Nuclear Science and Techniques最新文献_第8页

One-neutron stripping process in the 209Bi(6Li, 5Li)210Bi* reaction reaction 209Bi(6Li, 5Li)210Bi* 反应中的单中子剥离过程

IF 2.8 1区物理与天体物理

Nuclear Science and Techniques Pub Date : 2024-06-18 DOI: 10.1007/s41365-024-01462-w

Gao-Long Zhang, Zhen-Wei Jiao, Guang-Xin Zhang, E. N. Cardozo, B. Paes, Shi-Peng Hu, Jian-Qiang Qian, Daniele Mengoni, Wei-Wei Qu, Cong-Bo Li, Yun Zheng, Huan-Qiao Zhang, Hui-Bin Sun, Nan Wang, Chun-Lei Zhang, J. J. Valiente-Dobón, D. Testov, M. Mazzocco, A. Gozzelino, C. Parascandolo, D. Pierroutsakou, M. La Commara, A. Goasduff, D. Bazzacco, D. R. Napoli, F. Galtarossa, F. Recchia, A. Illana, S. Bakes, I. Zanon, S. Aydin, G. de Angelis, M. Siciliano, R. Menegazzo, S. M. Lenzi, S. Akkoyun, L. F. Canto, J. Lubian

{"title":"One-neutron stripping process in the 209Bi(6Li, 5Li)210Bi* reaction reaction","authors":"Gao-Long Zhang, Zhen-Wei Jiao, Guang-Xin Zhang, E. N. Cardozo, B. Paes, Shi-Peng Hu, Jian-Qiang Qian, Daniele Mengoni, Wei-Wei Qu, Cong-Bo Li, Yun Zheng, Huan-Qiao Zhang, Hui-Bin Sun, Nan Wang, Chun-Lei Zhang, J. J. Valiente-Dobón, D. Testov, M. Mazzocco, A. Gozzelino, C. Parascandolo, D. Pierroutsakou, M. La Commara, A. Goasduff, D. Bazzacco, D. R. Napoli, F. Galtarossa, F. Recchia, A. Illana, S. Bakes, I. Zanon, S. Aydin, G. de Angelis, M. Siciliano, R. Menegazzo, S. M. Lenzi, S. Akkoyun, L. F. Canto, J. Lubian","doi":"10.1007/s41365-024-01462-w","DOIUrl":"https://doi.org/10.1007/s41365-024-01462-w","url":null,"abstract":"One-neutron stripping process between (^{6})Li and (^{209})Bi was studied at 28, 30, and 34 MeV using the in-beam (gamma )-ray spectroscopy method. The (gamma )–(gamma ) coincident analysis clearly identified two (gamma )-rays feeding the ground and long-lived isomeric states, which were employed to determine the cross section. The one-neutron stripping cross sections were similar to the cross sections of complete fusion in the (^6)Li+(^{209})Bi system, but the one-neutron stripping cross sections decreased more gradually at the sub-barrier region. A coupled-reaction-channel calculation was performed to study the detailed reaction mechanism of the one-neutron stripping process in (^6)Li. The calculations indicated that the first excited state of (^5)Li is critical in the actual one-neutron transfer mechanism, and the valence proton of (^{209}textrm{Bi}) can be excited to the low-lying excited state in ((^{6}textrm{Li}),(^{5}textrm{Li})) reaction, unlike in the (d,p) reaction.\u0000","PeriodicalId":19177,"journal":{"name":"Nuclear Science and Techniques","volume":"157 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141511955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Transverse mode-coupling instability with longitudinal impedance 具有纵向阻抗的横向模式耦合不稳定性

IF 2.8 1区物理与天体物理

Nuclear Science and Techniques Pub Date : 2024-06-18 DOI: 10.1007/s41365-024-01472-8

Hai-Sheng Xu, Chun-Tao Lin, Na Wang, Jing-Ye Xu, Yuan Zhang

引用次数: 0

Cr-induced fusion reactions to synthesize superheavy elements 铬诱导聚变反应合成超重元素

IF 2.8 1区物理与天体物理

Nuclear Science and Techniques Pub Date : 2024-06-03 DOI: 10.1007/s41365-024-01449-7

S. Madhu, H. C. Manjunatha, N. Sowmya, B. M. Rajesh, L. Seenappa, R. S. Susheela

引用次数: 0

Improved nuclear mass formula with an additional term from the Fermi gas model 利用费米气体模型的附加项改进核质量公式

