| 激光诱导击穿光谱在核分析实验教学中的应用 |
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| 引用本文： | 孙少华,高健,刘田广,任晓萱,胡碧涛,刘作业.激光诱导击穿光谱在核分析实验教学中的应用[J].大学物理,2023,42(1):14-18. |
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| 作者姓名： | 孙少华 高健 刘田广 任晓萱 胡碧涛 刘作业 |
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| 作者单位： | 兰州大学 核科学与技术学院，甘肃 兰州730000 |
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| 基金项目： | 教育部第二批新工科研究与实践项目( E-HJFZQG20202431)以及兰州大学教育教学改革研究项目（2020-222590）资助 |
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| 摘 要： | 为了适应核物理与核分析实验教学的需要，本文将激光诱导激光光谱测量以创新实验的形式引入到核工程类专业实验中.通过将纳秒激光脉冲与不同靶材作用，测量样品中各类元素的LIBS谱线，结合理论分析提取激光等离子体的电子温度和等离子体密度.假设单一元素谱线获得的等离子体密度为混合样品等离子体密度，计算得到未知重元素Fe的原子谱线展宽参数.
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| 关 键 词： | 实验实践教学 激光诱导激光光谱 谱线展宽参数 |
| 收稿时间： | 2022-06-07 |
| 修稿时间： | 2022-07-27 |
Application of laser-induced breakdown spectroscopy in experimental teaching of nuclear analysis |
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| SUN Shao-hua,GAO Jian,LIU Tian-guang,REN Xian-xuan,HU Bi-tao,LIU Zuo-ye.Application of laser-induced breakdown spectroscopy in experimental teaching of nuclear analysis[J].College Physics,2023,42(1):14-18. |
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| Authors: | SUN Shao-hua GAO Jian LIU Tian-guang REN Xian-xuan HU Bi-tao LIU Zuo-ye |
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| Institution: | School of Nuclear Science and Technology, Lanzhou University, Lanzhou, Gansu 730000, China |
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| Abstract: | In order to adapt the requirement of experimental teaching in nuclear physics and nuclear analysis, laser-induced breakdown spectroscopy (LIBS) is introduced to the experiments of nuclear engineering as an innovative demonstration experiment. Experimental measurement of LIBS spectra is performed during the interaction between nano-second laser pulses with different targets. The electronic temperature and density of laser plasma are extracted combining with theoretical analysis. The plasma density obtained from the characteristic spectral line of solo element is assumed to the plasma density of the mixed target, and the unknown spectral broadening parameter of Fe(I) is calculated. |
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| Keywords: | practical and experimental courses laser-induced breakdown spectroscopy parameter of spectral broadening |
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