Author: Martlew, B.G.
Paper Title Page
WPO038 A Modular Personnel Safety System for VELA based on Commercial Safety Network Controllers 123
 
  • M.D. Hancock, B.G. Martlew
    STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom
 
  STFC Daresbury Laboratory has recently commissioned VELA (Versatile Electron Linear Accelerator), a high performance electron beam test facility. It will be used to deliver high quality, short pulse electron beams to industrial users to aid in the development of new products in the fields of health care, security, energy and waste processing and also to develop and test novel compact accelerator technologies. In the early stages of the design it was decided to use commercial Safety Network Controllers and I/O to implement the Personnel Safety System in place of the electro-mechanical relay-based system used on previous projects. This provides a high integrity, low cost solution while also allowing the design to be modular, programmable and easily expandable. This paper describes the design and realisation of the VELA Personnel Safety System and considers its future development. In addition, the application of the system to the protection of high-power laser systems and medical accelerators will also be discussed.  
 
WPO039
Control System Design for the VELA Test Accelerator at Daresbury Laboratory  
WPI05   use link to see paper's listing under its alternate paper code  
 
  • A. Oates, G. Cox, B.G. Martlew
    STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom
 
  VELA (Versatile Electron Linear Accelerator) is a high performance, modular injector facility capable of delivering a highly stable, short pulse, high quality electron beam to test enclosures. The new facility delivers a capability for the cutting edge development and qualification of advanced accelerator systems, enabling industry to expedite their technology development from prototypes to market ready products. Initial design began in 2011 and was followed by an aggressive programme of procurement, construction and commissioning, leading to first beam in summer 2013 and operation for industrial partners in autumn 2013. The control system for this completely new accelerator was designed from scratch and is based entirely on COTS (commercially off-the-shelf) hardware such as EtherCat, the latest generation of PLCs, Ethernet serial control and Linux rack mount IOCs. EPICS is used as he software toolkit. This paper describes the overall structure of the control system and discusses the choice of hardware and software together with some reflections on the suitability of those choices in the light of the first 12 months of operation.  
slides icon Slides WPO039 [0.956 MB]