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描述一种可用于兰州放射性束流线(RIBLL)上的ΔE探测器——横向场气体电离室．对其性能进行了测试,包括它的坪曲线、探测效率和能量分辨．测试结果显示,在混合气Ar(80％)+CO2(20％)的不同气压下,此电离室具有较长的工作坪区,较小的坪斜．相对于Si的探测效率为99．31％．在118mbar的气压下,对能损为4．94MeV的α粒子,其能量分辨率为3．25％．并在RIBLL上利用50MeV／u的58Ni轰击Ta靶的实验中进行了在束应用．
Describe a ΔE detector-lateral field gas ionization chamber that can be used on the Lanzhou radioactive beam line (RIBLL). Its performance was tested, including its flatness curve, detection efficiency and energy resolution. The test results show that the ionization chamber has a longer working area and a smaller slope at different pressures of Ar (80%) + CO2 (20%). The detection efficiency relative to Si was 99.31%. At an air pressure of 118 mbar, the alpha particle with an energy loss of 4.94 MeV has an energy resolution of 3.25%. And the beam application was performed in an RIBLL bombardment Ta target with 50 MeV / u 58Ni.