Radiation protection dosimetry最新文献_第3页

Modelling the peripheral blood count dynamics in workers externally exposed to ionizing radiation during prolonged periods. 模拟长时间暴露于外部电离辐射的工人外周血计数动态。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-04-07 DOI: 10.1093/rpd/ncag025

Sergey V Osovets, Evgenia S Grigoryeva, Tamara V Azizova

引用次数: 0

Paediatric cardiac catheterization radiation doses: a 6-year retrospective survey and typical values in a Mexican tertiary care center. 儿科心导管放射剂量：6年回顾性调查和典型值在墨西哥三级保健中心。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-04-06 DOI: 10.1093/rpd/ncag032

Carlos Ubeda de la Cerda, Maria Franco-Cabrera, Guillermo Andrés Negrete-Gómez, Byron Anthony Bodden Mendoza, Silvia C Britton-Robles, Sigrid A Donoso Aguirre, Hector M Vazquez

{"title":"Paediatric cardiac catheterization radiation doses: a 6-year retrospective survey and typical values in a Mexican tertiary care center.","authors":"Carlos Ubeda de la Cerda, Maria Franco-Cabrera, Guillermo Andrés Negrete-Gómez, Byron Anthony Bodden Mendoza, Silvia C Britton-Robles, Sigrid A Donoso Aguirre, Hector M Vazquez","doi":"10.1093/rpd/ncag032","DOIUrl":"https://doi.org/10.1093/rpd/ncag032","url":null,"abstract":"Background: Establishing typical values is vital for radiation safety in paediatric fluoroscopically guided cardiac procedures (FGCP).Aim: To publish the first typical values for FGCP in a Mexican tertiary hospital.Methods: We retrospectively analyzed 136 procedures (2018-2024), stratified by procedure type, weight, and age. Kerma-area product (Pka) and cumulative air kerma (Ka,r) were collected.Results: Typical values (median Pka) ranged from: <5 kg (2.84 Gy·cm2) up to 50-<80 kg (30.54 Gy·cm2). By age group <1 year (3.28 Gy·cm2) up to 10-15 years (20.63 Gy·cm2). No statistical difference was found between diagnostic and therapeutic procedures.Conclusions: Weight-stratified institutional typical values revealed critical disparities, notably a five-fold higher dose for therapeutic procedures in infants <5 kg (4.07 vs 0.80 Gy·cm2). While weight predicts diagnostic dose, complexity drives therapeutic exposure. These benchmarks enable local optimization and support future National DRL development.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147633545","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

Developing new high-temperature shielding materials for neutron radiation protection. 研制新型高温中子辐射防护屏蔽材料。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-04-06 DOI: 10.1093/rpd/ncaf148

Bünyamin Aygün, Turgay Korkut, Eren Urtekin, Mansur Albayrak, M I Sayyed, Abdulhalik Karabulut

{"title":"Developing new high-temperature shielding materials for neutron radiation protection.","authors":"Bünyamin Aygün, Turgay Korkut, Eren Urtekin, Mansur Albayrak, M I Sayyed, Abdulhalik Karabulut","doi":"10.1093/rpd/ncaf148","DOIUrl":"10.1093/rpd/ncaf148","url":null,"abstract":"In this paper, neutron shields based on hydraulic lime-based brick samples were fabricated by adding various mass additive materials in proportions such as lime (CaCO3), titanium oxide (TiO2), hematite (Fe2O3), aluminum oxide (Al2O3), calcium sulfate (CaSO4), silicon dioxide (SiO2), and boron carbide (B4C). Neutron attenuation factors such as neutron transmission factor, half-value layer, effective removal cross-section ΣR (cm-1), mean free path, and neutron flux were determined theoretically using Monte Carlo simulation GEANT4 and Fluka codes. Fast neutron absorption dose rate experiments were performed using a 241Am-Be source and a BF3 gaseous proportional detector. In addition, the absorbed dose values were theoretically determined using the Fluka code. All the obtained data were compared with the results of the examined reference samples (conventional concrete, some heavy concretes, and paraffin). All new brick materials were detected to have superior shielding capacities compared to the reference material. The proposed brick samples can be used as an alternative radiation protection material for regular shielding materials.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"468-478"},"PeriodicalIF":0.7,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145800592","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

Evaluation of radiological dose rate to non-human biota available AT KAKRAPAR GUJARAT site, INDIA using ERICA tool. 使用ERICA工具评估印度古吉拉特邦KAKRAPAR站点非人类生物群的放射性剂量率。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-04-06 DOI: 10.1093/rpd/ncaf157

A K Patra, M K Jha, S S Wagh, Amol Chandrakar, I V Saradhi, A Vinod Kumar

引用次数: 0

Evaluation of occupational equivalent doses to selected organs and tissues in veterinarians from scattered radiation during X-ray and CT examinations. x光和CT检查中散射辐射对兽医选定器官和组织的职业等效剂量的评价。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-04-06 DOI: 10.1093/rpd/ncaf153

