Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms最新文献_第5页

Finite element analysis of the impact of beam heating mode in molten salt corrosion experiments employing simultaneous ion irradiation 同时离子辐照熔盐腐蚀实验中光束加热方式影响的有限元分析

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 : 2025-04-16 DOI: 10.1016/j.nimb.2025.165694

Rijul R. Chauhan , Trevor Parker , Kenneth Cooper , Anthony Cecchini , Kyle Williams , Laura Hawkins , Michael Nastasi , Frank A. Garner , Lin Shao

{"title":"Finite element analysis of the impact of beam heating mode in molten salt corrosion experiments employing simultaneous ion irradiation","authors":"Rijul R. Chauhan , Trevor Parker , Kenneth Cooper , Anthony Cecchini , Kyle Williams , Laura Hawkins , Michael Nastasi , Frank A. Garner , Lin Shao","doi":"10.1016/j.nimb.2025.165694","DOIUrl":"10.1016/j.nimb.2025.165694","url":null,"abstract":"<div><div>Finite element analysis was used to investigate the temperature and stress profiles that develop in 316L stainless steel membranes being irradiated using different proton beam conditions in contact with a molten salt environment. It was shown that in addition to a nonuniform irradiation profile, a focused 2 MeV proton beam leads to very strong temperature and stress gradients in the membrane, introducing highly localized driving forces that complicate and even compromise the integrity and reliability of the experimental results of corrosion studies. The use of a focused beam in corrosion studies can create experimental artifacts that may misrepresent the true corrosion behavior.. In contrast, the use of a rastered beam is shown to distribute the protons and resulting radiation damage uniformly across the membrane face, and more importantly, results in temperature and stress profiles that are not only very uniform but are of much lower magnitude. The use of a rastered beam during molten salt corrosion experiments is therefore recommended to achieve uniform damage rates, thereby reducing both gradients and magnitudes of the temperature and stress distributions.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165694"},"PeriodicalIF":1.4,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143837830","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}

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The influence of Fe substrate crystallographic orientation on the film formation of Cu clusters Fe衬底晶体取向对Cu簇成膜的影响

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 : 2025-04-15 DOI: 10.1016/j.nimb.2025.165691

Yiwen He , Shengyuan Li , Gongping Li , Bojun Ruan , Hanbo Zhang , Shixu Zhang

{"title":"The influence of Fe substrate crystallographic orientation on the film formation of Cu clusters","authors":"Yiwen He , Shengyuan Li , Gongping Li , Bojun Ruan , Hanbo Zhang , Shixu Zhang","doi":"10.1016/j.nimb.2025.165691","DOIUrl":"10.1016/j.nimb.2025.165691","url":null,"abstract":"<div><div>In this study, molecular dynamics simulations were conducted to investigate the continuous deposition of Cu<sub>13</sub> clusters on Fe(001), Fe(011), and Fe(111) substrates, analyzing the effects of substrate crystallographic orientation on film formation. The results demonstrate that the crystallographic orientation of the Fe substrate has a significant impact on the film properties, including morphology, layer coverage, interfacial mixing, epitaxial quality, and internal stress. Furthermore, the influence of crystallographic orientation on the film evolves with increasing incident energy. At lower incident energies, films on the Fe(001) substrate exhibit the lowest surface roughness, while at higher incident energies, films on the Fe(011) substrate are the smoothest. Across the entire range of incident energies, films grown on the Fe(001) substrate have the highest epitaxial quality and layer coverage, whereas those on the Fe(011) substrate show the lowest interfacial mixing.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165691"},"PeriodicalIF":1.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833358","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

Study of TID & dose rate effect of gamma radiation on COTS CMOS camera 研究伽马辐射对 COTS CMOS 相机的 TID 和剂量率影响

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 : 2025-04-14 DOI: 10.1016/j.nimb.2025.165700

