2026-10-13T10:44:35Z https://www.scidb.cn/oai

10.57760/sciencedb.j00186.00446 2024-12-12T18:51:43Z

2024-12-12 Beam test results of the prototype of the multi wire drift chamber for the CSR external-target experiment doi:10.57760/sciencedb.j00186.00446 en 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°, 30°, and -30° with respect to the vertical axis, respectively. The sensitive area of the prototype is 76 cm × 76 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 ± 2µm. The performance meets the requirements of CEE. multi wire drift chamber (MWDC); CSR external-target experiment (CEE); tracking Zhi Qin PUBLIC https://mit-license.org dataset http://www.doi.org/10.1007/s41365-024-01628-6 Science Data Bank