Following figure shows schematic drawings of the ASCHRA. Three target positions are available inside to meet various demands in experiments; three movable detector arms are controlled independently at each target posi. tion. There is a small side chamber to extend the flight path near the scattering angle of 90 degrees. The maximum flight lengths are 3 m at forward angles and 2.5 m at 9O degrees. As is shown in the figure, a large FIrish-grid type ioniza-tion chamber is installed as a DE-E counter telescope for charge indentification. A PPAC and a CPD will be used as a time pick off deteetor for a time-of-flight tele. scope. A 4-pi counter for measurement of light particles and gamma rays' will also be installed in this scattering chamber.
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RIKEN Accelerator Research Facility