Abnormal ionization in sonoluminescence  

作　　者：张文娟 安宇 

机构地区：[1]Department of Physics, Tsinghua University [2]High School Affiliated to Shanghai Jiao Tong University (Jia Ding Campus)

出　　处：《Chinese Physics B》2015年第4期456-462,共7页中国物理B（英文版）

基　　金：Project supported by the Research Fund for the Doctoral Program of Higher Education of China(Grant No.20120002110031);the National Natural Science Foundation of China(Grant No.11334005)

摘　　要：Sonoluminescence is a complex phenomenon, the mechanism of which remains unclear. The present study reveals that an abnormal ionization process is likely to be present in the sonoluminescing bubble. To fit the experimental data of previous studies, we assume that the ionization energies of the molecules and atoms in the bubble decrease as the gas density increases and that the decrease of the ionization energy reaches about 60%-70% as the bubble flashes, which is difficult to explain by using previous models.Sonoluminescence is a complex phenomenon, the mechanism of which remains unclear. The present study reveals that an abnormal ionization process is likely to be present in the sonoluminescing bubble. To fit the experimental data of previous studies, we assume that the ionization energies of the molecules and atoms in the bubble decrease as the gas density increases and that the decrease of the ionization energy reaches about 60%-70% as the bubble flashes, which is difficult to explain by using previous models.

关 键 词：SONOLUMINESCENCE IONIZATION ionized gas 

分 类 号：O482.31[理学—固体物理]