| 瑞利散射法研究超声喷流二氧化碳团簇尺度轴向分布 |
| |
| 引用本文： | 付鹏涛,韩纪锋,牟艳红,韩丹,杨朝文.瑞利散射法研究超声喷流二氧化碳团簇尺度轴向分布[J].物理学报,2011,60(5):53602-053602. |
| |
| 作者姓名： | 付鹏涛 韩纪锋 牟艳红 韩丹 杨朝文 |
| |
| 作者单位： | 四川大学物理科学与技术学院,辐射物理及技术教育部重点实验室,成都 610064 |
| |
| 基金项目： | 国家自然科学基金(批准号:10535030,10975104)资助的课题 |
| |
| 摘 要： | 针对特定尺度的小锥喷嘴,用瑞利散射方法研究了超声喷流二氧化碳团簇的瑞利散射信号S和团簇尺度N的轴向分布.实验发现,散射信号强度的对数ln(S)随着轴向距离Z的平方根的增大线性减小,团簇尺度最大位置出现在距喷嘴轴向距离4 mm附近,在背压6—17 bar范围内散射信号S与背压P满足S∝P3.6—4.2,测量到最大的团簇约为1.6×104分子/团簇.
关键词：
二氧化碳团簇
轴向分布
团簇尺度
瑞利散射
|
| 关 键 词： | 二氧化碳团簇 轴向分布 团簇尺度 瑞利散射 |
| 收稿时间： | 2010-07-20 |
The axial distribution of carbon dioxide cluster in supersonic gas jet by Rayleigh scattering |
| |
| Fu Peng-Tao,Han Ji-Feng,Mou Yan-Hong,Han Dan,Yang Chao-Wen.The axial distribution of carbon dioxide cluster in supersonic gas jet by Rayleigh scattering[J].Acta Physica Sinica,2011,60(5):53602-053602. |
| |
| Authors: | Fu Peng-Tao Han Ji-Feng Mou Yan-Hong Han Dan Yang Chao-Wen |
| |
| Institution: | College of Physics Science and Technology, Sichuan University, Key laboratory of Radiation Physics and Technology(Sichuan University),Ministry of Education , Chengdu 610064, China;College of Physics Science and Technology, Sichuan University, Key laboratory of Radiation Physics and Technology(Sichuan University),Ministry of Education , Chengdu 610064, China;College of Physics Science and Technology, Sichuan University, Key laboratory of Radiation Physics and Technology(Sichuan University),Ministry of Education , Chengdu 610064, China;College of Physics Science and Technology, Sichuan University, Key laboratory of Radiation Physics and Technology(Sichuan University),Ministry of Education , Chengdu 610064, China;College of Physics Science and Technology, Sichuan University, Key laboratory of Radiation Physics and Technology(Sichuan University),Ministry of Education , Chengdu 610064, China |
| |
| Abstract: | The axial distribution of carbon dioxide clusters in supersonic gas jet was studied by Rayleigh Scattering method. It is found that the logarithm of scattering signal ln(S) decreases linearly with the square root of Z and the position of 4 mm rather than the position nearest the nozzle has the maximum average cluster size. The scattering signal intensity exhibits a power scaling on the backing pressure ranging from 6 to 17 bar , and the power varies from 3.6 to 4.2. The axial cluster size was estimated and the maximum size was found to be 16 000 molecules/cluster. |
| |
| Keywords: | carbon dioxide cluster axial distribution cluster size Rayleigh scattering |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《物理学报》浏览原始摘要信息 |
| 点击此处可从《物理学报》下载免费的PDF全文 |
|
