SOR-ring experiment building

The SOR-ring (synchrotron radiation storage ring) experiment building is a reinforced concrete building of three-stories including a mezzanine. Its construction was started in August, 1972, and completed in March, 1973. It has the ring room, RF power source room and a lavatory in the first floor. In the ring room, the SOR-ring is installed, and 5 beam lines are attached. There are a laboratory and a meeting room on the second floor, and the control room and a room used both as darkroom and chemical room are on the mezzanine. The switch room, the air conditioning machine room, and the elevator machine room are arranged on the third floor. The total floor area of the first through third floors are about 550 m2. A 2-ton rotary crane is installed in the ring room to bring large machines or equipments in the room. Each shielding door has a microswitch for interlock. On the roof, a 300 kVA transformer is installed. The distribution board in every room is separated into the ones for SOR-ring operation and for researchers. Air conditioning in each room is performed through ducts by means of a single air conditioning machine. The conditioning is designed to be of positive pressure operation for dust prevention. Its temperature set point is 23 +- 2 deg C. Wider space for measuring system is desirable since the ring has become a very high performance facility, though the site is limited under the locating conditions. (Wakatsuki, Y.)