Health physics最新文献_第8页

A Review of Radioactive Strontium for Radiation Protection Purposes. 放射性锶在辐射防护中的研究进展。

IF 1.4 4区医学

Health physics Pub Date : 2026-02-18 DOI: 10.1097/HP.0000000000002118

Géraldine Landon, Céline Bouvier-Capely, François Fay, Elias Fattal, Guillaume Phan

{"title":"A Review of Radioactive Strontium for Radiation Protection Purposes.","authors":"Géraldine Landon, Céline Bouvier-Capely, François Fay, Elias Fattal, Guillaume Phan","doi":"10.1097/HP.0000000000002118","DOIUrl":"https://doi.org/10.1097/HP.0000000000002118","url":null,"abstract":"Strontium is a ubiquitous element due to its presence, of both natural and anthropogenic origin, in all environmental compartments. In stable or radioactive form, it has numerous industrial and medical applications and is also used in research projects. For radioactive isotopes of strontium, the risk of exposure through irradiation or internal contamination is therefore very real. In addition, in the current international context, CBRN (chemical, biological, radiological, nuclear) risks have increased and diversified, with a more present terrorist component. Among the possible scenarios, malevolent acts such as the use of a \"dirty bomb\" containing sources of radionuclides (including strontium) currently used in industry, in the medical field, or for research must be envisaged. As a result, the authorities need to have effective and operational tools of prevention and protection at their disposal to be able to respond to these growing threats, which expose not only the civilian population but also the military and first responders. This review presents the most relevant up-to-date data, notably covering biokinetics, health effects, and pharmacological treatments following internal contamination exposure to radioactive strontium compounds. Following this critical review of existing research work, the need for additional advanced knowledge is emphasized in the fields of toxicity and medical treatments, which are fundamental areas in radiation protection.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146219510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Atmospheric Releases of Air-activated Radionuclides from Medical Cyclotrons: A Comparison among the Models Related to Population Doses. 医用回旋加速器释放的空气活化放射性核素的大气释放：与人口剂量相关模型的比较。

IF 1.4 4区医学

Health physics Pub Date : 2026-02-13 DOI: 10.1097/HP.0000000000002106

Simone Manenti, Pietro Castellone, Flavia Groppi, Antonella Del Vecchio, Riccardo Calandrino

引用次数: 0

Development of a Real-time Radiation Detection System that Uses IoT to Provide Real-time Monitoring in Custom-built Website. 开发一种利用物联网为定制网站提供实时监测的实时辐射检测系统。

IF 1.4 4区医学

Health physics Pub Date : 2026-02-10 DOI: 10.1097/HP.0000000000002127

Mubin Hossain Omio, Abdus Sattar Mollah

{"title":"Development of a Real-time Radiation Detection System that Uses IoT to Provide Real-time Monitoring in Custom-built Website.","authors":"Mubin Hossain Omio, Abdus Sattar Mollah","doi":"10.1097/HP.0000000000002127","DOIUrl":"https://doi.org/10.1097/HP.0000000000002127","url":null,"abstract":"Effective radiation monitoring is crucial for ensuring public security and safety, particularly in the event of nuclear (e.g., nuclear accident, fallout, etc.) or radiological (e.g., radiation source spill, dirty bombs, etc.) emergencies. Traditional monitoring methods often lack real-time capabilities and comprehensive data visualization and analysis, which can delay response time and increase further risks. To address this gap, this research proposes an Advanced Radiation Detector for real-time radiation monitoring. The novelty is in its use of an internet of things (IoT)-based framework to collect and transmit all the data (e.g., radiation level, temperature, pressure, humidity, and air quality) via a GSM module to web cloud all from one device with enhanced visualization in the self-made website. The study setup will obtain data across the area of the Military Institute of Science and Technology (MIST), Mirpur Cantonment, Dhaka, Bangladesh, using this Advanced Radiation Detector. This data is visualized by creating a scatter circle map of spatial distribution of radiation measurements. By visualizing radiation data taken from the self-developed detector and visualizing it using the self-made website, we found the Advanced Radiation Detector meets its objectives perfectly. This research aims to enable real-time radiation monitoring and provides timely insights for emergency responses. By integrating IoT in the system, it has directly overcome the limitation of traditional methods. The Advanced Radiation Detector has immense potential to improve security and safety measures. The current Rooppur Nuclear Power Plant (RNPP) development in Bangladesh emphasizes the necessity of customized solutions for efficient radiological risk management. In order to improve Bangladesh's nuclear safety framework, this study presents a revolutionary IoT-based radiation monitoring system that uses machine learning for real-time assessment and predictive analytics.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146149603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

NRC Medical Event Reports Related to Unplanned Dose to Fetus or Embryo, 2005-2024. 2005-2024年NRC与胎儿或胚胎意外剂量相关的医疗事件报告。

IF 1.4 4区医学

Health physics Pub Date : 2026-02-10 DOI: 10.1097/HP.0000000000002084

Jussi Sillanpaa, Jianling Yuan

引用次数: 0

Breaking the LNT Code: The First Detailed Evaluation of the Unpublished Technical Reports by the BEAR I Genetics Panel Used to Support Their Linearity Decision. 打破LNT代码：BEAR I遗传学小组用于支持其线性决策的未发表技术报告的首次详细评估。

