| 激光驱动的光阴极研究 |
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| 引用本文： | 钱民权 杨茂荣. 激光驱动的光阴极研究[J]. 强激光与粒子束, 1997, 9(2): 185-191 |
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| 作者姓名： | 钱民权 杨茂荣 |
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| 作者单位： | 中国工程物理研究院应用电子学研究所,成都527信箱 610003 |
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| 基金项目： | 国家863激光技术领域资助 |
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| 摘 要： | 论述激光驱动的光阴极实验研究。包括直流高压真空试验系统，测试装置和实验结果及其分析讨论。ＬａＢ６、纯金属铜（Ｃｕ）和钐（Ｓｍ）以及半导体碲化铯（Ｃｓ２Ｔｅ）三类有代表性光阴极的量子效率分别是６×１０－４、３．８×１０－４、１１．６×１０－４和（２～６）×１０－２。利用ＫｒＦ激光，１８ｋＶ极间电压下饱和电流密度分别为７０Ａ／ｃｍ２、５０Ａ／ｃｍ２、１０２Ａ／ｃｍ２和５７Ａ／ｃｍ２。用多孔板法测得的归一化发射度约１０πｍｍ·ｍｒａｄ。
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| 关 键 词： | 光阴极 量子效率 电子束 发射度 亮度 激光驱动 photocathode quantum efficiency beam emittance brightness |
| 收稿时间： | 1900-01-01; |
INVESTIGATION OF PHOTOCATHODE DRIVEN BY A LASER |
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| Qian Minquan,Yang Maorong,Pan Qing,Li Zhenhong,Shi Jiangjun,Hu Kesong,Den Renpei,Tao Zucong,Cui Li and Huang Yong Institute of Applied Electronics,CAEP,P.O.Box ,No.,Chengdu. INVESTIGATION OF PHOTOCATHODE DRIVEN BY A LASER[J]. High Power Laser and Particle Beams, 1997, 9(2): 185-191 |
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| Authors: | Qian Minquan Yang Maorong Pan Qing Li Zhenhong Shi Jiangjun Hu Kesong Den Renpei Tao Zucong Cui Li Huang Yong Institute of Applied Electronics CAEP P.O.Box No. Chengdu |
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| Affiliation: | Qian Minquan,Yang Maorong,Pan Qing,Li Zhenhong,Shi Jiangjun,Hu Kesong,Den Renpei,Tao Zucong,Cui Li and Huang Yong Institute of Applied Electronics,CAEP,P.O.Box 527,No.58,Chengdu,610003 |
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| Abstract: | The experimental studies of photocathode driven by a laser are reported in this paper. The experimental systems including the D-C voltage vacuum chamber and measurement apparatus are given. Also we will present the experimental results and discussions of LaB6, pure metals (Cu,Sm) and Cs2Te semiconductor photocathode. The quantum efficiencies of photocathodes are 6´ 10- 4、3.8´ 10- 4、11.6´ 10- 4 and (2~6) ´ 10- 2, respectively, the corresponding photocurrent densities of 70A/cm2、50 A/cm2、102A/cm2 and 57A/cm2 are obtained. Using the pepper pot method, the normalized beam emittances for these materials are about 10p mm· mrad and the corresponding normalized brightnesses are about 1010A/m2× rad2. |
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| Keywords: | photocathode quantum efficiency beam emittance beam brightness |
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