Investigations of After Cavity Interaction in Gyrotrons Including the Effect of Non uniform Magnetic Field formatIsbn:Softcover 9783731501299 Ishizuka FACR Ishizuka Two recent seminars at the Foundation for Siberian Cultures were devoted to the discussion of community based pedagogical initiatives in Siberia Studies on four different gyrotron configurations confirm that undesired interactions in the up taper region can result in additional parasitic oscillations with relative power in the 1% range The self consistent KIT IHM multi mode code SELFT has been modified to extend the simulation domain into the radius up taper section of the gyrotron cavity where the probability of ACI exists