Joaquín Jiménez, Jose A Corbacho, Pedro Escudero, Marta Púa, Coral Melchor

{"title":"Evaluation of occupational equivalent doses to selected organs and tissues in veterinarians from scattered radiation during X-ray and CT examinations.","authors":"Joaquín Jiménez, Jose A Corbacho, Pedro Escudero, Marta Púa, Coral Melchor","doi":"10.1093/rpd/ncaf153","DOIUrl":"10.1093/rpd/ncaf153","url":null,"abstract":"This study evaluates the occupational equivalent doses to selected organs and tissues received by veterinary staff at the Veterinary Clinical Hospital of the University of Extremadura, where $sim $7000 diagnostic imaging procedures (X-ray and computed tomography scans) are performed annually on patients of various sizes. Experiments were conducted with dosemeters positioned to simulate typical locations of veterinary operators during radiographic procedures under clinical conditions. Canine cadavers and equine anatomical specimens were used as animal patients, and scattered radiation exposure was measured at operator-relevant sites-including the hands, thorax, gonads, and eyes-both with and without protective equipment. The findings confirm that, with proper radioprotection measures, doses remain well below the legal limit (500, 50 and 20 mSv y$^{-1}$ for hands, eye lens and other tissues, respectively), even in worst-case scenarios-particularly during portable equine radiography exposure. However, it highlights the need for strict adherence to radiation safety protocols.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"429-440"},"PeriodicalIF":0.7,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145743786","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

Seasonal and interannual changes of HT deposition velocities in pasture soils. 草地土壤高温沉积速度的季节和年际变化。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-04-06 DOI: 10.1093/rpd/ncag033

Masaru Nagai, Hideki Kakiuchi, Tsuyoshi Masuda

引用次数: 0

The effectiveness of an educational program for reducing radiation exposure to the lens of the eye in radiological technologists: focusing on patient assistance during chest X-ray examinations. 减少放射技术人员眼睛晶状体辐射暴露的教育计划的有效性：重点是在胸部x光检查期间帮助患者。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-04-06 DOI: 10.1093/rpd/ncaf158

Mitsuyoshi Yasuda, Tomoki Fuji, Tetsuichi Hondera, Hiroyuki Watanabe, Kanako Yamabe, Mitsunori Goto, Hisaya Sato, Kenji Ishizaki, Megumi Enokida

{"title":"The effectiveness of an educational program for reducing radiation exposure to the lens of the eye in radiological technologists: focusing on patient assistance during chest X-ray examinations.","authors":"Mitsuyoshi Yasuda, Tomoki Fuji, Tetsuichi Hondera, Hiroyuki Watanabe, Kanako Yamabe, Mitsunori Goto, Hisaya Sato, Kenji Ishizaki, Megumi Enokida","doi":"10.1093/rpd/ncaf158","DOIUrl":"10.1093/rpd/ncaf158","url":null,"abstract":"Radiation exposure risk to the lens of the eye varies based on where technologists assist during chest X-rays. In this study five radiologic technologists participated in the training for lens exposure reduction methods proposed in previous studies, and the personal dose equivalent at a depth of 3 mm [Hp(3)] near the eyes were evaluated. Data were collected before and after the training. After the training, three radiologic technologists had 3%-27% decreases in Hp(3) at the measurement points, and the proportion of selecting the assistance position with the lowest Hp(3) increased. However, one technologist with extensive experience in chest X-ray examinations showed no significant differences in Hp(3) before and after the training. This suggests that the training is specifically effective for technologists with less experience in radiation-related work because the radiation protection education brought about behavioral changes in the radiologic technologists, leading to a reduction in their Hp(3).","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"458-467"},"PeriodicalIF":0.7,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145782613","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

Simulation of radioactive contamination and the health risks from consuming contaminated sweet potatoes. 模拟放射性污染及食用受污染红薯的健康风险。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-04-06 DOI: 10.1093/rpd/ncaf154

Hugo F Menossi, Rafael M Hespanhol, Maíra R Uliana, Andre C Tavares, Edson R Andrade

{"title":"Simulation of radioactive contamination and the health risks from consuming contaminated sweet potatoes.","authors":"Hugo F Menossi, Rafael M Hespanhol, Maíra R Uliana, Andre C Tavares, Edson R Andrade","doi":"10.1093/rpd/ncaf154","DOIUrl":"10.1093/rpd/ncaf154","url":null,"abstract":"This study investigates the contamination of sweet potatoes by 137Cs following a hypothetical radiological dispersion event, assessing its implications for food safety and public health. Given the increasing concerns about nuclear energy expansion, this research is particularly relevant to agricultural systems, which are crucial to food security. Using HotSpot Health Physics Codes (v3.1.2), we simulated the radionuclide dispersion in a sweet potato farming area, considering environmental factors like atmospheric stability and soil properties. The model assesses the transfer of radioactive material to crops and the potential health risks to consumers. The evaluation links 137Cs exposure to an increased risk of leukemia, represented by the excess risk of its fatal occurrence over a lifetime, emphasizing the need for post-radiological incident monitoring. The results of the simulations suggest, for example, that the concentration of activity of 137Cs in the root of the sweet potato can vary by up to 3 orders of magnitude for the same location, depending on variations in the local atmospheric stability classes. Such sensitivity was also observed for the risk of developing radiation-induced leukemia, whose average values for the adopted radionuclide-to-plant Transfer Factors models may differ by up to 2 orders of magnitude depending on the same variables. Through computational modeling, this study offers insights into the threat posed by radiological contaminants in food chains and underscores the importance of surveillance measures in protecting public health.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"479-489"},"PeriodicalIF":0.7,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145743873","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

Benzene synthesis method coupled with passive sampling technique for 14C measurements in the atmospheric CO2. 苯合成法结合被动采样技术测定大气CO2中的14C。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-04-06 DOI: 10.1093/rpd/ncaf156

Bommadeni Arun, Neha Ashok Fulzele, Menaka M, Kothai Parthasarathy

引用次数: 0

Correction to two articles. 更正两篇文章。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2026-04-05 DOI: 10.1093/rpd/ncag037

引用次数: 0