Radiation protection dosimetry最新文献_第3页

External radiation exposure of turtles and soil biota in Ramsar high natural background radiation area: experimental dosimetry supported by Monte Carlo modeling. 拉姆萨尔自然高本底辐射区海龟和土壤生物的外部辐射暴露：蒙特卡罗模型支持的实验剂量学。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-10-06 DOI: 10.1093/rpd/ncag071

Sedigheh Sina, Mehrnoosh Karimipourfard, Shima Alizadeh, Mohadeseh Heidarinia, Minoo Shakerian, Kazem Sadeghi, Amirali Falakian

{"title":"External radiation exposure of turtles and soil biota in Ramsar high natural background radiation area: experimental dosimetry supported by Monte Carlo modeling.","authors":"Sedigheh Sina, Mehrnoosh Karimipourfard, Shima Alizadeh, Mohadeseh Heidarinia, Minoo Shakerian, Kazem Sadeghi, Amirali Falakian","doi":"10.1093/rpd/ncag071","DOIUrl":"10.1093/rpd/ncag071","url":null,"abstract":"High natural background radiation areas (HNBRAs) can impose elevated external exposure on non-human biota, yet organism-relevant dose characterization remains limited for many extreme environments. Here, we quantify external radiation exposure in Ramsar's Talesh Mahalleh (Iran) using controlled laboratory measurements supported by Monte Carlo (MC) modeling to interpret finite-geometry effects and soil-to-organism dose transfer. Depth-resolved dosimetry was performed in homogenized Ramsar soil (2-10 cm, 2 cm spacing) over 2 months using three thermoluminescent dosemeters (TLD-100, GR-200, and TLD-400). Cumulative doses in this biologically relevant layer ranged from 4.18 to 5.47 mGy, with no pronounced depth-dependent gradient. TLD-100 showed the most stable response across layers (mean 5.37 ± 0.08 mGy), while GR-200 and TLD-400 exhibited higher variability. In parallel, external turtle dosimetry using TLD-100 and GR-200 revealed a consistent ventral-dorsal asymmetry: plastron doses (6.75-6.83 mGy for TLD-100; 6.16-6.22 mGy for GR-200) exceeded carapace doses (2.15-2.79 mGy for TLD-100; 2.01-2.79 mGy for GR-200), yielding a measured plastron-to-carapace ratio of 3.18 (TLD-100). MC simulations reproduced this asymmetry (ratio 3.44) and indicated that boundary effects reduce wall-adjacent doses, whereas central positions remain within ~8%-12% of extended-soil conditions, supporting the robustness of relative dose ratios. Overall, the combined experimental and modeling results demonstrate that external exposure at the soil-air interface is governed primarily by geometric proximity to contaminated soil, and that soil-to-organism dose ratios provide a transferable basis for ecological dosimetry in HNBRAs.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"1340-1353"},"PeriodicalIF":0.8,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148423636","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

A proposal for a differentiated radiation protection program for the decommissioning of nuclear power plants compared to the operation of nuclear power plants. 核电站退役与运行的区别辐射防护方案提案。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-10-06 DOI: 10.1093/rpd/ncag066

Hoyeon Lee, Tae Young Kong, Seongjun Kim, Jaeok Park, Jiyeon Jun, Hee Geun Kim, Changwoo Kang

{"title":"A proposal for a differentiated radiation protection program for the decommissioning of nuclear power plants compared to the operation of nuclear power plants.","authors":"Hoyeon Lee, Tae Young Kong, Seongjun Kim, Jaeok Park, Jiyeon Jun, Hee Geun Kim, Changwoo Kang","doi":"10.1093/rpd/ncag066","DOIUrl":"10.1093/rpd/ncag066","url":null,"abstract":"While fundamental radiological protection standards remain consistent for operating and decommissioning nuclear power plants (NPPs), the unique challenges of decommissioning require a specialized program. This study analyzes the radiological characteristics of decommissioned NPPs and proposes a tailored protection program. Key findings indicate that although total radioactive inventory decreases, radiation dose rates in work areas can fluctuate significantly during the removal and movement of structures and components. The risk of internal exposure and alpha contamination increases due to fine aerosols generated during cutting. The proposed program includes five key elements: ALARA (As Low As Reasonably Achievable), effective access control and monitoring, high-frequency radiological surveys, contamination control, and prevention of internal exposure. This approach aims to optimize radiation exposure, prioritize the removal of high-radiation sources, expand real-time monitoring, and enhance worker training. The study's results aim to bolster safety and establish a robust radiological protection system for future Korean NPP decommissioning efforts.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"1279-1290"},"PeriodicalIF":0.8,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148353321","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

