低能量MHz重复频率短脉冲电子枪
A low-energy MHz repetition rate short-pulse electron gun
AI总结：
本文介绍一种MHz重复频率、纳秒脉冲的低能量电子枪，利用Pierce栅极与阳极结合提取电子，并通过高速栅极脉冲产生小于5ns的脉冲，已用(e,2e)谱仪验证并用于飞行时间衰减测量。
摘要：
描述了一种能够产生MHz重复频率纳秒脉冲的脉冲电子枪。该电子枪使用Pierce栅极与阳极相结合，从钨丝阴极提取电子。从阳极出射的电子通过两个三孔径透镜进行加速和聚焦，形成电子束。通过施加一个高速栅极脉冲，该脉冲在栅极/阳极组合的提取电压区域中过渡，电子枪产生时间宽度小于5 ns的电子脉冲。脉冲电子束在驱动脉冲的上升沿和下降沿均产生。出射电子束的特性已使用(e,2e)符合谱仪进行测定，并给出了用于飞行时间衰减测量的实例。
英文摘要：
A pulsed electron gun that can produce MHz repetition rate nanosecond pulses is described. The gun uses a Pierce grid in combination with an anode to extract electrons from a tungsten filament cathode. The electrons emerging from the anode are accelerated and focused using two triple-aperture lenses to form a beam. By applying a high speed grid pulse that transitions through the extraction voltage region of the grid/anode combination, pulses of electrons are produced from the gun that have temporal widths less than 5 ns. The pulsed beams are produced at both rising and falling edges of the driving pulse. The characteristics of the emerging electron beams have been determined using an (e,2e) coincidence spectrometer and examples where they are used for time of flight decay measurements are given.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
