolate errors.  
MOPMS035 A Beam Profiler and Emittance Meter for the SPES Project at INFN-LNL EPICS, emittance, software, ion 412
  • G. Bassato, A. Andrighetto, N. Conforto, M.G. Giacchini, J.A. Montano, M. Poggi, J.A. Vásquez
    INFN/LNL, Legnaro (PD), Italy
  The beam diagnostics system currently in use at LNL in the superconducting Linac has been upgraded for the SPES project. The control software has been rewritten using EPICS tools and a new emittance meter has been developed. The beam detector is based on wire grids, the IOC is implemented in a VME system running under Vxworks and the graphic interface is based on CSS. The system is now in operation in the SPES Target Laboratory for the characterization of beams produced by the new ion source.  
poster icon Poster MOPMS035 [0.367 MB]  
MOPMU025 The Implementation of the Spiral2 Injector Control System EPICS, controls, emittance, software 491
  • F. Gougnaud, J.F. Denis, J.-F. Gournay, Y. Lussignol, P. Mattei, R. Touzery
    CEA/DSM/IRFU, France
  • P. Gillette, C.H. Haquin
    GANIL, Caen, France
  • J.H. Hosselet, C. Maazouzi
    IPHC, Strasbourg Cedex 2, France
  The EPICS framework was chosen for the Spiral2 project control system [1] in 2007. Four institutes are involved in the command control: Ganil (Caen), IPHC (Strasbourg) and IRFU (Saclay) and LPSC (Grenoble), the IRFU institute being in charge of the Injector controls. This injector includes two ECR sources (one for deuterons and one for A/q= 3 ions) with their associated low-energy beam transport lines (LEBTs). The deuteron source is installed at Saclay and the A/q=3 ion source at Grenoble. Both lines will merge before injecting beam in a RFQ cavity for pre acceleration. This paper presents the control system for both injector beamlines with their diagnostics (Faraday cups, ACCT/DCCT, profilers, emittancemeters) and slits. This control relies on COTS VME boards and an EPICS software platform. Modbus/TCP protocol is also used with COTS devices like power supplies and Siemens PLCs. The Injector graphical user interface is based on Edm while the port to CSS BOY is under evaluation; also high level applications are developed in Java. This paper also emphasizes the EPICS development for new industrial VME boards ADAS ICV108/178 with a sampling rate ranging from 100 K Samples/s to 1.2 M Samples/s. This new software is used for the beam intensity measurement by diagnostics and the acquisition of sources.
[1] Overview of the Spiral2 control system progress E. Lécorché & al (Ganil/CAEN),this conference.
poster icon Poster MOPMU025 [1.036 MB]  
TUBAUST01 FPGA-based Hardware Instrumentation Development on MAST FPGA, controls, plasma, hardware 544
  • B.K. Huang, R.M. Myers, R.M. Sharples
    Durham University, Durham, United Kingdom
  • N. Ben Ayed, G. Cunningham, A. Field, S. Khilar, G.A. Naylor
    CCFE, Abingdon, Oxon, United Kingdom
  • R.G.L. Vann
    York University, Heslington, York, United Kingdom
  Funding: This work was part-funded by the RCUK Energy Programme under grant EP/I501045 and the European Communities under the Contract of Association between EURATOM and CCFE.
On MAST (the Mega Amp Spherical Tokamak) at Culham Centre for Fusion Energy some key control systems and diagnostics are being developed and upgraded with FPGA hardware. FPGAs provide many benefits including low latency and real-time digital signal processing. FPGAs blur the line between hardware and software. They are programmed (in VHDL/Verilog language) using software, but once configured act deterministically as hardware. The challenges in developing a system are keeping up-front and maintenance costs low, and prolonging the life of the device as much as possible. We accomplish lower costs by using industry standards such as the FMC (FPGA Mezzanine Card) Vita 57 standard and by using COTS (Commercial Off The Shelf) components which are significantly less costly than developing them in-house. We extend the device operational lifetime by using a flexible FPGA architecture and industry standard interfaces. We discuss the implementation of FPGA control on two specific systems on MAST. The Vertical Stabilisation system comprises of a 1U form factor box with 1 SP601 Spartan6 FPGA board, 10/100 Ethernet access, Microblaze processor, 24-bit σ delta ADS1672 ADC and ATX power supply for remote power cycling. The Electron Bernstein Wave system comprises of a 4U form factor box with 2 ML605 Virtex6 FPGA boards, Gigabit Ethernet, Microblaze processor and 2 FMC108 ADC providing 16 Channels with 14-bit at 250MHz. AXI4 is used as the on chip bus between firmware components to allow very high data rates which has been tested at over 40Gbps streaming into a 2GB DDR3 SODIMM.
