Nuclear Analysis最新文献_第2页

Dose distribution comparison using image registration principles 基于图像配准原理的剂量分布比较

Nuclear Analysis Pub Date : 2025-03-24 DOI: 10.1016/j.nucana.2025.100170

Meryeme Bellahsaouia , Ibtissam Zidouh , Ouadie Kabach , Wafae Chfeq , Assia Arctout , Taher Elkhoukhi , Elmahjoub Chakir

{"title":"Dose distribution comparison using image registration principles","authors":"Meryeme Bellahsaouia , Ibtissam Zidouh , Ouadie Kabach , Wafae Chfeq , Assia Arctout , Taher Elkhoukhi , Elmahjoub Chakir","doi":"10.1016/j.nucana.2025.100170","DOIUrl":"10.1016/j.nucana.2025.100170","url":null,"abstract":"<div><div>Radiotherapy relies on accurate dose distribution comparison methods, but current approaches have limitations. This study introduces a novel algorithm based on image registration principles to address these limitations. The algorithm uses a transformation matrix derived from image registration to align an evaluated dose distribution with a reference distribution. This transformation employs multiple steps: detecting keypoints, constructing descriptors, matching keypoints, and estimating an affine transformation matrix. The transformed distribution is then directly comparable to the reference through linear least squares regression. Validation on 174 dose distribution pairs demonstrated robust performance, with bias and precision within clinically acceptable limits. Linearity assessments confirmed consistent behavior across a wide range of dose intensities. Comparisons with gamma analysis showed substantial agreement (Cohen's Kappa: 0.77), while additional metrics highlighted its clinical suitability: precision (0.98), recall (0.95), accuracy (0.94), specificity (0.86), and F1-score (0.96). These results establish the algorithm as a promising complement to gamma analysis, with strong potential for clinical integration.</div></div>","PeriodicalId":100965,"journal":{"name":"Nuclear Analysis","volume":"4 2","pages":"Article 100170"},"PeriodicalIF":0.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elastic scattering of Lithium induced nuclear reactions 锂诱导核反应的弹性散射

Nuclear Analysis Pub Date : 2025-03-01 DOI: 10.1016/j.nucana.2025.100153

S. Madhu , Reddi Rani L. , H.C. Manjunatha , N. Sowmya , H.S. Anushree , Krishnakanth E.

{"title":"Elastic scattering of Lithium induced nuclear reactions","authors":"S. Madhu , Reddi Rani L. , H.C. Manjunatha , N. Sowmya , H.S. Anushree , Krishnakanth E.","doi":"10.1016/j.nucana.2025.100153","DOIUrl":"10.1016/j.nucana.2025.100153","url":null,"abstract":"<div><div>A total of 347 experimentally accessible lithium-induced fusion reactions at various energies were analyzed. The study utilized real nuclear potential and volume imaginary potential within the optical model framework, with elastic cross-sections calculated using the FRESCO code. The value derived from the optical model agrees well with existing results at various scattering angles. The study refines existing empirical relations for elastic scattering by improving predictive accuracy and expanding their applicability to under explored reaction channels. Compared to previous models, our relations achieve better alignment with experimental data for lithium-induced reactions, particularly at higher energies. The standard deviation derived from the empirical relationship with that of experimental data is observed to be smaller. Elastic scattering cross-sections of <span><math><msup><mrow></mrow><mrow><mn>6</mn><mo>,</mo><mn>7</mn></mrow></msup></math></span>Li-induced fusion reactions are function of the Coulomb-interaction parameter and center of mass energy. As a result, the current methodology may be used to forecast elastic scattering cross-sections of <span><math><msup><mrow></mrow><mrow><mn>6</mn><mo>,</mo><mn>7</mn></mrow></msup></math></span>Li-induced fusion reactions in unknown isotopes of targets ranging from Li to Bi.</div></div>","PeriodicalId":100965,"journal":{"name":"Nuclear Analysis","volume":"4 1","pages":"Article 100153"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Use GIS technical to map natural radioactivity in soil samples for the University of Kufa, Iraq 利用GIS技术绘制伊拉克库法大学土壤样品中的天然放射性