Novel passive-adaptive exoskeleton-supported radiation protection equipment with enhanced shielding and reduced perceived weight. 新型被动自适应外骨骼支持的辐射防护设备，具有增强的屏蔽和减轻的感知重量。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-10-06 DOI: 10.1093/rpd/ncag062

Yansong Sun, Yi Han, Yuchen Liu, Liye Liu, Chao Wang, Guodong Li, Hua Li, Qinjian Cao, Xiaomiao Chi, Junjie Ji

{"title":"Novel passive-adaptive exoskeleton-supported radiation protection equipment with enhanced shielding and reduced perceived weight.","authors":"Yansong Sun, Yi Han, Yuchen Liu, Liye Liu, Chao Wang, Guodong Li, Hua Li, Qinjian Cao, Xiaomiao Chi, Junjie Ji","doi":"10.1093/rpd/ncag062","DOIUrl":"10.1093/rpd/ncag062","url":null,"abstract":"The study introduces novel passive-adaptive exoskeleton-supported radiation protection equipment (PAESRPE) designed to overcome the limitations of conventional radiation protection equipment (RPE). The PAESRPE employs an exoskeleton to transfer the weight of the RPE to the ground, and is supported by a modular configuration that allows for the selective integration of γ-ray or neutron shielding components, or combined protection against both radiation types. The test results demonstrated that PAESRPE achieved a γ-ray shielding ratio of 35.4 ± 1.6% (60Co), representing ~27% improvement compared with conventional RPE (60Co, with a shielding ratio of 8.3 ± 0.4%). For neutron radiation, PAESRPE achieved a neutron shielding attenuation of 50.3 ± 3.8% (252Cf), effectively addressing the challenge of high-energy neutron shielding protection for the RPE. PAESRPE achieved a maximum perceived weight reduction of over 80%. Practical trials conducted during nuclear power plant overhaul operations showed that PAESRPE reduced personnel radiation exposure by 32%, effectively enhancing on-site dose-control capabilities.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"1255-1267"},"PeriodicalIF":0.8,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148318709","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

A three-dimensional neutron localization method based on double-scattering imaging and reconstruction algorithm. 基于双散射成像和重建算法的三维中子定位方法。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-10-06 DOI: 10.1093/rpd/ncag067

Xiaoyang Wang, Tingyu Jiao, Jiewei Cao, Zixiang Yang, Kexin Ma, Zhenyuan Gu, Yuchang Mei, Jiarui Cui, Wei Li

{"title":"A three-dimensional neutron localization method based on double-scattering imaging and reconstruction algorithm.","authors":"Xiaoyang Wang, Tingyu Jiao, Jiewei Cao, Zixiang Yang, Kexin Ma, Zhenyuan Gu, Yuchang Mei, Jiarui Cui, Wei Li","doi":"10.1093/rpd/ncag067","DOIUrl":"10.1093/rpd/ncag067","url":null,"abstract":"Three-dimensional localization of neutron-emitting materials is crucial for minimizing personnel radiation exposure during nuclear decommissioning and nuclear safety activities. To address this challenge, this study proposes a localization method based on double-scattering principle and a dedicated reconstruction algorithm. This study is comprised of two main parts. First, a double-layer scintillator array detector was designed. Its key parameters were optimized to achieve a balance between coincidence detection efficiency and spatial resolution. Second, a three-dimensional localization algorithm was developed. This algorithm determines the optimal imaging plane and reconstructs a heatmap, leading to three-dimensional localization. The performance of the double-scattering imaging system was evaluated via simulations. The results demonstrated that the neutron source can be localized within a defined spatial area with centimeter-level accuracy. This study provides a practical solution for the three-dimensional localization of neutron-emitting materials and demonstrates its significant application potential in the field of nuclear decommissioning.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"1268-1278"},"PeriodicalIF":0.8,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148353350","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 131I biodistribution on measurements using a scanning whole-body counter. 131I生物分布对扫描式全身计数器测量的影响。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-10-06 DOI: 10.1093/rpd/ncag069

Yuki Tamakuma, Naoko Fukuda, Osamu Kurihara, Naoki Matsuda, Yu Abe, Sumi Yokoyama