Manish Kumar Tiwari , Jyoti Diwan , S.K. Singh , C.A. Betty

{"title":"Study of TID & dose rate effect of gamma radiation on COTS CMOS camera","authors":"Manish Kumar Tiwari , Jyoti Diwan , S.K. Singh , C.A. Betty","doi":"10.1016/j.nimb.2025.165700","DOIUrl":"10.1016/j.nimb.2025.165700","url":null,"abstract":"<div><div>Commercially available CMOS cameras suffer from gamma radiation-induced total ionizing dose (TID) effect and transient effect in nuclear surveillance applications where radiation dose is very high. TID effects are those observable effects that do not disappear soon after the removal of the radiation source, whereas transient effects appear after the incident of gamma photons and the camera returns to a normal state soon. In this paper, we have presented gamma irradiation results of CMOS APS cameras using a Co-60 source. We have investigated the TID effect on the transient response of CMOS cameras due to gamma radiation. We have irradiated a camera at three different dose rates with a TID of 37 krad and another camera at 10 krad/hr for 40 krad TID. We have used image analysis techniques to find the TID effect and the transient effect. First, we have presented the TID effect due to gamma irradiation. Subsequently, we have presented the dose rate effect of gamma radiation and discussed the TID effect on the dose rate dependent transient response of the cameras. We have observed an increase in dark signal, dark signal non-uniformity and temporal noise as the TID effect and the snow effect as a transient effect. We have not found an observable effect on the transient response of the camera due to TID. The analysis techniques and results presented in this paper are useful in applications where cameras are used as radiation monitors, in surveillance and remote inspection applications.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825469","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

Long indirectly heated cathode ion source with multi-slit electrodes for material modification process 用于材料改性的多缝电极长间接加热阴极离子源

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 : 2025-04-13 DOI: 10.1016/j.nimb.2025.165705

Hiroaki Kai , Yoshiro Igarashi , Daiki Takashima , Takeshi Matsumoto , Nariaki Hamamoto , Sami K. Hahto , George Sacco

引用次数: 0

Unraveling interaction mechanisms of Kr cavities with Ag in irradiated silicon carbide under high temperatures 高温下辐照碳化硅中Kr空腔与Ag相互作用机理的揭示

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 : 2025-04-12 DOI: 10.1016/j.nimb.2025.165697

Chuanhao Chen , Tao Wang , Hang Zang , Fang Liu , Pingan Zhou , Tan Shi , Huan He , Ping Zhang , Chenyang Lu , Hang Guo , Po Zhao , Shikun Chen , Yi Song , Yabin Zhu

{"title":"Unraveling interaction mechanisms of Kr cavities with Ag in irradiated silicon carbide under high temperatures","authors":"Chuanhao Chen , Tao Wang , Hang Zang , Fang Liu , Pingan Zhou , Tan Shi , Huan He , Ping Zhang , Chenyang Lu , Hang Guo , Po Zhao , Shikun Chen , Yi Song , Yabin Zhu","doi":"10.1016/j.nimb.2025.165697","DOIUrl":"10.1016/j.nimb.2025.165697","url":null,"abstract":"<div><div>Polycrystalline 3C-SiC was sequentially implanted with 3.0 MeV and 1.2 MeV Kr<sup>12+</sup> ions, followed by annealing at 1500 °C to form a double-layer of nanosized Kr cavities. Subsequently, 2.6 MeV Ag<sup>19+</sup> ions were implanted into both the Kr-implanted sample and a pristine 3C-SiC sample, followed by annealing at 1500 °C. Experimental results revealed the formation of a Kr-Ag-Kr sandwich structure in the Kr-implanted 3C-SiC after Ag<sup>19+</sup> ion implantation. At 1500 °C, Ag atoms exhibited localized diffusion in 3C-SiC, forming nanoscale clusters. Compared to pristine 3C-SiC, the Kr-implanted 3C-SiC showed smaller Ag clusters with a higher distribution density. The independent existence of Kr cavities and Ag clusters was observed, with Ag atoms preferentially diffusing into regions of higher damage. Enhanced diffusivity of Ag atoms was noted in samples containing Kr cavities. This study provides valuable insights into the diffusion behavior of fission product Ag in the SiC layer of TRISO fuel particles.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165697"},"PeriodicalIF":1.4,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821110","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

In situ elastic recoil detection for graphene oxide analysis 用于氧化石墨烯分析的原位弹性后坐力检测

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 : 2025-04-09 DOI: 10.1016/j.nimb.2025.165706

D. Iveković , S. Kumar , Z. Siketić , O. Romanenko , M. Karlušić

引用次数: 0

A new graphitization setup for radiocarbon dating using accelerator mass spectrometer at Physical Research Laboratory Ahmedabad 艾哈迈达巴德物理研究实验室使用加速器质谱仪进行放射性碳测年的新型石墨化装置

