Beam test results of the prototype of the multi wire drift chamber for the CSR external-target experiment

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作者
Zhi Qin [1 ]
ZhouBo He [2 ]
Zhe Cao [3 ]
Tao Chen [3 ]
Zhi Deng [4 ]
LiMin Duan [2 ,5 ]
Dong Guo [1 ]
RongJiang Hu [2 ,5 ]
Jie Kong [2 ,5 ]
CanWen Liu [4 ]
Peng Ma [2 ,5 ]
TianLei Pu [2 ,5 ]
Yi Qian [2 ,5 ]
XiangLun Wei [2 ,5 ]
ShiHai Wen [2 ,5 ]
XiangJie Wen [2 ,5 ]
JunWei Yan [2 ,5 ]
HeRun Yang [2 ,5 ]
ZuoQiao Yang [2 ,5 ]
YuHong Yu [2 ,5 ]
ZhiGang Xiao [1 ]
机构
[1] Department of Physics, Tsinghua University
[2] Institute of Modern Physics, Chinese Academy of Sciences
[3] University of Science and Technology of China
[4] Department of Engineering Physics, Tsinghua University
[5] School of Nuclear Science and Technology, University of Chinese Academy of
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TL594 [储存环(对头碰)];
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摘要
A half-size prototype of the multi wire drift chamber for the cooling storage ring external-target experiment(CEE) was assembled and tested in the 350 MeV/u Kr + Fe reactions at the heavy-ion research facility in Lanzhou. The prototype consists of six sense layers, where the sense wires are stretched in three directions X, U, and V; meeting 0?, 30?, and-30?,respectively, with respect to the vertical axis. The sensitive area of the prototype is 76 cm × 76 cm. The amplified and shaped signals from the anode wires were digitized in a serial capacity array. When operating at a high voltage of 1500 V on the anode wires, the efficiency for each layer is greater than 95%. The tracking residual is approximately 301 ± 2μm. This performance satisfies the requirements of CEE.
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页码:177 / 186
页数:10
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