Nuclear Analysis Pub Date : 2025-03-01 DOI: 10.1016/j.nucana.2024.100139

Abrrar Abbas Ibrahim , Abdalsattar K. Hashim , Ali Abid Abojassim

{"title":"Use GIS technical to map natural radioactivity in soil samples for the University of Kufa, Iraq","authors":"Abrrar Abbas Ibrahim , Abdalsattar K. Hashim , Ali Abid Abojassim","doi":"10.1016/j.nucana.2024.100139","DOIUrl":"10.1016/j.nucana.2024.100139","url":null,"abstract":"<div><div>GIS \"Geographic Information System\" technology was used to map the specific activity (S.A.) of primordial radionuclides <sup>238</sup>U, <sup>232</sup>Th, and <sup>40</sup>K in selected soil samples for twelve locations at the University of Kufa, Iraq. S.A. values were determined using gamma spectrometry type NaI(Tl) with volume “3 × 3”. Also, the values of radiological parameters such as Ra<sub>eq</sub> \"radium equivalent\", H<sub>ex</sub> \"external hazard index\", I<sub>γr</sub> \"representative gamma risk index\", D<sub>r</sub> \"Absorbed Dose rate\", AEDE<sub>outdoor</sub> \"Annual Effective Dose Equivalent in outdoor\", and ELCR \"Excess Lifetime Cancer Risk\" were determined. The average value of S.A. for <sup>238</sup>U, <sup>232</sup>Th, and <sup>40</sup>K was 10.35 ± 0.9 Bq/kg, 7.31 ± 1.8 Bq/kg, and 256.19 ± 55.7 Bq/kg, respectively. While, the average values of Ra<sub>eq</sub> (Bq/kg), H<sub>ex,</sub> I<sub>γr</sub>, D<sub>r</sub> (nGy/h), AEDE<sub>outdoor</sub> (mSv/y), and ELCR were 48.00, 0.130, 0.373, 23.70, 0.029, and 0.102 × 10<sup>−3</sup>, respectively. The results of S.A. and each radiological parameter of the study area locations were low according to acceptable level reports by UNSCEAR, ICRP, and OCDE. Therefore, it can be concluded that the soil samples of the University of Kufa were safe.</div></div>","PeriodicalId":100965,"journal":{"name":"Nuclear Analysis","volume":"4 1","pages":"Article 100139"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Measurement of natural radioactivity and assessment of radiological hazard indices in soil from Tirunelveli District, Tamil Nadu, India with statistical approach 印度泰米尔纳德邦Tirunelveli地区土壤天然放射性的测量和放射性危害指数的统计方法评估

Nuclear Analysis Pub Date : 2025-03-01 DOI: 10.1016/j.nucana.2025.100156

T. Krishnamoorthi , Satyanarayan Bramha , S. Chandrasekaran , R. Ravichandaran , S. Sivakumar , R. Ravisankar

{"title":"Measurement of natural radioactivity and assessment of radiological hazard indices in soil from Tirunelveli District, Tamil Nadu, India with statistical approach","authors":"T. Krishnamoorthi , Satyanarayan Bramha , S. Chandrasekaran , R. Ravichandaran , S. Sivakumar , R. Ravisankar","doi":"10.1016/j.nucana.2025.100156","DOIUrl":"10.1016/j.nucana.2025.100156","url":null,"abstract":"<div><div>The activity concentrations of naturally occurring radionuclides <sup>238</sup>U, <sup>232</sup>Th, and <sup>40</sup>K were determined in 31 soil samples collected from the Tirunelveli District of Tamil Nadu using grid sampling method. Gamma-ray spectrometry was applied using NaI(Tl) detector and a PC-based MCA. The mean radioactivity concentrations of <sup>238</sup>U, <sup>232</sup>Th, and <sup>40</sup>K were found to be 12.98 Bq.kg<sup>−1,</sup> 162.89 Bq.kg<sup>−1</sup> and 453.04 Bq.kg<sup>−1</sup>, respectively. The spatial map of the radionuclides was drawn and is discussed. The radiological hazards associated with soils were determined using radium equivalent activity (Ra<sub>eq</sub>), annual gonadal dose equivalent (AGDE), activity utilization index (AUI), internal hazard index (H<sub>in</sub>) external hazard index (H<sub>ex</sub>) and gamma representative level index (I<sub>γ</sub>), were calculated. Results were discussed and compared with the internationally recommended approved values. Statistical method was used to determine the natural associations between samples and variables. This work may provide baseline data for future soil radioactive environmental monitoring and the results of the study can serve as a reference for future radiological assessments.</div></div>","PeriodicalId":100965,"journal":{"name":"Nuclear Analysis","volume":"4 1","pages":"Article 100156"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Natural radioactivity assessments and radiological hazards in agricultural soils around mining activities in Karibib, Namibia 纳米比亚卡里比卜采矿活动周围农业土壤的自然放射性评估和放射性危害

