Author: Liu, M.
Paper Title Page
THPOY016 Fast Machine Interlock Platform for Reliable Machine Protection Systems 4119
  • R. Tavčar, J. Dedič, E. Erjavec, R. Modic
    Cosylab, Ljubljana, Slovenia
  • M. Liu, C.X. Yin
    SINAP, Shanghai, People's Republic of China
  This article presents a machine interlock system (MIS), designed and developed in collaboration between SINAP and Cosylab. The design is based on the experience and requirements of different accelerator facilities around the world, with the goal of providing, out of the box, the flexibility, reliability, availability, determinism, response speed, etc., which facilities need for a Machine Protection System (MPS). The goal of the MIS platform is to provide a reliable tool, which covers all the common MIS behaviour, required by an MPS designer. The system is based on a proven hardware platform, uses radiation-tolerant FPGAs, has built-in redundancies for power supply, hardware components and logic and is configurable from EPICS. We present several design principles that were used and explain the features and principles of application. Furthermore, we present the system architecture, from hardware and firmware to software. The MIS system is currently being installed at the BNCT facility at the Ibaraki Neutron Medical Research Center in Japan and is planned in the treatment interlock system of APTRON, the Advanced Proton Therapy Facility in Shanghai, China.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPOY016  
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THPOY056 Implementation of SINAP Timing System in Shanghai Proton Therapy Project 4231
SUPSS082   use link to see paper's listing under its alternate paper code  
  • B.Q. Zhao, M. Liu, C.X. Yin, L.Y. Zhao
    SINAP, Shanghai, People's Republic of China
  Funding: The project of SINAP Timing System was supported by the National Natural Science Foundation of China (No. 11305246).
SINAP v2 timing system was implemented in the timing system of Shanghai Proton Therapy Project. The timing system in Shanghai Proton Therapy Project is required not only to generate operation sequence for medical proton synchrotron, but also to realize irradiation flow for beam delivery system. For these purposes, the firmware of SINAP v2 timing system is redesigned to satisfy both event code sequenced broadcasting to generate operation sequence and bidirectional event code transmit to realize irradiation flow. Thanks of the hardware advantage of SINAP v2 timing system, the event receiver (EVR) could transmit event code to event generator (EVG) and then broadcast to timing network by bidirectional transmit ability. By this design, the EVR installed in treatment room has ability to send event code to timing network to stop/start beam during slow extraction. The architecture of the timing system in Shanghai Proton Therapy Project is presented in the paper. The risk analysis is also described in detail.
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPOY056  
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