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A medium size research facility has a difficulties to develop control systems for their own special equipments, especially for accelerator facilities, because there is only few experts for constructing the control system and the control objects are not mass-product ones in most case. We have experienced such situation and we found a solution for a development in a medium size accelerator complex, SAGA Light Source (SAGA-LS) by using distributed MSPC control system which is connected with a standard Internet protocol and is developed by Labview. The SAGA Light Source (SAGA-LS) (Tomimasu, et al., 2003), (Iwasaki, et al., 2003) is a medium size synchrotron light research facility located at Kyusyu-Island, Japan. The accelerator control programs have been developed in-house from the beginning of the machine commissioning using Labview. At this stage almost all of the components of the accelerator, for instance, magnet power supplies, radio frequency (RF) system, vacuum monitoring and beam position monitoring system, are controlled and monitored by server and client model with LabView. During the commissioning period integrated sub-systems such as a feed-forward orbit correction system for insertion devices, a feedback power supply control system, a beam based beam position monitor (BPM) calibration and the other control applications have also been developed with Labview. E-mail services for alarm information and Web server that delivers accelerator status for entire facility are also developed by Labview. External codes are available to help the accelerator operation. For example TRACY2 (Nishimura, 1988) is used for accelerator modelling to establish the machine parameters in cooperate with Labview control system. In this chapter we describe the SAGA-LS accelerator control system as an example of developments of the control system for a medium size research facility using Labview.

In-House Control System for Medium Size Research Facility