Nuclear Analysis Pub Date : 2025-03-01 DOI: 10.1016/j.nucana.2025.100155

Sylvanus Ameh Onjefu , Biere Peter Ebibuloami , Caspah Kamunda , Markus Hitila , Marius Kudumo Mutorwa , Jeya Kudi Kennedy , Euodia Hess , Damian C. Onwudiwe

{"title":"Natural radioactivity assessments and radiological hazards in agricultural soils around mining activities in Karibib, Namibia","authors":"Sylvanus Ameh Onjefu , Biere Peter Ebibuloami , Caspah Kamunda , Markus Hitila , Marius Kudumo Mutorwa , Jeya Kudi Kennedy , Euodia Hess , Damian C. Onwudiwe","doi":"10.1016/j.nucana.2025.100155","DOIUrl":"10.1016/j.nucana.2025.100155","url":null,"abstract":"<div><div>A total of 17 soil samples were randomly collected from agricultural farms around mining areas from Karibib, Erongo region, Namibia. The samples were analyzed for natural radioactivity using a high purity germanium (HPGe) detector. The average activity concentrations of <sup>226</sup>Ra, <sup>232</sup>Th and <sup>40</sup>K were 80.80, 73.60, and 493.96 Bq.kg <sup>– 1</sup> respectively. The radiological assessments were calculated in terms of radium equivalent activity (224.09 Bq.kg <sup>– 1</sup>), absorbed dose rate (102.39 nGy h-<sup>1</sup>), annual effective dose equivalent (indoor and outdoor) (1.26 mSv y <sup>– 1</sup> and 5.02 mSv y <sup>– 1</sup>) and the internal and external hazard indices (0.61) and (0.82) respectively. The average values of <sup>226</sup>Ra, <sup>232</sup>Th and <sup>40</sup>K were higher than the world average values as well as those of the radiological parameters of absorbed dose rate and annual effective dose equivalent. The average values of radium equivalent activity, and the indices radiological hazards were below the internationally acceptable limits.</div></div>","PeriodicalId":100965,"journal":{"name":"Nuclear Analysis","volume":"4 1","pages":"Article 100155"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential health risk assessment of sediment and water in some Niger Delta areas of Nigeria 尼日利亚一些尼日尔三角洲地区沉积物和水的潜在健康风险评估

Nuclear Analysis Pub Date : 2025-03-01 DOI: 10.1016/j.nucana.2025.100159

Damaris Osiga-Aibangbee, Omamoke O.E. Enaroseha, Godwin K. Agbajor

{"title":"Potential health risk assessment of sediment and water in some Niger Delta areas of Nigeria","authors":"Damaris Osiga-Aibangbee, Omamoke O.E. Enaroseha, Godwin K. Agbajor","doi":"10.1016/j.nucana.2025.100159","DOIUrl":"10.1016/j.nucana.2025.100159","url":null,"abstract":"<div><div>The Niger Delta areas of Nigeria suffer substantial environmental issues owing to radionuclides pollution in sediment and water. These places are vital for local residents, supplying drinking water, food, and livelihoods. However, exposure to radionuclides causes health concerns to both people and aquatic species. This research examines health risk in sediment and water from some chosen locations in Delta State, Nigeria. Twelve (12) sediment samples and Twelve (12) water samples were randomly chosen and gathered from four communities at a depth of 10 cm, with each location giving 200 g of samples spaced of minimum of 50 m apart. Analysis was done at the CERD - IFE utilizing Gamma Ray Spectrometry, which contained a thallium-activated 16″x16″ Sodium iodide [NaI(Tl)] detector to quantify the activity concentrations of <sup>238</sup>U, <sup>232</sup>Th, and <sup>40</sup>K. The analysis indicated that activity concentrations in sediment samples for <sup>40</sup>K, <sup>238</sup>U, and, <sup>232</sup>Th varied from 294.29 ± 11.98 to 774.4 ± 10.92, 3.91 ± 0.06 to 14.13 ± 0.1, and 1.32 ± 0.05 to 5.29 ± 0.10 Bq/kg, respectively. In water samples, activity concentrations for <sup>40</sup>K, <sup>238</sup>U, and, <sup>232</sup>Th ranged from 232.32 ± 5.08 to 780.72 ± 9.31, 5.34 ± 0.06 to 11.29 ± 0.04, and 0.93 ± 0.04 to 3.07 ± 0.08 Bq/l, respectively. Base on health risk assessment, radium equivalent (Ra<sub>eq</sub>) values ranged from 242.34 to 556.41 Bq/kg, with a mean value of 396.21 Bq/kg and was found to exceed the international standard of 370 Bq/kg. The discrepancies are due to geological differences and the existence of radioactive thorium materials, variable behavior and metabolism. Although radionuclide hazard indices suggest that the communities are safe from radiation, the long-term impacts of low-dose radiation exposure might pose health problems, hence frequent monitoring of radioactive levels in sediments and water is advised.</div></div>","PeriodicalId":100965,"journal":{"name":"Nuclear Analysis","volume":"4 1","pages":"Article 100159"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemical separation of uranium-233 from neutron-irradiated 232ThO2 targets using a dual-column technique 用双柱技术从中子辐照的232ThO2靶中分离铀-233

