Method and apparatus for collector sweeping control of an electron beam
AssigneesMax-Planck-Gesellschaft Zur FöRderung Der Wissenschaften E. V., Karlsruher Institut für Technologie
InventorsVolker Erckmann, Gunter Dammertz, Martin Schmid
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Abstract
A collector sweeping method for controlling an electron beam (1) in a beam collector (230), in particular of a magnetic gyrotron device, comprises the steps of subjecting the electron beam (1) to a transversal sweeping field having a field component perpendicular to a longitudinal direction (z) of the beam collector (230) and providing a tilted, rotating intersection area (3) of the electron beam (1) in the beam collector (230), and varying at least one of a longitudinal position and a tilting angle of the intersection area (3) by a modulation of the transversal sweeping field. Furthermore, a collector sweeping apparatus (100) and a microwave generator (200) are described.
Claims19
Collector sweeping method for controlling an electron beam (1) in a beam collector (230), comprising the steps of:
- subjecting the electron beam (1) to a transversal sweeping field having a field component perpendicular to a longitudinal direction (z) of the beam collector (230) and providing a tilted, rotating intersection area (3) of the electron beam (1) in the beam collector (230),
- characterized by the further step of
- varying at least one of a longitudinal position and a tilting angle of the intersection area (3) by a modulation of the transversal sweeping field.
Collector sweeping method according to at least one of the foregoing claims, wherein the transversal sweeping field is generated with at least two transversal field coils (11, 12, . . . ) circumferentially arranged at an entrance area of the beam collector.
Collector sweeping method according to at least one of the foregoing claims, comprising the step of:
- detecting a temperature distribution in the beam collector (230), and
- controlling the modulation of the transversal sweeping field in dependence on the detected temperature distribution.
Method of generating a microwave, comprising the steps of generating an electron beam, subjecting the electron beam to a magnetic gyrotron field for generating the microwave, and collecting the electron beam, wherein the electron beam is subjected to a collector sweeping method according to at least one of the foregoing claims.
Collector sweeping apparatus (100) being arranged for controlling an electron beam (1) in a beam collector (230), comprising:
- a transversal sweeping coil device (10) being arranged for generating a transversal sweeping field directed perpendicular to a longitudinal direction (z) of the beam collector (230) and providing a tilted, rotating intersection area (3) of the electron beam (1) in the beam collector,
- characterized by
- a modulating device (20, 30) being arranged for a modulation of the transversal sweeping field such that at least one of a longitudinal position and a tilting angle of the intersection area (3) is varied.
Dependencies are inferred from the claim text.