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Paper Abstract and Keywords
Presentation 2017-01-19 14:50
Method of simple screening Measurement for Radiation Wireless Monitoring by Applying Non-linear Estimation
Yoshitsugu Nakagawa, Chisato Murakami (TIRI), Kazuyuki Mori, Haruhiko Sato (ING) ASN2016-74
Abstract (in Japanese) (See Japanese page) 
(in English) Five years have passed since the Fukushima nuclear power plant accident, and the decontamination project in disaster areas led by related ministries and agencies achieved certain results mainly in the residential area. Meanwhile, in radiation measurement after decontamination in nuclear disaster areas affected by nuclear power plants, it is known that the local high dose sites called hot spots are scattered. The measurement method of efficient and simple and also different from conventional method is required in order to search for local hot spot factors. In study, this paper proposes the method of using inference model possessed nonlinearity as the way to minimize the influence of both mechanical and stochastic noise included in the sensors and data regarding time-series data monitored by using external sensors. Furthermore, we apply this method to data monitored while moving at a constant speed in order to realize more efficient radiation measurement this time. There are many methods including the Newton method for numerical analysis in nonlinear characteristics, which are generally represented as multidimensional nonlinear function models. And also determining the specified model from the time series data is to determine the parameters of its model. In this paper, we presume the parameters of the model with repeating the least squares method computation steps multiple times on the n-number of transition from the starting point of searching in time series data based on a function model.
Keyword (in Japanese) (See Japanese page) 
(in English) Radiation decontamination / Wireless monitoring / Model inference / Hotspot / Dynamic measurement / Nonlinear least-squares method / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 407, ASN2016-74, pp. 31-36, Jan. 2017.
Paper # ASN2016-74 
Date of Issue 2017-01-12 (ASN) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 ASN MoNA MICT  
Conference Date 2017-01-19 - 2017-01-20 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To ASN 
Conference Code 2017-01-ASN-MoNA-MICT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Method of simple screening Measurement for Radiation Wireless Monitoring by Applying Non-linear Estimation 
Sub Title (in English)  
Keyword(1) Radiation decontamination  
Keyword(2) Wireless monitoring  
Keyword(3) Model inference  
Keyword(4) Hotspot  
Keyword(5) Dynamic measurement  
Keyword(6) Nonlinear least-squares method  
1st Author's Name Yoshitsugu Nakagawa  
1st Author's Affiliation Tokyo Metropolitan Industrial Technology Research Institute (TIRI)
2nd Author's Name Chisato Murakami  
2nd Author's Affiliation Tokyo Metropolitan Industrial Technology Research Institute (TIRI)
3rd Author's Name Kazuyuki Mori  
3rd Author's Affiliation ING CO.,LTD. (ING)
4th Author's Name Haruhiko Sato  
4th Author's Affiliation ING CO.,LTD. (ING)
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Date Time 2017-01-19 14:50:00 
Presentation Time 25 
Registration for ASN 
Paper # IEICE-ASN2016-74 
Volume (vol) IEICE-116 
Number (no) no.407 
Page pp.31-36 
#Pages IEICE-6 
Date of Issue IEICE-ASN-2017-01-12 

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