Purpose: The purpose of this study was to evaluate the protective performance of several new radiation-protective clothing and to clarify issues of quality control. Methods: The composition of the shielding elements was analyzed using X-ray fluorescence analysis, and the energy spectrum of transmitted X-rays was measured. Furthermore, the lead equivalent and uniformity were measured from the transmitted X-ray doses according to Japanese industrial standards (JIS). Uniformity was evaluated by transmitting X-ray images of each radiation protective clothing in addition to the conventional method. Results: The energy spectrum showed K-absorption edges of lead, bismuth, tin, etc., which were detected in the composition analysis. The multi-layered protective material maintained higher shielding ability at high tube voltages. In addition, X-ray images of the radiation-protective clothing showed uneven density and dots, and the differences in uniformity measurement methods and points that didn’t meet the required shielding capacity were seen. Conclusion: The current JIS does not allow accurate evaluation of the lead equivalent and uniformity, so visual evaluation of X-ray images is important. It is necessary to establish standardized standards for quality control performed by each facility.
"},{"@language":"ja","@value":"【目的】本研究では複数の新しい放射線防護衣の防護性能を評価し，品質管理の課題を明らかにすることを目的とした．【方法】蛍光X線分析により遮蔽元素の組成分析をし，透過X線のエネルギースペクトルを測定し評価した．更に，日本産業規格（Japanese industrial standards: JIS）に従い防護衣を透過した線量から鉛当量，均一度を評価した．均一度について従来の手法に加え透過X線画像からも評価した．【結果】エネルギースペクトルでは組成分析で検出された鉛やビスマス，錫等のK吸収端がみられた．多層構造の防護素材のほうが高管電圧でも高い遮蔽能力を維持した．また，防護衣のX線画像から濃度のムラや点状斑がみられ，均一度の測定法による差異や必要遮蔽能力に満たない点が認められた．【結語】現状のJIS規格では防護衣の鉛当量や不均一性を正確に評価できないという問題があるため，X線画像上での視覚評価が重要となる．各施設が行う品質管理にて，標準化された基準が必要である．
"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410583037803432833","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Yano Yuji"},{"@language":"ja","@value":"矢野 祐二"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"九州大学大学院医学系学府保健学専攻医用量子線科学分野"},{"@language":"en","@value":"Division of Medical Quantum Science, Department of Health Science, Graduate School of Medical Science, Kyushu University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410583037803432704","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Fujibuchi Toshioh"},{"@language":"ja","@value":"藤淵 俊王"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"九州大学大学院医学研究院保健学部門医用量子線科学分野"},{"@language":"en","@value":"Division of Medical Quantum Science, Department of Health Science, Faculty of Medical Science, Kyushu University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410583037803432832","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Arakawa Hiroyuki"},{"@language":"ja","@value":"荒川 弘之"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"九州大学大学院医学研究院保健学部門医用量子線科学分野"},{"@language":"en","@value":"Division of Medical Quantum Science, Department of Health Science, Faculty of Medical Science, Kyushu University"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"03694305"},{"@type":"EISSN","@value":"18814883"},{"@type":"CODEN","@value":"NIPHAP"},{"@type":"NDL_BIB_ID","@value":"000000018960"},{"@type":"ISSN","@value":"03694305"},{"@type":"LISSN","@value":"03694305"},{"@type":"NCID","@value":"AN00197784"}],"prism:publicationName":[{"@language":"en","@value":"Japanese Journal of Radiological Technology"},{"@language":"ja","@value":"日本放射線技術学会雑誌"},{"@language":"en","@value":"Nippon Hoshasen Gijutsu Gakkai Zasshi"},{"@language":"en","@value":"Jpn. J. Radiol. Technol."},{"@language":"ja","@value":"日放技学誌"}],"dc:publisher":[{"@language":"en","@value":"Japanese Society of Radiological Technology"},{"@language":"ja","@value":"公益社団法人 日本放射線技術学会"}],"prism:publicationDate":"2024","prism:volume":"80","prism:number":"9","prism:startingPage":"944","prism:endingPage":"954"},"reviewed":"false","url":[{"@id":"http://id.ndl.go.jp/bib/033746256"},{"@id":"https://ndlsearch.ndl.go.jp/books/R000000004-I033746256"},{"@id":"https://www.jstage.jst.go.jp/article/jjrt/80/9/80_2024-1473/_pdf"},{"@id":"https://search.jamas.or.jp/link/ui/2025043278"}],"availableAt":"2024","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=radiation%20protection%20clothing","dc:title":"radiation protection