B. Berkani , A. Kahoul , J.M. Sampaio , S. Daoudi , J.P. Marques , F. Parente , A. Hamidani , S. Croft , A. Favalli , Y. Kasri , A. Zidi , K. Amari
{"title":"Semi-empirical calculation of K to Li sub-shell, K to L, and M shell vacancy transfer probability for elements in the atomic range 16 ≤ Z ≤ 92","authors":"B. Berkani , A. Kahoul , J.M. Sampaio , S. Daoudi , J.P. Marques , F. Parente , A. Hamidani , S. Croft , A. Favalli , Y. Kasri , A. Zidi , K. Amari","doi":"10.1016/j.nimb.2025.165689","DOIUrl":"10.1016/j.nimb.2025.165689","url":null,"abstract":"<div><div>This study introduces novel semi-empirical calculations to obtain vacancy transfer probabilities from the K shell for elements in the atomic range 16 ≤ Z ≤ 92. These calculations are derived from experimental data extracted from the scientific literature and previously tabulated by the research team. The results are compared with theoretical, semi-empirical, and experimental values reported in the literature, demonstrating a good agreement between the obtained findings and those of previous works.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165689"},"PeriodicalIF":1.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H.O. Tekin , Ghada ALMisned , G. Kilic , Gulfem Susoy , Wiam Elshami , Duygu Sen Baykal , Bashar Issa
{"title":"Four-step evaluation and systematic assessment of various containers for radioactive source transportation purposes","authors":"H.O. Tekin , Ghada ALMisned , G. Kilic , Gulfem Susoy , Wiam Elshami , Duygu Sen Baykal , Bashar Issa","doi":"10.1016/j.nimb.2025.165683","DOIUrl":"10.1016/j.nimb.2025.165683","url":null,"abstract":"<div><div>The multifunctional La<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub>-Nb<sub>2</sub>O<sub>5</sub>-B<sub>2</sub>O<sub>3</sub> glass system was evaluated for its gamma-ray and neutron shielding capabilities, focusing on its potential use as transparent containers for radioactive isotope transport. Critical shielding parameters, including linear attenuation coefficients, half-value layers, equivalent atomic numbers, and transmission factors, were analyzed using Monte Carlo simulations and other computational methods. Among the investigated samples, the 16Nb2B glass exhibited exceptional performance, with an LAC of 7.0613 cm<sup>−1</sup> at 0.01 MeV, outperforming the 40La14B glass by 29 %. Its HVL was as low as 0.003 cm at 0.015 MeV and 1.725 cm at 0.662 MeV, marking a considerable reduction compared to steel-magnetite concrete. Moreover, the deposited energy in the air surrounding 16Nb2B was 1.18 × 10<sup>-4</sup> MeV/g, reflecting reductions of 59.9 % and 56.1 % compared to Boron Carbide and cement-bitumen mixtures, respectively. The TF values for 16Nb2B consistently showed superior attenuation, with reductions of 6.6 % at 3.0 cm thickness and 0.662 MeV compared to steel-magnetite concrete. It can be concluded that the 16Nb2B glass not only provides outstanding optical transparency properties but also provides better radiation shielding properties, making it a promising candidate for applications in medical imaging, nuclear facilities, and radioactive material transport.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165683"},"PeriodicalIF":1.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Influence of irradiation on the evolution of radiation defects in nanocrystalline FCC metals: The case of Ni","authors":"Yu.S. Bilogorodskyy , A.S. Shirinyan , O.M. Krit","doi":"10.1016/j.nimb.2025.165674","DOIUrl":"10.1016/j.nimb.2025.165674","url":null,"abstract":"<div><div>Radiation damage in materials is accompanied by generation of defects. One promising approach for describing the evolution of defects involves using chemical rate theory. We aim to study the influence of irradiation and external conditions on the evolution of radiation point defects in nanocrystalline fcc metals. We used nanocrystalline nickel for which we know the parameters as a model fcc metal. The approach can be applied to nanoparticles as well. By solving the non-stationary equations, possible dependencies of defect concentrations on irradiation time, dose, temperature and nanoparticle size have been established. It was found that there are situations where the defect concentration increases with increasing grain (or particle) size, does not depend on size, is nonmonotonic with maximum, or decreases with an inverse dependence on size. This variability is ensured by the intensity of defect interactions at external boundaries, recombinations inside the grain (particle), temperature, time (dose), and irradiation regimes.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165674"},"PeriodicalIF":1.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Takács , F. Ditrói , Z. Szűcs , M. Aikawa , H. Haba , S. Usuda , S. Ebata
