An experiment on the velocity distribution of thermionic electrons
An experiment on the velocity distribution of thermionic electrons
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热电子速度分布实验
DOI:
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发表时间:
2010
期刊:
影响因子:
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通讯作者:
R. M. Sperandeo
中科院分区:
文献类型:
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作者:
O. R. Battaglia;C. Fazio;I. Guastella;R. M. Sperandeo
This paper describes an undergraduate experiment that yields the velocity distribution of thermionic electrons by analyzing the I-V characteristics of diodes and triodes. The experiment allows students to focus on the distribution function more than on difficulties arising from the complexity of thermionic emission. By using a simple model, the velocity distribution of thermionic electrons emitted by the vacuum tube cathode can be described by Maxwell’s distribution.