Author: Cobb, T.M.
Paper Title Page
MOPGF056 Synchronising High-Speed Triggered Image and Meta Data Acquisition for Beamlines 1
  • N. De Maio, A.P. Bark, T.M. Cobb, J.A. Thompson
    DLS, Oxfordshire, United Kingdom
  High-speed image acquisition is becoming more and more common on beamlines. As experiments increase in complexity, the need to record parameters related to the environment at the same time increases with them. As a result, conventional systems for combining experimental meta data and images often struggle to deliver at a speed and precision that would be desirable for the experiment. We describe an integrated solution that addresses those needs, overcoming the performance limitations of PV monitoring by combining hardware triggering of an ADC card, coordination of signals in a Zebra box* and three instances of area-Detector streaming to HDF5 data. This solution is expected to be appropriate for frame rates ranging from 30Hz to 1000Hz, with the limiting factor being the maximum speed of the camera. Conceptually, the individual data streams are arranged in pipelines controlled by a master Zebra box, expecting start/stop signals on one end and producing the data collections at the other. This design ensures efficiency on the acquisition side while allowing easy interaction with higher-level applications on the other.
*T. Cobb, Y. Chernousko, I. Uzun, ZEBRA: A Flexible Solution for Controlling Scanning Experiments, Proc. ICALEPCS13,
poster icon Poster MOPGF056 [0.451 MB]  
MOPGF098 PandA Motion Project - A Collaboration Between SOLEIL and Diamond to Upgrade Their 'Position and Acquisition' Processing Platform. 1
  • I.S. Uzun, T.M. Cobb, A.M. Cousins, M.T. Heron
    DLS, Oxfordshire, United Kingdom
  • Y.-M. Abiven, J. Bisou, P. Monteiro, G. Renaud
    SOLEIL, Gif-sur-Yvette, France
  Synchrotron SOLEIL and Diamond Light Source are two third generation light sources located respectively in France and the UK. In the past 5 years, both facilities separately developed their own platform permitting encoder processing to synchronize motion systems and acquisition during experiments, SPIETBOX by SOLEIL and Zebra by Diamond. New operational requirements for simultaneous and multi-technique scanning, and support of multiple encoder standards have been identified by both institutes. In order to address these a collaborative project has been initiated between SOLEIL and Diamond to realize a new 'Position and Acquisition' processing platform, called PandA. The PandA project addresses current systems' limitations in term of obsolescence and need for more processing power. Its design is going to be a 1U standalone system powered by a Xilinx Zynq SoC to implement a configurable set of logic functionalities. It will provide a flexible and open solution to interface different third party hardware (detectors and motion Controllers). This paper details the organization of this collaboration, sharing technical leadership between both institutes and the status of the project.  
poster icon Poster MOPGF098 [1.953 MB]  
WEPGF137 Adopting and Adapting Control System Studio at Diamond Light Source 1
  • M.J. Furseman, N.W. Battam, T.M. Cobb, I.J. Gillingham, M.T. Heron, G. Knap, W.A.H. Rogers
    DLS, Oxfordshire, United Kingdom
  Since commissioning, Diamond Light Source has used the Extensible Display Manager (EDM) to provide a GUI to its EPICS-based control system. As Linux moves away from X-Windows the future of EDM is uncertain, leading to the evaluation of Control System Studio (CS-Studio) as a replacement. Diamond has a user base accustomed to the interface provided by EDM and an infrastructure designed to launch the multiple windows associated with it. CS-Studio has been adapted to provide an interface that is similar to EDM's while keeping the new features of CS-Studio available. This will allow as simple as possible a transition to be made to using CS-Studio as Diamond's user interface to EPICS. It further opens up the possibility of integrating the control system user interface with those in the Eclipse based GDA and DAWN tools which are used for data acquisition and data analysis at Diamond.  
poster icon Poster WEPGF137 [1.822 MB]  
THHB3O01 Mapping Developments at Diamond 1
  • R.D. Walton, A. Ashton, M. Basham, P. C. Y. Chang, T.M. Cobb, A.J. Dent, J. Filik, M.W. Gerring, C. Mita, C.M. Palmer, U.K. Pedersen, P.D. Quinn, N.P. Rees, S. da Graca
    DLS, Oxfordshire, United Kingdom
  Many synchrotron beamlines offer some form of continuous scanning for either energy scanning or sample mapping. However, this is normally done on an ad-hoc beamline by beamline basis. Diamond has recently embarked on an ambitious project to define how to implement continuous scanning as the standard way of doing virtually all mapping tasks on beamlines. The project is split into four main areas: 1) User interfaces to describe the mapping process in a scientifically relevant way, generating a scan description that can be used later; 2) The physical process of scanning and coordinating hardware motion and detector data capture across the beamline; 3) Capture of the detector data and all the associated meta-data to disk. Deciding and describing the layout of the file (or files) for the main use cases; 4) Display and analysis of live data and display of processed data. In order to achieve this common approach across beamlines, the standard software used throughout the facility (Delta Tau motor controllers, EPICS, GDA and DAWN), has been built on.  
slides icon Slides THHB3O01 [1.922 MB]