Investigations of After Cavity Interaction in Gyrotrons Including the Effect of Non-uniform Magnetic Field
Dynamic after-cavity interaction (ACI) in megawatt-class gyrotrons is investigated that could lead to lower output mode purity and increased level of internal stray radiation. The self-consistent KIT-IHM multi-mode-code SELFT has been modified to extend the simulation domain into the radius up-taper...
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| Format: | Online |
| Sprache: | Englisch |
| Veröffentlicht: |
KIT Scientific Publishing
2021
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| Online-Zugang: | 35644 |
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| Zusammenfassung: | Dynamic after-cavity interaction (ACI) in megawatt-class gyrotrons is investigated that could lead to lower output mode purity and increased level of internal stray radiation. 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. 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. |
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