Plasma and Fusion Research

Volume 13, 2406005 (2018)

Regular Articles

Nondestructive Measurement for Water and Voids in Concrete with Compact Neutron Source
Yoshimasa IKEDA, Yoshie OTAKE and Maki MIZUTA
RIKEN Center for Advanced Photonics, Neutron Beam Technology Team, Wako, Saitama 351-0198, Japan
(Received 11 June 2017 / Accepted 17 October 2017 / Published 9 February 2018)

Abstract

The authors have developed a nondestructive inspection method using backscattered neutrons to detect voids and water in concrete with a RIKEN Accelerator-driven Compact Neutron Source (RANS). In this study, neutrons are emitted to a slab sample that consists of a concrete layer and an asphalt layer, and position distribution of backscattered neutrons are measured at the timing from 0.1 to 0.5 ms. The two-dimensional position of water and voids in the concrete plate under asphalt (5 cm) of the slab sample are detected.

Keywords

nondestructive testing, compact neutron source, back scattering, neutron imaging

DOI: 10.1585/pfr.13.2406005

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