{"title":"Measurement of activation cross section of alpha-particle induced nuclear reactions on dysprosium","authors":"S. Takács , F. Ditrói , Z. Szűcs , M. Aikawa , H. Haba , S. Usuda , S. Ebata","doi":"10.1016/j.nimb.2025.165670","DOIUrl":"10.1016/j.nimb.2025.165670","url":null,"abstract":"<div><div>Activation cross sections were determined for reactions induced by a 50 MeV alpha-particle beam on natural dysprosium. The well-established stacked target technique and activation method were applied followed by high-resolution γ-ray spectrometry to deduce elemental reaction cross sections. As experimental data are very incomplete the experiment aimed to determine activation cross sections for formation of longer-lived reaction products. Activation cross sections were obtained for the formation of <sup>160,161,163</sup>Er, <sup>166g,167</sup>Ho, <sup>157,159</sup>Dy and <sup>156g,160</sup>Tb. Results were compared with the available experimental data and prediction of TALYS model calculation. Some of the reaction cross section data were measured for the first time.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165670"},"PeriodicalIF":1.4,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bulat Bakirov , Sergey E. Kichanov , Denis P. Kozlenko
{"title":"Convolutional neural networks for reconstruction of neutron tomography from incomplete data","authors":"Bulat Bakirov , Sergey E. Kichanov , Denis P. Kozlenko","doi":"10.1016/j.nimb.2025.165682","DOIUrl":"10.1016/j.nimb.2025.165682","url":null,"abstract":"<div><div>To reduce the number of image projections in neutron tomography experiments, tomography reconstruction algorithms are used from an incomplete and limited number of neutron projections. The possibilities of a reconstruction algorithm based on convolutional neural networks are presented. It was found that only 72 projections are required for trained convolutional neural network for a qualitative reconstruction comparable to that from a complete dataset. Variations in the quality of the tomography reconstruction due to changes in training data and the number of input projections are considered. Examples of using convolutional neural networks for neutron tomography reconstructions of real experimental data includes the results of studies on archaeological metal materials from the “Volna-1″ archaeological site.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165682"},"PeriodicalIF":1.4,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Different widths of resonant lines in the Mössbuaer spectrum as the result of multidimensional Gaussian distribution","authors":"Sergey Yaroslavtsev","doi":"10.1016/j.nimb.2025.165669","DOIUrl":"10.1016/j.nimb.2025.165669","url":null,"abstract":"<div><div>In the application of Mössbauer spectroscopy to complex materials distributions of hyperfine parameters are regularly utilized in data processing. Distributions are required due to existence of a huge number of different local positions of Fe ions with varying nearest environment. Thus, the Mössbauer spectrum should contain a lot of different corresponding subspectra. It often leads to a problematic independent determination of individual sites. In simplest case it could lead just to an increase of the width of resonant lines due to normal distribution of hyperfine parameters. However, they could appear to be correlated. In such case the shape of the spectrum will change, requiring more complex model to describe it. In this work such a model was developed and compared to already existed approaches.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165669"},"PeriodicalIF":1.4,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Study of the energy spectrum of alpha particles in an experiment on irradiation of a boron target with a proton beam at the Prometheus accelerator","authors":"A.S. Rusetskii, M.A. Negodaev, A.V. Oginov, V.A. Ryabov, K.V. Shpakov, A.E. Shemyakov, I.N. Zavestovskaya","doi":"10.1016/j.nimb.2025.165651","DOIUrl":"10.1016/j.nimb.2025.165651","url":null,"abstract":"<div><div>The energy spectrum of alpha particles from the nuclear reaction p + <sup>11</sup>B <span><math><mrow><mo>→</mo><mn>3</mn><mi>α</mi></mrow></math></span> was studied using the beam of the injector of the proton synchrotron of the Prometheus proton therapy complex. The reaction products (alpha particles) were recorded using a CR-39 track detector. The detectors were calibrated using a <sup>241</sup>Am radioactive source. It was determined that mainly alpha particles emitted from the boron target have energies from 3 to 5.5 MeV. In this case, a significant part of the alpha particles emitted from the depths of the target have significantly lower energies compared to the calculated ones due to ionization losses. Measuring the energy spectrum of alpha particles from targets containing boron is of great scientific and practical interest for identifying the mechanisms of boron–proton capture therapy and determining the additional contribution to the therapeutic effect of proton irradiation.