IPAC2017 - List of Authors (Ozawa, I.)

Paper	Title	Page
THPVA102	Structural Analysis and Evaluation of Actual PC Bridge Using 950 keV/3.95 MeV X-Band Linacs	4701
SUSPSIK029	use link to see paper's listing under its alternate paper code
	H. Takeuchi, R. Yano The University of Tokyo, Tokyo, Japan K. Dobashi, Y. Mitsuya, M. Uesaka The University of Tokyo, Nuclear Professional School, Ibaraki-ken, Japan M. Ishida, Y. Ohshima PWRI, Ibaraki, Japan J. Kusano Accuthera Inc., Kawasaki, Kanagawa, Japan I. Ozawa The University of Tokyo, The School of Engineering, Tokyo, Japan
	Funding: This work was supported by Council for Science, Technology and Innovation(CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP) (Funding agency: JST). In Japan, bridges constructed in the highly economic growth era are facing to aging problem and advanced maintenance methods have been strongly required recently. To meet this demand, we develop the on-site inspection system using 950 keV/3.95 MeV X-band (9.3 GHz) linac X-ray sources. These systems can visualize in seconds the inner states of bridge, including cracks of concrete, location and state of tendons (wires) and other imperfections. We focused on the inspection for wires which are critical to the safety of bridge. At the on-site inspections, the X-ray inspection system exhibited sufficient accuracy to detect the wire's corrosion. We also evaluated the maximum thickness of concrete to which our system can be applied. Using the 950 keV system, we conducted on-site inspection for real bridges and performed structural analysis to evaluate the bearing capacity of the bridge using finite element method. We plan to apply the 3.95 MeV linac for actual bridge inspection to extend the applicable range in 2017. For accurate visualization, the parallel motion CT technique for bridge inspection is in progress. Mitsuru Ueaska et al, On-site nondestructive inspection by upgraded portable 950keV/3.95MeV X-band linac x-ray sources, J. Phys. B: At. Mol. Opt. Phys. 47(2014) 234008 (9pp)
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA102
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Paper

Title

Page

THPVA102

Structural Analysis and Evaluation of Actual PC Bridge Using 950 keV/3.95 MeV X-Band Linacs

4701

SUSPSIK029

use link to see paper's listing under its alternate paper code

H. Takeuchi, R. Yano
The University of Tokyo, Tokyo, Japan
K. Dobashi, Y. Mitsuya, M. Uesaka
The University of Tokyo, Nuclear Professional School, Ibaraki-ken, Japan
M. Ishida, Y. Ohshima
PWRI, Ibaraki, Japan
J. Kusano
Accuthera Inc., Kawasaki, Kanagawa, Japan
I. Ozawa
The University of Tokyo, The School of Engineering, Tokyo, Japan

Funding: This work was supported by Council for Science, Technology and Innovation(CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP) (Funding agency: JST).
In Japan, bridges constructed in the highly economic growth era are facing to aging problem and advanced maintenance methods have been strongly required recently. To meet this demand, we develop the on-site inspection system using 950 keV/3.95 MeV X-band (9.3 GHz) linac X-ray sources*. These systems can visualize in seconds the inner states of bridge, including cracks of concrete, location and state of tendons (wires) and other imperfections. We focused on the inspection for wires which are critical to the safety of bridge. At the on-site inspections, the X-ray inspection system exhibited sufficient accuracy to detect the wire's corrosion. We also evaluated the maximum thickness of concrete to which our system can be applied. Using the 950 keV system, we conducted on-site inspection for real bridges and performed structural analysis to evaluate the bearing capacity of the bridge using finite element method. We plan to apply the 3.95 MeV linac for actual bridge inspection to extend the applicable range in 2017. For accurate visualization, the parallel motion CT technique for bridge inspection is in progress.
* Mitsuru Ueaska et al, On-site nondestructive inspection by upgraded portable 950keV/3.95MeV X-band linac x-ray sources, J. Phys. B: At. Mol. Opt. Phys. 47(2014) 234008 (9pp)

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA102

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)