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
Correction to: Occupational and ambient radiation dose monitoring in a nuclear medicine department. 修正为：核医学科职业与环境辐射剂量监测。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2026-08-04 DOI: 10.1093/rpd/ncag096
{"title":"Correction to: Occupational and ambient radiation dose monitoring in a nuclear medicine department.","authors":"","doi":"10.1093/rpd/ncag096","DOIUrl":"https://doi.org/10.1093/rpd/ncag096","url":null,"abstract":"","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148670106","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
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 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2026-07-20 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":"10.1093/rpd/ncag032","url":null,"abstract":"<p><strong>Background: </strong>Establishing typical values is vital for radiation safety in paediatric fluoroscopically guided cardiac procedures (FGCP).</p><p><strong>Aim: </strong>To publish the first typical values for FGCP in a Mexican tertiary hospital.</p><p><strong>Methods: </strong>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.</p><p><strong>Results: </strong>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.</p><p><strong>Conclusions: </strong>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.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"940-950"},"PeriodicalIF":0.8,"publicationDate":"2026-07-20","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
Photon-counting CT vs. energy-integrating detector CT: image quality and radiation dose in multi-phase abdominopelvic imaging. 光子计数CT与能量积分检测器CT：腹部骨盆多相成像的图像质量和辐射剂量。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2026-07-20 DOI: 10.1093/rpd/ncag036
Yu-Fen Huang, Jian-Feng Yang, Li Zhao, Wei-Li Ma, Yu Wang, Xue-Li Liu, Zhen-Hua Zhao
{"title":"Photon-counting CT vs. energy-integrating detector CT: image quality and radiation dose in multi-phase abdominopelvic imaging.","authors":"Yu-Fen Huang, Jian-Feng Yang, Li Zhao, Wei-Li Ma, Yu Wang, Xue-Li Liu, Zhen-Hua Zhao","doi":"10.1093/rpd/ncag036","DOIUrl":"10.1093/rpd/ncag036","url":null,"abstract":"<p><strong>Objective: </strong>To compare photon-counting detector CT (PCCT) and energy-integrating detector CT (EID-CT) for abdominopelvic imaging regarding radiation dose and image quality.</p><p><strong>Methods: </strong>This prospective study enrolled 94 adults undergoing abdominopelvic CT. Objective image quality was assessed by measuring hepatic noise, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR). Two blinded radiologists independently scored subjective image quality using a 5-point Likert scale. Radiation exposure was evaluated via CTDIvol, dose-length product (DLP), and scan length-normalized DLP (nDLP).</p><p><strong>Results: </strong>PCCT significantly reduced radiation dose: CTDIvol by 57%, DLP by 62%, and nDLP by 57% (all P < .001). Concurrently, image quality improved:hepatic noise decreasing by 31% (P < .001), and SNR increased by 40-70% (P < .001); CNR increased 22-45% (P < .05).</p><p><strong>Conclusion: </strong>PCCT achieves substantial radiation dose reduction while improving objective image quality compared with EID-CT in abdominopelvic imaging. These findings support PCCT as a valuable tool for dose-optimised abdominal protocols.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"986-997"},"PeriodicalIF":0.8,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147691921","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
Thorium lung burdens of NORM workers revisited. 常模工人钍肺负荷的再研究。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2026-07-20 DOI: 10.1093/rpd/ncag035
Gregory Stanley Hewson, Martin I Ralph, Marcus Cattani
{"title":"Thorium lung burdens of NORM workers revisited.","authors":"Gregory Stanley Hewson, Martin I Ralph, Marcus Cattani","doi":"10.1093/rpd/ncag035","DOIUrl":"10.1093/rpd/ncag035","url":null,"abstract":"<p><p>Historical thorium bioassay data collected from Australian mine workers in the 1990s, including in vivo lung counting and thoron-in-breath (TIB) measurements, were re-evaluated using current dosimetric and biokinetic models. Revised daily thorium intakes from bioassay were compared with previous estimates to assess changes in the dose profile and potential implications for contemporary operations. Reanalysis revealed lower estimates of annual dose, including the number of workers assessed as exceeding 20 mSv. However, it was found that intakes derived from industry personal air sampling (PAS) underestimated intake by up to three-fold. This study determined that sensitive bioassay techniques, such as TIB using an electrostatic collection chamber, are feasible for detecting low thorium lung burdens in longer-term workers at current mineral processing operations involving naturally occurring radioactive materials (NORM). This study improves the accuracy of historical exposures and highlights that PAS protocols require improvement to enhance radiation protection practices in industries handling NORM.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"973-985"},"PeriodicalIF":0.8,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13382897/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147676163","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