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 : 2025-04-09 DOI: 10.1016/j.nimb.2025.165698

Amzad Hussain Laskar , Pratheeksha Nayak , Aishwarya Singh , Rahul Kumar Agrawal , Ranjan Kumar Mohanty , Manan S. Shah , M.G. Yadava

{"title":"A new graphitization setup for radiocarbon dating using accelerator mass spectrometer at Physical Research Laboratory Ahmedabad","authors":"Amzad Hussain Laskar , Pratheeksha Nayak , Aishwarya Singh , Rahul Kumar Agrawal , Ranjan Kumar Mohanty , Manan S. Shah , M.G. Yadava","doi":"10.1016/j.nimb.2025.165698","DOIUrl":"10.1016/j.nimb.2025.165698","url":null,"abstract":"<div><div>A new vacuum system for radiocarbon (<sup>14</sup>C) dating has been developed at the Physical Research Laboratory (PRL), Ahmedabad. This system uses zinc as a reducing agent and iron powder as a catalyst to convert CO<sub>2</sub> into graphite, which is then analyzed using Accelerator Mass Spectrometry (AMS) for measuring <sup>14</sup>C content. The system efficiently processes CO<sub>2</sub> from wide range of samples including organic material, carbonates and water. In this paper, we discuss the details of the setup, graphite reduction efficiency, background activity, and measurements of oxalic acid standards alongside <sup>14</sup>C determinations from known international standards. Additionally, the paper outlines the data reduction process for AMS and the procedure for reporting radiocarbon content with uncertainties. The system can handle five samples at a time, with CO<sub>2</sub> reduction efficiency ranging from 50 to 100%. Multiple <sup>14</sup>C age measurements from 12 international standards highlight the system’s precision and reliability.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165698"},"PeriodicalIF":1.4,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808072","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}

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Performance testing a portable 109Cd XRF system for the measurement of ex vivo skin iron content in a rat model of iron overload 便携式109Cd XRF系统在铁超载大鼠模型中测量离体皮肤铁含量的性能测试

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 : 2025-04-09 DOI: 10.1016/j.nimb.2025.165696

Sami Ullah Bangash PhD , Fiona E. McNeill , Michael J. Farquharson , Bruce Wainman , Michelle Zeller

{"title":"Performance testing a portable 109Cd XRF system for the measurement of ex vivo skin iron content in a rat model of iron overload","authors":"Sami Ullah Bangash PhD , Fiona E. McNeill , Michael J. Farquharson , Bruce Wainman , Michelle Zeller","doi":"10.1016/j.nimb.2025.165696","DOIUrl":"10.1016/j.nimb.2025.165696","url":null,"abstract":"<div><div>The ability of a <sup>109</sup>Cd-based portable X-ray fluorescence (<sup>109</sup>Cd pXRF) system to differentiate iron (Fe) levels in the ex vivo skin of 28 rats dosed with Fe<sup>2+</sup> via intraperitoneal injection has been tested. The 28 animals included control rats and those dosed with either 80 mg Fe<sup>2+</sup>/kg or 160 mg Fe<sup>2+</sup>/kg. The system was able to distinguish between groups of control and dosed rats based on their measured skin iron concentration (p = 0.001 and p = 0.002). Further, linear regression analysis of individual rat skin Fe levels against Fe<sup>2+</sup> dose in mg/kg showed a strong correlation (r<sup>2</sup> = 0.84, p < 0.0001) and indicated that the system could determine whether individual animals had been dosed with Fe. Strong correlation (r<sup>2</sup> = 0.85, p < 0.0001) between the <sup>109</sup>Cd pXRF system skin Fe measurements and skin Fe measurements using a laboratory-based XRF system (which had previously shown a correlation between skin Fe and with liver Fe) suggest that <sup>109</sup>Cd pXRF measurements could be used to predict elevated Fe levels in the liver.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165696"},"PeriodicalIF":1.4,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808073","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

Effects of Ge ion irradiation on dielectric properties of Si-based PiN diodes 锗离子辐照对硅基PiN二极管介电性能的影响

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 : 2025-04-09 DOI: 10.1016/j.nimb.2025.165692

Chengyuan Wu , Huan Tan , Yumeng Yang , Zhimei Yang , Weihao Lin , Lijun Wang , Min Gong , Mingmin Huang , Yao Ma , Yun Li

