Author: Heron, M.T.
Paper Title Page
MOCAUIO04 The SESAME Project 31
  • A. Nadji, S. Abu Ghannam, Z. Qazi, I. Saleh
    SESAME, Amman, Jordan
  • P. Betinelli-Deck, L.S. Nadolski
    SOLEIL, Gif-sur-Yvette, France
  • J.-F. Gournay
    CEA/IRFU, Gif-sur-Yvette, France
  • M.T. Heron
    Diamond, Oxfordshire, United Kingdom
  • H. Hoorani
    NCP, Islamabad, Pakistan
  • B. Kalantari
    PSI, Villigen, Switzerland
  • E. D. Matias, G. Wright
    CLS, Saskatoon, Saskatchewan, Canada
  SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) is a third generation synchrotron light source under construction near Amman (Jordan), which is expected to begin operation in 2015. SESAME will foster scientific and technological excellence in the Middle East and the Mediterranean region, build scientific bridges between neighbouring countries and foster mutual understanding through international cooperation. The members of SESAME are currently Bahrain, Cyprus, Egypt, Iran, Israel, Jordan, Pakistan, the Palestinian Authority and Turkey. An overview about the progress of the facility and the general plan will be given in this talk. Then I will focus on the control system by explaining how this part is managed: the technical choice, the main deadlines, the local staff, the international virtual control team, and the first results.  
slides icon Slides MOCAUIO04 [8.526 MB]  
MOPKN006 Algorithms and Data Structures for the EPICS Channel Archiver 94
  • J. Rowland, M.T. Heron, M.A. Leech, S.J. Singleton, K. Vijayan
    Diamond, Oxfordshire, United Kingdom
  Diamond Light Source records 3GB of process data per day and has a 15TB archive on line with the EPICS Channel Archiver. This paper describes recent modifications to the software to improve performance and usability. The file-size limit on the R-Tree index has been removed, allowing all archived data to be searchable from one index. A decimation system works directly on compressed archives from a backup server and produces multi-rate reduced data with minimum and maximum values to support time efficient summary reporting and range queries. The XMLRPC interface has been extended to provide binary data transfer to clients needing large amounts of raw data.  
poster icon Poster MOPKN006 [0.133 MB]  
MOPKS001 Diamond Light Source Booster Fast Orbit Feedback System 160
  • S. Gayadeen, S. Duncan
    University of Oxford, Oxford, United Kingdom
  • C. Christou, M.T. Heron, J. Rowland
    Diamond, Oxfordshire, United Kingdom
  The Fast Orbit Feedback system that has been installed on the Diamond Light Source Storage ring has been replicated on the Booster synchrotron in order to provide a test bed for the development of the Storage Ring controller design. To realise this the Booster is operated in DC mode. The electron beam is regulated in two planes using the Fast Orbit Feedback system, which takes the beam position from 22 beam position monitors for each plane, and calculates offsets to 44 corrector power supplies at a sample rate of 10~kHz. This paper describes the design and realization of the controller for the Booster Fast Orbit Feedback, presents results from the implementation and considers future development.  
poster icon Poster MOPKS001 [0.597 MB]  
MOPKS027 Operational Status of theTransverse Multibunch Feedback System at Diamond 219
  • I. Uzun, M.G. Abbott, M.T. Heron, A.F.D. Morgan, G. Rehm
    Diamond, Oxfordshire, United Kingdom
  A transverse multibunch feedback (TMBF) system is in operation at Diamond Light Source to damp coupled-bunch instabilities up to 250 MHz in both the vertical and horizontal planes. It comprises an in-house designed and built analogue front-end combined with a Libera Bunch-by-Bunch feedback processor and output stripline kickers. FPGA-based feedback electronics is used to implement several diagnostic features in addition to the basic feedback functionality. This paper reports on the current operational status of the TMBF system along with its characteristics. Also discussed are operational diagnostic functionalities including continuous measurement of the betatron tune and chromaticity.  
poster icon Poster MOPKS027 [1.899 MB]  
MOPMU009 The Diamond Control System: Five Years of Operations 442
  • M.T. Heron
    Diamond, Oxfordshire, United Kingdom
  Commissioning of the Diamond Light Source accelerators began in 2005, with routine operation of the storage ring commencing in 2006 and photon beamline operation in January 2007. Since then the Diamond control system has provided a single interface and abstraction to (nearly) all the equipment required to operate the accelerators and beamlines. It now supports the three accelerators and a suite of twenty photon beamlines and experiment stations. This paper presents an analysis of the operation of the control system and further considers the developments that have taken place in the light of operational experience over this period.  
TUAAUST01 GDA and EPICS Working in Unison for Science Driven Data Acquisition and Control at Diamond Light Source 529
  • E.P. Gibbons, M.T. Heron, N.P. Rees
    Diamond, Oxfordshire, United Kingdom
  Diamond Light Source has recently received funding for an additional 10 photon beamlines, bringing the total to 32 beamlines and around 40 end-stations. These all use EPICS for the control of the underlying instrumentation associated with photon delivery, the experiment and most of the data acquisition hardware. For the scientific users Diamond has developed the Generic Data Acquisition (GDA) application framework to provide a consistent science interface across all beamlines. While each application is customised to the science of its beamline, all applications are built from the framework and predominantly interface to the underlying instrumentation through the EPICS abstraction. We will describe the complete system, illustrate how it can be configured for a specific beamline application, and how other synchrotrons are, and can, adapt these tools for their needs.  
slides icon Slides TUAAUST01 [9.781 MB]  
WEPMU003 The Diamond Machine Protection System 1051
  • M.T. Heron, Y.S. Chernousko, P. Hamadyk, S.C. Lay, N. Rotolo
    Diamond, Oxfordshire, United Kingdom
  Funding: Diamond Light Source LTD
The Diamond Light Source Machine Protection System manages the hazards from high power photon beams and other hazards to ensure equipment protection on the booster synchrotron and storage ring. The system has a shutdown requirement, on a beam mis-steer, of under 1msec and has to manage in excess of a thousand interlocks. This is realised using a combination of bespoke hardware and programmable logic controllers. The structure of the Machine Protection System will be described, together with operational experience and developments to provide post-mortem functionality.
poster icon Poster WEPMU003 [0.694 MB]