Applied Radiation and Isotopes最新文献_第5页

Production cross sections and thick target yields of α-particle-induced reactions on natFe below 50 MeV 50 MeV以下的natFe上α-颗粒诱导反应的生产截面和厚靶产率。

IF 1.8 3区工程技术

Applied Radiation and Isotopes Pub Date : 2026-04-01 Epub Date: 2026-01-22 DOI: 10.1016/j.apradiso.2026.112460

Masayuki Aikawa , Hiroya Chiba , He Huang , Damdinsuren Gantumur , Akihiro Nambu , Hiromitsu Haba

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Validation of MCNP6 and FISPACT-II calculations to predict the activation of selected beta emitters produced in the Budapest Research Reactor 验证MCNP6和FISPACT-II计算，以预测布达佩斯研究堆中产生的选定β发射器的激活

IF 1.8 3区工程技术

Applied Radiation and Isotopes Pub Date : 2026-04-01 Epub Date: 2026-01-16 DOI: 10.1016/j.apradiso.2026.112450

Boglárka Maróti , Zoltán Kis , Noémi Anna Buczkó , Katalin Gméling , László Szentmiklósi

引用次数: 0

Diagnostic reference levels for pediatric fluoroscopy procedures: A systematic review 儿童透视检查的诊断参考水平：一项系统综述。

IF 1.8 3区工程技术

Applied Radiation and Isotopes Pub Date : 2026-04-01 Epub Date: 2026-01-24 DOI: 10.1016/j.apradiso.2026.112465

Khalid M. Aloufi

{"title":"Diagnostic reference levels for pediatric fluoroscopy procedures: A systematic review","authors":"Khalid M. Aloufi","doi":"10.1016/j.apradiso.2026.112465","DOIUrl":"10.1016/j.apradiso.2026.112465","url":null,"abstract":"<div><h3>Aim</h3><div>This study aims to provide a systematic review of the DRLs for pediatric diagnostic and interventional fluoroscopy procedures.</div></div><div><h3>Methods</h3><div>This systematic review included the published studies in pediatric diagnostic and interventional fluoroscopy procedures from June 2012 to December 2025 on the PubMed/MEDLINE, ScienceDirect, and Google Scholar websites. Fourteen articles have met this study's inclusion. The included data was divided into two groups, which were diagnostic and interventional procedures. Each group was divided into two categories, which were age-specific and weight-specific DRLs.</div></div><div><h3>Results</h3><div>The collected values for DRLs show high variation in both DAPs and FTs, and the I<sup>2</sup> test shows that there was no homogeneity between procedures of the same type. In addition, the results suggest that there was no consistency in the procedures performed between institutions. The magnitude and variation of DRL results for the interventional fluoroscopy procedures were significantly higher than that for the diagnostic procedures. The high DRLs were directly related to the high FTs required to perform the interventional procedures. The average FT required for the interventional fluoroscopy procedure was 9.75 min, whereas 2.3 min was required for the diagnostic fluoroscopy procedure.</div></div><div><h3>Conclusions</h3><div>There were significant differences in both DAPs and FTs between the results obtained from different medical institutions. The higher DRLs were strongly related to the higher FTs required to perform the interventional procedures.</div></div>","PeriodicalId":8096,"journal":{"name":"Applied Radiation and Isotopes","volume":"230 ","pages":"Article 112465"},"PeriodicalIF":1.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146163454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Absorbed-dose energy dependence calculation relevant to EBT3, HD-V2, MD-V3, and RTQA2 Gafchromic films in electron fields 电子场中EBT3、HD-V2、MD-V3和RTQA2钆致变色膜的吸收剂量能量依赖性计算

IF 1.8 3区工程技术

Applied Radiation and Isotopes Pub Date : 2026-04-01 Epub Date: 2026-01-23 DOI: 10.1016/j.apradiso.2026.112464

