Radiation protection dosimetry最新文献_第7页

Establishment of acquired radioresistant cells to fractionated radiation from hTERT-immortalized normal human epithelial cell. 从 hTERT-immortalized的正常人上皮细胞中建立获得性抗分化辐射细胞。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae118

Masatoshi Suzuki, Rio Isobe, Taku Sato, Ryoya Ishikawa, Keiji Suzuki, Yasushi Kino, Tomisato Miura, Yohei Inaba, Koichi Chida, Manabu Fukumoto

{"title":"Establishment of acquired radioresistant cells to fractionated radiation from hTERT-immortalized normal human epithelial cell.","authors":"Masatoshi Suzuki, Rio Isobe, Taku Sato, Ryoya Ishikawa, Keiji Suzuki, Yasushi Kino, Tomisato Miura, Yohei Inaba, Koichi Chida, Manabu Fukumoto","doi":"10.1093/rpd/ncae118","DOIUrl":"https://doi.org/10.1093/rpd/ncae118","url":null,"abstract":"Senescence-like growth arrest (SLGA), which is a radiation-induced cell death pathway, is induced in immortalized normal human epithelial cell (hTERT-RPE1) by the daily fractionated X-irradiation with 1.5 Gy within 30 times. We here demonstrate that pre-treatment induces acquired radioresistance (ARR) that can survive from the lethal fractionated radiation. The parent cells were daily fractionated with 1.5 Gy for 5 d and then incubated for 7 d without fractionated radiation. After this, the daily fractionated radiation with 1.5 Gy was restarted. A small population of surviving cells appeared after 30 times of the daily fractionated radiation was completed and they were continuously growing up to 120 times of the daily fractionated radiation (RPE1-1.5Fr). We confirmed a higher basal expression level of p53, which functions in the activation of the SLGA pathway but fails to further accumulate after 1.5 Gy of single irradiation in RPE1-1.5Fr. It is the first report to induce ARR phenotype for fractionated radiation in normal human cells.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1636-1640"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tritium determination in natural water samples in Fukushima from 2022 to 2023 using an ultra-low-level tritium counting system. 使用超低氚计数系统测定 2022 年至 2023 年福岛天然水样本中的氚含量。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae166

Miklós Hegedűs, Haruka Kuwata, Khemruthai Kheamsiri, Maté Novák, Ryohei Yamada, Naofumi Akata, Tibor Kovács

{"title":"Tritium determination in natural water samples in Fukushima from 2022 to 2023 using an ultra-low-level tritium counting system.","authors":"Miklós Hegedűs, Haruka Kuwata, Khemruthai Kheamsiri, Maté Novák, Ryohei Yamada, Naofumi Akata, Tibor Kovács","doi":"10.1093/rpd/ncae166","DOIUrl":"https://doi.org/10.1093/rpd/ncae166","url":null,"abstract":"The Fukushima Daiichi Nuclear Power Plant (FDNPP) accident created large stockpiles of tritium containing cooling water, which is to be gradually released into the Pacific Ocean, gaining attention from surrounding countries, environmental groups, and local residents concerned with the possibility of increasing tritium concentrations in the water and food cycle. Establishing baseline concentration levels and monitoring tritium immission values are important for assuring public safety, providing data for scientific research and risk communication. Tritium concentrations in the environment are very low; therefore, tritium measurements require enrichment in order to estimate the radiation exposure from drinking water intake and provide information on the water cycle. Natural water samples were collected at Tomioka Town located south of the FDNPP. Samples were distilled, enriched by electrolysis, and re-distilled using an improved SPE method to preconcentrate tritium to measureable levels. Tritium concentrations were determined by a low-background liquid scintillation counter. The observed tritium concentrations were relatively low, rainwater had a mean and SD value of 0.40 ± 0.13 Bq/L, and freshwater samples showed similar concentrations, while brackish coastal water samples were below 0.13 ± 0.02 Bq/L. The observed tritium concentrations in this study are considered safe as effective doses based on annual drinking water intake; however, continous monitoring is necessary to assure public safety.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1845-1849"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ICP-MS determination of background I-129 in seaweed samples around Fukushima Daiichi NPS. ICP-MS 测定福岛第一核电站周围海藻样本中的本底 I-129。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae163

Minseok Kim, Toshihiro Shibata, Takayuki Sasaki, Junichi Suzuki

引用次数: 0

Attempt to re-estimate organ doses of victims in non-homogeneous exposure accident by means of the state-of-the-art Mesh-type Reference Computational Phantom-a case study of an IR-192 source accident. 尝试通过最先进的网格型参考计算模型--IR-192 辐射源事故案例研究，重新估算非均质辐射事故中受害者的器官剂量。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae070

Munehiko Kowatari, Hiroshi Yoshitomi, Kotaro Tani, Yoshihiko Tanimura, Osamu Kurihara

引用次数: 0

Radiation adaptive response: the biophysical phenomenon and its theoretical description. 辐射适应反应：生物物理现象及其理论描述。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae053

