Speaker
Description
Exploration of accelerator technologies in the millimeter-wave regime offers a promising route to achieve extremely high accelerating gradients. Owing to the high shunt impedance and short filling times of mm-wave accelerating structures relative to conventional S- and C-band systems, GV/m-level accelerating gradients become attainable. Mm-wave accelerator concepts are therefore of strong interest for applications including future linear colliders, charged-particle therapy, compact X-ray free-electron lasers (XFELs), and ultrafast electron diffraction (UED).
We present the conceptual design of a pulsed 140 GHz gyroklystron amplifier intended as an RF power source for mm-wave accelerator systems. The interaction circuit adopts a two-cavity configuration composed of an input cavity, a drift section, and an output cavity. The electron beam is generated by a triode-type magnetron-injection gun (MIG) that provides operational flexibility, enabling adjustment of beam parameters and stable performance across a broad operating range. Design details of the MIG and the two-cavity interaction structure will be presented.
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