Mohammad Khosravani, Hamid Reza Baghani, Reza Shamsabadi

{"title":"Absorbed-dose energy dependence calculation relevant to EBT3, HD-V2, MD-V3, and RTQA2 Gafchromic films in electron fields","authors":"Mohammad Khosravani, Hamid Reza Baghani, Reza Shamsabadi","doi":"10.1016/j.apradiso.2026.112464","DOIUrl":"10.1016/j.apradiso.2026.112464","url":null,"abstract":"<div><div>Despite the nominally independent response of radiation dosimeters to beam energy within a given range, all types of dosimeters show a degree of energy dependence. Current study aims to evaluate the absorbed-dose energy dependence of certain Gafchromic films in electron fields through Monte Carlo (MC) simulation and analytical approaches.</div><div>Four different film types including EBT3, HD-V2, MD-V3, and RTQA2 were considered. The MCNPX code was employed to simulate the absorbed-dose energy dependence of considered Gafchromic films inside a water-filled cylindrical phantom with a height of 30 cm and a radius of 20 cm. Furthermore, provided physical reference data by NIST were used for analytical evaluations of absorbed-dose energy dependence response. The energy dependence of selected Gafchromic films was calculated at different electron energies from 4 MeV to 20 MeV.</div><div>The obtained results showed an energy dependence response for all studied films. Among the considered films, EBT3 and HD-V2 respectively, showed the least and the most absorbed-dose energy dependence in electron field. There was good agreement between the obtained results by MC simulation and analytical approach (with differences of less than 4 %).</div><div>From the results, the observed energy dependence of studied Gafchromic films may be challenging for accurate dose measurements in electron fields. Furthermore, the agreement between Monte Carlo simulated and analytically determined f(Q) results indicates that Monte Carlo simulation can be employed as a reliable alternative to the analytical approach for evaluating the absorbed-dose energy dependence of Gafchromic films.</div></div>","PeriodicalId":8096,"journal":{"name":"Applied Radiation and Isotopes","volume":"230 ","pages":"Article 112464"},"PeriodicalIF":1.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hypofractionated VMAT for prostate cancer: Integrating second-cancer modelling into clinical and policy decisions 前列腺癌的低分割VMAT：将第二癌模型整合到临床和政策决策中

IF 1.8 3区工程技术

Applied Radiation and Isotopes Pub Date : 2026-04-01 Epub Date: 2026-01-23 DOI: 10.1016/j.apradiso.2026.112466

Amit Kumar Gupta , Anusha Putcha , Varshini Vadhithala , Sachin Kumar

引用次数: 0

Influence of D2O substitution on BNCT dosimetry with the AB-BNCT system: A combined Monte Carlo and experimental study D2O取代对AB-BNCT体系BNCT剂量测定的影响：蒙特卡罗与实验相结合的研究。

IF 1.8 3区工程技术

Applied Radiation and Isotopes Pub Date : 2026-04-01 Epub Date: 2026-02-06 DOI: 10.1016/j.apradiso.2026.112483

Junli Ge , Diyun Shu , Changran Geng , Jinkai Yang , Xiaobin Tang , Yuan-Hao Liu

{"title":"Influence of D2O substitution on BNCT dosimetry with the AB-BNCT system: A combined Monte Carlo and experimental study","authors":"Junli Ge , Diyun Shu , Changran Geng , Jinkai Yang , Xiaobin Tang , Yuan-Hao Liu","doi":"10.1016/j.apradiso.2026.112483","DOIUrl":"10.1016/j.apradiso.2026.112483","url":null,"abstract":"<div><div>Boron neutron capture therapy (BNCT) faces challenges in delivering sufficient therapeutic dose to deep-seated tumors due to limited neutron penetration. Previous studies indicate that replacing tissue light water (H<sub>2</sub>O) with heavy water (D<sub>2</sub>O) can enhance neutron penetration while reducing photon dose under specific conditions. However, the applicability of this method within the NeuPex accelerator-based BNCT system requires further investigation and validation. In this study, Monte Carlo simulations with a radiation computational phantom quantified D<sub>2</sub>O substitution effects on BNCT dosimetry for the NeuPex system, complemented by experimental measurements in a water phantom to assess neutron penetration depth and photon dose reduction. Simulation results indicate that when tumor depth exceeds 6 cm, D<sub>2</sub>O substitution enhances the dosimetric performance of BNCT within the tumor. At a tumor depth of 7 cm, 20% D<sub>2</sub>O substitution increases the tumor minimum dose by 14.1% and <em>D</em><sub>80</sub> by 8.2%. Experimental results further demonstrate that D<sub>2</sub>O substitution enhances neutron penetration while reducing photon dose contamination. With 20% D<sub>2</sub>O substitution, the reaction rate increases beyond depths of approximately 6 cm. This study demonstrates the feasibility and applicability of D<sub>2</sub>O substitution in the NeuPex system, establishing a theoretical foundation for future clinical implementation strategies.</div></div>","PeriodicalId":8096,"journal":{"name":"Applied Radiation and Isotopes","volume":"230 ","pages":"Article 112483"},"PeriodicalIF":1.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146177626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A study of 225Ac production cross section by proton, deuteron, and neutron irradiation on 232Th targets based on FLUKA and PHITS toolkit 基于FLUKA和PHITS的质子、氘核和中子辐照232Th靶的225Ac产生截面研究

IF 1.8 3区工程技术

Applied Radiation and Isotopes Pub Date : 2026-04-01 Epub Date: 2026-02-07 DOI: 10.1016/j.apradiso.2026.112487