{"title":"Effect of 131I biodistribution on measurements using a scanning whole-body counter.","authors":"Yuki Tamakuma, Naoko Fukuda, Osamu Kurihara, Naoki Matsuda, Yu Abe, Sumi Yokoyama","doi":"10.1093/rpd/ncag069","DOIUrl":"10.1093/rpd/ncag069","url":null,"abstract":"To validate the thyroid dose assessment performed at Nagasaki University after the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident, the influence of 131I biodistribution on the direct in-vivo counting measurements by a scanning whole-body counter with two NaI(Tl) detectors was evaluated by a Monte Carlo simulation. The peak efficiency for gamma rays from 131I was calculated for the Bottle-Manikin Absorption (BOMAB) phantom and International Commission on Radiological Protection voxel phantom with a uniform radionuclide distribution in the body and a localized distribution in the thyroid. The ratio of scan peak efficiencies for the BOMAB phantom with the uniform and localized distribution was 1.17 (localized/uniform), while that for the voxel phantom was 1.00. For the voxel phantom, a shielding by the head and tissues covering thyroid reduced the scan peak efficiency for the localized source, resulting in a negligible difference in peak efficiency between the source distributions. The assumption of a completely localized thyroid source is suggested to result in an underestimation within approximately 4% in residual activity assessment, considering 131I biodistribution calculated using ratios of physicochemical forms reported after the FDNPP accident, which represents a scenario with the maximum uncertainty. Consequently, the influence of 131I biodistribution on the scanning whole-body counting was negligibly small under the present conditions, partly due to the detector arrangement with two NaI(Tl) detectors positioned above and below the subject.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"1306-1314"},"PeriodicalIF":0.8,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148353373","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

Development of CaSO4: Dy-based ring badge for extremity dose monitoring of radiation workers in India. 印度辐射工作人员肢体剂量监测用CaSO4：染料环标的研制。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-10-06 DOI: 10.1093/rpd/ncag064

Kshama Srivastava, Rohit Yadav, Shatabdi Chakrabarty, P Minal, Sunil K Singh, A K Bakshi, B K Sapra

引用次数: 0

Long-term persistence of 137Cs in forest humus of the Czech Republic: a 25-year monitoring perspective. 捷克共和国森林腐殖质中137Cs的长期持久性：25年监测视角

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-10-05 DOI: 10.1093/rpd/ncag117

Jan Škrkal, Petr Rulík, Ivan Suchara, Helena Pilátová, Julie Sucharová, Marie Holá

引用次数: 0

The impact of breast shielding on radiation dose during computed tomography procedures. 乳腺屏蔽对计算机断层扫描过程中辐射剂量的影响。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-09-30 DOI: 10.1093/rpd/ncag115

Salman Albeshan, Haila Nasser A Aloud

引用次数: 0

Occupational chronic myeloid leukaemia in a radiology technician: a quantitative Probability of Causation assessment. 放射科技术人员职业性慢性髓性白血病：定量的因果概率评估。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-09-30 DOI: 10.1093/rpd/ncag116

Elif Reyhan Sahin, Aysu Timuroglu, Elif Sedanur Utlu

{"title":"Occupational chronic myeloid leukaemia in a radiology technician: a quantitative Probability of Causation assessment.","authors":"Elif Reyhan Sahin, Aysu Timuroglu, Elif Sedanur Utlu","doi":"10.1093/rpd/ncag116","DOIUrl":"https://doi.org/10.1093/rpd/ncag116","url":null,"abstract":"Chronic myeloid leukaemia (CML) is a clonal myeloproliferative neoplasm associated with the Philadelphia chromosome, and ionizing radiation is a well-established leukemogenic factor. Despite regulated dose limits, occupationally related CML remains rare and under-recognized. We present the case of a 53-year-old male radiology technician diagnosed with CML following the detection of leukocytosis during routine periodic fitness-for-work surveillance. The patient had 29 years of documented occupational exposure with a cumulative effective dose of 150 mSv, without acute incidents. While International Commission on Radiological Protection recommendations primarily focus on fitness-for-work rather than malignancy screening, this case-the first officially recognized and institutionally attributed occupational CML in our country-demonstrates how systematic surveillance can facilitate the identification of serious haematological conditions in high-exposure (Class A) workers. It provides a structured Probability of Causation assessment to support occupational attribution and statutory recognition within a regulated low-dose environment on a probabilistic basis.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149081874","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

Estimation of global population-weighted annual eye lens dose from cosmic ray exposure. 估计全球人口加权的每年由宇宙射线照射的晶状体剂量。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-09-25 DOI: 10.1093/rpd/ncag114

Munehiko Kowatari, Eric Petermann, Philipp Steinmann, Tatsuhiko Sato

引用次数: 0