Krzysztof W Fornalski, Łukasz Adamowski, Ernest Bugała, Rafał Jarmakiewicz, Julianna Krasowska, Łukasz Piotrowski

引用次数: 0

Should the current radiation protection paradigm and its recommendations be modified to make them more fit to protect the public in future nuclear emergencies? 当前的辐射防护范例及其建议是否应加以修改，使其更适合在未来的核紧急情况下保护公众？

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae088

James Mc Laughlin

{"title":"Should the current radiation protection paradigm and its recommendations be modified to make them more fit to protect the public in future nuclear emergencies?","authors":"James Mc Laughlin","doi":"10.1093/rpd/ncae088","DOIUrl":"10.1093/rpd/ncae088","url":null,"abstract":"The present radiation protection paradigm and its associated recommendations as developed by bodies such as the ICRP have performed very well over past decades both for those occupationally exposed to radiation and for the public in planned exposures. There is, however, growing evidence that the role played by this paradigm in the decision-making process to protect the public in nuclear emergencies in the past may have, unwittingly and unintentionally, caused more harm than good to some sections of the public. This seems to have been the case in the use of population evacuation as the principal protection response to the Chernobyl (1986) and Fukushima (2011) accidents. There is thus a need to develop improved guidelines or tools on how to apply radiation protection recommendations for the public compatible with the Principle of Justification in the event of any future major radiation emergencies. It can also be argued that the present radiation protection paradigm, with its emphasis primarily on the physical health detriments from radiation, should be more inclusive and needs to shift to a more holistic or total health approach than heretofore to include mental health effects associated with nuclear emergencies. For severe mental health effects, some of the consequences, such as suicide, can even be as or more severe than most physical detriments likely to be suffered by those affected.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1501-1506"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561566/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbon accumulation model for simulating 14C radioactivity in Chinese yam grown from a seed bulbil. 模拟鳞茎种子生长的中国山药中 14C 放射性的碳积累模型。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae026

Takashi Tani, Ryuji Arai

引用次数: 0

Development of evaluation method for radiocesium availability in soil by biomimetic approach. 利用仿生学方法开发土壤中铯可用性的评估方法。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae129

Akira Takeda, Yusuke Unno, Mathew J B Swallow, Yasumi Yagasaki, Tetsuo Yasutaka, Naofumi Akata

引用次数: 0

Investigation of short-term chemical changes in stable ruthenium added to soil by using X-ray absorption fine-structure analysis. 利用 X 射线吸收精细结构分析法研究添加到土壤中的稳定钌的短期化学变化。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae083

Yusuke Unno, Akira Takeda

{"title":"Investigation of short-term chemical changes in stable ruthenium added to soil by using X-ray absorption fine-structure analysis.","authors":"Yusuke Unno, Akira Takeda","doi":"10.1093/rpd/ncae083","DOIUrl":"https://doi.org/10.1093/rpd/ncae083","url":null,"abstract":"Radioactive ruthenium may be accidentally released from spent nuclear fuel reprocessing plants to the surrounding environment. However, research on the chemical behavior of radioactive Ru in the environment is limited, and the complex chemical properties of this element complicate the application of extraction methods for the analyses of its chemical forms. To obtain basic information regarding the outcome of radioactive Ru in the environment, we investigated the changes in the form of stable Ru added to soil through X-ray absorption fine-structure (XAFS) analysis. This study uses ruthenium tetroxide (RuO4), ruthenium dioxide (RuO2), ruthenium nitrosyl nitrate (Ru(NO)(NO3)3) and ruthenium chloride (RuCl3) as test sources. These are added to ultrapure water, soil solution or fresh soil samples, which are analyzed using XAFS immediately or 5 days after Ru addition. The Ru K-edge X-ray absorption near edge structure spectra acquired immediately after Ru addition differed with respect to the source. The XAFS results suggest that RuO4 immediately changes to tetravalent form after deposition from air to soil. For RuCl3, the ionic structure in the vicinity of Ru is affected by the soil even if the valence does not change immediately. By contrast, RuO2 and Ru(NO)(NO3)3 are highly stable in soil. The results show that the chemical forms of RuO2 and Ru(NO)(NO3)3 added to the soil solution and soil are retained for 5 days, whereas those of RuCl3 and RuO4 are affected by the soil solution and soil within a short period. These results emphasize the need to focus on the chemical form of Ru deposits and the form change after Ru addition when investigating the environmental fate of radioactive Ru.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1744-1747"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Atmospheric concentrations of 7Be and 210Pb in weekly aerosols at Hirosaki, a heavy snowfall area in Japan. 日本大雪地区弘前每周气溶胶中 7Be 和 210Pb 的大气浓度。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae156

Khemruthai Kheamsiri, Oumar Bobbo Modibo, Bagus Sidik Waskito Hadi, Haruka Kuwata, Ryohei Yamada, Chutima Kranrod, Naofumi Akata

引用次数: 0