Takeuchi, M. T.

Paper	Title	Page
TOAA03	Status of the X-Ray FEL Control System at SPring-8	50
	T. Hirono, N. Hosoda, M. Ishii, T. Masuda, T. Matsushita, T. Ohata, M. T. Takeuchi, R. Tanaka, A. Yamashita JASRI/SPring-8, Hyogo-ken M. K. Kitamura, H. Maesaka, Y. Otake, K. Shirasawa RIKEN Spring-8 Harima, Hyogo T. Fukui RIKEN, Hyogo
	The X-ray FEL project at SPring-8 aims to build an X-ray lasing facility, which will generate brilliant coherent X-ray beams with wavelength of below 0.1nm. A combination of short-period in-vacuum undulators and an 8GeV high-gradient C-band linear accelerator makes the machine compact enough to fit into the SPring-8 1km-long beamline space. The machine commissioning will be started by March 2011. We designed the control system for the new machine based on the present SCSS test accelerator, which employs the MADOCA framework. The control system is based on the so-called “standard model” and composed of Linux-based operator consoles, database servers, Gigabit Ethernet, VMEbus system, and so on. The control system, also, has a synchronized data-taking scheme to achieve beam-based optics tuning. Most of the device control part is installed in water-cooled 19in. racks together with RF devices for temperature control, which guarantees stable RF phase control. This paper gives an overview of the project and describes the design of the control system. In addition, we briefly report the status of the SCSS test accelerator operated as a VUV-FEL user facility.
	Slides
WPPA18	A Virtualization of Operator Consoles on Beamline Control System	353
	T. Fukui RIKEN Spring-8, Hyogo M. Ishii, M. K. Kodera, M. T. Takeuchi, T. Ohata JASRI/SPring-8, Hyogo-ken
	We introduced the virtualization technology to more than 50 workstations in SPring-8 beamlines to reduce into 8 servers. The virtualization technology is a hot topic for server computing. It enables to consolidate a lot of computers to a few host computers. We presented the experiment of introduction of the virtualization technology at previous ICALEPCS conference. In SPring-8, about 50 beamlines are in operation. Each beamline had one workstation for an operator console to avoid interference from other beamline operation. The virtualization technology reduces hardware and maintenance costs while ensuring independency of a computing environment in each beamline. This paper describes the process and the result of the migration to the virtualization environment. In addition, we show changes of a topological network configuration for the virtualization environment.