核融合原型炉ブランケット冷却管渦電流探傷試験におけるプローブ方式によるきず検出性能比較

英字タイトル:
Influence of probe types on detection capability of eddy current testing to blanket cooling tube of fusion prototype reactor
著者:
加子瑞騎葛玖浩冨澤拓真（東北大）野澤貴史（量研機構）遊佐訓孝（東北大）
発刊日: 2021年7月 6日
公開日: 2021年9月30日

カテゴリ: 第17回

キーワードタグ:
ECTFerromagneticFusion reactorRAFMSN ratio

概要

This study investigated the influence of probe types on the detection capability of eddy current testing technique against the flaws on F82H steel. Three surface slits were fabricated in F82H specimens with a thickness of 10 mm. The slit depth is 0.5, 1, and 3 mm. The slits were detected by pancake probe, vertical pancake probe, uniform probe, and plus point probe. The signal to noise ratio of used probes was calculated and compared. The greatest signal to noise ratio was plus point probe, followed in order by vertical pancake probe, uniform and pancake probe. Even the signal to noise ratio against the slit depth 0.5 mm of pancake probe was 13.5, 10 times bigger than noise. All slits could be detected with all probes.