Plasma effect in tape helix traveling-wave tube

الموضوعات : Journal of Theoretical and Applied Physics

S. Saviz ¹ , F. Salehizadeh ²

1 - Plasma Physics Research Center, Science and Research Branch, Islamic Azad University
2 - Plasma Physics Research Center, Science and Research Branch, Islamic Azad University

تاريخ التأكيد : 03 الأحد , شعبان, 1435 تاريخ الإصدار : 03 الأحد , شعبان, 1435

الکلمات المفتاحية: Traveling wave tube, plasma, Helix,

ملخص المقالة :

AbstractA linearized relativistic field theory of a plasma-loaded helix traveling-wave tube is presented for a configuration where a solid electron beam propagate through a sheath helix enclosed within a loss-free wall in which the gap between the helix and the outer wall is filled with a dielectric. Numerical study of the effect of plasma density on the phase velocity and growth rate has been done. Numerical results show that the plasma have different behaviors in different density limits.