書誌事項
- タイトル別名
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- The detection of hidden iron items in a natural sand beach based on magnetic survey: an example at Yayorigahama Beach in Okayama Prefecture, Japan
- 公開日
- 2024
- DOI
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- 10.3408/jafst.846
- 公開者
- 日本法科学技術学会
この論文をさがす
説明
<p> In order to detect buried iron items in a natural sand beach, we conducted a magnetic survey with an Overhauser magnetometer. First, a three-meter-long survey line was laid at Yayorigahama Beach in Okayama Prefecture. A steel can, a stainless steel knife, and a plug-in multi-tap were buried at 10 cm. Magnetic field intensity (MFI) and the magnetic susceptibility (MS) were measured on the beach surface. The MS values indicate a relatively higher value at the site where the steel can was buried 10 cm in burial depths, while such an increase was found at the depths of 20 cm, 30 cm, 40 cm and 50 cm. The peak of MFI could be recognized at the depths of 10 cm to 40 cm. This implies that the MFI test with an Overhauser magnetometer is more effective than the MS measurement. Magnetic anomalies of MFI were recognized on another survey line in Yayorigahama Beach where reinforcing iron bars were found at a depth of 90 cm. Our results indicate that the hidden iron items could be detected using an Overhauser magnetometer in the sand beach.</p>
収録刊行物
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- 日本法科学技術学会誌
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日本法科学技術学会誌 29 (1), 63-75, 2024
日本法科学技術学会
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詳細情報 詳細情報について
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- CRID
- 1390861936166330240
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- ISSN
- 18814689
- 18801323
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
