Abstract：We experimentally measure the sodium $D$-lines from the multibubble sonoluminescence in sodium hydroxide aqueous solution. The asymmetric overlapping $D$-lines are successfully decomposed based on the Fourier transform analysis. The line broadening of the decomposed sodium $D$-lines shows the effective temperature of 3600–4500 K and the pressure of 560–1000 atm during sonoluminescence.
Takashi F 2004 Plasma Spectroscopy (New York: Clarendon Press) p 213
[9]
Montaser A and Golightly D W 1992 Inductively Coupled Plasmas in Analytical Atomic Spectrometry (Beijing: People's Medical Publishing House) p 20 (in Chinese)
2017, Vol. 34 
