发布求助
文献互助 智能选刊 最新文献

Radiation protection dosimetry最新文献

筛选
英文 中文
Evaluation and optimization of measurement conditions for heavy ions with fluorescent nuclear track detectors. 利用荧光核轨道探测器评估和优化重离子测量条件。
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/ncae071
Jun Hu, Tamon Kusumoto, Satoshi Kodaira
{"title":"Evaluation and optimization of measurement conditions for heavy ions with fluorescent nuclear track detectors.","authors":"Jun Hu, Tamon Kusumoto, Satoshi Kodaira","doi":"10.1093/rpd/ncae071","DOIUrl":"https://doi.org/10.1093/rpd/ncae071","url":null,"abstract":"<p><p>In applying fluorescent nuclear track detectors for heavy ion measurement, the fluorescence intensity directly influences linear energy transfer (LET) estimation. However, the conventional analysis highly depends on the analyzed depth and the reference frames from the optical readout. To improve the accuracy of measurements of heavy ions, the gradient of intensity and moving average fluorescence intensity were acquired and calculated to optimize the measurement conditions. The results indicate that the intensity gradient is an alternative quantity to discriminate ions with different LET, and the moving average fluorescence intensity is readily differentiated among individual ions without overlapping values in fluorescence intensity. The scanned range of 25-45 μm is suggested to be the most suitable depth for measurement. To exclude the impact of the variation in fluorescence intensity on evaluation, it is recommended to use the quantities calculated in moving averages with depth in the future.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1681-1685"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626746","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
Chemical form dependent iodine transfer from seawater into seaweed and abalone. 根据化学形式将碘从海水转移到海藻和鲍鱼中。
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/ncae167
Toshihiro Shibata, Yoshio Ishikawa
{"title":"Chemical form dependent iodine transfer from seawater into seaweed and abalone.","authors":"Toshihiro Shibata, Yoshio Ishikawa","doi":"10.1093/rpd/ncae167","DOIUrl":"https://doi.org/10.1093/rpd/ncae167","url":null,"abstract":"<p><p>Nuclear fuel reprocessing plant releases several kinds of radioactive nuclides, mainly 3H and 129I, into the oceans. Radio iodine causes thyroid dose. Iodine accumulates in several marine species such as wakame and abalone, which are food materials. Therefore, an analysis of iodine behavior in the marine environment is important to assess the impact of 129I. Iodine in seawater exists mainly in two chemical forms: iodide (I-) and iodate (IO3-). Their environmental behaviors are different. Thus, understanding these behaviors is important to assess the environmental behavior of total iodine. In this study, iodate and iodide transfer between seawater and abalone (Haliotis discus hannai) with 125I tracer was observed.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1856-1860"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626426","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
Environmental dependence of geometrical efficiency for the scintillation cell in radon and thoron measurement. 氡和钍测量中闪烁池几何效率的环境依赖性。
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/ncae143
Kazuki Iwaoka, Lorna Jean H Palad, Chitho P Feliciano, Yuki Tamakuma, Masahiro Hosoda, Shinji Tokonami, Reiko Kanda, Takashi Moritake
{"title":"Environmental dependence of geometrical efficiency for the scintillation cell in radon and thoron measurement.","authors":"Kazuki Iwaoka, Lorna Jean H Palad, Chitho P Feliciano, Yuki Tamakuma, Masahiro Hosoda, Shinji Tokonami, Reiko Kanda, Takashi Moritake","doi":"10.1093/rpd/ncae143","DOIUrl":"https://doi.org/10.1093/rpd/ncae143","url":null,"abstract":"<p><p>222Rn is recognized as a matter of international concern for human health risk. Because 220Rn as well as 222Rn coexist in the natural environment, thoron sometimes influences the experiment for radon measurement. It is important to measure radon and thoron separately to evaluate the risk of the exposure to 222Rn. As a discriminative measurement method for 222Rn and 220Rn, a simple technique with a single scintillation cell is well known. However, in recent years, the influence of atmospheric environment on the geometrical efficiency of the scintillation cell has not yet been investigated. In this study, environmental dependence of geometrical efficiency for the scintillation cell in 222Rn and 220Rn measurement was investigated using the Lucas type scintillation cell and Monte Carlo particle simulation. It was found that the influence of temperature and pressure on the geometrical efficiencies were larger than that of relative humidity.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1711-1714"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626716","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 transfer from seawater into marine organisms TFWT. 氚从海水转移到海洋生物体内 TFWT.
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/ncae168
Toshihiro Shibata, Yuki Omizu, Takeshi Furuta, Noboru Ishizawa, Takayuki Irino, Kazuo Yamanaka
{"title":"Tritium transfer from seawater into marine organisms TFWT.","authors":"Toshihiro Shibata, Yuki Omizu, Takeshi Furuta, Noboru Ishizawa, Takayuki Irino, Kazuo Yamanaka","doi":"10.1093/rpd/ncae168","DOIUrl":"https://doi.org/10.1093/rpd/ncae168","url":null,"abstract":"<p><p>Tokyo Electric Power Company, TEPCO, has started tritiated water release into the Pacific Ocean. In order to reduce unreasonable rumor caused by tritium release, flounder, abalone, and sarggasum were exposed to tritium enriched seawater, and time dependent Tissues Free Water Tritium (TFWT) concentration was measured. Estimating the concentration of Organically Bound Tritium (OBT) is important to assess tritium impact because it has a longer biological half-life than TFWT. Current models estimate OBT concentrations using TFWT concentration. Understanding equilibration time is critical for making accurate TFWT concentration predictions. TFWT intake rate was analysed by the compartment model.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1824-1828"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626892","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
Changes in 129I concentration of soil samples after thermal drying. 热干燥后土壤样本中 129I 浓度的变化。
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/ncae092
Yuhi Satoh, Yoshihito Ohtsuka
{"title":"Changes in 129I concentration of soil samples after thermal drying.","authors":"Yuhi Satoh, Yoshihito Ohtsuka","doi":"10.1093/rpd/ncae092","DOIUrl":"https://doi.org/10.1093/rpd/ncae092","url":null,"abstract":"<p><p>To precisely evaluate the concentration of iodine-129 (129I) in soil samples, changes in this concentration after thermal drying under several temperature conditions were investigated. The soil sample used in this study was collected from a site located near a nuclear fuel reprocessing plant, which atmospherically released 129I in a test operation in 2006-2008, resulting in the soil sample containing higher 129I concentrations than their natural levels. Thermal drying was conducted from 60°C to 110°C and compared with lyophilization result, showing that the 129I concentration in the soil sample was statistically comparable among all the drying treatments.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1748-1751"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626260","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
Unexpected uncertainty in the use of simple sample machining technique for gamma-spectrometry. 伽马能谱仪使用简单样品加工技术时的意外不确定性。
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/ncae076
Takahiro Yamada, Mayumi Hachinohe, Akiko Hachisuka, Yumiko Asakura, Takuya Kanno, Mihoko Kikuchi
{"title":"Unexpected uncertainty in the use of simple sample machining technique for gamma-spectrometry.","authors":"Takahiro Yamada, Mayumi Hachinohe, Akiko Hachisuka, Yumiko Asakura, Takuya Kanno, Mihoko Kikuchi","doi":"10.1093/rpd/ncae076","DOIUrl":"https://doi.org/10.1093/rpd/ncae076","url":null,"abstract":"<p><p>Elementary processing techniques such as cutting or grinding of foodstuffs are deemed adequate, particularly in the context of post-nuclear accidental situations, ensuring expeditious and effective testing for the gamma-ray spectrometry. Nevertheless, it is worth acknowledging that this straightforward procedure may predispose itself to appreciable variances in the detection efficiency of gamma-ray spectrometry, primarily attributable to the heterogeneity of the radioactivity distribution within the sample container, thereby incurring unexpected discrepancies or uncertainties. To investigate this impact, the precision of the actual sample measurements was scrutinised through statistical analysis.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1666-1670"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626960","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
Effect of sampling face velocity on the ultrafine particle surface collection efficiency of a cellulose membrane filter and a cellulose-glass fiber filter for environmental airborne radioactivity monitoring. 采样面速度对用于环境空气放射性监测的纤维素膜过滤器和纤维素-玻璃纤维过滤器的超细粒子表面收集效率的影响。
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/ncae191
Mizuki Kiso, Manaya Taoka, Aoi Sampei, Hiroki Hashimoto, Yuki Abe, Yuki Oda, Yasutaka Omori, Ryohei Yamada, Masahiro Hosoda, Chutima Kranrod, Tetsuo Ishikawa, Shinji Tokonami
{"title":"Effect of sampling face velocity on the ultrafine particle surface collection efficiency of a cellulose membrane filter and a cellulose-glass fiber filter for environmental airborne radioactivity monitoring.","authors":"Mizuki Kiso, Manaya Taoka, Aoi Sampei, Hiroki Hashimoto, Yuki Abe, Yuki Oda, Yasutaka Omori, Ryohei Yamada, Masahiro Hosoda, Chutima Kranrod, Tetsuo Ishikawa, Shinji Tokonami","doi":"10.1093/rpd/ncae191","DOIUrl":"10.1093/rpd/ncae191","url":null,"abstract":"<p><p>Surface collection efficiency (SCE) of a cellulose membrane filter (CMF) and a cellulose-glass fiber filter used in environmental monitoring for alpha-emitting radionuclides from nuclear facilities and natural radioactivity sources was evaluated for particles in the size range of 0.03-0.1 μm at different levels of face velocity. The SCE of the CMF was higher than that of the cellulose-glass fiber filter, and only the membrane filter showed the dependence of SCE on the particle size at higher face velocity. The use of the CMF at higher face velocity in environmental radioactivity monitoring leads to measurements of the background alpha spectrum with more degradation under the changing particle size condition in the atmosphere. Consequently, that fact needs to be taken into account, along with the expected particle size distribution and concentration of the airborne radioactivity being sampled, when selecting a face velocity to achieve the best possible detection limit.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1671-1675"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561569/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626684","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
