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A Smith-Purcell radiation source using a grating structure modified in a cylindrical manner was considered to utilize a high power relativistic annular electron beam. The output characteristics were confirmed by numerical simulations assuming a 500 keV-5 kA electron beam. The experiment is being prepared.
A RBVVO is capable of high efficiency by a relatively long interaction region between a backward wave and an electron beam. But the pulse shortening problem occurs frequently in experiments of RBWOs because of the mode competition, the RF breakdown and so on (S.D. Korovin et al., 2000). In our previous research of the 100MW RBWO, it shows that the mode competition can depends on the beam radii and...
A mode competition phenomenon of gigawatts-nanonoseconds magnetically insulated transmission line oscillator (MILO) is experimentally investigated. A pulsed power system of 500 kV-35 kA and 130 ns pulse length is used for generating the relativistic electron beam. The microwave with peak power of 2.8 GW, pulse duration of 70 ns, and frequency of 1.14 GHz is observed. A spatiotemporal measurement using...
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