Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms最新文献_第8页

TCAD simulation method on single-event burnout of SiC JBS diodes SiC JBS二极管单事件烧蚀的TCAD仿真方法

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 : 2025-07-10 DOI: 10.1016/j.nimb.2025.165797

Chengwen Fu , Xiaoping Dong , Wende Huang , Yaosen Liu , Yao Ma , Mingmin Huang , Zhimei Yang , Yun Li , Min Gong

引用次数: 0

Nickel doped magnesium oxide nanoparticles: synthesis, characterization, and thermoluminescence dosimetry features in gamma irradiation 镍掺杂氧化镁纳米颗粒：合成、表征和伽马辐射中的热释光剂量学特征

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 : 2025-07-10 DOI: 10.1016/j.nimb.2025.165782

R. Adibi , M. Zahedifar , E. Sadeghi , S. Harooni

{"title":"Nickel doped magnesium oxide nanoparticles: synthesis, characterization, and thermoluminescence dosimetry features in gamma irradiation","authors":"R. Adibi , M. Zahedifar , E. Sadeghi , S. Harooni","doi":"10.1016/j.nimb.2025.165782","DOIUrl":"10.1016/j.nimb.2025.165782","url":null,"abstract":"<div><div>The novel Ni-doped magnesium oxide nanoparticles were synthesized using the co-precipitation technique and optimized across various dopant concentrations and annealing conditions. Unlike previous studies, this work systematically investigates the influence of Ni concentration and thermal treatment on thermoluminescence (TL) properties of the synthesized MgO: Ni nanoparticles. The crystalline properties, morphology, composition, and structure of the fabricated samples were characterized. XRD analysis revealed a pure cubic MgO phase with crystallite sizes below 50 nm. After 20 Gy gamma irradiation, the sample doped with 1 mol% Ni and annealed at 700 °C exhibited the highest integrated TL signal. The material showed a linear gamma dose response up to 1000 Gy and excellent signal stability over 30 days. Kinetic parameters were determined using curve fitting based on a general-order kinetic model. These findings highlight the potential of MgO: Ni nanoparticles as efficient phosphor for high dose dosimetry.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165782"},"PeriodicalIF":1.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144587768","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

Charge collection efficiency of diamond and silicon sensors irradiated with alpha particles α粒子辐照下金刚石和硅传感器的电荷收集效率

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 : 2025-07-07 DOI: 10.1016/j.nimb.2025.165778

E.M. Muller , G.A. Carini , L. Fabris , G. Giacomini , J. Kierstead , S.M. McConchie , D.A. Pinelli , S. Rescia , E. Rossi

{"title":"Charge collection efficiency of diamond and silicon sensors irradiated with alpha particles","authors":"E.M. Muller , G.A. Carini , L. Fabris , G. Giacomini , J. Kierstead , S.M. McConchie , D.A. Pinelli , S. Rescia , E. Rossi","doi":"10.1016/j.nimb.2025.165778","DOIUrl":"10.1016/j.nimb.2025.165778","url":null,"abstract":"<div><div>To evaluate the viability of using semiconductors as sensor materials in a detector for the Associated Particle Imaging technique, the radiation hardness of silicon and diamond diodes to alpha particles has been assessed. The detector lifetimes for both silicon and diamond sensors were measured under the prolonged exposure to alpha particles emitted by an <sup>241</sup>Am source. The silicon detector was exposed to alpha radiation for approximately two months, reaching an accumulated fluence of <span><math><mrow><mo>∼</mo><mn>1</mn><mo>.</mo><mn>5</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>12</mn></mrow></msup><mspace></mspace><mi>α</mi><mspace></mspace><msup><mrow><mtext>cm</mtext></mrow><mrow><mo>−</mo><mn>2</mn></mrow></msup></mrow></math></span>. Additionally, by using a high purity single-crystal diamond with coplanar electrodes operating with full charge collection, the diamond detector response was measured over approximately ten months reaching an accumulated fluence of over <span><math><mrow><mn>6</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>12</mn></mrow></msup><mspace></mspace><mi>α</mi></mrow></math></span> cm<span><math><msup><mrow></mrow><mrow><mo>−</mo><mn>2</mn></mrow></msup></math></span>.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165778"},"PeriodicalIF":1.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572702","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

