Time Projection Chamber For Photoproduction Of Hyperon Resonances At Spring-8/Leps

We have constructed a Time Projection Chamber (TPC) to study photoproduction of hyperon resonances at SPring-8/LEPS. The effective angular coverage of this TPC is close to 0.9 x 4 pi. The target holder is mounted in TPC and enable us to detect tracks as close as 16 millimeters from the target center. The active volume of TPC is filled with a P10 gas of 1 atmosphere. The spatial resolution in the pad plane is 340 pro and that along to drift direction is 550 mu m.