| Presentation | 2007/1/18 Multibubble-Sonoluminescence and Na-atom Emission from NaCl Solutions Shogo ABE, Yuichi HAYASHI, Pak-Kon CHOI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have measured the spectra of multi-bubble sonoluminescence from Ar-saturated NaCl solutions at the frequencies of 108kHz and 1.0MHz. The intensity of sodium-atom emission observed takes a maximum at the concentration of 2M, which corresponds to the formation of OH radicals measured using KI colorimetric method. High-resolution spectroscopic study was made on sodium D lines for various ultrasonic powers. The effects of ethanol on the sodium D line-width were also investigated. The line-width showed asymmetric broadening toward red region, and depended on the ultrasonic power. The addition of ethanol in the range of 0.5-2mM caused sudden quenching and broadening of sodium D lines. The results indicate that collisions between excited sodium atoms and foreign atoms, that is, argon gas and molecules decomposed from ethanol are responsible for the observed line broadening. This clearly demonstrates that the sodium-atom emission occurs within bubbles. The electronic exciting process of sodium atom is discussed in terms of chemical excitation by OH radicals or H radicals. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | NaCl / sonoluminescence / sodium D lines / OH radicals / line broadening / ethanol |
| Paper # | US2006-95 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 2007/1/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Multibubble-Sonoluminescence and Na-atom Emission from NaCl Solutions |
| Sub Title (in English) | |
| Keyword(1) | NaCl |
| Keyword(2) | sonoluminescence |
| Keyword(3) | sodium D lines |
| Keyword(4) | OH radicals |
| Keyword(5) | line broadening |
| Keyword(6) | ethanol |
| 1st Author's Name | Shogo ABE |
| 1st Author's Affiliation | Department of Physics, Meiji University() |
| 2nd Author's Name | Yuichi HAYASHI |
| 2nd Author's Affiliation | Department of Physics, Meiji University |
| 3rd Author's Name | Pak-Kon CHOI |
| 3rd Author's Affiliation | Department of Physics, Meiji University |
| Date | 2007/1/18 |
| Paper # | US2006-95 |
| Volume (vol) | vol.106 |
| Number (no) | 481 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |