Spread of total energy distribution of thermal field-emitted electrons from LaB6
- 1 June 1977
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 10 (8) , L113-L115
- https://doi.org/10.1088/0022-3727/10/8/006
Abstract
The spread of the total energy distribution of thermal field-emitted electrons from LaB6 is calculated and compared with that from W. The results show that the energy spread of electrons emitted from LaB6 has a maximum at a certain temperature, and that the spread of those from W is smaller than those from LaB6. This suggests that a low work-function material do not necessarily show a good performance for a temperature field-emitted electron source.Keywords
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