IF 2.8 1区物理与天体物理

Nuclear Science and Techniques Pub Date : 2024-06-03 DOI: 10.1007/s41365-024-01450-0

Xiao-Yu Xu, Li Deng, Ai-Xi Chen, Hang Yang, Amir Jalili, Han-Kui Wang

引用次数: 0

Ultrahigh spatiotemporal resolution beam signal reconstruction with bunch phase compensation 带束相位补偿的超高时空分辨率光束信号重建

IF 2.8 1区物理与天体物理

Nuclear Science and Techniques Pub Date : 2024-06-03 DOI: 10.1007/s41365-024-01444-y

You-Ming Deng, Yong-Bin Leng, Xing-Yi Xu, Jian Chen, Yi-Mei Zhou

{"title":"Ultrahigh spatiotemporal resolution beam signal reconstruction with bunch phase compensation","authors":"You-Ming Deng, Yong-Bin Leng, Xing-Yi Xu, Jian Chen, Yi-Mei Zhou","doi":"10.1007/s41365-024-01444-y","DOIUrl":"https://doi.org/10.1007/s41365-024-01444-y","url":null,"abstract":"Various electromagnetic signals are excited by the beam in the acceleration and beam-diagnostic elements of a particle accelerator. It is important to obtain time-domain waveforms of these signals with high temporal resolution for research, such as the study of beam–cavity interactions and bunch-by-bunch parameter measurements. Therefore, a signal reconstruction algorithm with ultrahigh spatiotemporal resolution and bunch phase compensation based on equivalent sampling is proposed in this paper. Compared with traditional equivalent sampling, the use of phase compensation and setting the bunch signal zero-crossing point as the time reference can construct a more accurate reconstructed signal. The basic principles of the method, simulation, and experimental comparison are also introduced. Based on the beam test platform of the Shanghai Synchrotron Radiation Facility (SSRF) and the method of experimental verification, the factors that affect the reconstructed signal quality are analyzed and discussed, including the depth of the sampled data, quantization noise of analog-to-digital converter, beam transverse oscillation, and longitudinal oscillation. The results of the beam experiments show that under the user operation conditions of the SSRF, a beam excitation signal with an amplitude uncertainty of 2% can be reconstructed.","PeriodicalId":19177,"journal":{"name":"Nuclear Science and Techniques","volume":"92 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

High-resolution neutronics model for 238Pu production in high-flux reactors 高通量反应堆生产 238Pu 的高分辨率中子模型

IF 2.8 1区物理与天体物理

Nuclear Science and Techniques Pub Date : 2024-06-03 DOI: 10.1007/s41365-024-01461-x

Qing-Quan Pan, Qing-Fei Zhao, Lian-Jie Wang, Bang-Yang Xia, Yun Cai, Jin-Biao Xiong, Xiao-Jing Liu

{"title":"High-resolution neutronics model for 238Pu production in high-flux reactors","authors":"Qing-Quan Pan, Qing-Fei Zhao, Lian-Jie Wang, Bang-Yang Xia, Yun Cai, Jin-Biao Xiong, Xiao-Jing Liu","doi":"10.1007/s41365-024-01461-x","DOIUrl":"https://doi.org/10.1007/s41365-024-01461-x","url":null,"abstract":"We proposed and compared three methods (filter burnup, single energy burnup, and burnup extremum analysis) to build a high-resolution neutronics model for 238Pu production in high-flux reactors. The filter burnup and single energy burnup methods have no theoretical approximation and can achieve a spectrum resolution of up to ~ 1 eV, thereby constructing the importance curve and yield curve of the full energy range. The burnup extreme analysis method combines the importance and yield curves to consider the influence of irradiation time on production efficiency, thereby constructing extreme curves. The three curves, which quantify the transmutation rate of the nuclei in each energy region, are of physical significance because they have similar distributions. A high-resolution neutronics model for 238Pu production was established based on these three curves, and its universality and feasibility were proven. The neutronics model can guide the neutron spectrum optimization and improve the yield of 238Pu by up to 18.81%. The neutronics model revealed the law of nuclei transmutation in all energy regions with high spectrum resolution, thus providing theoretical support for high-flux reactor design and irradiation production of 238Pu.","PeriodicalId":19177,"journal":{"name":"Nuclear Science and Techniques","volume":"39 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Research on a Monte Carlo global variance reduction method based on an automatic importance sampling method 基于自动重要度抽样法的蒙特卡罗全局方差缩小法研究

