Health physics最新文献_第7页

Update to Conclusions in Evaluation of the Radioactive Material Released in the Harborview Research and Training Building and Some Implications for Emergency Response. 港景研究与培训大楼放射性物质释放评价结论的更新及其对应急响应的启示。

IF 1.2 4区医学

Health physics Pub Date : 2026-08-19 DOI: 10.1097/HP.0000000000002203

Stephen V Musolino

引用次数: 0

Dosimetric Characterization of the 125I BEBIG IsoSeed I25.S06 source Using Python-Based Calculations. 125I BEBIG同工籽I25的剂量学特性S06源码使用基于python的计算。

IF 1.2 4区医学

Health physics Pub Date : 2026-08-19 DOI: 10.1097/HP.0000000000002202

Manal El Asri, Omar El Bounagui

引用次数: 0

Radiation Safety Training and Interdepartmental Coordination: A Mixed-methods Study among Multidisciplinary Healthcare Staff. 辐射安全培训与部门间协调：多学科医护人员的混合方法研究。

IF 1.2 4区医学

Health physics Pub Date : 2026-08-03 DOI: 10.1097/HP.0000000000002194

Sahal Alotaibi

{"title":"Radiation Safety Training and Interdepartmental Coordination: A Mixed-methods Study among Multidisciplinary Healthcare Staff.","authors":"Sahal Alotaibi","doi":"10.1097/HP.0000000000002194","DOIUrl":"https://doi.org/10.1097/HP.0000000000002194","url":null,"abstract":"To evaluate the relationship between specialized radiation safety training and the effectiveness of interdepartmental coordination among a multidisciplinary cohort of healthcare professionals. This cross-sectional, mixed-methods study surveyed 173 healthcare professionals from a tertiary care hospital in Saudi Arabia (69 nurses, 52 medical doctors, 52 medical technologists) using a validated questionnaire. Training adequacy and coordination effectiveness were measured via Likert scale items, while open-ended questions identified barriers and areas for improvement. Data were analyzed using Kruskal-Wallis tests for professional role comparisons and Spearman's rank correlation to assess the link between training and coordination. Across the three professional groups, training scores ranged from 2.89 to 3.67, with medical technologists reporting significantly higher scores (3.67 ± 0.55) compared to nurses (3.11 ± 0.67) and doctors (2.89 ± 0.67). Similarly, coordination scores ranged from 2.83 to 3.15, with medical technologists reporting significantly higher scores (3.15 ± 0.62) compared to nurses (2.91 ± 0.61) and doctors (2.83 ± 0.73) (H = 32.651, p < 0.0001). Spearman's correlation revealed no significant relationship between training levels and coordination effectiveness (ρ = -0.038, p = 0.6157). Qualitative analysis identified limited access to radiation safety resources (10.4%, n = 18), unclear role definitions and responsibilities (6.9%, n = 12), heavy workload and staff shortages (6.9%, n = 12), and insufficient awareness of radiation risks (6.9%, n = 12) as primary barriers. Individualized radiation safety training may be insufficient to guarantee effective interdepartmental collaboration. To establish a sustainable safety culture, healthcare organizations must move beyond didactic education toward systemic solutions, including standardized protocols, clear role definitions, and resource-integrated workflows.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148669349","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

DoseBusters: A Fully Immersive Virtual Reality Game for Radiation Protection and Detection. 剂量终结者：一个完全沉浸式的虚拟现实游戏辐射防护和检测。

IF 1.2 4区医学

Health physics Pub Date : 2026-08-01 Epub Date: 2026-06-19 DOI: 10.1097/HP.0000000000002146

Jackson H Eggerd, Estefania Munoz Barron, Jianyu Tu, Jordan D Noey, Kimberlee J Kearfott