clothing"},{"@id":"https://cir.nii.ac.jp/all?q=K-absorption%20edge","dc:title":"K-absorption edge"},{"@id":"https://cir.nii.ac.jp/all?q=energy%20spectrum","dc:title":"energy spectrum"},{"@id":"https://cir.nii.ac.jp/all?q=transmittance","dc:title":"transmittance"},{"@id":"https://cir.nii.ac.jp/all?q=uniformity","dc:title":"uniformity"},{"@id":"https://cir.nii.ac.jp/all?q=radiation%20protection%20clothing","dc:title":"radiation protection clothing"},{"@id":"https://cir.nii.ac.jp/all?q=K-absorption%20edge","dc:title":"K-absorption edge"},{"@id":"https://cir.nii.ac.jp/all?q=energy%20spectrum","dc:title":"energy spectrum"},{"@id":"https://cir.nii.ac.jp/all?q=transmittance","dc:title":"transmittance"},{"@id":"https://cir.nii.ac.jp/all?q=uniformity","dc:title":"uniformity"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360019997857063552","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Characteristics of lead glass for radiation protection purposes: A Monte Carlo study"}]},{"@id":"https://cir.nii.ac.jp/crid/1360301472652447360","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Lead Free Multilayered Polymer Composites for Radiation Shielding"}]},{"@id":"https://cir.nii.ac.jp/crid/1360576118769586944","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Non-Lead Protective Aprons for the Protection of Interventional Radiology Physicians from Radiation Exposure in Clinical Settings: An Initial Study"}]},{"@id":"https://cir.nii.ac.jp/crid/1360582947786418688","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Comparison of the radiation protection effect of different radiation protection aprons made of different materials"}]},{"@id":"https://cir.nii.ac.jp/crid/1360855567860266240","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"NIH Image to ImageJ: 25 years of image analysis"}]},{"@id":"https://cir.nii.ac.jp/crid/1360861295472141184","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"What are useful methods to reduce occupational radiation exposure among radiological medical workers, especially for interventional radiology personnel?"}]},{"@id":"https://cir.nii.ac.jp/crid/1360864423524576768","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"High-efficiency, flexibility and lead-free X-ray shielding multilayered polymer composites: layered structure design and shielding mechanism"}]},{"@id":"https://cir.nii.ac.jp/crid/1360864424155196160","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"A validation of SpekPy: A software toolkit for modelling X-ray tube spectra"}]},{"@id":"https://cir.nii.ac.jp/crid/1360864424554176768","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Shielding properties of lead‐free protective clothing and their impact on radiation doses"}]},{"@id":"https://cir.nii.ac.jp/crid/1360864425421374720","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Construction of a Medical Radiation-Shielding Environment by Analyzing the Weaving Characteristics and Shielding Performance of Shielding Fibers Using X-ray-Impermeable Materials"}]},{"@id":"https://cir.nii.ac.jp/crid/1360864426641206528","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"A pilot single-center prospective randomized trial to assess the short-term effect of a flashing warning light on reducing fluoroscopy time and radiation exposure during ERCP"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981468488231296","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Radiation attenuation by lead and nonlead materials used in radiation shielding garments"}]},{"@id":"https://cir.nii.ac.jp/crid/1363388844611961600","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Evaluation of the transmitted exposure through lead equivalent aprons used in a radiology department, including the contribution from backscatter"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001205215595008","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Radiation Dose and Radiation Protection for Patients and Physicians During Interventional Procedure"}]}],"dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:2013364308"},{"@type":"NDL_SEARCH","@value":"oai:ndlsearch.ndl.go.jp:R000000004-I033746256"},{"@type":"CROSSREF","@value":"10.6009/jjrt.2024-1473"},{"@type":"PUBMED","@value":"39143013"},{"@type":"OPENAIRE","@value":"doi_________::55e3fb88b0f43567c899ffead8b810b6"}]}