IF 1.4 4区医学

Health physics Pub Date : 2026-02-10 DOI: 10.1097/HP.0000000000002088

Edward J Calabrese, Paul B Selby

{"title":"Breaking the LNT Code: The First Detailed Evaluation of the Unpublished Technical Reports by the BEAR I Genetics Panel Used to Support Their Linearity Decision.","authors":"Edward J Calabrese, Paul B Selby","doi":"10.1097/HP.0000000000002088","DOIUrl":"https://doi.org/10.1097/HP.0000000000002088","url":null,"abstract":"The 1956 recommendation by the US National Academy of Sciences (NAS) Biological Effects of Atomic Radiation (BEAR) I Genetics Panel to transition from a threshold to a linear dose response model for hereditary effects had a profound impact on environmental/occupational risk assessment, affecting policies/practices of US regulatory agencies, having much influence on regulations worldwide to the present. The recommendation gained influence due to the authority of the NAS, the prestige of the Panel, and the claim of a striking degree of uniformity among six independent estimates of radiation-induced hereditary risk. This claim was orchestrated by panelist James Crow who removed conflicting findings from the nine panelists who submitted estimates, acting with the approval of the entire Panel. These misrepresentations were ensured by the US NAS President who refused to share the Panel's technical reports and related documents with the scientific community. Ironically, the mouse mutation rate data used by the panelists who calculated risk estimates for either mouse or Drosophila were incorrect due to falsification by panelist William Russell without their knowledge. This action led to greatly exaggerated mutation risks and enhanced their overall false impression of agreement/scientific convergence. The actions of Crow were such that the already grossly inflated and falsified risk estimates of the panelists were made to appear in reasonably good agreement. These massive and compounded errors and deceptions have significantly affected regulatory practices for cancer risk assessment in the US and globally to the present. The present paper provides for the first time in the scientific literature an assessment of the unpublished technical reports of each of the nine participating geneticists of the BEAR I Genetics Panel and provides the basis for the above critical conclusions.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146149638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evolutionary Pressures Behind the Translocation Of Hematopoiesis to the Bone Marrow Cavity in Terrestrial Vertebrates. 陆生脊椎动物骨髓腔造血易位背后的进化压力。

IF 1.4 4区医学

Health physics Pub Date : 2026-02-02 DOI: 10.1097/HP.0000000000002086

P Andrew Karam, Robert P Gale, James S Welsh

{"title":"Evolutionary Pressures Behind the Translocation Of Hematopoiesis to the Bone Marrow Cavity in Terrestrial Vertebrates.","authors":"P Andrew Karam, Robert P Gale, James S Welsh","doi":"10.1097/HP.0000000000002086","DOIUrl":"https://doi.org/10.1097/HP.0000000000002086","url":null,"abstract":"Nearly 400 million years ago, vertebrate life began to transition from a purely aquatic existence to the terrestrial environment. Concurrently, exposure to ionizing radiation from cosmic and geologic sources increased substantially. Around the same time, vertebrate hematopoietic stem cells (HSCs) migrated from the liver and peri-nephric parts of the abdomen into the interior of bones. Interestingly, among today's vertebrates, only fish lack bone marrow. All other extant vertebrates maintain their HSCs in the bone marrow cavity. We propose protection from sub-lethal DNA damage to these long-lived radiation-sensitive cells because of exposure to ionizing radiation is why HSCs are sequestered with the bone marrow cavity. Our calculations support this hypothesis. Residence in the bone marrow cavity reduced exposure to penetrating background radiation and the concomitant DNA damage by at least 20%. This reduction was even more significant radio-biologically when considering the relatively hypoxic conditions within the bone marrow cavity and oxygen's role in enhancing radiogenic DNA damage. This may be particularly relevant considering the oxygen-rich atmosphere in existence at the time of transitioning to a terrestrial habitat. Given the exquisite sensitivity of HSCs and proliferating blood cells to radiation, we propose this translocation provided a selective advantage and that protection from sub-lethal radiogenic DNA damage at least partially explains translocation of hematopoietic cells to the bone marrow cavity in terrestrial vertebrates.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146105331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of Attila4MC Mesh Parameters in Large-scale Models for Nuclear Decommissioning Planning. 核退役规划大尺度模型Attila4MC网格参数优化

