Design and 3-D Simulations of a 10-kW/28-GHz Gyrotron With a Segmented Emitter Based on Controlled Porosity-Reservoir Cathodes

作者：Malygin Anton^*; Illy Stefan; Pagonakis Ioannis Gr; Piosczyk Bernhard; Kern Stefan; Weggen Joerg; Thumm Manfred; Jelonnek John; Avramides Konstantinos A; Ives Robert Lawrence; Marsden David; Collins George

来源：IEEE Transactions on Plasma Science, 2013, 41(10): 2717-2723.

DOI：10.1109/TPS.2013.2255069

• Cathodes
• electron gun
• emitter ring
• gyrotron
• nonuniform emission

In this paper, the design of a 10-kW/28-GHz gyrotron is presented. The main characteristic of the new gyrotron is the emitter ring, which is assembled from twelve individually supplied emitters based on controlled-porosity reservoir (CPR) technology. The main goal is to evaluate the use of CPR emitters for gyrotron applications. In addition, the azimuthally segmented emitter ring could be used for the generation of controlled nonuniform electron beams. In this way, it is planned to experimentally study the effect of nonuniform emission on the gyrotron operation. In this context, the effect of nonuniform emission on the beam quality is numerically investigated using the 3-D, electrostatic, parallel-code Ariadne, while the effect of the degraded beam on mode coupling and stability of the wave-particle interaction in the cavity is numerically studied using the nonstationary, self-consistent multimode cavity code Euridice.

• 出版日期2013-10