Nuclear Analysis Pub Date : 2025-03-01 DOI: 10.1016/j.nucana.2025.100157

Yu Sun, Muxiao Wu, Jijun Guo, Qingchuan Lin, Jun Tu, Xiang Xie

引用次数: 0

Alpha emitter in samples of antibiotics commonly used in pediatric age groups 儿童年龄组常用抗生素样本中的α发射器

Nuclear Analysis Pub Date : 2025-03-01 DOI: 10.1016/j.nucana.2025.100154

Ahmed Abdul Hadi Mohsen , Ali Saeed jassim , Ali Abid Abojassim , Abdulhussein A. Alkufi

{"title":"Alpha emitter in samples of antibiotics commonly used in pediatric age groups","authors":"Ahmed Abdul Hadi Mohsen , Ali Saeed jassim , Ali Abid Abojassim , Abdulhussein A. Alkufi","doi":"10.1016/j.nucana.2025.100154","DOIUrl":"10.1016/j.nucana.2025.100154","url":null,"abstract":"<div><div>This investigation is aimed to assess the level of <sup>222</sup>Rn (radon-222), <sup>226</sup>Ra (radium-226), <sup>238</sup>U (uranium-238), <sup>218</sup>Po (Polonium-218), <sup>214</sup>Po (Polonium-214) in antibiotics that are commonly utilized for pediatrics in Al-Najaf, governorate. Alpha emitters were measured using a CN-85 detector. Additionally, “Annual Average Internal Effective Dose” (AAIED) and “Risk of an Excess Cancer Fatality Per Million Person” (RECFPMP) resulting from <sup>222</sup>Rn, <sup>226</sup>Ra, and <sup>238</sup>U in samples of antibiotics were assessed. The average <sup>222</sup>Rn, <sup>226</sup>Ra, and <sup>238</sup>U values were found to be 2.840, 0.173, and 2.830 Bq/kg, respectively. Moreover, the average AAIED and RECFPMP values which associated with alpha emitters assessment in all medical plant samples were 55.526 nSv/y and 0.214 × 10<sup>−6</sup>, respectively. Finally, the average levels of <sup>218</sup>Po and <sup>214</sup>Po were recorded as 15.926 and 6.716 Bq/m<sup>3</sup>, respectively. After conducting a thorough examination for the resulted data and comparing them with the globally accepted and permissible (<sup>218</sup>Po, <sup>214</sup>Po) limits, it was found that the radiation levels in samples of selected antibiotic medications prescribed for pediatrics were entirely natural and fall within the recommended range. Consequently, there is no cause for concern regarding the radioactive component of these drugs and their safe consumption by children.</div></div>","PeriodicalId":100965,"journal":{"name":"Nuclear Analysis","volume":"4 1","pages":"Article 100154"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating the level of 226Ra, 232Th and 40K in different building materials 评价不同建筑材料中226Ra、232Th和40K的含量