slides icon Slides TUBAUST01 [8.172 MB]  
TUCAUST05 New Development of EPICS-based Data Acquisition System for Millimeter-wave Interferometer in KSTAR Tokamak plasma, data-acquisition, operation, EPICS 577
  • T.G. Lee, Y.U. Nam, M.K. Park
    NFRI, Daejon, Republic of Korea
  After achievement of first plasma in 2008, Korea Superconducting Tokamak Advanced Research (KSTAR) is going to be performed in the 4nd campaign in 2011. During the campaigns, many diagnostic devices have been installed for measuring the various plasma properties in the KSTAR tokamak. From the first campaign, a data acquisition system of Millimeter-wave interferometer (MMWI) has been operated to measure the plasma electron density. The DAQ system at the beginning was developed for three different diagnostics having similar channel characteristics with a VME-form factor housing three digitizers in Linux OS platform; MMWI, H-alpha and ECE radiometer. However, this configuration made some limitations in operation although it had an advantage in hardware utilization. It caused unnecessarily increasing data acquired from the other diagnostics when one of them operated at higher frequency. Moreover, faults in a digitizer led to failure in data acquisition of the other diagnostics. In order to overcome these weak points, a new MMWI DAQ system is under development with a PXI-form factor in Linux OS platform and main control application is going to be developed based on EPICS framework like other control systems installed in KSTAR. It also includes MDSplus interface for the pulse-based archiving of experimental data. Main advantages of the new MMWI DAQ system besides solving the described problems are capabilities of calculating plasma electron density during plasma shot and display it in run-time. By this the data can be provided to users immediately after archiving in MDSplus DB.  
slides icon Slides TUCAUST05 [1.724 MB]  
WEBHMUST01 The MicroTCA Acquisition and Processing Back-end for FERMI@Elettra Diagnostics controls, interface, FEL, timing 634
  • A.O. Borga, R. De Monte, M. Ferianis, G. Gaio, L. Pavlovič, M. Predonzani, F. Rossi
    ELETTRA, Basovizza, Italy
  Funding: The work was supported in part by the Italian Ministry of University and Research under grants FIRB-RBAP045JF2 and FIRB-RBAP06AWK3
Several diagnostics instruments for the FERMI@Elettra FEL require accurate readout, processing, and control electronics; together with a complete integration within the TANGO control system. A custom developed back-end system, compliant to the PICMG MicroTCA standard, provides a robust platform for accommodating such electronics; including reliable slow control and monitoring infrastructural features. Two types of digitizer AMCs have been developed, manufactured, tested and successfully commissioned in the FERMI facility. The first being a fast (160Msps) and high-resolution (16 bits) Analog to Digital and Digital to Analog (A|D|A) Convert Board, hosting 2 A-D and 2 D-A converters controlled by a large FPGA (Xilinx Virtex-5 SX50T) responsible also for the fast communication interface handling. The latter being an Analog to Digital Only (A|D|O), derived from A|D|A, with an analog front-side stage made of 4 A-D converters. A simple MicroTCA Timing Central Hub (MiTiCH) completes the set of modules necessary for operating the system. Several TANGO servers and panels have been developed and put in operation with the support of the controls group. The overall system's architectures, with different practical application examples, together with the specific AMCs' functionalities, are presented. Impressions on our experience on the field using the novel MicroTCA standard are also discussed.
slides icon Slides WEBHMUST01 [2.715 MB]  
WEPKN014 NSLS-II Filling Pattern Measurement controls, EPICS, storage-ring, linac 735
  • Y. Hu, L.R. Dalesio, K. Ha, I. Pinayev
    BNL, Upton, Long Island, New York, USA
  Multi-bunch injection will be deployed at NSLS-II. High bandwidth diagnostic monitors with high-speed digitizers are used to measure bunch-by-bunch charge variation. The requirements of filling pattern measurement and layout of beam monitors are described. The evaluation results of commercial fast digitizer Agilent Acqiris and high bandwidth detector Bergoz FCT are presented.  
poster icon Poster WEPKN014 [0.313 MB]  
WEPMS023 ALBA Timing System - A Known Architecture with Fast Interlock System Upgrade timing, interlocks, booster, network 1024
  • O. Matilla, D.B. Beltrán, D.F.C. Fernández-Carreiras, J.J. Jamroz, J. Klora, J. Moldes, R. Suñé
    CELLS-ALBA Synchrotron, Cerdanyola del Vallès, Spain
  Like most of the newest synchrotron facilities the ALBA Timing System works on event based architecture. Its main particularity is that integrated with the Timing system a Fast Interlock System has been implemented which allows for an automated and synchronous reaction time from any-to-any point of the machine faster than 5μs. The list of benefits of combining both systems is large: very high flexibility, reuse of the timing actuators, direct synchronous output in different points of the machine reacting to an interlock, implementation of the Fast Interlock with very low cost increase as the timing optic fiber network is reused or the possibility of combined diagnostic tools implementation for triggers and interlocks. To enhance this last point a global timestamp of 8ns accuracy that could be used both for triggers and interlocks has been implemented. The system has been designed, installed and extensively used during the Storage Ring commissioning with very good results.  
