Perveance of a planar diode with explosive emission finite-diameter cathodes
2002; American Institute of Physics; Volume: 81; Issue: 13 Linguagem: Inglês
10.1063/1.1506015
ISSN1520-8842
AutoresYuri Saveliev, Wilson Sibbett, David M. Parkes,
Tópico(s)Electromagnetic Simulation and Numerical Methods
ResumoPerveance of a planar diode with explosive emission velvet cathodes of 20–100 mm diameters in a range of diode gaps of 0.5–5 cm is investigated experimentally. An empirical universal curve linking the diode perveance and the cathode radius-to-diode gap ratio is determined thus allowing application of a Child–Langmuir model to diodes of finite dimensions. Comparison of experimental results with two-dimensional (2D) computational models is made and a simple method to translate 2D simulation results to the three-dimensional diode configurations is suggested.
Referência(s)