Author/Authors :
Okuno، نويسنده , , H and Khalatyan، نويسنده , , N and Nakamura، نويسنده , , Y and Fujii، نويسنده , , K and Hoshina، نويسنده , , K and Kato، نويسنده , , Y and Kurihara، نويسنده , , Y and Kuroiwa، نويسنده , , H and Nitoh، نويسنده , , O، نويسنده ,
Abstract :
We have studied gas amplification properties of a proportional tube filled with CO2/isobutane gas mixtures. The gas gain was measured for X- and β-rays as a function of the anode-wire surface field and was used to estimate gain variation along 4.6 m-long stereo anode wires of our proposed central drift chamber for JLC. During the gas gain study, we observed a strong saturation effect for point ionizations.