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Periodic permanent magnet focused klystron

United States Patent

April 21, 2015
View the Complete Patent at the US Patent & Trademark Office
A periodic permanent magnet (PPM) klystron has beam transport structures and RF cavity structures, each of which has permanent magnets placed substantially equidistant from a beam tunnel formed about the central axis, and which are also outside the extent of a cooling chamber. The RF cavity sections also have permanent magnets which are placed substantially equidistant from the beam tunnel, but which include an RF cavity coupling to the beam tunnel for enhancement of RF carried by an electron beam in the beam tunnel.
Ferguson; Patrick (Oakland, CA), Read; Michael (Plainfield, VT), Ives; R. Lawrence (San Mateo, CA)
Calabazas Creek Research, Inc. (San Mateo, CA)
14/ 059,641
October 22, 2013
The present invention was developed under the U.S. Department of Energy grant No. DE-SC0004558. The government has certain rights in this invention.