Enhancing time-resolution for radon measurements using airflow-through scintillation cells based on a compartmental model approach. 基于分区模型方法，利用气流通过闪烁池提高氡测量的时间分辨率。
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/ncae062
Chao Zhao, Gang Han, Chongqing Hu, Yanliang Chen, Jiayu Liu, Fangdong Tang, Linfeng He
{"title":"Enhancing time-resolution for radon measurements using airflow-through scintillation cells based on a compartmental model approach.","authors":"Chao Zhao, Gang Han, Chongqing Hu, Yanliang Chen, Jiayu Liu, Fangdong Tang, Linfeng He","doi":"10.1093/rpd/ncae062","DOIUrl":"https://doi.org/10.1093/rpd/ncae062","url":null,"abstract":"<p><p>To overcome the time-resolution limitation inherent in the airflow-through scintillation cell method for radon measurement, this study introduces a compartmental model elucidating the behaviors of radon and its progeny within such cells. The computed results of the normalized equilibrium functions derived from the compartmental model, provide quantitative insights into the equilibrium progression of 222Rn and its progeny over time, substantiating the identified time-resolution limitation of 2-3 hours. Laboratory experiments confirm the efficacy of the proposed correction algorithm, showcasing its ability to surmount the time-resolution limitation and achieve a rapid response in radon measurement using airflow-through scintillation cells.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1706-1710"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626708","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
Impacts of the large fusion test facility on tritium in environmental water and natural radiation levels. 大型核聚变试验设施对环境水中的氚和天然辐射水平的影响。
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/ncae123
Masahiro Tanaka, Saori Kurita, Naofumi Akata
{"title":"Impacts of the large fusion test facility on tritium in environmental water and natural radiation levels.","authors":"Masahiro Tanaka, Saori Kurita, Naofumi Akata","doi":"10.1093/rpd/ncae123","DOIUrl":"https://doi.org/10.1093/rpd/ncae123","url":null,"abstract":"<p><p>In the progress of nuclear fusion development, environmental radiation monitoring in the vicinity of the facility would be an important issue. At the National Institute of Fusion Science (NIFS), the deuterium plasma experiment, which produces tritium and neutrons using d-d fusion reactions, was conducted from 2017 to 2022. Environmental radiation and tritium in environmental water were monitored before and during the deuterium plasma experiment for public acceptance. As a result, there was no significant change in the observed dose rate and tritium concentration in the rainwater, and no statistically significant difference was identified in the statistical analysis of the data observed before and during the deuterium plasma experiment. Therefore, the environmental impact of the deuterium plasma experiments at NIFS is considered to be negligible.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1802-1806"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626762","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
Sharing of data archive of radiation exposure animal experiments in QST/NIRS and IES. 共享 QST/NIRS 和 IES 的辐照动物实验数据档案。
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/ncae122
Atsuko Ishikawa, Yoshika Kin, Yutaka Yamada, Takamitsu Morioka, Mayumi Nishimura, Tatsuhiko Imaoka, Shizuko Kakinuma, Satoshi Tanaka, Rei Nakahira, Etsuko Kobayashi, Katsuyoshi Fujikawa, Jun-Ichiro Komura, Toshiyuki Kobayashi, Yoshiya Shimada
{"title":"Sharing of data archive of radiation exposure animal experiments in QST/NIRS and IES.","authors":"Atsuko Ishikawa, Yoshika Kin, Yutaka Yamada, Takamitsu Morioka, Mayumi Nishimura, Tatsuhiko Imaoka, Shizuko Kakinuma, Satoshi Tanaka, Rei Nakahira, Etsuko Kobayashi, Katsuyoshi Fujikawa, Jun-Ichiro Komura, Toshiyuki Kobayashi, Yoshiya Shimada","doi":"10.1093/rpd/ncae122","DOIUrl":"https://doi.org/10.1093/rpd/ncae122","url":null,"abstract":"<p><p>Institute for Radiological Science (NIRS), National Institutes for Quantum Science and Technology (QST), and Institute for Environmental Sciences (IES) have conducted large-scale animal experiments for radiation risk analyses in terms of life shortening and cancer prevalence. It is important to store data and biological samples from these large-scale experiments for sharing and future use since the economic and practical limitations, as well as the ethical considerations, make it difficult. QST/NIRS established an archive called the Japan Storehouse of Animal Radiobiology Experiments (J-SHARE) for the purpose of storing and sharing these historic collections. We plan to integrate the data and tissue specimen images obtained at the IES into J-SHARE by standardizing the archive format, with the aim of maximizing the results of radiation biology research. This integration is expected to contribute to the generation of new knowledge for radiation risk assessment and the provision of scientifically based information on radiation protection.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":"200 16-18","pages":"1651-1655"},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626915","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信