【摘要】 本文主要描述气体种类和成分以及SF₆负电性气体含量等对流光径迹质量的影响,并测量了流光直径、密度以及时间分辨率和空间分辨率等。也探讨了高压脉冲幅度对流光直径、亮度等的依赖关系。此外还研究了国产底片的感光性能,并与国外底片进行了比较。主要的改进包括消电晕夹丝有机玻璃电极的制作,选择Marx产生器最佳工作条件而使高压脉冲系统的延迟时间由～3_μs减小到～0.9_μs。更多还原

【Abstract】 In this paper the influence of various proportion of Ne-He gases and the time delay on the quality of streamer tracks has been studied. The diameter and density of streamers under these mixed-gas conditions have been measured.The time resolution of this streamer chamber was determined to be 2.1 μs in 69% Ne + 31% He + 8 X 10^-8SF₆, and as 177μs in pure neon by using the exponentially decreasing relation of streamer desity with delay time. The spatial resolution was determined to be 0.32 mm in Ne +3×10^-8SF₆ by measuring the streamer diameters, and the method of track standard deviation was also used.Some results show that the diameter and brightness increase with increasing high voltage, but become rather even when high voltage continues increasing.Photographs were taken with domestically produced special film （32 DIN, 60 lines/ mm）, being similar to Kodak SO-143.A special designed central electrode of the streamer chamber with its wires inlaid in lucite plate is successful for preventing gas from breakdown near wires. Besides, delay time has been reduced to 1.3μs, mainly by the Marx generator and its trigger system, the parameters of which have been chosen by a series of experiments.更多还原