| 铁电阴极材料发射电流密度测试电路的分析改进 |
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| 引用本文： | 陈忠道,郭曙光,张树人,蔡雪梅,张恩官.铁电阴极材料发射电流密度测试电路的分析改进[J].仪器仪表学报,2005,26(9):898-901. |
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| 作者姓名： | 陈忠道 郭曙光 张树人 蔡雪梅 张恩官 |
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| 作者单位： | 电子科技大学微电子与固体电子学院 成都610054
(陈忠道，郭曙光，张树人，蔡雪梅)，中国工程物理研究院流体物理研究所 绵阳610003(张恩官) |
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| 基金项目： | 国家自然科学基金(60471027)资助项目。 |
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| 摘 要： | 对于铁电阴极材料,电流发射密度是其关键性能指标。发射电流密度越大,发射出电子能量越高,则材料可以做为强流电子束源应用。然而由于受地电流耦合信号的影响,往往不易测得样品的真实发射电流密度信号。为此,通过实践探讨,对已有的常规测试电路进行了优化,解决了地电流干扰问题,最终确定了较好的测试电路,获得比较满意的测试信号结果。
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| 关 键 词： | 铁电阴极 发射电流密度 测试电路 测试信号 |
| 修稿时间： | 2004年2月1日 |
Analysis of the Testing Electronic Circuit on the Electron Emission of the Ferroelectric Cathode Materials |
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| Chen Zhongdao Guo Shuguang Zhang Shuren Cai Xuemei Zhang Enguan.Analysis of the Testing Electronic Circuit on the Electron Emission of the Ferroelectric Cathode Materials[J].Chinese Journal of Scientific Instrument,2005,26(9):898-901. |
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| Authors: | Chen Zhongdao Guo Shuguang Zhang Shuren Cai Xuemei Zhang Enguan |
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| Affiliation: | Chen Zhongdao~1 Guo Shuguang~1 Zhang Shuren~1 Cai Xuemei~1 Zhang Enguan~2 ~1 |
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| Abstract: | For the ferroelectric cathode materials,the higher the electron emission density is,and the higher the electron energy is.Then the materials can be used with the high-energy electron beam resource.Thus the electron density is the crucial parameter for the ferroelectric cathode material,which is greatly dependent on the testing electronic circuit.Because of the influence of the coupled signal led by the earth-current,it is difficult to obtain the true signal of the samples.The coupled signal was screened,a better electronic circuit was emended and the content results were obtained with it. |
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| Keywords: | Ferroelectric cathode Emission current density Testing electronic circuit Testing electronic signal |
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