{"title":"DoseBusters: A Fully Immersive Virtual Reality Game for Radiation Protection and Detection.","authors":"Jackson H Eggerd, Estefania Munoz Barron, Jianyu Tu, Jordan D Noey, Kimberlee J Kearfott","doi":"10.1097/HP.0000000000002146","DOIUrl":"10.1097/HP.0000000000002146","url":null,"abstract":"Virtual reality (VR) technology has been increasingly explored for creating immersive visual and interactive experiences in education and outreach, including applications related to radiation. A video game project named DoseBusters was created by a team of primarily undergraduate students as a method of outreach to attract interest in nuclear sciences while teaching fundamental radiological science and radiation protection principles. DoseBusters employs instructional dialog, experiments, and puzzle-like gameplay scenarios to engage students and the public. The Unity game engine was selected for building and deploying the game application, with Blender used for creating three-dimensional models of game assets. The Meta Quest line of headsets was used for testing. DoseBusters employs simple point-source gamma radiation assumptions for its real-time dose rate calculations. It implements shielding calculations that exclude buildup and scatter. Real-world measured data are used to accurately model detector sensitivities and spectroscopic measurements. A tutorial room environment uses a series of experiments to teach players about radiation physics, also serving to validate certain elements of the radiation physics simulation. Further minigames can be played to provide more depth and experience relating to source surveying and shielding principles. As part of the project's development, numerous realistic radiation and environmental three-dimensional models were created, enhancing player immersion. Future work will involve using newly created environments for gameplay scenarios. Testing of all game play will ultimately be conducted with user feedback surveyed afterwards. Improvements to the game's radiation simulation are also planned, including the addition of alpha and beta radiation.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":"131 2","pages":"73-91"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148317033","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

Radioactive Seed Localization for the Resection of Nonpalpable Breast Lesions: A "No Later Than" Date Dosimetric Approach. 放射性种子定位切除不可触及的乳房病变：一种“不迟于”日期剂量测定方法。

IF 1.2 4区医学

Health physics Pub Date : 2026-08-01 Epub Date: 2026-06-09 DOI: 10.1097/HP.0000000000002161

Katherine Ward, Glenn Sturchio, Charles Wilson, Emily Caffrey

{"title":"Radioactive Seed Localization for the Resection of Nonpalpable Breast Lesions: A \"No Later Than\" Date Dosimetric Approach.","authors":"Katherine Ward, Glenn Sturchio, Charles Wilson, Emily Caffrey","doi":"10.1097/HP.0000000000002161","DOIUrl":"10.1097/HP.0000000000002161","url":null,"abstract":"Radioactive seed localization (RSL) using 125 I is widely employed for the surgical resection of nonpalpable breast lesions due to its precision and scheduling flexibility. Although clinical experience supports its safety, quantifying radiation dose to surrounding healthy breast tissue remains important for establishing conservative operational guidelines, including acceptable implant duration prior to surgery. In this study, cumulative dose to healthy breast tissue from an implanted 125 I localization seed was evaluated using two independent computational approaches: a simplified hemispherical breast model implemented in MATLAB and a Monte Carlo simulation developed in Mathematica. Both models incorporated dosimetric parameters from AAPM Task Group 43, including the dose-rate constant, radial dose function, and two-dimensional anisotropy function, along with tissue properties consistent with International Commission on Radiological Protection recommendations. Results from both models demonstrated that cumulative dose decreases rapidly with increasing distance from the seed and increases slowly with implantation time due to the low dose rate and long half-life of 125 I. At a distance of 1 cm, cumulative dose reached approximately 3-4 cGy after 5 d and approximately 50 cGy only after extended implantation times exceeding 200 d. Agreement between the MATLAB and Monte Carlo models was within expected limits given differences in deterministic and stochastic modeling approaches. These findings indicate that radiation dose to healthy breast tissue from RSL remains well below thresholds associated with deterministic effects for clinically relevant implantation times. The results support the use of a conservative \"no later than\" removal date while reaffirming the radiological safety and practical advantages of 125 I seed localization in breast cancer surgery.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":" ","pages":"114-121"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148204756","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

