【摘要】 建造了BESⅢ漂移室全长模型．在气体密封,高压供给及前端电子学安装方面为BESⅢ漂移室的成功建造积累了经验．另外,在全长模型上对BESⅢ漂移室电子学进行了测试,包括噪声,漂移时间测量,电荷测量,以及电子学增益等方面．测试的最终结果显示了BESⅢ漂移室电子学具有很好的性能,能够满足它们的设计要求．更多还原

【Abstract】 A full-length prototype of the BESⅢdrift chamber was built. The experience gained on gas sealing, high voltage supply and front-end electronics installation should be greatly beneficial to the successful construction of the BESⅢdrift chamber. An on-detector test of the BESⅢdrift chamber electronics was carried out with the constructed prototype chamber. The noise performance, drift time and charge measurements, and electronics gains were examined specifically. The final test results indicate that the electronics have a good performance and can satisfy their design requirements.更多还原