Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms最新文献_第3页

VHEE facilities in Europe with the potential for FLASH dose irradiation: Conspectus and dose rate parameterisation 欧洲具有潜在闪速剂量照射的VHEE设施：透视图和剂量率参数化

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-05-17 DOI: 10.1016/j.nimb.2025.165752

Kristina L. Small , Deepa Angal-Kalinin , James K. Jones , Roger M. Jones

{"title":"VHEE facilities in Europe with the potential for FLASH dose irradiation: Conspectus and dose rate parameterisation","authors":"Kristina L. Small , Deepa Angal-Kalinin , James K. Jones , Roger M. Jones","doi":"10.1016/j.nimb.2025.165752","DOIUrl":"10.1016/j.nimb.2025.165752","url":null,"abstract":"<div><div>Very High Energy Electrons (VHEE) are gaining significant interest in combination with FLASH radiotherapy as a potential cancer treatment with potential reduction in side effects. This study reviews European VHEE facilities, their FLASH capabilities and applications to radiobiological research, with study objectives:<ul><li><span>1.</span><span><div>Determining FLASH capabilities through Monte Carlo beam modelling and fitting to analytical functions.</div></span></li><li><span>2.</span><span><div>Assessing VHEE facility infrastructure suitability for radiobiological research.</div></span></li></ul>Parameter variation studies were performed to determine dose dependency on beam dimension and source-to-surface distance (SSD). The dose rate was calculated from surface dose, linearly scaled based on the beamline. Empirical dose rate functions were developed, with an average discrepancy < 3 % between simulation and fit data. Dose rates were compared to the FLASH threshold of 40 Gy/s.</div><div>Further parameter and infrastructure considerations provided an overview of each facility’s radiobiological experiment capabilities, providing researchers with a useful resource in designing and planning of future VHEE-FLASH experiments.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"565 ","pages":"Article 165752"},"PeriodicalIF":1.4,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072531","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}

引用次数: 0

NXSIM: A normalized XRF standardless iterative simulation method for qualitative and quantitative XRF analysis via MCNP NXSIM：一种标准化的XRF无标准迭代模拟方法，用于通过MCNP进行定性和定量的XRF分析

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-05-16 DOI: 10.1016/j.nimb.2025.165739

K. Yavaş, O. Toker, Ö. Akcali, O. İçelli

{"title":"NXSIM: A normalized XRF standardless iterative simulation method for qualitative and quantitative XRF analysis via MCNP","authors":"K. Yavaş, O. Toker, Ö. Akcali, O. İçelli","doi":"10.1016/j.nimb.2025.165739","DOIUrl":"10.1016/j.nimb.2025.165739","url":null,"abstract":"<div><div>A normalized XRF standardless iterative simulation method (NXSIM) is proposed. Various methods are available to perform quantitative analysis with the XRF method. Many of these methods have laborious and costly processes that require sample preparations, specific reference materials, and repeated measurements. For such reasons, researchers continue to search for methods that provide more accurate and faster results. The main goals of this study are to obtain much faster results with acceptable accuracy by eliminating the need for repeated experimental measurements and reference samples. In this study, XRF spectrometry simulations were carried out with the scattering geometry designed in the MCNP 6.2 code system. The obtained results were used to perform quantitative analysis for experimentally prepared samples. After six samples with different element content and composition were prepared by the press pellet method, XRF spectra were obtained experimentally. Simulations were run with random element weight percentages using the elements in the sample. The elemental compositions of the samples were determined by the iteration method developed from the simulation results and experimental results. According to the results obtained, it has been demonstrated that XRF quantitative analysis can be performed by NXSIM with acceptable precision and accuracy.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"565 ","pages":"Article 165739"},"PeriodicalIF":1.4,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071148","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}

引用次数: 0

Y2O3 and Y2Ti2O7 nanoparticles stability in oxide dispersion strengthened steels under hydrogen irradiation at elevated temperature 高温氢辐照下氧化分散强化钢中Y2O3和Y2Ti2O7纳米颗粒的稳定性

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-05-14 DOI: 10.1016/j.nimb.2025.165741

Ahsan Ejaz , Limin Zhang , Zhiqiang Wang , Muhammad Bilal , Xuan Meng , Tong Liu , Madiha Shadab , Tieshan Wang

