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**Harvard**

Rasch, J., Anderson, D., Johansson, J., Lisak, M., Puech, J., Rakova, E. och Semenov, V. (2010) *Microwave multipactor breakdown between two cylinders*.

** BibTeX **

@article{

Rasch2010,

author={Rasch, Joel and Anderson, Dan and Johansson, J. and Lisak, Mietek and Puech, J. and Rakova, E. and Semenov, V.E.},

title={Microwave multipactor breakdown between two cylinders},

journal={IEEE Transactions on Plasma Science},

issn={0093-3813},

volume={38},

issue={8},

pages={1997 - 2005},

abstract={An analysis has been made of the microwave breakdown
threshold for multipactor in an open structure comprising
two parallel cylinders, approximating, e.g., parts of a helix antenna. The electron motion in the corresponding electromagnetic field is analyzed by separating the motion into a slowly varying drift velocity (driven by the ponderomotive force due to the electric field inhomogeneity) and a rapidly oscillating part (driven by
the oscillating electric field). Furthermore, the curvature of the cylindrical surfaces of emission is shown to give rise to a new effect that implies a loss of electrons. This leads to a more stringent multipactor breakdown condition for the two-wire structure than
for the classical situation corresponding to the case of two plane parallel infinite plates. The importance of this effect is determined by the ratio of the cylinder radii and the distance between the cylinders, and it is shown that when this ratio is small, multipactor can only occur for surfaces having very large secondary emission
coefficients. A detailed analysis is also made to determine the lowest voltage between the cylinders at which multipactor becomes possible.},

year={2010},

keywords={Helix antenna, microwave breakdown, multipactor},

}

** RefWorks **

RT Journal Article

SR Electronic

ID 126215

A1 Rasch, Joel

A1 Anderson, Dan

A1 Johansson, J.

A1 Lisak, Mietek

A1 Puech, J.

A1 Rakova, E.

A1 Semenov, V.E.

T1 Microwave multipactor breakdown between two cylinders

YR 2010

JF IEEE Transactions on Plasma Science

SN 0093-3813

VO 38

IS 8

SP 1997

OP 2005

AB An analysis has been made of the microwave breakdown
threshold for multipactor in an open structure comprising
two parallel cylinders, approximating, e.g., parts of a helix antenna. The electron motion in the corresponding electromagnetic field is analyzed by separating the motion into a slowly varying drift velocity (driven by the ponderomotive force due to the electric field inhomogeneity) and a rapidly oscillating part (driven by
the oscillating electric field). Furthermore, the curvature of the cylindrical surfaces of emission is shown to give rise to a new effect that implies a loss of electrons. This leads to a more stringent multipactor breakdown condition for the two-wire structure than
for the classical situation corresponding to the case of two plane parallel infinite plates. The importance of this effect is determined by the ratio of the cylinder radii and the distance between the cylinders, and it is shown that when this ratio is small, multipactor can only occur for surfaces having very large secondary emission
coefficients. A detailed analysis is also made to determine the lowest voltage between the cylinders at which multipactor becomes possible.

LA eng

DO 10.1109/TPS.2010.2052372

LK http://dx.doi.org/10.1109/TPS.2010.2052372

OL 30