Author/Authors :
Takubo، نويسنده , , Y. and Aoki، نويسنده , , M. and Ishihara، نويسنده , , A. and Ishii، نويسنده , , J. and Kuno، نويسنده , , Y. and Maeda، نويسنده , , F. and Nakahara، نويسنده , , K. and Nosaka، نويسنده , , N. and Sakamoto، نويسنده , , H. and Sato، نويسنده , , A. and Terai، نويسنده , , K. and Igarashi، نويسنده , , Y. and Yokoi، نويسنده , , T.، نويسنده ,
Abstract :
A new straw-tube gas chamber which is made of seamless straw-tubes, instead of ordinary wound-type straw-tubes is developed. Seamless straw-tubes have various advantages over ordinary wound-type ones, in particular, in terms of mechanical strength and lesser wall thickness. Our seamless straw-tubes are fabricated to be resistive so that the hit positions along the straw axis can be read by cathode planes placed outside the straw-tube chambers, where the cathode strips run transverse to the straw axis. A beam test was carried out at KEK to study their performance. As a result of the beam test, the position resolution of the cathode strips of 220 μ m is achieved, and an anode position resolution of 112 μ m is also obtained.
Keywords :
straw , seamless , chamber , cathode , resistive
