| Autor: |
Qin, Zhi, He, Zhoubo, Cao, Zhe, Chen, Tao, Deng, Zhi, Duan, Limin, Guo, Dong, Hu, Rongjiang, Kong, Jie, Liu, Canwen, Ma, Peng, Wei, Xianglun, Wen, Shihai, Wen, Xiangjie, Yan, Junwei, Yang, Herun, Yang, Zuoqiao, Yu, Yuhong, Xiao, Zhigang |
| Rok vydání: |
2024 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| Popis: |
The half-size prototype of the multi wire drift chamber (MWDC) for the cooling storage ring (CSR) external-target experiment (CEE) was assembled and tested in 350 MeV/u Kr+Fe reactions on the heavy ion research facility in Lanzhou (HIRFL). The prototype consists of 6 sense layers, where the sense wires are stretched in three directions X, U and V, meeting $0^\circ$, $30^\circ$ and $-30^\circ$ with respect to the vertical axis, respectively. The sensitive area of the prototype is $76 {\rm cm} \times 76 {\rm cm}$. The amplified and shaped signals from the anode wires are digitized in a serial capacity array. Being operated with 1500 V high voltage on the anode wires, the efficiency for each layer is beyond 95\%. The tracking residual is about $301 \pm 2 \rm \mu m$. The performance meets the requirements of CEE. |
| Databáze: |
arXiv |
| Externí odkaz: |
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