【摘 要】
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As a promising kind of high current cold cathode,the Ferroelectric Cathode(FEC)has several significant advantages,such as a controllable trigger time,lower vacu
【机 构】
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Department of Engineering Physics, Tsinghua University, Beijing 100084, China
论文部分内容阅读
As a promising kind of high current cold cathode,the Ferroelectric Cathode(FEC)has several significant advantages,such as a controllable trigger time,lower vacuum requirement and large emitting area fabricability.The emitting current density of the FEC fabricated at Tsinghua University was more than200 A/cm2.In order to make the ferroelectric cathode into practical applications,a high current density diode using a ferroelectric cathode was designed,based on the PIC simulation.The performance of the FEC diode was investigated experimentally.When the applied diode voltage was 60 kV,a current density of more than250 A/cm2 was obtained,and the current density distribution was also measured.
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