Current-noise characteristics as an instrument for quality estimation of hot cathodes

Autor: D N Yudaev, M. N. Chirkov, P. I. Akimov, M. D. Vorobyev, V. A. Smirnov, V. G. Chudin
Rok vydání: 2013
Předmět:
Zdroj: 2013 IEEE 14th International Vacuum Electronics Conference (IVEC).
DOI: 10.1109/ivec.2013.6571035
Popis: The results of experimental measurements of dispenser cathodes shot and flicker noise show that there is a relation between the experimental diodes noise characteristics and the uniformity of emitting surface. Based on these results a computer model was developed to make quantitative estimates of the emission uniformity of the cathodes. This model combined with current-voltage characteristics analysis used for a new comprehensive methodology development. The methodology allows finding the emission parameters with greater accuracy.
Databáze: OpenAIRE