Investigations of After Cavity Interaction in Gyrotrons Including the Effect of Non-uniform Magnetic Field

• Tác giả: Amitavo Roy Choudhury
• Ngôn ngữ: eng
• ISBN-13: 978-3731501299
• Thông tin xuất bản: Karlsruhe : KIT Scientific Publishing, 2014
• Mô tả vật lý: 1 electronic resource (X, 124 p. p.)
• Bộ sưu tập: Tài liệu truy cập mở
• ID: 229125

Tóm tắt

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.