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Imaging Damage in Steel Using a Diamond Magnetometer
https://repo.qst.go.jp/records/82172
https://repo.qst.go.jp/records/82172616fb5eb-9948-4e44-bbbf-a0dcbd5033d5
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-03-15 | |||||
| タイトル | ||||||
| タイトル | Imaging Damage in Steel Using a Diamond Magnetometer | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Q. Zhou, L.
× Q. Zhou, L.× L. Patel, R.× C. Frangeskou, A.× Nikitin, A.× L. Green, B.× G. Breeze, B.× Shinobu, Onoda× Isoya, J.× W. Morley, G.× Shinobu, Onoda |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We demonstrate a simple, robust, and contactless method for nondestructive testing of magnetic materials such as steel. This uses a fiber-coupled magnetic sensor based on nitrogen-vacancy centers (NVCs) in diamond without magnetic shielding. Previous NVC magnetometry has sought a homogeneous bias magnetic field on the diamond to improve the sensitivity. In contrast, here we show that the spatial resolution for imaging is improved by applying an inhomogeneous magnetic field to the steel even though this leads to an inhomogeneous magnetic field on the diamond. Structural damage in the steel distorts the inhomogeneous magnetic field and by detecting this distortion we reconstruct the damage profile through quantifying the shifts in the NVC Zeeman splitting. With a 1-mm magnet as the source of our inhomogeneous magnetic field, we achieve a high spatial resolution of 1 mm in the plane parallel and 0.1 mm in the direction perpendicular to the surface of the steel. This works even when the steel is covered by a nonmagnetic material. The lift-off distance of our sensor head from the surface of 316 stainless steel is up to 3 mm. | |||||
| 書誌情報 |
Physical Review Applied 巻 15, p. 024015, 発行日 2021-02 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2331-7019 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1103/PhysRevApplied.15.024015 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.15.024015 | |||||
