主漂移室2.3m全长单元模型

• 作 者: 马基茂 王运永 毛泽普 毛慧顺 白景芝 周杰 荣刚 谢佩佩 颜洁
• 机 构: 中国科学院高能物理研究所rrrrrrrrn,中国科学院高能物理研究所rrrrrrrrn,中国科学院高能物理研究所rrrrrrrrn,中国科学院高能
• 出 处: 核电子学与探测技术
• 发表日期: 1987年04期
• 关键词: 漂移室 单元模型 极丝 饱和效应 丝距 气体倍增 幅度分布 串音 北京谱仪 工作气体

我们建造了北京谱仪主漂移室三种丝距的全长单元模型,采用将来主漂移室选定的工作气体:氩、二氧化碳、甲烷的体积比为89:10:1。用放射源测量了气体倍增系数随电场丝高压和电位丝高压变化的关系,增益的饱和效应,沿阳极丝的信号幅度分布和串音,圆筒内外壁的补偿电场对边缘阳极丝幅度的影响等。

We have built a full-length element model for the three drift lengths of the main spectrometer drift chamber using a working gas selected by the main drift chamber in the future: argon, carbon dioxide, and methane in a volume ratio of 89: 10: 1. The relationship between the gas multiplication factor and the variation of the high voltage of the potential wire, the saturation effect of the gain, the signal amplitude distribution along the anode wire and crosstalk, and the compensation electric field of the inner and outer walls of the cylinder on the amplitude of the edge anode wire were measured by radioactive sources Wait.