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Paper Abstract and Keywords
Presentation 2008-10-31 11:50
Alkali-metal atom emission and continuum emission in sonoluminescence
Pak-Kon Choi, Shogo Abe (Meiji Univ.) US2008-60
Abstract (in Japanese) (See Japanese page) 
(in English) Sonoluminescence spectrum from alkali-metal aqueous solutions consists of continuum emission and line emission from alkali-metal atoms. The line emission is observed in multi-bubble sonoluminescence and not in single-bubble sonoluminescence. We performed spatio-temporal decomposition of the two kinds of emission to investigate origin of the emissions. Images of MBSL at 138 kHz from NaCl solution taken by a digital camera were analyzed to obtain red and blue components. The red component is corresponding to Na-atom emission (Na D lines), and the blue one to the continuum emission. The range of the Na-atom emission in the images extended wider than that of the continuum emission. Optical pulses of sonoluminescence spectrally divided using a dichroic mirror were detected with a high-sampling rate oscilloscope. Timing distributions of the pulses from both emissions were compared and the distribution from the Na-atom emission was broader than that from the continuum. The results indicate the following conclusion. The Na-atom emission is come from those bubbles which have a wider radius distribution and lower collapse temperature. The continuum emission is arisen from those bubbles which have a narrower radius distribution and higher collapse temperature.
Keyword (in Japanese) (See Japanese page) 
(in English) sonoluminescence / alkali-metal atom / sodium D lines / continuum / bubbles / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 266, US2008-60, pp. 53-56, Oct. 2008.
Paper # US2008-60 
Date of Issue 2008-10-23 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee US  
Conference Date 2008-10-30 - 2008-10-31 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To US 
Conference Code 2008-10-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Alkali-metal atom emission and continuum emission in sonoluminescence 
Sub Title (in English)  
Keyword(1) sonoluminescence  
Keyword(2) alkali-metal atom  
Keyword(3) sodium D lines  
Keyword(4) continuum  
Keyword(5) bubbles  
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Keyword(8)  
1st Author's Name Pak-Kon Choi  
1st Author's Affiliation Meiji University (Meiji Univ.)
2nd Author's Name Shogo Abe  
2nd Author's Affiliation Meiji University (Meiji Univ.)
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Speaker Author-1 
Date Time 2008-10-31 11:50:00 
Presentation Time 20 minutes 
Registration for US 
Paper # US2008-60 
Volume (vol) vol.108 
Number (no) no.266 
Page pp.53-56 
#Pages 4 
Date of Issue 2008-10-23 (US) 

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