{"title":"Y2O3 and Y2Ti2O7 nanoparticles stability in oxide dispersion strengthened steels under hydrogen irradiation at elevated temperature","authors":"Ahsan Ejaz , Limin Zhang , Zhiqiang Wang , Muhammad Bilal , Xuan Meng , Tong Liu , Madiha Shadab , Tieshan Wang","doi":"10.1016/j.nimb.2025.165741","DOIUrl":"10.1016/j.nimb.2025.165741","url":null,"abstract":"<div><div>Oxide dispersion-strengthened steels with Y<sub>2</sub>O<sub>3</sub> and Y<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> nanoparticles (NPs) and Chinese low-activation ferritic/martensitic steel (CLF) samples were fabricated by the mechanical alloying method and sequentially irradiated at 550 °C with 50 keV H<sub>2</sub><sup>+</sup> ions to various fluences. The hydrogen-bubble density and average bubble size are significantly higher in CLF steel. After irradiation, the size of NPs in YTO and YO steel reduced to ∼ 7 nm and ∼ 15 nm; finer NPs in YTO steel enhanced the resistance to the irradiation-induced defects. The absence of NPs in CLF causes the formation of dislocation networks. Y<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> NPs phases in YTO steel are highly stable and show semi-coherent orientation, while YAlO<sub>3</sub> NPs phases show incoherent orientation with the matrix. Y<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> NPs resist defect formation by reducing the internal stresses and obstructing dislocation networks. This study suggests that introducing Y<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> NP into ODS steel presents a promising approach to improving the resistance towards irradiation damage.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"565 ","pages":"Article 165741"},"PeriodicalIF":1.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942727","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}

引用次数: 0

First performance tests of the new advanced radiofrequency quadrupole for ALIS at the test bench setup at VERA 新先进的射频四极杆在VERA的试验台进行了首次性能测试

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-05-14 DOI: 10.1016/j.nimb.2025.165751

Oscar Marchhart , Markus Schiffer , Martin Martschini , Gereon Weingarten , Peter Steier , Elisa Linnartz , Erik Strub , Tibor Dunai , Dennis Mücher , Robin Golser

引用次数: 0

Irradiation response of SiOC under simultaneous helium and silicon ion irradiation SiOC在氦、硅离子同时辐照下的辐照响应

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-05-14 DOI: 10.1016/j.nimb.2025.165736

Yongchang Li , Qing Su , Zhihan Hu , Yaqiao Wu , Michael Nastasi , Lin Shao

{"title":"Irradiation response of SiOC under simultaneous helium and silicon ion irradiation","authors":"Yongchang Li , Qing Su , Zhihan Hu , Yaqiao Wu , Michael Nastasi , Lin Shao","doi":"10.1016/j.nimb.2025.165736","DOIUrl":"10.1016/j.nimb.2025.165736","url":null,"abstract":"<div><div>SiOC is an amorphous ceramic with superior irradiation stability, making it attractive for applications in high-temperature and high-radiation environments. However, its glassy state stability under the synergistic effects of helium introduction and heavy damage cascades, as expected in a reactor, has not yet been fully assessed. In this study, e-gun evaporated SiOC was simultaneously irradiated using 150 keV helium at a 45-degree incident angle and 1.5 MeV silicon self-ions at a normal incident angle, at room temperature, 300 °C, and 500 °C, respectively. For all irradiation conditions, high-resolution transmission electron microscopy and electron diffraction analysis across different depths of the film did not reveal any crystallization. However, Si-enriched precipitates appeared, with fewer precipitates observed at the highest irradiation temperature. Surface scanning electron microscopy showed periodic patterning on the surface of both room temperature and 300 °C irradiated samples, but not on the 500 °C irradiated sample. The study demonstrates the overall excellent amorphization resistance of SiOC.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"565 ","pages":"Article 165736"},"PeriodicalIF":1.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946623","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}

引用次数: 0

Advances in dynamic and batch processing of PIXE spectra PIXE光谱动态和批量处理研究进展

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-05-13 DOI: 10.1016/j.nimb.2025.165734

L. Pichon , Q. Lemasson , D. Bachiller-Perea , C. Pacheco

{"title":"Advances in dynamic and batch processing of PIXE spectra","authors":"L. Pichon , Q. Lemasson , D. Bachiller-Perea , C. Pacheco","doi":"10.1016/j.nimb.2025.165734","DOIUrl":"10.1016/j.nimb.2025.165734","url":null,"abstract":"<div><div>We present here the advances on two custom-built software programs for PIXE spectra processing, both of them based on the GUPIX package. The first one, named LivePIXE, is a standalone executable that has been implemented in the New AGLAE data acquisition system to process dynamically PIXE spectra during recording, almost in real-time. It allows to verify if the selected area of the object is relevant for the analysis and it provides a first interpretation of the PIXE results in order to orientate further analysis. The second program presented here is an updated version of the TrauPIXE software, which we had previously developed to process series of recorded PIXE spectra. As different X-ray absorbers can be installed in front of the detectors, each element of interest in the sample can be measured with different detection limits anduncertainties. This updated version selects the most precise element concentrations from all the PIXE results. It can also take into account the elemental concentrations obtained simultaneously by PIGE or/and RBS and incorporate them during the PIXE processing and into the final compositional table.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"565 ","pages":"Article 165734"},"PeriodicalIF":1.4,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942725","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}

引用次数: 0

Air quality assessment of a wildfires event affecting Mexico City’s atmosphere using PIXE 使用PIXE对影响墨西哥城大气的野火事件进行空气质量评估

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-05-13 DOI: 10.1016/j.nimb.2025.165733