Thickness and uniformity mapping of thin foils using resistive silicon detectors 用电阻硅探测器绘制薄箔的厚度和均匀性

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 : 2025-07-07 DOI: 10.1016/j.nimb.2025.165788

T. Hankins , A.B. McIntosh , K. Hagel , A.D. Abbott , A. Alvarez , R. Bartsch , M. McClure , S. Regener , M.Q. Sorensen , S.J. Yennello

引用次数: 0

Deep learning-based electronics architecture for pulse pile-up correction in synchrotron radiation spectroscopic detection 基于深度学习的同步辐射光谱检测脉冲堆积校正电子结构

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 : 2025-07-04 DOI: 10.1016/j.nimb.2025.165730

Shoupeng Wang , Nan Pan , Songqi Gu , Yu Wang , Yuying Huang

{"title":"Deep learning-based electronics architecture for pulse pile-up correction in synchrotron radiation spectroscopic detection","authors":"Shoupeng Wang , Nan Pan , Songqi Gu , Yu Wang , Yuying Huang","doi":"10.1016/j.nimb.2025.165730","DOIUrl":"10.1016/j.nimb.2025.165730","url":null,"abstract":"<div><div>Synchrotron light sources have become indispensable tools for microstructural analysis, material characterization, and dynamic process observation, owing to their high photon flux and broad wavelength range. However, the increased photon flux introduces challenges in maintaining energy resolution in spectroscopic detection, particularly due to pulse pile-up at high count rates. This paper proposes a novel hybrid architecture that integrates deep learning algorithms with FPGA hardware to achieve real-time pulse pile-up correction in synchrotron radiation spectroscopic detectors. By employing the Transformer algorithm within an FPGA and leveraging GPU-based retraining to adapt to varying count rates, the system dynamically optimizes energy resolution. Experimental validation with data from the VortexEX90 detector demonstrates that the proposed approach achieves an energy resolution of approximately 126.8 eV at 60 kcps and 135.5 eV at 1 Mcps for incident photons of 22 keV, ensuring good performance across a wide range of count rates. This work provides a scalable, high-efficiency solution for pulse pile-up correction, advancing the capabilities of synchrotron spectroscopic detection under high-count-rate conditions.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165730"},"PeriodicalIF":1.4,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144562787","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

Thermoluminescence properties of Y3Al5O12:Ce transparent ceramics at different linear energy transfers Y3Al5O12:Ce透明陶瓷在不同线性能量转移下的热释光特性

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 : 2025-07-03 DOI: 10.1016/j.nimb.2025.165784

Kensei Ichiba , Masanori Koshimizu , Go Okada , Yutaka Fujimoto , Kenichi Watanabe , Yusuke Koba , Takumi Kato , Daisuke Nakauchi , Noriaki Kawaguchi , Takayuki Yanagida

{"title":"Thermoluminescence properties of Y3Al5O12:Ce transparent ceramics at different linear energy transfers","authors":"Kensei Ichiba , Masanori Koshimizu , Go Okada , Yutaka Fujimoto , Kenichi Watanabe , Yusuke Koba , Takumi Kato , Daisuke Nakauchi , Noriaki Kawaguchi , Takayuki Yanagida","doi":"10.1016/j.nimb.2025.165784","DOIUrl":"10.1016/j.nimb.2025.165784","url":null,"abstract":"<div><div>Thermoluminescence (TL) properties of Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>(YAG):Ce with different Ce concentrations after irradiations of gamma rays or heavy charged particles investigated analyzed. The TL glow curves were obtained after irradiations of gamma rays at different doses and the heavy charged particles at different linear energy transfers (LETs). The glow curves significantly depended on the gamma-ray dose or LET for YAG:Ce with low Ce concentration. This behavior indicates that the preferential trap centers are different for irradiations of gamma rays and heavy charged particles. The TL intensity decreased significantly with LET. The decrease can be explained with competition between the trapping of electron-hole pairs, which will result in TL upon heating, and the quenching of electron-hole pairs owing to excited states interaction. Notably, the decrease in the TL intensity with LET was suppressed at high Ce concentration. This is explained with faster trapping of electron-hole pairs becuase Ce<sup>3+</sup> ions act as hole trapping centers, which results in a suppressed contribution of the quenching in the above-mentioned competition.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165784"},"PeriodicalIF":1.4,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144535792","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

