透過形二次電子のエネルギー分布 (I)
1969 年 38 巻 1 号 p. 25-32
詳細
1969 年 38 巻 1 号 p. 25-32
The energy distribution of transmitted secondary electrons from thin porous KCl films was measured by an ac-retarding field method. Half width of energy distribution curve was about 10-30eV. Surface potential could be obtained from the peak position of this energy distribution curve. Secondary yield was also measured simultaneously as a function of primary electron energy and collector voltage. Secondary yield of these films increases intensely with surface potential. Field enhanced secondary electron emission mechanism of thin porous KCl films was discussed taking into account the energy distribution of transmitted secondary electrons.