IF 2.8 1区物理与天体物理

Nuclear Science and Techniques Pub Date : 2024-05-31 DOI: 10.1007/s41365-024-01404-6

Yi-Sheng Hao, Zhen Wu, Shen-Shen Gao, Rui Qiu, Hui Zhang, Jun-Li Li

{"title":"Research on a Monte Carlo global variance reduction method based on an automatic importance sampling method","authors":"Yi-Sheng Hao, Zhen Wu, Shen-Shen Gao, Rui Qiu, Hui Zhang, Jun-Li Li","doi":"10.1007/s41365-024-01404-6","DOIUrl":"https://doi.org/10.1007/s41365-024-01404-6","url":null,"abstract":"Global variance reduction is a bottleneck in Monte Carlo shielding calculations. The global variance reduction problem requires that the statistical error of the entire space is uniform. This study proposed a grid-AIS method for the global variance reduction problem based on the AIS method, which was implemented in the Monte Carlo program MCShield. The proposed method was validated using the VENUS-III international benchmark problem and a self-shielding calculation example. The results from the VENUS-III benchmark problem showed that the grid-AIS method achieved a significant reduction in the variance of the statistical errors of the MESH grids, decreasing from 1.08 × 10–2 to 3.84 × 10–3, representing a 64.00% reduction. This demonstrates that the grid-AIS method is effective in addressing global issues. The results of the self-shielding calculation demonstrate that the grid-AIS method produced accurate computational results. Moreover, the grid-AIS method exhibited a computational efficiency approximately one order of magnitude higher than that of the AIS method and approximately two orders of magnitude higher than that of the conventional Monte Carlo method.","PeriodicalId":19177,"journal":{"name":"Nuclear Science and Techniques","volume":"413 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Nondestructive and active interrogation system for special nuclear material: proof of principle and initial results 特殊核材料无损主动询问系统：原理验证和初步结果

IF 2.8 1区物理与天体物理

Nuclear Science and Techniques Pub Date : 2024-05-31 DOI: 10.1007/s41365-024-01458-6

Mahmoud Bakr, Kai Masuda, Yoshiyuki Takahashi, Tsuyoshi Misawa, Norio Yamakawa, Tomas Scott

{"title":"Nondestructive and active interrogation system for special nuclear material: proof of principle and initial results","authors":"Mahmoud Bakr, Kai Masuda, Yoshiyuki Takahashi, Tsuyoshi Misawa, Norio Yamakawa, Tomas Scott","doi":"10.1007/s41365-024-01458-6","DOIUrl":"https://doi.org/10.1007/s41365-024-01458-6","url":null,"abstract":"Herein, we employ the threshold energy neutron analysis (TENA) technique to introduce the world's first active interrogation system to detect special nuclear materials (SNMs), including U-235 and Pu-239. The system utilizes a DD neutron generator based on inertial electrostatic confinement (IEC) to interrogate suspicious objects. To detect secondary neutrons produced during fission reactions induced in SNMs, a tensioned metastable fluid detector (TMFD) is employed. The current status of the system's development is reported in this paper, accompanied by the results from experiments conducted to detect 10 g of highly enriched uranium (HEU). Notably, the experimental findings demonstrate a distinct difference in the count rates of measurements with and without HEU. This difference in count rates surpasses two times the standard deviation, indicating a confidence level of more than 96% for identifying the presence of HEU. The paper presents and extensively discusses the proof-of-principle experimental results, along with the system's planned trajectory.","PeriodicalId":19177,"journal":{"name":"Nuclear Science and Techniques","volume":"76 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Heavy ion energy influence on multiple-cell upsets in small sensitive volumes: from standard to high energies 重离子能量对小灵敏体积内多胞扰动的影响：从标准能量到高能量

IF 2.8 1区物理与天体物理

Nuclear Science and Techniques Pub Date : 2024-05-30 DOI: 10.1007/s41365-024-01427-z

Yang Jiao, Li-Hua Mo, Jin-Hu Yang, Yu-Zhu Liu, Ya-Nan Yin, Liang Wang, Qi-Yu Chen, Xiao-Yu Yan, Shi-Wei Zhao, Bo Li, You-Mei Sun, Pei-Xiong Zhao, Jie Liu

