A major research activity is being pursued at FMT to develop high-current, short-duration pulses of electron beams for injectors in electron accelerators as well as for microwave generation in klystrons and related devices. Design and development of gun cavities, in the frequency range of 1 to 12 GHz, are conducted through a comprehensive task including simulation, analytical and experimental studies. With the goal to build high-power, high-frequency klystrons, one of our most recent efforts is focused on developing an X-band cavity at about 9 GHz for generating high-current, bunched micropulses of electron beams. The full system has been designed and built, and it is running reliably. An average beam current density > 20A/cm{sup}2 over a macropulse, or 400 A/cm{sup}2 over a micropulse, has been measured for a modest input rf-power, ～60 kW, into the gun cavity. In addition, experiments are being conducted to develop an electron gun at 1.3 GHz, with gating capabilities, and match beam requirements for Argonne Wakefield Accelerator.
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机译：FMT正在开发一个主要的研究活动，以开发电子加速器中喷射器的高电流，短持续时间脉冲，以及Klystrons和相关设备中的微波生成。在1到12 GHz的频率范围内的避风腔的设计和开发是通过综合任务进行的，包括模拟，分析和实验研究。通过实现高功率，高频klystrons的目标，我们最近的努力之一专注于在大约9 GHz的X波段腔开发，以产生高电流，束缚的电子束微型微循环。完整的系统已经设计和构建，它正在可靠地运行。在Macropulse上的平均光束电流密度> 20a / cm {sup} 2，或在微型电源上的400a / cm {sup} 2，用于适度的输入射频电源，〜60kw进入枪腔。此外，正被进行的实验中在1.3 GHz到开发的电子枪，与选通的功能，和匹配阿贡韦克菲尔德加速器束的要求。
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