Ke-Ying Zhu , Kai-Jin Yan , Gao-Long Zhang , Wei Zhang , Chang Cheng , Xiao-Yu Xu , Zhen Huang , Wei-Wei Qu

{"title":"A study of 225Ac production cross section by proton, deuteron, and neutron irradiation on 232Th targets based on FLUKA and PHITS toolkit","authors":"Ke-Ying Zhu , Kai-Jin Yan , Gao-Long Zhang , Wei Zhang , Chang Cheng , Xiao-Yu Xu , Zhen Huang , Wei-Wei Qu","doi":"10.1016/j.apradiso.2026.112487","DOIUrl":"10.1016/j.apradiso.2026.112487","url":null,"abstract":"<div><div>The limited global supply of actinium-225 remains a major bottleneck for its widespread clinical application in targeted alpha therapy, highlighting the importance of exploring alternative methods for large-scale production. In this study, the FLUKA and PHITS Monte Carlo transport code was employed to simulate the irradiation of thorium targets with protons, neutrons, and deuterons in the energy range of 20 to 800 MeV per nucleon. The production cross sections of <sup>225</sup>Ac for different incident particles were systematically compared to identify the most promising production pathway for accelerator-based synthesis. Additionally, the study reports production cross section data for actinium, thorium, radium, and protactinium isotopes. By comparing the simulated results with available experimental data, the reliability of the nuclear reaction models was assessed, and directions for further refinement of Monte Carlo-based physical models in radionuclide production simulations were proposed.</div></div>","PeriodicalId":8096,"journal":{"name":"Applied Radiation and Isotopes","volume":"230 ","pages":"Article 112487"},"PeriodicalIF":1.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146155811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optically Stimulated Luminescence (OSL) characteristics of seven different color types of quartz samples under 470 and 405 nm stimulation 470和405 nm刺激下七种不同颜色石英样品的光激发发光特性

IF 1.8 3区工程技术

Applied Radiation and Isotopes Pub Date : 2026-04-01 Epub Date: 2026-02-03 DOI: 10.1016/j.apradiso.2026.112478

Bruno Araujo, Rene Rocca, Juan Mittani

{"title":"Optically Stimulated Luminescence (OSL) characteristics of seven different color types of quartz samples under 470 and 405 nm stimulation","authors":"Bruno Araujo, Rene Rocca, Juan Mittani","doi":"10.1016/j.apradiso.2026.112478","DOIUrl":"10.1016/j.apradiso.2026.112478","url":null,"abstract":"<div><div>This study investigates the Optically Stimulated Luminescence (OSL) characteristics of seven distinct color varieties of natural Brazilian quartz to characterize their charge-storage mechanisms relevant to radiation dosimetry. OSL measurements were performed using Blue Stimulated Luminescence (BSL) at 470 nm and Violet Stimulated Luminescence (VSL) at 405 nm. OSL component analysis utilized the Pseudo-Linear Modulation technique to determine the photoionization cross-section (σ) for each resolved trap. The results indicate that the OSL response is highly heterogeneous and dependent on both the sample's coloration and the stimulation wavelength. Crucially, a non-correlation was established between the integrated TL intensity and the OSL signal intensity, suggesting that the charge trap populations accessed by thermal and optical means are not universally shared across all quartz varieties. The VSL method proved superior for trap resolution, consistently detecting one or two more components per sample than BSL, underscoring the shorter wavelength's ability to probe deeper traps. Quantitative analysis confirmed low occupancy of conventional slow traps and, significantly, identified three novel photoionization cross-sections (C3, C6, and C8) unique to these colored mineral quartz samples. Furthermore, for specific components of some colored quartz varieties, the cross-section at 470 nm exceeded that at 405 nm, indicating that photo-eviction efficiency is not strictly monotonically increasing function of photon energy. Instead, it is modulated by the specific trap kinetics and spectral sensitivity inherent to the mineral's impurity-related defect structures.</div></div>","PeriodicalId":8096,"journal":{"name":"Applied Radiation and Isotopes","volume":"230 ","pages":"Article 112478"},"PeriodicalIF":1.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146155904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The EURAMET.RI(II)-S9 interlaboratory comparison of the radionuclide calibrators EURAMET。RI(II)-S9放射性核素校准器的实验室间比较

IF 1.8 3区工程技术

Applied Radiation and Isotopes Pub Date : 2026-04-01 Epub Date: 2026-01-13 DOI: 10.1016/j.apradiso.2026.112434

Arūnas Gudelis , Andrei Antohe , Eszter Bodnár , Robert Bretner-Messler , Pavel Dryák , Andrej Javorník , Kristyna Kohoutova , Petr Kovář , Matej Krivošík , Ioana Lalau , Patrick Lobner , Liviu-Cristian Mihailescu , Anita Peka , Miguel Roteta , Jan Rusnák , Vladimír Sochor , Jana Sochorová , Jiri Šuráň , Laszlo Szücs , Isabelle Taschwer , Martin Volesak

