Design of a novel electron gun based on photoemission of carbon nanotubes

SUN Qilong~

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Design of a novel electron gun based on photoemission of carbon nanotubes

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- Design of a novel electron gun based on photoemission of carbon nanotubes
- NUCLEAR TECHNIQUES Issue 11, (2007)
- 作者机构：
  
  1. 中国科学院上海应用物理研究所
  2. 中国科学院上海应用物理研究所上海 201800 中国科学院研究生院,北京,100049
- 作者简介：
- 基金信息：
  
  国家重点基础研究发展计划(2002CB713600)资助
- DOI：
  CLC： O462.3
- Published：01 November 2007
- 稿件说明：
移动端阅览
[1]孙启龙,王兴涛,林国强,戴志敏.碳纳米管光场致发射新型电子枪的初步方案设计[J].核技术,2007(11):947-951.

SUN Qilong~. Design of a novel electron gun based on photoemission of carbon nanotubes[J]. Nuclear techniques, 2007, (11): 947-951.
[1]孙启龙,王兴涛,林国强,戴志敏.碳纳米管光场致发射新型电子枪的初步方案设计[J].核技术,2007(11):947-951. DOI：

SUN Qilong~. Design of a novel electron gun based on photoemission of carbon nanotubes[J]. Nuclear techniques, 2007, (11): 947-951. DOI：

摘要

本文给出了一种基于碳纳米管光场致发射机制的新型电子枪的设计方案。该电子枪的枪体采用Pierce枪结构

加200kV直流高压

阴极材料为碳纳米管

驱动激光波长800—850nm

脉冲峰值电流为6A

平均电流为12mA。与传统的光阴极电子枪相比

这种基于碳纳米管光场致发射机制的新型电子枪具有结构简单、量子效率高等优点。此外

本文还介绍了正在搭建的该电子枪实验平台。电子枪的性能

特别是阴极寿命和量子效率将在实验深入研究。

Abstract

The paper reports the design of a novel electron gun based on photoemission of carbon nanotubes.The electron gun

using the traditional Pierce structure

can generate 6A peak pulse beam current and average beam cur- rent of 12mA when the applied DC voltage is 200kV and the driven laser’s wavelength is 800-850nm.This novel electron gun has the simply structure and high quantum efficiency relative to traditional photocathode electron gun. Additionally the electron gun test platform undergoing was introduced in the paper.The electron performance espe- cially the lifetime and the quantum efficiency of the cathode will be studied thoroughly.

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Related Institution

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China Institute of Atomic Energy

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University of Chinese Academy of Sciences

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