Author: Otake, Y.
Paper Title Page
MOPMN025 New SPring-8 Control Room: Towards Unified Operation with SACLA and SPring-8 II Era. 296
  • A. Yamashita, R. Fujihara, N. Hosoda, Y. Ishizawa, H. Kimura, T. Masuda, C. Saji, T. Sugimoto, S. Suzuki, M. Takao, R. Tanaka
    JASRI/SPring-8, Hyogo-ken, Japan
  • T. Fukui, Y. Otake
    RIKEN/SPring-8, Hyogo, Japan
  We have renovated the SPring-8 control room. This is the first major renovation since its inauguration in 1997. In 2011, the construction of SACLA (SPring-8 Angstrom Compact Laser Accelerator) was completed and it is planned to be controlled from the new control room for close cooperative operation with the SPring-8 storage ring. It is expected that another SPring-8 II project will require more workstations than the current control room. We have extended the control room area for these foreseen projects. In this renovation we have employed new technology which did not exist 14 years ago, such as a large LCD and silent liquid cooling workstations for comfortable operation environment. We have incorporated many ideas which were obtained during the 14 years experience of the design. The operation in the new control room began in April 2011 after a short period of the construction.  
WEMMU011 Radiation Safety Interlock System for SACLA (XFEL/SPring-8) 710
  • M. Kago, T. Matsushita, N. Nariyama, C. Saji, R. Tanaka, A. Yamashita
    JASRI/SPring-8, Hyogo-ken, Japan
  • Y. Asano, T. Hara, T. Itoga, Y. Otake, H. Takebe
    RIKEN/SPring-8, Hyogo, Japan
  • H. Tanaka
    RIKEN SPring-8 Center, Sayo-cho, Sayo-gun, Hyogo, Japan
  The radiation safety interlock system for SACLA (XFEL/SPring-8) protects personnel from radiation hazards. The system controls access to the accelerator tunnel, monitors the status of safety equipment such as emergency stop buttons, and gives permission for accelerator operation. The special feature of the system is a fast beam termination when the system detects an unsafe state. A total beam termination time is required less than 16.6 ms (linac operation repetition cycle: 60 Hz). Especially important is the fast beam termination when the electron beams deviates from the proper transport route. Therefore, we developed optical modules in order to transmit a signal at a high speed for a long distance (an overall length of around 700 m). An exclusive system was installed for fast judgment of a proper beam route. It is independent from the main interlock system which manages access control and so on. The system achieved a response time of less than 7ms, which is sufficient for our demand. The construction of the system was completed in February 2011 and the system commenced operation in March 2011. We will report on the design of the system and its detailed performance.  
slides icon Slides WEMMU011 [0.555 MB]  
poster icon Poster WEMMU011 [0.571 MB]  
TUDAUST01 Inauguration of the XFEL Facility, SACLA, in SPring-8 585
  • R. Tanaka, Y. Furukawa, T. Hirono, M. Ishii, M. Kago, A. Kiyomichi, T. Masuda, T. Matsumoto, T. Matsushita, T. Ohata, C. Saji, T. Sugimoto, M. Yamaga, A. Yamashita
    JASRI/SPring-8, Hyogo-ken, Japan
  • T. Fukui, T. Hatsui, N. Hosoda, H. Maesaka, T. Ohshima, T. Otake, Y. Otake, H. Takebe
    RIKEN/SPring-8, Hyogo, Japan
  The construction of the X-ray free electron laser facility (SACLA) in SPring-8 started in 2006. After 5 years of construction, the facility completed to accelerate electron beams in February 2011. The main component of the accelerator consists of 64 C-band RF units to accelerate beams up to 8GeV. The beam shape is compressed to a length of 30fs, and the beams are introduced into the 18 insertion devices to generate 0.1nm X-ray laser. The first SASE X-ray was observed after the beam commissioning. The beam tuning will continue to achieve X-ray laser saturation for frontier scientific experiments. The control system adopts the 3-tier standard model by using MADOCA framework developed in SPring-8. The upper control layer consists of Linux PCs for operator consoles, Sybase RDBMS for data logging and FC-based NAS for NFS. The lower consists of 100 Solaris-operated VME systems with newly developed boards for RF waveform processing, and the PLC is used for slow control. The Device-net is adopted for the frontend devices to reduce signal cables. The VME systems have a beam-synchronized data-taking link to meet 60Hz beam operation for the beam tuning diagnostics. The accelerator control has gateways to the facility utility system not only to monitor devices but also to control the tuning points of the cooling water. The data acquisition system for the experiments is challenging. The data rate coming from 2D multiport CCD is 3.4Gbps that produces 30TB image data in a day. A sampled data will be transferred to the 10PFlops supercomputer via 10Gbps Ethernet for data evaluation.  
slides icon Slides TUDAUST01 [5.427 MB]