| 多碱光电阴极单色光电流测试技术研究 |
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| 引用本文： | 钱芸生,富容国,徐登高,常本康. 多碱光电阴极单色光电流测试技术研究[J]. 南京理工大学学报(自然科学版), 1999, 23(1): 34-37 |
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| 作者姓名： | 钱芸生 富容国 徐登高 常本康 |
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| 作者单位： | 南京理工大学电子工程与光电技术学院,南京,210094 |
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| 摘 要： | 多碱光电阴极的单色光电流实质上反映的是其在该单色光照射下的量子产额。该文阐述了单色光电流的测试原理和影响量子产额的因素，介绍了多碱光电阴极多信息量测试系统，该系统可在多碱光电阴极制备过程中在线测试、处理阴极的单色光电流，测得的曲线有助于分析和指导工艺，从中还可得到光电子逸出深度的信息。该文给出并分析了在该系统应用于玻璃阴极实验管制备过程中的测试结果。
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| 关 键 词： | 多碱光电阴极 量子产额 光电子逸出深度 |
The Research on the Technology Measuring the Monochromatic Photocurrent of Multiakali Photocathodes |
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| Qian Yunsheng,Fu Rongguo,Xu Denggao,Chang Benkang. The Research on the Technology Measuring the Monochromatic Photocurrent of Multiakali Photocathodes[J]. Journal of Nanjing University of Science and Technology(Nature Science), 1999, 23(1): 34-37 |
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| Authors: | Qian Yunsheng Fu Rongguo Xu Denggao Chang Benkang |
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| Abstract: | The monochromatic photocurrent of photocathode actually reflects its quantum yield under the monochromatic light .The principle measuring monochromatic photocurrent and factors influencing quantum yield are expounded in this paper .The system measuring multi parameter of photocathodes is presented . The system can on line measure and deal with the monochromatic photocurrent of cathodes. The measured curves are valuable to analyzing and directing technology producing photocathodes . The photoelectrons escaped depth can be estimated by the curves . The results measuring the parameters of cathodes in the glass tubes are given and analyzed . |
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| Keywords: | multiakali photocathodes quantum yields photoelectrons escape depth |
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