Nuclear Analysis Pub Date : 2025-03-01 DOI: 10.1016/j.nucana.2025.100158

Aqeel A. Elewee , Mohammed S. Alsaffar , Shatha F. Alhous , Murtadha Sh Aswood

{"title":"Evaluating the level of 226Ra, 232Th and 40K in different building materials","authors":"Aqeel A. Elewee , Mohammed S. Alsaffar , Shatha F. Alhous , Murtadha Sh Aswood","doi":"10.1016/j.nucana.2025.100158","DOIUrl":"10.1016/j.nucana.2025.100158","url":null,"abstract":"<div><div>This study evaluates the levels of <sup>226</sup>Ra, <sup>232</sup>Th, and <sup>40</sup>K in various building materials, including brick, cement, sand, gravel, and gypsum, sourced from Al-Shatra in the Dhi-Qar Governorate of Iraq. Measurements were conducted using a NaI (Tl) detector, which is an effective tool for gamma-ray spectrometry. The average activity concentrations measured were 19.70 ± 6.7 Bqkg<sup>−1</sup> for <sup>226</sup>Ra, 20.14 ± 3.3 Bqkg<sup>−1</sup> for <sup>232</sup>Th, and 232.24 ± 91 Bqkg<sup>−1</sup> for <sup>40</sup>K. The calculated mean radium equivalent activity was found to be 66.63 Bqkg<sup>−1</sup>, which is below the internationally accepted threshold of 370 Bqkg<sup>−1</sup>. Both the internal hazard index (Hin) and the external hazard index (Hex) were determined to be less than unity (<1), in accordance with the safe levels recognized by UNSCEAR. Additionally, the average values for the absorbed dose rate (nGyh<sup>−1</sup>), indoor annual effective dose (mSvy<sup>−1</sup>), outdoor annual effective dose (mSvy<sup>−1</sup>), and gamma-ray exposure rate (μRh<sup>−1</sup>) were estimated to be 59.09, 0.29, 0.07, and 138.83, respectively. These parameters are within acceptable limits when compared to the world-permitted values. Therefore, all types of building materials assessed in this study are considered safe and do not pose a significant threat to public health.</div></div>","PeriodicalId":100965,"journal":{"name":"Nuclear Analysis","volume":"4 1","pages":"Article 100158"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of radiation shielding properties for some concrete mixtures against photon and neutron radiations 某些混凝土混合料对光子和中子辐射屏蔽性能的评价

Nuclear Analysis Pub Date : 2025-03-01 DOI: 10.1016/j.nucana.2025.100152

Brahim EL Azzaoui , Ouadie Kabach , Younes EL Abbari , Mohamed Youssef Messous , Khalid Nabaoui , Rabie Outayad , Yassine EL Lkhadiri , El mahjoub ChAKIR , El Mehdi Alibrahmi

{"title":"Assessment of radiation shielding properties for some concrete mixtures against photon and neutron radiations","authors":"Brahim EL Azzaoui , Ouadie Kabach , Younes EL Abbari , Mohamed Youssef Messous , Khalid Nabaoui , Rabie Outayad , Yassine EL Lkhadiri , El mahjoub ChAKIR , El Mehdi Alibrahmi","doi":"10.1016/j.nucana.2025.100152","DOIUrl":"10.1016/j.nucana.2025.100152","url":null,"abstract":"<div><div>This study evaluates fifteen concrete formulations, including standard and hybrid types such as Barite, Iron-Limonite, and Luminite-Colemanite-Barite, to determine their effectiveness in shielding against photon rays and neutrons. Using computational tools like MCNP, Phy-X, and XCOM, key shielding parameters were analyzed, including the Mass Attenuation Coefficient, Half-Value Layer, Mean Free Path, Fast Neutron Removal Cross Section, and Neutron Transmittance. In photon shielding, Iron-Portland concrete demonstrated superior performance, achieving the lowest Half-Value Layer (HVL) of 2.244 cm at 1.33 MeV, which is 42 % better than Ordinary concrete and 57 % better than Barite concrete. Iron-Limonite also showed strong photon attenuation with a Mean Free Path (MFP) of 3.23 cm at 1.33 MeV. For neutron shielding, Iron-Limonite and Ferro-phosphorus concrete recorded the highest Fast Neutron Removal Cross Section (FNRCS) values, reaching up to 0.146 cm⁻<sup>1</sup>, indicating their strong capability to attenuate fast neutrons. Additionally, hybrid concretes like Luminite-Colemanite-Barite provided balanced protection against both photon and neutron radiation. This study highlights the effectiveness of high-density concretes in radiation shielding and underscores the alignment between deterministic and stochastic computational tools used, reinforcing their applicability in enhancing radiation safety.</div></div>","PeriodicalId":100965,"journal":{"name":"Nuclear Analysis","volume":"4 1","pages":"Article 100152"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0