MULTIBEAM O-TYPE DEVICE Russian patent published in 1997 - IPC

FIELD: electronic engineering; electronic devices (klystrons, traveling-wave tubes, etc). SUBSTANCE: device has magnetic focusing system with magnetic field source, pole shoes, and collector magnetic screen placed at certain distance from collector pole shoe. Drilling is made on cylindrical part of collector screen 4; screen wall thickness at drilling mm, where H_max is maximum field intensity in gap between collector pole shoes and collector screen, Oe; r is collector screen radius, m. EFFECT: improved capacity and service life of device due to optimization of electron paths in collector. 2 cl, 3 dwg