Prediction and interpretation of (n,2n) reaction cross sections using a KOA-XGBoost-SHAP machine learning framework 使用KOA-XGBoost-SHAP机器学习框架预测和解释（n,2n）反应截面

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 : 2025-07-02 DOI: 10.1016/j.nimb.2025.165789

YanBang Tang

{"title":"Prediction and interpretation of (n,2n) reaction cross sections using a KOA-XGBoost-SHAP machine learning framework","authors":"YanBang Tang","doi":"10.1016/j.nimb.2025.165789","DOIUrl":"10.1016/j.nimb.2025.165789","url":null,"abstract":"<div><div>Accurate prediction of (n,2n) reaction cross sections is crucial for nuclear applications but faces challenges due to experimental difficulties and data scarcity. This study proposes a novel triple-hybrid machine learning framework, KOA-XGBoost-SHAP, to address these challenges. The framework integrates the Kepler Optimization Algorithm (KOA) for hyperparameter tuning, the XGBoost model for prediction, and SHapley Additive exPlanations (SHAP) for interpretability. Using 1,282 (n,2n) cross-section data points from the EXFOR database, covering incident neutron energies (EN) from 1 to 375 MeV and target nuclides with Z from 1 to 94 and A from 2 to 239, six ML models were optimized using KOA. The KOA-XGBoost model demonstrated superior predictive accuracy (R<sup>2</sup> = 0.94, RMSE = 152.99 mb) when benchmarked against the EXFOR test set. Notably, its direct agreement with these raw EXFOR experimental data was also better than that achieved by ENDF/B-VII.1 evaluations (R<sup>2</sup> = 0.84, RMSE = 247.90 mb for available points) and default TALYS 2.0 calculations (R<sup>2</sup> = 0.75, RMSE = 312.59 mb) on the same test set data points. SHAP analysis quantitatively identified the contributions of input features (incident neutron energy, target/product nuclide properties, Q-value), revealing that EN and target characteristics are dominant. Furthermore, SHAP elucidated synergistic feature interactions, offering data-driven insights into the physical mechanisms influencing cross sections. This research demonstrates a robust, accurate, and interpretable ML framework for (n,2n) cross-section prediction, showcasing its capacity to further refine predictions based directly on experimental data, complementing established methods like ENDF and TALYS.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165789"},"PeriodicalIF":1.4,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522085","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 linear energy transfer on thermoluminescence properties of Eu-doped CaF2 ceramics 线性能量传递对铕掺杂CaF2陶瓷热释光性能的影响

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 : 2025-07-01 DOI: 10.1016/j.nimb.2025.165785

Kai Okazaki , Masanori Koshimizu , Yusuke Koba , Takumi Kato , Daisuke Nakauchi , Noriaki Kawaguchi , Takayuki Yanagida

引用次数: 0

Prediction of neutron production and energy spectrum by the inverse kinematic reaction between an incident 7Li3+ beam and a proton target in PHITS PHITS中入射7Li3+束与质子靶之间逆运动学反应的中子产生和能谱预测

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 : 2025-06-30 DOI: 10.1016/j.nimb.2025.165783