{"title":"Effects of Ge ion irradiation on dielectric properties of Si-based PiN diodes","authors":"Chengyuan Wu , Huan Tan , Yumeng Yang , Zhimei Yang , Weihao Lin , Lijun Wang , Min Gong , Mingmin Huang , Yao Ma , Yun Li","doi":"10.1016/j.nimb.2025.165692","DOIUrl":"10.1016/j.nimb.2025.165692","url":null,"abstract":"<div><div>The effects of 212 MeV Ge ion irradiation with various irradiation fluences on the dielectric properties of Si-based PiN diodes have been investigated. SRIM simulations demonstrate that Ge ion irradiation primarily induces silicon vacancy (<em>V<sub>Si</sub></em>) defects, leading to the alteration of the silicon lattice structure. The electrical characterization analysis indicates that the impact of Ge ion irradiation on the electrical characteristics of the device is negligible. However, there is a positive correlation between the variation in the dielectric constant (<em>ε’</em>) and the irradiation fluence, wherein <em>ε’</em> peak shifts towards higher frequencies and the dielectric loss (<em>ε’’</em>) decreases. Raman spectroscopy reveals a significant decrease in the intensity of the main peak at 525 cm<sup>−1</sup>, accompanied by an increase in the full width at half maximum (FWHM). These observations suggest that Si-Si bonds within the silicon lattice structure might have been broken due to Ge ion irradiation. The deep level transient spectroscopy (DLTS) results also demonstrate a positive correlation between the <em>V<sub>2</sub><sup>(0/−)</sup></em> bulk defects and irradiation fluence. These findings provide important insights into the design of radiation hardened devices, particularly relevant to aerospace and nuclear applications. Furthermore, the correlation between bulk defects and dielectric behaviour provides new avenues for optimizing high-frequency communication systems and energy-efficient semiconductor devices, thus enhancing the relevance of silicon technology in next-generation electronics.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165692"},"PeriodicalIF":1.4,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808074","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

Irradiation-induced formation of G-phase precipitates and M2X carbides in self-ion irradiated HT-9 自离子辐照HT-9中g相沉淀和M2X碳化物的辐照诱导形成

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 : 2025-04-05 DOI: 10.1016/j.nimb.2025.165703

Sohail Shah , Miguel Pena , Yongchang Li , Mukesh Bachhav , Xinchang Zhang , Nathaniel W. Thomas , Cheng Sun , Frank A. Garner , Michael Nastasi , Lin Shao

{"title":"Irradiation-induced formation of G-phase precipitates and M2X carbides in self-ion irradiated HT-9","authors":"Sohail Shah , Miguel Pena , Yongchang Li , Mukesh Bachhav , Xinchang Zhang , Nathaniel W. Thomas , Cheng Sun , Frank A. Garner , Michael Nastasi , Lin Shao","doi":"10.1016/j.nimb.2025.165703","DOIUrl":"10.1016/j.nimb.2025.165703","url":null,"abstract":"<div><div>Ferritic-martensitic steels with high chromium content are a promising material group for advanced nuclear systems due to their high temperature strength and good irradiation tolerance. HT-9 is an optimized and often-studied alloy in this group, but additional studies are required on its radiation response under extreme conditions to be experienced in various types of nuclear reactors, especially with respect to phase stability under irradiation. Self-ion irradiation of HT-9 by 5 MeV Fe ions was used to simulate neutron-induced behavior reaching peak doses of 100 and 300 dpa at temperatures ranging from 450 to 550 °C. M<sub>23</sub>C<sub>6</sub> carbides that existed prior to irradiation were found to remain stable under all examined irradiation conditions. As irradiation progressed at 450 and 500 °C, however, formation of spherical-like G-phase precipitates and needle-like M<sub>2</sub>X carbides was observed. G-phase precipitates were found to be enriched in Ni, Si, and Mn, and show no interface segregation, whereas needle-like M<sub>2</sub>X carbides were rich in Cr and Mo and clearly displayed interface segregation of Ni and Si. M<sub>2</sub>X carbide formation is believed to be assisted by vacancies, while G-phase precipitation is thought to be assisted by interstitials. This difference in defect-mediated formation leads to a difference in distribution with depth. M<sub>2</sub>X carbides are distributed over shallower depths than that of G-phase precipitates, consistent with defect imbalance predictions that consider the influence of the injected interstitial effect.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165703"},"PeriodicalIF":1.4,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783063","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