Radiation Protection Abstracts, Volume 46, Number 1. 辐射防护文摘，第46卷，第1期。

IF 1.2 4区医学

Health physics Pub Date : 2026-08-01 Epub Date: 2026-06-19 DOI: 10.1097/HP.0000000000002154

引用次数: 0

An Affordable Open-source Flexible Spectroscopic Radiation Mapping System Employing Sound Card Digitization. 基于声卡数字化的可负担的开源柔性光谱辐射测绘系统。

IF 1.2 4区医学

Health physics Pub Date : 2026-08-01 Epub Date: 2025-08-29 DOI: 10.1097/HP.0000000000002026

Caleb M Bush, Ryan A Kim, Kimberlee J Kearfott

{"title":"An Affordable Open-source Flexible Spectroscopic Radiation Mapping System Employing Sound Card Digitization.","authors":"Caleb M Bush, Ryan A Kim, Kimberlee J Kearfott","doi":"10.1097/HP.0000000000002026","DOIUrl":"10.1097/HP.0000000000002026","url":null,"abstract":"In sound card-based gamma spectroscopy, a computer sound card serves as the multichannel analyzer in a spectroscopic system with a lower price point and more compact form factor than many traditional systems. A mobile system for radiation measurements, named RadMap, was created to investigate the potential of using sound card spectroscopy in a handheld, mobile radiation measurement and spectroscopic device. RadMap was designed using commercially available parts, including a sound card spectrometer, and is compatible with most photomultiplier tube scintillators for spectroscopic applications or Geiger-Mueller detectors for non-spectroscopic usage. Measurements of 137 Cs, 22 Na, 54 Mn, and 60 Co were made using RadMap and two professional desktop gamma spectroscopy systems to characterize RadMap's spectroscopic capabilities relative to those commercial devices. Radiation surveys were created of a 14,000 m 2 outdoor space on a college campus using RadMap and other commercially available survey meters for comparison. The results of these experiments suggest that RadMap can provide high quality spectroscopic information and mapable survey information in a device with a favorable price point while enabling easy user modifications. Exact details regarding the components used and their functions are provided to facilitate the creation or further development of a similar system by any interested party.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":" ","pages":"92-100"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144951705","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

Evaluating Feline Release Criteria Following 131 I Therapy for Hyperthyroidism. 评估猫在131I治疗甲状腺机能亢进后的释放标准。

IF 1.2 4区医学

Health physics Pub Date : 2026-08-01 Epub Date: 2026-05-14 DOI: 10.1097/HP.0000000000002162

Anthony R Davila, Wei-Hsung Wang

{"title":"Evaluating Feline Release Criteria Following 131 I Therapy for Hyperthyroidism.","authors":"Anthony R Davila, Wei-Hsung Wang","doi":"10.1097/HP.0000000000002162","DOIUrl":"10.1097/HP.0000000000002162","url":null,"abstract":"Hyperthyroidism is a very common endocrine disorder in both humans and cats. Radioactive iodine ablation therapy is the preferred treatment option because of its high success rate; however, the patient becomes a radiation source and poses a potential radiological risk to others. The regulations governing release criteria differ between human medicine and veterinary medicine. A human patient can receive up to 1,200 MBq of 131 I and be discharged the same day; yet a cat can receive a dose as low as 74 MBq and require weeks of hospitalization. This discrepancy has not been satisfactorily addressed; and overly restrictive release criteria can place a burden on the veterinary staff, the cat, and the owner. In this study, administered activities and exposure rates are measured for hyperthyroid cats undergoing treatment at Louisiana State University Veterinary Teaching Hospital to determine if current criteria are too restrictive for releasing cats to their owners. Additionally, radioassays are performed on the surface of the cat, its excreta, and its environment to characterize the potential exposures to the cat owners. Annual total effective dose equivalents to the cat owners are calculated using the Nuclear Regulatory Commission's equation from Regulatory Guide 8.39 Revision 1. The results of the assays show that minimal radioactivity is present post-treatment. The results of the total effective dose equivalent estimates indicate that most cats can be released the same day of injection and that the resulting total effective dose equivalent to the cat owner is unlikely to exceed 1 mSv, suggesting that current veterinary release criteria are overly conservative.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":" ","pages":"122-137"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147941319","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