poster icon Poster WEPMS023 [0.920 MB]  
WEPMS025 Low Current Measurements at ALBA controls, data-acquisition, TANGO, Ethernet 1032
  • J. Lidón-Simon, D.F.C. Fernández-Carreiras, J.V. Gigante, J.J. Jamroz, J. Klora, O. Matilla
    CELLS-ALBA Synchrotron, Cerdanyola del Vallès, Spain
  High accuracy low current readout is an extensively demanded technique in 3rd generation synchrotrons. Whether reading from scintillation excited large-area photodiodes for beam position measurement or out of gold meshes or metallic coated surfaces in drain-current based intensity monitors, low current measurement devices are an ubiquitous need both for diagnostics and data acquisition in today's photon labs. In order to tackle the problem of measuring from various sources of different nature and magnitude synchronously, while remaining flexible at the same time, ALBA has developed a 4 independent channel electrometer. It is based on transimpedance amplifiers and integrates high resolution ADC converters and an 10/100 Base-T Ethernet communication port. Each channel has independently configurable range, offset and low pass filter cut-off frequency settings and the main unit has external I/O to synchronize the data acquisition with the rest of the control system.  
poster icon Poster WEPMS025 [0.797 MB]  
THCHAUST04 Management of Experiments and Data at the National Ignition Facility laser, controls, target, experiment 1224
  • S.G. Azevedo, R.G. Beeler, R.C. Bettenhausen, E.J. Bond, A.D. Casey, H.C. Chandrasekaran, C.B. Foxworthy, M.S. Hutton, J.E. Krammen, J.A. Liebman, A.A. Marsh, T. M. Pannell, D.E. Speck, J.D. Tappero, A.L. Warrick
    LLNL, Livermore, California, USA
  Funding: This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
Experiments, or "shots", conducted at the National Ignition Facility (NIF) are discrete events that occur over a very short time frame (tens of ns) separated by hours. Each shot is part of a larger campaign of shots to advance scientific understanding in high-energy-density physics. In one campaign, energy from the 192-beam, 1.8-Megajoule pulsed laser in NIF will be used to implode a hydrogen-filled target to demonstrate controlled fusion. Each shot generates gigabytes of data from over 30 diagnostics that measure optical, x-ray, and nuclear phenomena from the imploding target. Because of the low duty cycle of shots, and the thousands of adjustments for each shot (target type, composition, shape; laser beams used, their power profiles, pointing; diagnostic systems used, their configuration, calibration, settings) it is imperative that we accurately define all equipment prior to the shot. Following the shot, and the data acquisition by the automatic control system, it is equally imperative that we archive, analyze and visualize the results within the required 30 minutes post-shot. Results must be securely stored, approved, web-visible and downloadable in order to facilitate subsequent publication. To-date NIF has successfully fired over 2,500 system shots, and thousands of test firings and dry-runs. We will present an overview of the highly-flexible and scalable campaign setup and management systems that control all aspects of the experimental NIF shot-cycle, from configuration of drive lasers all the way through presentation of analyzed results.
slides icon Slides THCHAUST04 [5.650 MB]  
FRAAULT04 Centralised Coordinated Control to Protect the JET ITER-like Wall. controls, plasma, real-time, operation 1293
  • A.V. Stephen, G. Arnoux, T. Budd, P. Card, R.C. Felton, A. Goodyear, J. Harling, D. Kinna, P.J. Lomas, P. McCullen, P.D. Thomas, I.D. Young, K-D. Zastrow
    CCFE, Abingdon, Oxon, United Kingdom
  • D. Alves, D.F. Valcárcel
    IST, Lisboa, Portugal
  • S. Devaux
    MPI/IPP, Garching, Germany
  • S. Jachmich
    RMA, Brussels, Belgium
  • A. Neto
    IPFN, Lisbon, Portugal
  Funding: This work was carried out within the framework of the European Fusion Development Agreement. This work was also part-funded by the RCUK Energy Programme under grant EP/I501045.
The JET ITER-like wall project replaces the first wall carbon fibre composite tiles with beryllium and tungsten tiles which should have improved fuel retention characteristics but are less thermally robust. An enhanced protection system using new control and diagnostic systems has been designed which can modify the pre-planned experimental control to protect the new wall. Key design challenges were to extend the Level-1 supervisory control system to allow configurable responses to thermal problems to be defined without introducing excessive complexity, and to integrate the new functionality with existing control and protection systems efficiently and reliably. Alarms are generated by the vessel thermal map (VTM) system if infra-red camera measurements of tile temperatures are too high and by the plasma wall load system (WALLS) if component power limits are exceeded. The design introduces two new concepts: local protection, which inhibits individual heating components but allows the discharge to proceed, and stop responses, which allow highly configurable early termination of the pulse in the safest way for the plasma conditions and type of alarm. These are implemented via the new real-time protection system (RTPS), a centralised controller which responds to the VTM and WALLS alarms by providing override commands to the plasma shape, current, density and heating controllers. This paper describes the design and implementation of the RTPS system which is built with the Multithreaded Application Real-Time executor (MARTe) and will present results from initial operations.
slides icon Slides FRAAULT04 [2.276 MB]