Keyword: PLC
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WEPGW073 Control System for Lasers at Hilase laser, controls, EPICS, software 2641
  • J. Horáček, T. Mocek, M. Rehakova
    HiLASE Centre, Institute of Physics ASCR, v.v.i., Dolní Bře’any, Czech Republic
  • R. Modic, J. Podlipnik, M. Pogacnik
    Cosy lab, Ljubljana, Slovenia
  We present the current state of the HiLASE Centre con-trol system developed in cooperation with Cosylab. The aim of the development is to build a control system which would be in charge of the operation of kW-class in-house-developed laser beamlines. These beamlines deliv-er picosecond pulses with repetition rates between 1 kHz and 1 MHz and high-energy nanosecond pulses at 10 Hz. A generic control system architecture is presented, which can either support full-size development lasers or com-pact industrial versions. The EPICS control system work focuses on image ac-quisition and processing, vacuum control, provision of timing, archiving and user interfaces. HiLASE provides high-level requirements, Cosylab complements them, provides the design of the solution and implementation. Delivery is performed during on-site visits where a test plan is executed for acceptance. This approach relieves HiLASE of the need to hire and manage their own team while retaining full control over the functionality through requirements and acceptance approval. Cosylab complements HiLASE with self-managed teams that de-liver to specification.  
DOI • reference for this paper ※  
About • paper received ※ 13 May 2019       paper accepted ※ 20 May 2019       issue date ※ 21 June 2019  
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THPRB035 Development of Beam Window Protection System for J-PARC Linac linac, operation, vacuum, site 3886
  • H. Takahashi, S. Hatakeyama, Y. Sawabe
    JAEA/J-PARC, Tokai-mura, Japan
  • T. Ishiyama, T. Suzuki
    Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan
  • T. Miyao
    KEK, Ibaraki, Japan
  In J-PARC Linac, beam study (including beam conditioning) is mainly performed using beam dump. A beam window is installed in the beam line to each beam dump. It is considered that the parameters of acceptable beam to able to be injected the beam window are the 50 mA current, the 100 micro-sec width and the 2.5 Hz repetition. On the other hand, at beam study of Linac, the beam with higher power than these parameters are not used. Therefore, the beam study was started and performed only after the operator checked that the beam parameters are within the acceptable values. However, at the beam study of 2018, a beam windows of 0-degree dump was cracked because the beam that exceeds acceptable parameters was injected due to human error. Then, beam study using 0-degree dump was impossible at all. And, in order not to cause such accident again, we began to develop the beam window protection system. Moreover, as soon as possible, implementation of the system was required. Therefore, we designed and developed this system by improving it based on the particle management system which can measure all 25 Hz beam. We have developed a beam window protection system that monitors the beam current for each shot and accumulated beam current for a prescribed time and inhibits the beam by MPS when either value exceeds the threshold. Moreover, we succeeded in developing and implementing this system in a short time. This paper is described about development and function test of beam window protection system.  
DOI • reference for this paper ※  
About • paper received ※ 30 April 2019       paper accepted ※ 22 May 2019       issue date ※ 21 June 2019  
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THPTS069 A Monitoring System for TPS Linac linac, controls, operation, injection 4272
  • C.L. Chen, H.-P. Chang, C.-S. Fann, K.L. Tsai
    NSRRC, Hsinchu, Taiwan
  Abstract Since 2014, TPS Linac system has been operating regularly. In order to keep a high stability during a long operating time, it is important to develop a monitoring system to monitor all sub-systems, parameters, including setting values, reading values, control inputs and outputs. This system is not only recording all above mentioned parameters, but also provides an efficient diagnosis in case of troubleshooting. Because the controlling system in TPS Linac is using Siemens S7-300 PLCs, Simatic WinCC is utilized to develop a historical archiving, operational analyses, and operator activities in operation. This paper attempts to show a complete solution for the integrated software structure and its resulting process analysis.  
DOI • reference for this paper ※  
About • paper received ※ 14 May 2019       paper accepted ※ 23 May 2019       issue date ※ 21 June 2019  
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