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Langevin simulation of rf collisional multipactor breakdown of gases J. de Lara,3

Summary: Langevin simulation of rf collisional multipactor breakdown of gases
L. Conde,1
F. Pérez,2
J. de Lara,3
M. Alfonseca,3
and D. Raboso4
Departamento de Física Aplicada, E.T.S.I. Aeronáuticos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
GMV, Isaac Newton 11, Tres Cantos, E28760 Madrid, Spain
E.T.S. Informática, Universidad Autónoma de Madrid, 28049 Madrid, Spain
ESA/ESTEC, Keplerplaan 1, Postbus 299, 2200 AG Noordwijk, The Netherlands
Received 12 February 2009; published 16 June 2009
The thresholds for the electron multiplication in both multipactor and the so-called collisional multipactor
microwave discharges are calculated by means of an individual particle model. The simulations are restricted
to low and intermediate gas pressures, where the collisional mean-free path of electrons is of the same order or
larger than the characteristic dimension of the system. Thus, the charge multiplication is caused by both the
electron impact ionization of the neutral gas and the secondary electron emission by electron collisions at the


Source: Alfonseca, Manuel - Escuela Politécnica Superior, Universidad Autonoma de Madrid


Collections: Computer Technologies and Information Sciences; Engineering