Francisca Aldape , Javier Flores-Maldonado , Javier Flores-Aldape

{"title":"Air quality assessment of a wildfires event affecting Mexico City’s atmosphere using PIXE","authors":"Francisca Aldape , Javier Flores-Maldonado , Javier Flores-Aldape","doi":"10.1016/j.nimb.2025.165733","DOIUrl":"10.1016/j.nimb.2025.165733","url":null,"abstract":"<div><div>An event involving multiple biomass burning wildfires that occurred in southern and central Mexico during May 2019 was investigated using Particle Induced X-ray Emission (PIXE). The event severely affected the Mexico City Metropolitan Area (MCMA), resulting in elevated concentrations of various pollutants, including fine particulate matter (PM2.5), which accumulated in the region over several days. PM<sub>2.5</sub> mass concentration reached a maximum value of 63 µg/m<sup>3</sup>, exceeding the Mexican Air Quality Standard of 45 µg/m<sup>3</sup> in 24 h, in effect in Mexico in 2019. PM<sub>2.5</sub> samples were collected during the wildfires episode and analyzed by PIXE to determine their elemental concentrations. Additionally, a high-volume PM<sub>2.5</sub> sampler operating in parallel provided samples to determine organic carbon (OC) and elemental carbon (EC). Time series of PM<sub>2.5</sub>, OC, and EC, as well as those elements considered respectively good markers of biomass burning (K) and fossil fuel combustion (S and V) were generated. The results revealed trends in accordance with their origin, verifying the presence of particles proceeding from common sources, either from biomass burning or fossil fuel combustion. These results were cross compared with aerosol transport trajectories generated using the HYSPLIT model for computing simple air parcel trajectories, showing to be in agreement. Non-soil (smoke) potassium was estimated using its corresponding enrichment factor before, during, and after the most critical period of the event (May 9–18, 2019), indicating that wildfires were indeed the main contributors to the local atmospheric pollution around the peak of the event. Tracers time series proved to be a very valuable asset to link the pollutants to their sources.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"565 ","pages":"Article 165733"},"PeriodicalIF":1.4,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942728","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}

引用次数: 0

Self-ion implantation using a 62Ni isotopic beam obtained with isotopic separation accomplished in a 3 MV NEC tandem accelerator 利用同位素分离得到的62Ni同位素束在3 MV NEC串联加速器上进行自离子注入

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-05-12 DOI: 10.1016/j.nimb.2025.165738

Miguel Pena , Xuemei Wang , Weilin Jiang , Rijul Chauhan , Frank A. Garner , Michael Nastasi , Lin Shao

{"title":"Self-ion implantation using a 62Ni isotopic beam obtained with isotopic separation accomplished in a 3 MV NEC tandem accelerator","authors":"Miguel Pena , Xuemei Wang , Weilin Jiang , Rijul Chauhan , Frank A. Garner , Michael Nastasi , Lin Shao","doi":"10.1016/j.nimb.2025.165738","DOIUrl":"10.1016/j.nimb.2025.165738","url":null,"abstract":"<div><div>Self-ion irradiation has been widely used to simulate neutron damage. One issue of self-ion irradiations is the accuracy of predicted implant profiles and the associated local displacement damage. Experimental validation of ion penetration depth requires ion implantation of isotopes that are significantly low in natural abundance. Such isotopic beams are often obtained using expensive isotope-pure sputtering cathode materials. A pure Ni-62 beam can be produced from natural nickel, but effective separation requires a 90-degree bending magnet. This study demonstrates that an isotopically pure beam can be obtained using natural cathode materials with traditional small angle bending magnets. The key is to use a beam collector after the acceleration tank for mass scanning, with additional separation resolution gained from the long distance between the low-energy magnet and the beam collector. We demonstrate the feasibility of obtaining distinct peaks of Ni-58, Ni-60, Ni-61, and Ni-62 from a natural Ni cathode. Depth profiles for 2 MeV and 3.5 MeV Ni-62 ions were obtained, and show dramatic differences compared to SRIM predictions, which overestimate the ion range by ∼100% for 2 MeV and ∼30% for 3.5 MeV ions.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"565 ","pages":"Article 165738"},"PeriodicalIF":1.4,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935851","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}

引用次数: 0

Amorphization process of two-phase Ni30Zr70 alloy by high-energy heavy ion irradiation 高能重离子辐照两相Ni30Zr70合金非晶化过程

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-05-12 DOI: 10.1016/j.nimb.2025.165732

Y. Mori , A. Iwase , Y. Kaneno , T. Matsui , R. Yamada , T. Wada , H. Kato , N. Ishikawa , F. Hori

引用次数: 0

Measurement of α-particle-induced nuclear reaction cross sections on 45Sc α-粒子诱导45Sc核反应截面的测量

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-05-12 DOI: 10.1016/j.nimb.2025.165735

Emi Sakamoto , Masayuki Aikawa , Shota Nikaido , Saki Goto , Akihiro Nambu , Hiromitsu Haba

引用次数: 0