Specialized Radiological Assets for Navigable Two-dimensional and Three-dimensional Virtual and Augmented Reality. 专门用于可导航的二维和三维虚拟和增强现实的放射资产。

IF 1.2 4区医学

Health physics Pub Date : 2026-08-01 Epub Date: 2026-06-19 DOI: 10.1097/HP.0000000000002115

Jianyu Tu, Estefania Munoz Barron, Jackson H Eggerd, Jordan D Noey, Kimberlee J Kearfott

{"title":"Specialized Radiological Assets for Navigable Two-dimensional and Three-dimensional Virtual and Augmented Reality.","authors":"Jianyu Tu, Estefania Munoz Barron, Jackson H Eggerd, Jordan D Noey, Kimberlee J Kearfott","doi":"10.1097/HP.0000000000002115","DOIUrl":"10.1097/HP.0000000000002115","url":null,"abstract":"Virtual reality holds promise as a tool for recruiting new individuals into the health physics profession and for providing realistic experiences for both junior and senior radiation protection professionals. Virtual environments are constructed using models of objects, also known as assets. This work presents a collection of radiological assets unavailable elsewhere, which could be immediately applied in fully immersive three-dimensional environments as well as used for more standard two-dimensional applications. Radioactive sources, shields, nuclear electronics, and radiation detectors are included. Strategies for producing realistic but performance-optimized assets are included. A fully immersive virtual reality game about radiation protection incorporating the assets presented in this paper is currently being designed by the authors to interest students in nuclear science and engineering at high schools and colleges. The resulting realistic assets are further available upon request to any interested individuals for incorporation into not-for-profit outreach or professional-level training using virtual reality experiences.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":"131 2","pages":"138-150"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148316981","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

Factors Influencing the Minimum Detectable Dose for Thermoluminescent Dosimeters. 影响热释光剂量计最小检测剂量的因素。

IF 1.2 4区医学

Health physics Pub Date : 2026-08-01 Epub Date: 2025-09-17 DOI: 10.1097/HP.0000000000002020

Jordan D Noey, Kimberlee J Kearfott

{"title":"Factors Influencing the Minimum Detectable Dose for Thermoluminescent Dosimeters.","authors":"Jordan D Noey, Kimberlee J Kearfott","doi":"10.1097/HP.0000000000002020","DOIUrl":"10.1097/HP.0000000000002020","url":null,"abstract":"This study examines the range of methodologies used to determine the minimum detectable dose for LiF:Mg,Ti thermoluminescent dosimeters, emphasizing the importance of incorporating uncertainties when assessing variability in dosimeter response. Dosimeters serve various purposes, such as verifying delivered doses, personnel monitoring, environmental surveillance, and research. Each application has unique performance requirements: research may prioritize accuracy and sensitivity at low doses, while routine monitoring favors robustness and efficiency. Dosimetry goals must therefore balance precision, practicality, and resource constraints based on the specific context. This study focuses on four operational factors-dose calibrations, machine vs. oven annealing, heating rate optimization during readout, and glow curve analysis techniques-that shape the variability observed in dosimeter response. Six common methods for calculating the minimum detectable dose were identified from literature and explored in this study. The results demonstrate a wide range of minimum detectable dose values of 10 μGy to 104 μGy, which reflects the combined influence of both uncertainties and the choice of equation. Heating rate was found to have the most significant impact on variance, while annealing methods and analysis techniques had moderate effects, and calibration uncertainties showed smaller implications. Rather than striving solely for the lowest minimum detectable dose, this study features the importance of understanding how these factors influence the minimum detectable dose and applying this knowledge to achieve realistic and application-specific dosimetry goals.","PeriodicalId":12976,"journal":{"name":"Health physics","volume":" ","pages":"101-113"},"PeriodicalIF":1.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145075233","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