Correction to two articles. 更正两篇文章。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2026-07-20 DOI: 10.1093/rpd/ncag037
{"title":"Correction to two articles.","authors":"","doi":"10.1093/rpd/ncag037","DOIUrl":"10.1093/rpd/ncag037","url":null,"abstract":"","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"998"},"PeriodicalIF":0.8,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147623627","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
Radionuclide concentrations and radiation dose in some Nigerian edible mushrooms. 尼日利亚食用菌的放射性核素浓度和辐射剂量。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2026-07-20 DOI: 10.1093/rpd/ncag034
Ajayi O Samuel, Omotosho O Olusola
{"title":"Radionuclide concentrations and radiation dose in some Nigerian edible mushrooms.","authors":"Ajayi O Samuel, Omotosho O Olusola","doi":"10.1093/rpd/ncag034","DOIUrl":"10.1093/rpd/ncag034","url":null,"abstract":"<p><p>Human exposure to naturally occurring radionuclides through food consumption contributes to the radiation dose. Radionuclides in the soil are transferred to foodstuffs through plant nutrient uptake. This study measured the activity concentrations of 40K, 228Ra, and 226Ra in 37 mushroom samples from 15 species commonly consumed. Samples were analyzed using gamma-ray spectrometry employing a NaI(Tl) detector. The activity concentration (fresh mass) ranged from 10 to 252 Bq kg-1 for 40K, 0.6 to 6.0 Bq kg-1 for 228Ra, and 1.2 to 8.2 Bq kg-1 for 226Ra. The committed effective dose due to 1 y consumption of the mushrooms ranged from 1.2 to 1162 μSv y-1 across age groups 1, 5, 10, and 15 y and adults.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"931-939"},"PeriodicalIF":0.8,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147623582","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 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2026-07-20 DOI: 10.1093/rpd/ncag033
Masaru Nagai, Hideki Kakiuchi, Tsuyoshi Masuda
{"title":"Seasonal and interannual changes of HT deposition velocities in pasture soils.","authors":"Masaru Nagai, Hideki Kakiuchi, Tsuyoshi Masuda","doi":"10.1093/rpd/ncag033","DOIUrl":"10.1093/rpd/ncag033","url":null,"abstract":"<p><p>Two chamber types were used to investigate tritiated hydrogen (HT) deposition velocity in pasture soils in Rokkasho Village, Japan. A three-year experiment using an aerated chamber with atmospheric HT was conducted. The HT deposition velocity correlated with soil temperature (r = 0.87), which peaked in summer when the soil temperature was high, with a maximum of 0.28 mm s-1. Changes in the aboveground plant biomass caused by harvesting three times in summer did not influence the velocity, and interannual increases in root biomass also did not correlate with the velocity. Experiments using a closed chamber with D2 gas injection were conducted in five pastures. The hydrogen deposition velocity correlated negatively with the volumetric water content. In addition, the soil temperature, soil moisture, and hydrogen deposition velocity obtained from the two experiments were fitted to an equation expressing soil conductance. It was suggested that the hydrogen deposition rate exhibits seasonal variation.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"951-963"},"PeriodicalIF":0.8,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147633589","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
Design and development of automated beta irradiation and calibration system: effect of beam flattening filters on dose homogeneity using radiochromic films and angular beta dose dependency on ISO phantoms by measurement and MC simulation. 自动辐照和校准系统的设计与开发：光束平坦滤光片对放射性致色膜剂量均匀性的影响以及通过测量和MC模拟的角度β剂量对ISO幻象的依赖。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2026-07-20 DOI: 10.1093/rpd/ncag031
İbrahim Demirel, Haluk Yücel