Toshiro Sakabe , Antonino Cannavo , Shunsuke Ikeda , Takeshi Kanesue , Madhawa Horana Gamage , Giovanni Ceccio , Kazumasa Takahashi , Masahiro Okamura

{"title":"Prediction of neutron production and energy spectrum by the inverse kinematic reaction between an incident 7Li3+ beam and a proton target in PHITS","authors":"Toshiro Sakabe , Antonino Cannavo , Shunsuke Ikeda , Takeshi Kanesue , Madhawa Horana Gamage , Giovanni Ceccio , Kazumasa Takahashi , Masahiro Okamura","doi":"10.1016/j.nimb.2025.165783","DOIUrl":"10.1016/j.nimb.2025.165783","url":null,"abstract":"<div><div>A neutron source using the inverse kinematic reaction between lithium and proton, p(<sup>7</sup>Li, n)<sup>7</sup>Be, achieves forward-directed neutrons, potentially enhancing neutron yield in the forward direction. Despite the advantage, no evaluated-cross-section data for this reaction can be used in Monte Carlo simulation codes, such as PHITS. To solve this problem, this study aims to evaluate the applicability of the user-defined cross-section data, Frag data, for p (<sup>7</sup>Li, n)<sup>7</sup>Be in PHITS. The simulations reproduced collisions between <sup>7</sup>Li<sup>3+</sup> ions and polypropylene targets. The Frag data was edited based on the JENDL-5 by utilizing the two-body collision kinematics. The neutron yield and angular distribution were investigated in the simulation. As a result, the forward neutron convergence with a reasonable neutron yield and energy spectrum was observed. The expected neutron yield in the forward 1-steradian area is 2.46 × 10<sup>10</sup>n/s when lithium-ion energy and current are 16.45 MeV and 0.1 mA.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165783"},"PeriodicalIF":1.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514266","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

Behaviors of lithium ions around LiCoO2 positive electrode/LATP solid electrolyte interfaces by charging and discharging cycles 锂离子在LiCoO2正极/LATP固体电解质界面周围的充放电行为

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 : 2025-06-27 DOI: 10.1016/j.nimb.2025.165786

R. Terasawa , B. Tsuchiya , K. Kataoka , T. Sasaki , N. Uno , H. Tsuchida

{"title":"Behaviors of lithium ions around LiCoO2 positive electrode/LATP solid electrolyte interfaces by charging and discharging cycles","authors":"R. Terasawa , B. Tsuchiya , K. Kataoka , T. Sasaki , N. Uno , H. Tsuchida","doi":"10.1016/j.nimb.2025.165786","DOIUrl":"10.1016/j.nimb.2025.165786","url":null,"abstract":"<div><div>The behaviors of lithium ions (Li<sup>+</sup>) around LiCoO<sub>2</sub> positive electrode/LATP solid electrolyte interfaces were investigated under cycles with various charging and discharging rates using the elastic recoil detection (ERD) technique. It was found that the Li concentration, <em>x</em>, in Li<em><sub>x</sub></em>CoO<sub>2</sub> reduced to approximately 0.25 by a fast charging rate of +1.56 mV/s. Subsequently, the value of <em>x</em> in Li<em><sub>x</sub></em>CoO<sub>2</sub> returned to the initial state (<em>x</em> = 1.00) by a slow discharging rate of −0.31 mV/s, except for being higher (<em>x</em> = 1.3) at the Au/LiCoO<sub>2</sub> and Li<em><sub>x</sub></em>CoO<sub>2</sub>/LATP interfaces; while it was approximately 0.52 with the fast discharging rate of −1.56 mV/s. The big difference of <em>x</em> in Li<em><sub>x</sub></em>CoO<sub>2</sub> by the slow and fast discharging rates may occur due to the Li accumulation rate at the LiCoO<sub>2</sub>/LATP interface, resulting in Li<sup>+</sup> ion diffusion to the negative electrode formed near the Pt/LATP interface.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165786"},"PeriodicalIF":1.4,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144489744","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