Development of a ferroelectric cathode diode

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LI Ruo-Yun, ZHENG Shu-Xin and TANG Chuan-Xiang. Development of a ferroelectric cathode diode[J]. Chinese Physics C, 2010, 34(8): 1127-1131. doi: 10.1088/1674-1137/34/8/017
LI Ruo-Yun, ZHENG Shu-Xin and TANG Chuan-Xiang. Development of a ferroelectric cathode diode[J]. Chinese Physics C, 2010, 34(8): 1127-1131.  doi: 10.1088/1674-1137/34/8/017 shu
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Received: 2009-10-10
Revised: 2009-12-07
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Development of a ferroelectric cathode diode

    Corresponding author: ZHENG Shu-Xin,

Abstract: 

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 than 200 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 than 250 A/cm2 was obtained, and the current density distribution was also measured.

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