{"title":"Design and development of automated beta irradiation and calibration system: effect of beam flattening filters on dose homogeneity using radiochromic films and angular beta dose dependency on ISO phantoms by measurement and MC simulation.","authors":"İbrahim Demirel, Haluk Yücel","doi":"10.1093/rpd/ncag031","DOIUrl":"10.1093/rpd/ncag031","url":null,"abstract":"<p><p>The present study is aimed at investigating dose homogeneity in a reference beta radiation field established for calibration of protection level devices and beta irradiation purposes as well as angular dose responses of the detectors on ISO rod and pillar phantoms. To this end, an automatic electromechanic system for beta irradiation and calibration (BIKS) was designed and manufactured with precise automatic control of the source shutter, stepper motors, detector rotation, and distance using microcontrollers. BIKS system enables to measure angular beta personal dose equivalents for skin-extremity Hp(0.07) and the lens of the eye Hp (3), including the corrections to standard reference conditions by using a multi-sensor. In beta radiation field, 2D spatial dose distributions were measured at 11 cm using radiochromic film dosimetry. Dose homogeneity is obtained better than ~91 ± 5%, on the average. Field uniformity was expanded using filters such as Hostaphan® PET films recommended by ISO 6980-1:2023 and other custom-designed filters. Angular dose responses of the detectors were measured over 0° to ±60° angle on ISO rod and pillar phantoms at 11, 20, and 30 cm. The measured differences in Hp(0.07) are <3% for all angles. BIKS system was also modelled using MC-based RayXpert® software. The estimated results are good agreement with those experimental ones.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"915-930"},"PeriodicalIF":0.8,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13382895/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147623613","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
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 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2026-07-20 DOI: 10.1093/rpd/ncag025
Sergey V Osovets, Evgenia S Grigoryeva, Tamara V Azizova
{"title":"Modelling the peripheral blood count dynamics in workers externally exposed to ionizing radiation during prolonged periods.","authors":"Sergey V Osovets, Evgenia S Grigoryeva, Tamara V Azizova","doi":"10.1093/rpd/ncag025","DOIUrl":"10.1093/rpd/ncag025","url":null,"abstract":"<p><p>The aim of the study was to model the dynamics of the peripheral blood count (platelets) in Russian nuclear workers chronically exposed to external gamma rays. Workers were divided in three groups depending on the total dose absorbed in bone marrow: <1.0 Gy, 1.0 to 2.0 Gy, ≥2.0 Gy. Factors such as the total dose, dose rate and duration of employment were considered as determinants of the platelet count dynamics. A dynamic regression model revealed statistically significant dose-response relationship in all study groups, while, in contrast, the analytical model fitted the data well only in the third group. The proposed method allows for the quantitative assessment of the time-dependent changes in the parameters of the peripheral blood relative to the individual initial level. This is critically important in case of chronic occupational exposure when cumulative dose increases with the increase in the duration of work with the ionizing radiation sources.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"964-972"},"PeriodicalIF":0.8,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147645441","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 the specific absorption rate among patients undergoing brain magnetic resonance imaging using 1.5 Tesla and 3 Tesla magnetic resonance imaging Machines in King Khalid University Hospital, Saudi Arabia. 沙特阿拉伯哈立德国王大学医院1.5 Tesla和3 Tesla磁共振成像仪行脑磁共振成像患者的比吸收率评价
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2026-07-06 DOI: 10.1093/rpd/ncag021
Meaad M Almusined, Abdulaziz S Alshabibi, Noor Alkhaibari
{"title":"Evaluation of the specific absorption rate among patients undergoing brain magnetic resonance imaging using 1.5 Tesla and 3 Tesla magnetic resonance imaging Machines in King Khalid University Hospital, Saudi Arabia.","authors":"Meaad M Almusined, Abdulaziz S Alshabibi, Noor Alkhaibari","doi":"10.1093/rpd/ncag021","DOIUrl":"10.1093/rpd/ncag021","url":null,"abstract":"<p><p>Magnetic Resonance Imaging (MRI) exposes patients to radiofrequency energy measured by the specific absorption rate (SAR), a key safety metric. This study aimed to compare SAR values in brain MRI scans performed at 1.5 Tesla (T) and 3 T to inform safer imaging practices. A retrospective analysis of 200 adult brain MRI scans (100 at 1.5 T and 100 at 3 T) from King Khalid University Hospital was conducted. Data included SAR, demographics, scan parameters, and contrast use. Statistical tests assessed differences (P < .05). Brain SAR was significantly higher in 1.5 T scans (mean = 3.01 W/kg) than in 3 T (mean = 1.37 W/kg). Higher SAR values were noted in females and younger patients. Factors like image type, sequence, weight, flip angle, and contrast use significantly impacted SAR. SAR is more influenced by imaging parameters and patient characteristics than MRI magnetic field strength. Personalized MRI protocols and SAR monitoring are essential for patient safety.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"850-859"},"PeriodicalIF":0.8,"publicationDate":"2026-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147459725","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：604180095
Book学术官方微信
小红书