Ishii, M. I.

Paper	Title	Page
TUB003	Event-Synchronized Data-Acquisition System for SPring-8 XFEL	69
	M. Yamaga, Y. Furukawa, T. Hirono, M. I. Ishii, T. Masuda, T. Ohata, R. Tanaka, A. Yamashita JASRI/SPring-8, Hyogo-ken T. Fukui, N. Hosoda RIKEN/SPring-8, Hyogo
	We report the status and the upgrade of the event-synchronized data-acquisition system for the accelerator control of XFEL/SPring-8. Because the XFEL is composed of a linac, most of the equipment is driven with the pulsed operation. The stability of equipment is critically important to achieve/stabilize the FEL lasing. We need a fast data-acquisition system to take a set of data from RF signals and beam monitor signals synchronizing with the same electron beam shots. For this purpose, the event-synchronized data-acquisition system has been introduced to the control system of the SCSS test accelerator, an XFEL prototype machine. The system consists of a data filling computer, a relational data base server, VME-based shared memory boards and distributed shared memory network. So far total of 54 signals from the beam monitoring system are successfully collected synchronizing with the 60 Hz of beam operation cycles. The accumulated data was utilized for the fast feedback correction of beam trajectories and energy quite effectively. Signals from the RF systems will be taken by the upgraded data-acquisition system utilizing the distributed memory-cache system.
TUP003	Consummation of an Observable Network System	102
	T. Ohata, M. I. Ishii, T. Sakamoto, T. Sugimoto JASRI/SPring-8, Hyogo-ken
	Recent network system becomes more complex and larger because of virtual LAN and other virtualization technologies. Proliferation of a variety of network switches and routers makes a network system gigantic; hence, management of the misty network faces problems. This is the largest factor that deteriorates stable operation of a network system that should be robust and reliable. One of the promising solutions to keep a network system simple and understandable is introduction of the monitor tools that makes a network system visual and observable. We introduced the sFlow technology in addition to the traditional SNMP-based network node management (NNM) system. We could take statuses of network nodes by NNM such as hardware failure, and also we could grasp long perspective of network traffic at one view by the sFlow. In addition, an integrated log management system was introduced to collect all events on the whole network system. As a result, we could detect a trouble outbreak in real time even if a trouble occurred on the end point of the network, and could solve the problem promptly. We describe a way to achieve an observable network system to maintain stable network operation.
TUP095	Facility Utility Control System of XFEL/SPring-8	298
	T. Masuda, M. I. Ishii, R. Tanaka JASRI/SPring-8, Hyogo-ken T. Fukui, N. Kumagai, Y. Sekiguchi RIKEN/SPring-8, Hyogo
	The XFEL facility under construction at SPring-8 requires highly stable RF phase and intensity control for steady X-ray lasing. The RF conditions are very sensitive to facility utilities and environmental conditions such as air temperature, power line voltage, especially to cooling water temperature for accelerating structures. We, therefore, have to monitor them with required sampling rate and resolution from the viewpoint of the accelerator control. In particular, the cooling water for accelerating structure should be controlled seamlessly from the XFEL control system to achieve steady lasing. We designed and constructed a control system for the facility utilities as a part of the XFEL accelerator control with the MADOCA framework. All the signals of the facility utilities are stored into the same database with the XFEL control system, which helps us to investigate the correlations between beam stability and environmental conditions. All the utility equipment is controlled by PLCs connected to VME systems through FL-net. We set up PLC touch panels to support daily management as the local control interface.
WEP028	Development of a Multi Functional Unit: Blanc4	465
	M. I. Ishii, T. Ohata JASRI/SPring-8, Hyogo-ken
	A beamline station control system in SPring-8 has been installing two types. One is a VMEbus system and another is a desktop PC-Based system. The VMEbus system was adopted to construct a flexible control system by combining VME modules. However, the VMEbus system is over engineering for a compact control system to handle a few I/O signals or a few motor axes. And the VMEbus system is hard to handle for beamline staffs who are not experts of control system. On the other hand, the desktop PC-Based system is relatively low-cost and suitable for small system. However, the system is inferior in stability and scalability to the VMEbus system. To construct a reliable, flexible, compact, low-cost and user-friendly system, we developed a multi functional unit, Blan4, that is a flexible embedded computer supporting COM Express basic form factor. A Blanc4 has two PCI slots and two PCI Express slots in just 1 U height. A Blanc4 can replace connector panels and signal conditioning boards customized for each control target. We report the Blanc4 assembling as a flexible multi functional unit.
	Poster
WED006	Upgrade Of The Spring-8 Control Network For Integration Of Xfel	627
	T. Sugimoto, M. I. Ishii, T. Ohata, T. Sakamoto, R. Tanaka JASRI/SPring-8, Hyogo-ken
	Today, new synchrotron-radiation facilities have been built around the world. One of these facilities, RIKEN XFEL project in Japan, is characterized by its location beside existing facility, SPring-8. Using X rays from two facilities in coincidence, new scientific applications are expected such as pump-and-probe experiments, and so on. We also plan to use linac of the XFEL as another injector to the SPring-8. By benefiting from combined application with two facilities, it is necessary to integrate two control systems. Important point of the integration is combination and segregation of two facilities. For combined applications, two control systems should be treated as one facility. On the other hand, when two facilities are operated separately, two control systems should be independent each other, and one system must not be affected by any trouble of another system. To archive the point, we physically segregate control system into two networks using firewall. Since control architecture in SPring-8 is database oriented, two systems can be coupled with synchronization of database for combined applications. We show the concept and upgrade status of new network and control system.
	Slides