{"title":"Heavy ion energy influence on multiple-cell upsets in small sensitive volumes: from standard to high energies","authors":"Yang Jiao, Li-Hua Mo, Jin-Hu Yang, Yu-Zhu Liu, Ya-Nan Yin, Liang Wang, Qi-Yu Chen, Xiao-Yu Yan, Shi-Wei Zhao, Bo Li, You-Mei Sun, Pei-Xiong Zhao, Jie Liu","doi":"10.1007/s41365-024-01427-z","DOIUrl":"https://doi.org/10.1007/s41365-024-01427-z","url":null,"abstract":"The 28 nm process has a high cost-performance ratio and has gradually become the standard for the field of radiation-hardened devices. However, owing to the minimum physical gate length of only 35 nm, the physical area of a standard 6T SRAM unit is approximately (0.16,upmu hbox{m}^{2}), resulting in a significant enhancement of multi-cell charge-sharing effects. Multiple-cell upsets (MCUs) have become the primary physical mechanism behind single-event upsets (SEUs) in advanced nanometer node devices. The range of ionization track effects increases with higher ion energies, and spacecraft in orbit primarily experience SEUs caused by high-energy ions. However, ground accelerator experiments have mainly obtained low-energy ion irradiation data. Therefore, the impact of ion energy on the SEU cross section, charge collection mechanisms, and MCU patterns and quantities in advanced nanometer devices remains unclear. In this study, based on the experimental platform of the Heavy Ion Research Facility in Lanzhou, low- and high-energy heavy-ion beams were used to study the SEUs of 28 nm SRAM devices. The influence of ion energy on the charge collection processes of small-sensitive-volume devices, MCU patterns, and upset cross sections was obtained, and the applicable range of the inverse cosine law was clarified. The findings of this study are an important guide for the accurate evaluation of SEUs in advanced nanometer devices and for the development of radiation-hardening techniques.","PeriodicalId":19177,"journal":{"name":"Nuclear Science and Techniques","volume":"25 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Efficient and selective removal of Pb(II) from landfill leachate using L-serine-modified polyethylene/polypropylene nonwoven fabric synthesized via radiation grafting technique 使用通过辐射接枝技术合成的 L-丝氨酸改性聚乙烯/聚丙烯非织造布高效、选择性地去除垃圾填埋场渗滤液中的铅(II)

IF 2.8 1区物理与天体物理

Nuclear Science and Techniques Pub Date : 2024-05-24 DOI: 10.1007/s41365-024-01440-2

Xin-Xin Feng, Cheng Li, Xuan-Zhi Mao, Wan-Ning Ren, Yang Gao, Yu-Long He, Zhe Xing, Rong Li, Guo-Zhong Wu

{"title":"Efficient and selective removal of Pb(II) from landfill leachate using L-serine-modified polyethylene/polypropylene nonwoven fabric synthesized via radiation grafting technique","authors":"Xin-Xin Feng, Cheng Li, Xuan-Zhi Mao, Wan-Ning Ren, Yang Gao, Yu-Long He, Zhe Xing, Rong Li, Guo-Zhong Wu","doi":"10.1007/s41365-024-01440-2","DOIUrl":"https://doi.org/10.1007/s41365-024-01440-2","url":null,"abstract":"In this study, to efficiently remove Pb(II) from aqueous environments, a novel L-serine-modified polyethylene/polypropylene nonwoven fabric sorbent (NWF-serine) was fabricated through the radiation grafting of glycidyl methacrylate and subsequent L-serine modification. The effect of the absorbed dose was investigated in the range of 5–50 kGy. NWF-serine was characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, and scanning electron microscopy. Batch adsorption tests were conducted to investigate the influences of pH, adsorption time, temperature, initial concentration, and sorbent dosage on the Pb(II) adsorption performance of NWF-serine. The results indicated that Pb(II) adsorption onto NWF-serine was an endothermic process, following the pseudo-second-order kinetic model and Langmuir isotherm model. The saturated adsorption capacity was 198.1 mg/g. NWF-serine exhibited Pb(II) removal rates of 99.8% for aqueous solutions with initial concentrations of 100 mg/L and 82.1% for landfill leachate containing competitive metal ions such as Cd, Cu, Ni, Mn, and Zn. Furthermore, NWF-serine maintained 86% of its Pb(II) uptake after five use cycles. The coordination of the carboxyl and amino groups with Pb(II) was confirmed using X-ray photoelectron spectroscopy and extended X-ray absorption fine structure analysis.","PeriodicalId":19177,"journal":{"name":"Nuclear Science and Techniques","volume":"2 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141152969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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