3.1.1 Formation of Electronic Avalanche

Townsend was the first to conduct gas discharge experiments. In a very thickdischarge tube,the gas pressure was fixed at 0.101 MPa and the electric fieldstrength was E=25 kV/cm unchanged. It was found that if there was no ultravioletradiation or electron ......（本文共 6460 字 , 2 張圖）     [閱讀本文] >>