{"title":"The EURAMET.RI(II)-S9 interlaboratory comparison of the radionuclide calibrators","authors":"Arūnas Gudelis , Andrei Antohe , Eszter Bodnár , Robert Bretner-Messler , Pavel Dryák , Andrej Javorník , Kristyna Kohoutova , Petr Kovář , Matej Krivošík , Ioana Lalau , Patrick Lobner , Liviu-Cristian Mihailescu , Anita Peka , Miguel Roteta , Jan Rusnák , Vladimír Sochor , Jana Sochorová , Jiri Šuráň , Laszlo Szücs , Isabelle Taschwer , Martin Volesak","doi":"10.1016/j.apradiso.2026.112434","DOIUrl":"10.1016/j.apradiso.2026.112434","url":null,"abstract":"<div><div>At EURAMET TC-IR meeting in Madrid, March 1, 2023, it was proposed to organize a comparison on radionuclide calibrators to measure the activity of short-lived radionuclides used in nuclear medicine: F-18, Ga-67, Y-90, Tc-99 m, In-111, I-123, I-131, Sm-153, Lu-177 and Tl-201. The technical protocol was elaborated in June 2023 and after comments received from CCRI(II) and KCWG (II) it was finally approved in August 2023.</div><div>The comparison took place in Prague at CMI headquarters 11–15 September 2023.</div><div>Original solutions provided by manufacturers were used to prepare working solutions with which 2 mL ampoules, 5 mL ampoules, P6 vials, and Schott 10 R type1+ vials were filled. For control measurements by the gamma-ray spectrometry with a HPGe detector, samples were prepared using the same solution. For radionuclides Ga-67, Sm-153, and Lu-177, special solutions were produced, and 3.6 mL ampoules required by SIR were filled. Activity values were determined gravimetrically from activity concentration values measured by the primary method.</div><div>The comparison reference values were determined from activity measurement results of a selection of participants by using the Power Moderated Mean approach.</div></div>","PeriodicalId":8096,"journal":{"name":"Applied Radiation and Isotopes","volume":"230 ","pages":"Article 112434"},"PeriodicalIF":1.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145976379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A compact Rn-220 reference chamber with constant temperature and humidity 一个紧凑的恒定温度和湿度的Rn-220参考室。

IF 1.8 3区工程技术

Applied Radiation and Isotopes Pub Date : 2026-04-01 Epub Date: 2026-01-31 DOI: 10.1016/j.apradiso.2026.112477

Hongbo Xu, Zhongkai Fan, Ruomei Xie, Xinyue Yang, Shicheng Luo, Chenxi Zu, Feng Xiao, Xianfa Mao, Hongzhi Yuan, Yanliang Tan

{"title":"A compact Rn-220 reference chamber with constant temperature and humidity","authors":"Hongbo Xu, Zhongkai Fan, Ruomei Xie, Xinyue Yang, Shicheng Luo, Chenxi Zu, Feng Xiao, Xianfa Mao, Hongzhi Yuan, Yanliang Tan","doi":"10.1016/j.apradiso.2026.112477","DOIUrl":"10.1016/j.apradiso.2026.112477","url":null,"abstract":"<div><div>A novel compact Rn-220 reference chamber with stable temperature and humidity control was successfully designed and developed to support radiation-related experimental studies. The device consists of a 200 L cylindrical sealed chamber made of 304 stainless-steel, providing excellent airtightness and corrosion resistance. Concentration levels inside the chamber were tested using both 36 and 9 thorium doped lantern mantles as radioactive sources. A tray containing iodine-free supersaturated salt solution was placed at the bottom to regulate humidity, while a fan positioned at the top ensured adequate air mixing at a circulation rate of 12 m<sup>3</sup> min<sup>−1</sup>. Experimental results indicated that the system could maintain a relative humidity of 73 ± 3%, while the temperature was stabilized at 31 ± 1 °C by an external air-conditioning system. Multi-point monitoring using a RAD7 radon detector indicated that the overall Rn-220 concentrations reached <strong>166,700 ± 35,300 Bq m<sup>−3</sup></strong> and 47,700 ± 12,400 Bq m<sup>−3</sup>. The uncertainty of the 9 thorium doped lantern mantles configuration was 26.0%. Given the small vertical concentration difference across three heights with 9 thorium doped lantern mantles, this configuration was selected as the reference Rn-220 source. This compact Rn-220 reference chamber has potential applicability in instrument calibration and radiation-related studies.</div></div>","PeriodicalId":8096,"journal":{"name":"Applied Radiation and Isotopes","volume":"230 ","pages":"Article 112477"},"PeriodicalIF":1.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146123417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0