RADIOISOTOPES

Online ISSN: 1884-4111 Print ISSN: 0033-8303
RADIOISOTOPESは日本アイソトープ協会が発行する学術論文誌です
Radioisotopes 74(1): 133-140 (2025)
doi:10.3769/radioisotopes.740109

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低エネルギーX線による版木の表面殺菌とX線撮影—ベトナムへの技術移転—Surface Sterilization and X-ray Radiography of Woodblocks by Low-energy X-rays—Technology Transfer to Vietnam—

片岡 憲昭1，Nguyen Thi Thuy Linh2，内田 海路1，古田 雅一3，久米 民和2Noriaki Kataoka1, Nguyen Thi Thuy Linh2, Kaiji Uchida1, Masakazu Furuta3, Tamikazu Kume2

1 東京都立産業技術研究センター Tokyo Metropolitan Industrial Technology Research Institute

2 ダラット大学 Faculty of Biology, Dalat University

3 大阪公立大学 Osaka Metropolitan University

受付日：2024年8月23日Received: August 23, 2024
受理日：2024年11月11日Accepted: November 11, 2024
発行日：2025年3月15日Published: March 15, 2025
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To sterilize the bacteria on the surface of the woodblocks, low energy X-rays of 150 kV were used to irradiate them without using filters, which was six times faster than general X-ray irradiation methods. Insect damage to the woodblocks could be distinguished from cracks and physical destruction only by visual inspection and simple X-ray radiography. These techniques were manualized and transferred to Vietnam. At that time, 0.5 mGy of X-rays irradiated within the baggage inspection and 9 µSv of cosmic radiation of travel routes had no effect on the film dosimeter and X-ray film.

Key words: protection of cultural properties; surface sterilization; X-ray imaging; radiosensitivity; X-ray baggage inspection

© Japan Radioisotope Association 2025. This is an open access article distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) License (https://creativecommons.org/licenses/by/4.0/)© Japan Radioisotope Association 2025. This is an open access article distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) License (https://creativecommons.org/licenses/by/4.0/)

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