IF 1.4 4区医学

Health physics Pub Date : 2026-02-02 DOI: 10.1097/HP.0000000000002105

Justina A M Freilich, Camille J Palmer

{"title":"Optimization of Attila4MC Mesh Parameters in Large-scale Models for Nuclear Decommissioning Planning.","authors":"Justina A M Freilich, Camille J Palmer","doi":"10.1097/HP.0000000000002105","DOIUrl":"https://doi.org/10.1097/HP.0000000000002105","url":null,"abstract":"The anticipated increase in nuclear decommissioning in the coming decades requires innovative approaches to maintain worker exposure as low as reasonably achievable. Occupational dose, an important component of cost-benefit analysis and work planning in decommissioning, can be estimated using radiation transport codes. Monte Carlo N-Particle (MCNP) is a robust, well-established code that has been used to model a breadth of geometries and source terms. Attila4MC offers a graphical user interface for users to build and run MCNP simulations and create an unstructured mesh of computer-aided design (CAD) models with tunable meshing parameters, including element edge length bounds and curvature refinement features. To understand how these parameters might be optimized for a large-scale model for dose estimation, a building containing gloveboxes, a hot cell, ventilation, robotic characterization tools, and operators was modeled in a CAD program. Source terms from available literature were applied to the equipment, and the operator dose was tracked for several exposure geometries. Mesh parameters, including maximum edge length (MEL) bounds, curvature refinement part selection, d/h ratio, and minimum edge length, were varied, and the resulting dose estimates were compared. The upper MEL bound had little effect on the estimated dose rate, but the varying the lower bound resulted in a 40% change in dose rate compared to the default case. Curvature refinement increased the MCNP figure of merit very slightly, about 2.6% when applied globally, but increased by over 31% when applied to only selected parts within the model. Both minimum edge length and d/h ratio showed a maximum change in dose rate of 10% compared to the default case for the values investigated in this study. Finally, the dose rate results suggest that the use of robotic or remote characterization methods may reduce occupational dose to workers by several orders of magnitude for the modeled scenario.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146105366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Radiopharmaceutical Industry in Morocco: An Analytical Overview of Constraints and Developmental Prospects. 摩洛哥的放射性制药工业：制约因素和发展前景的分析概述。

IF 1.4 4区医学

Health physics Pub Date : 2026-02-02 DOI: 10.1097/HP.0000000000002080

Hasnae Guerrouj, Ayat Mouaden, Mustapha Bouatia, Majdouline Bel Lakhdar

{"title":"The Radiopharmaceutical Industry in Morocco: An Analytical Overview of Constraints and Developmental Prospects.","authors":"Hasnae Guerrouj, Ayat Mouaden, Mustapha Bouatia, Majdouline Bel Lakhdar","doi":"10.1097/HP.0000000000002080","DOIUrl":"https://doi.org/10.1097/HP.0000000000002080","url":null,"abstract":"The Moroccan radiopharmaceutical industry is currently under development. The country has two operational cyclotrons capable of producing fluorine-18-labeled radiopharmaceuticals (RPs), primarily for PET imaging, while all other therapeutic and SPECT-dedicated RPs are imported. Importation processes are administratively complex and subject to fluctuations in global supply chains. The RP industry also faces additional challenges, including a stringent regulatory framework, limited accessibility, reimbursement barriers, and a scarcity of trained professionals in radiopharmacy and nuclear medicine more broadly. Furthermore, limited education and awareness among referring clinicians hinder the integration of some nuclear medicine procedures into routine clinical practice. Despite these challenges, Morocco has significant potential for localized RP production. Strategic investment and partnerships with key international agencies could enhance radiopharmacy infrastructure, streamline regulatory pathways for local manufacturing, and foster the development of new training programs for professionals in Morocco and other African countries.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146105001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Using a Retrospective Analysis to Conduct Prospective Dose Evaluations for Medical Health Physics Programs. 使用回顾性分析对医学健康物理项目进行前瞻性剂量评估。

IF 1.4 4区医学

Health physics Pub Date : 2026-02-02 DOI: 10.1097/HP.0000000000002120

Jason D Hout, James Kyle Underwood, James Holland, Glenn M Sturchio

{"title":"Using a Retrospective Analysis to Conduct Prospective Dose Evaluations for Medical Health Physics Programs.","authors":"Jason D Hout, James Kyle Underwood, James Holland, Glenn M Sturchio","doi":"10.1097/HP.0000000000002120","DOIUrl":"https://doi.org/10.1097/HP.0000000000002120","url":null,"abstract":"In radiation safety programs, particularly in large healthcare systems, personal dosimetry is often issued conservatively, leading to unnecessary monitoring of individuals with minimal exposure risk. This study describes a structured approach implemented at Mayo Clinic to evaluate the necessity and exchange frequency of dosimeters using two years of retrospective radiation dose data. Personnel were grouped based on job type and workplace conditions, then dosimetry data was analyzed at the 50th percentile, 95th percentile, and maximum levels against conservative thresholds. Regulatory requirements and managerial input were incorporated throughout the decision-making process. From 2020 to 2024, this method resulted in the reduction of dosimeter frequency for 82 individuals and complete removal for 1,067: reducing dosimeter issuance by 4,912 each year. The approach enabled a more efficient use of resources, allowing radiation safety efforts to be directed toward higher-risk groups and activities without compromising compliance or worker protection. This model provides a conservative, scalable framework for optimizing dosimetry programs in healthcare and potentially other radiation-using industries.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146105318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distribution of Natural Radionuclides at the Nevada National Security Site. 内华达国家安全基地天然放射性核素的分布。

IF 1.4 4区医学

Health physics Pub Date : 2026-02-02 DOI: 10.1097/HP.0000000000002111

Xianan Liu, Ronald W Warren

引用次数: 0