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165651"},"PeriodicalIF":1.4,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Neutron depth profiling extended with PIXE element analysis","authors":"Vasil Hlinka, Ibrahim Oksuz, R. Gregory Downing","doi":"10.1016/j.nimb.2025.165672","DOIUrl":"10.1016/j.nimb.2025.165672","url":null,"abstract":"<div><div>In a paper titled “NIXE: Neutron Depth Profiling coupled with Particle Induced X-ray Emission,” Albarqi, et al. [1] proposed a modification of the Neutron Depth Profiling (NDP) technique to use the charged particle induced X-ray (PIXE) emission generated from the energetic ions produced during nuclear reactions of the NDP process to provide additional information about the depth profile of elements near the surface of a material. This paper applies a more comprehensive analysis of the concept using the Geant4 Monte Carlo code. The results of this analysis show that the approach may be possible and produces benefits such as depth concentration for elements beyond traditional NDP. However, suppression of typical low-energy background noise is critical and would limit which NDP facilities can perform the NIXE technique. The data in this paper can inform the planning of such experiments.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165672"},"PeriodicalIF":1.4,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tian Xing , Shuhuan Liu , Xuan Wang , Mathew Adefusika Adekoya , Chao Wang , Junye Zhou , Wei Chen
{"title":"Coupled radiation effects of swift heavy ions and strong electromagnetic pulses on a SiGe HBT: A TCAD-based simulation","authors":"Tian Xing , Shuhuan Liu , Xuan Wang , Mathew Adefusika Adekoya , Chao Wang , Junye Zhou , Wei Chen","doi":"10.1016/j.nimb.2025.165673","DOIUrl":"10.1016/j.nimb.2025.165673","url":null,"abstract":"<div><div>Silicon germanium (SiGe) heterogeneous bipolar transistors (HBTs) in radio-frequency front-end low-noise amplifiers may confront a joint attack from swift heavy ions (SHIs) and strong electromagnetic pluses (EMPs) in complex nuclear and electromagnetic radiation circumstances. Herein, the coupled radiation effects of SHIs and strong EMPs on a SiGe HBT were investigated based on TCAD simulations. The results showed that the simultaneous impact originating from the SHIs and the EMPs could render the SiGe HBT more vulnerable than the impact of either factor alone. As the SHIs and the EMPs acted on the SiGe HBT simultaneously, the thermal effects of the base region were predominant and could finally cause damage to the device. The electron-hole pairs injected by the SHIs increased the lattice temperature and aggravated the thermal burnout dominated by the EMPs. This work may facilitate research on radiation effects of SiGe HBTs in the complex nuclear and electromagnetic radiation environment.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165673"},"PeriodicalIF":1.4,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analytical investigation of biological response of different tissues to proton beam radiation using phenomenological and biophysical models","authors":"H. Taghipour , S.M. Motevalli , P. Taherparvar","doi":"10.1016/j.nimb.2025.165667","DOIUrl":"10.1016/j.nimb.2025.165667","url":null,"abstract":"<div><div>In particle radiation therapy, the relative biological effectiveness (RBE) is used to evaluate the biological response of human tissues exposed to radiation. The microdosimetric approach may well determine the distribution of RBE-weighted doses of charged particle beams based on dose-mean specific energy with constant innovations and modifications. In this study, the results obtained from the biophysical model (such as the microdosimetric kinetic model (MKM)) with the determined domain size (r<sub>d</sub>) have been compared to phenomenological models (such as the Wedenberg, Carabe, and McNamara models) which do not consider variable domain size. The α (linear term of the cell survival curve) and D<sub>10</sub> (dose value at 10% cell survival fraction) quantities variations as a function of particle linear energy transfer (LET) have been analyzed using different RBE models based on animal cell lines, and human cancer cell lines such as human salivary gland (HSG) and glioma, together with the corresponding experimental data. Besides, the impact of variations in prescribed biological dose on the spread-out Bragg peaks (SOBP) calculated by applying the MKM using various cell lines is indicated. The findings show that the D<sub>10</sub> and α parameters estimated applying the <span><math><mrow><msubsup><mi>Z</mi><mrow><mn>1</mn><mi>D</mi></mrow><mrow><mo>∗</mo></mrow></msubsup></mrow></math></span>-based MKM adapt better to the published experimental datasets than those applying the LET-based phenomenological models. The MKM calculations based on microdosimetric specific energy at the treatment planning system (TPS) can be well used to predict the physical and biological properties of heavy-ion beams.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165667"},"PeriodicalIF":1.4,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143534636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}