Abnormal ionization in sonoluminescence*
Zhang Wen-Juana),b), An Yua)†
       
Variations of (a) ionization energies of an Ar atom, (b) degrees of ionization, (c) temperatures, and (d) pressures with time, t , in the bubble center during the period of the bubble flash, calculated with the present method (solid line) and the standard method (dotted line).