【摘要】 本文介绍一种灵敏面积为20×20cm²的可调电场漂移室的基本结构和主要性能。获得空间分辨率120μm,时间分辨率（FWHM）5.3ns,效率99％以上,漂移单元内幅度均匀,空间-时间呈线性关系,对于⁵⁵Fe X射线能量分辨率22.5％。更多还原

【Abstract】 The elementary construction and primary performance of an adjustable field driftchamber with sensitive area 20 cm×20 cm are discussed. We have obtained spatialresolution of 120 μm, time resolution （FWHM） of 5.3 ns and efficiency of above 99%.The amplitude is uniform in drift cell. The time-space correlation is linear and itsenergy resolution arrives 22.5% for X-ray of ⁵⁵Fe.更多还原