发布求助
文献互助 智能选刊 最新文献

Laser and Particle Beams最新文献

筛选
英文 中文
Interaction of Dust-Acoustic Shock Waves in a Magnetized Dusty Plasma under the Influence of Polarization Force 极化力作用下磁化尘埃等离子体中尘埃-声激波的相互作用
IF 0.9 4区 物理与天体物理
Laser and Particle Beams Pub Date : 2021-01-20 DOI: 10.1155/2021/6679085
N. S. Saini, Kuldeep Singh, Papihra Sethi
{"title":"Interaction of Dust-Acoustic Shock Waves in a Magnetized Dusty Plasma under the Influence of Polarization Force","authors":"N. S. Saini, Kuldeep Singh, Papihra Sethi","doi":"10.1155/2021/6679085","DOIUrl":"https://doi.org/10.1155/2021/6679085","url":null,"abstract":"The interaction of dust-acoustic (DA) shock waves in a magnetized dusty plasma under the influence of nonextensively modified polarization force is investigated. The plasma model consists of negatively charged dust, Maxwellian electrons, nonextensive ions, and polarization force. In this investigation, we have derived the expression of polarization force in the presence of nonextensive ions and illustrated the head-on collision between two DA shock waves. The extended Poincare–Lighthill–Kuo (PLK) method is employed to obtain the two-sided Korteweg–de Vries–Burgers (KdVB) equations and phase shifts of two shock waves. The trajectories and phase shifts of negative potential dust-acoustic shock waves after collision are examined. The combined effects of various physical parameters such as polarization force, nonextensivity of ions, viscosity of dust, and magnetic field strength on the phase shifts of DA shock waves have been studied. The present investigation might be useful to study the process of collision of nonlinear structures in space dusty plasma such as planetary rings where non-Maxwellian particles such as nonextensive ions, negatively charged dust, and electrons are present.","PeriodicalId":49925,"journal":{"name":"Laser and Particle Beams","volume":"36 1","pages":"1-8"},"PeriodicalIF":0.9,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82070153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 2
Formation of H3O+ in the Ionization and Fragmentation of Ethanol Induced by Electron Beam Irradiation 电子束辐照诱导乙醇电离破碎过程中h30 +的形成
IF 0.9 4区 物理与天体物理
Laser and Particle Beams Pub Date : 2021-01-20 DOI: 10.1155/2021/6616439
Chao Ma, Jiaqi Zhou, Enliang Wang, Tao Yang, Zhongfeng Xu, Shaokui Jia, A. Dorn, X. Ren
{"title":"Formation of H3O+ in the Ionization and Fragmentation of Ethanol Induced by Electron Beam Irradiation","authors":"Chao Ma, Jiaqi Zhou, Enliang Wang, Tao Yang, Zhongfeng Xu, Shaokui Jia, A. Dorn, X. Ren","doi":"10.1155/2021/6616439","DOIUrl":"https://doi.org/10.1155/2021/6616439","url":null,"abstract":"The single ionization and dissociation of ethanol molecules induced by low-energy electrons ( ) are investigated using multiparticle coincident momentum spectroscopy. By detecting two outgoing electrons ( and ) and one fragment ion in coincidence, we obtain the energy deposition ( ) during electron ionization of the molecule, i.e., the binding energy spectra, for production of the different ionic fragments C2H5OH+, C2H4OH+, COH+, and H3O+. These data allow us to study the ionization channels for different ionic products. In particular, we focus on H3O+ as a product of double hydrogen migration. It is found that this channel mainly originates from the ionization of outer-valance orbitals (3a , 10a , 2a , 9a , 8a , 1a , and 7a ). Additionally, there are minor contributions from the inner-valence orbitals such as 6a , 5a , and 4a . Quantum chemistry calculations show two fragmentation pathways: concerted and sequential processes for formation of H3O+.","PeriodicalId":49925,"journal":{"name":"Laser and Particle Beams","volume":"20 1","pages":"1-6"},"PeriodicalIF":0.9,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77388489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
Energy Dependency of Proton-Induced Outer-Shell Multiple Ionization for 48Cd and 49In 质子诱导48Cd和49In外层多重电离的能量依赖性
IF 0.9 4区 物理与天体物理
Laser and Particle Beams Pub Date : 2021-01-20 DOI: 10.1155/2021/6653739
Xianming Zhou, Jing Wei, R. Cheng, Yanhong Chen, Yong-tao Zhao, Xiao’an Zhang
{"title":"Energy Dependency of Proton-Induced Outer-Shell Multiple Ionization for 48Cd and 49In","authors":"Xianming Zhou, Jing Wei, R. Cheng, Yanhong Chen, Yong-tao Zhao, Xiao’an Zhang","doi":"10.1155/2021/6653739","DOIUrl":"https://doi.org/10.1155/2021/6653739","url":null,"abstract":"L subshell X-rays of 48Cd and 49In have been measured for the impact of protons with energies from 75 to 250 keV. Obviously, it is found that Lγ2 (abbreviation Lγ2,3 for 48Cd and Lγ2,3,4 for 49In) X-ray emission is enhanced in comparison with Lγ1 X-ray emission. The relative intensity ratios of Lγ2 to Lγ1 X-ray are larger than the atomic data and increase with decreasing proton energy. This is caused by the multiple ionization of outer-shell electrons. To verify this explanation, the enhancements for relative intensity ratio of Lι and Lβ2 to Lα X-ray in experiments are discussed, and the direct ionization cross sections of 4d, 5s, and 5p electrons are calculated using BEA theory.","PeriodicalId":49925,"journal":{"name":"Laser and Particle Beams","volume":"1 1","pages":"1-7"},"PeriodicalIF":0.9,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83101473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Ultrafast High-Energy Electron Radiography Application in Magnetic Field Delicate Structure Measurement 超快高能电子射线照相在磁场精细结构测量中的应用
IF 0.9 4区 物理与天体物理
Laser and Particle Beams Pub Date : 2021-01-19 DOI: 10.1155/2021/6683245
J. H. Xiao, Y. C. Du, S. Zhang, Y. Zhao
{"title":"Ultrafast High-Energy Electron Radiography Application in Magnetic Field Delicate Structure Measurement","authors":"J. H. Xiao, Y. C. Du, S. Zhang, Y. Zhao","doi":"10.1155/2021/6683245","DOIUrl":"https://doi.org/10.1155/2021/6683245","url":null,"abstract":"Transient electromagnetic field plays very important roles in the evolution of high-energy-density matter or laser plasma. Now, a new design is proposed in this paper to diagnose the transient magnetic field, using relativistic electron bunch as a probe based on high-energy electron radiography. And based on this scheme, the continuous distribution of magnetic strength field can be snapshotted. For 1 mm thick quadrupole magnet model measured by 50 MeV probe electron beams, the simulation result indicates that this diagnosis has spatial resolution better than 4 microns and high measurement accuracy for strong magnetic strength and high magnetic gradient field no matter whether the magnetic interaction is focusing or defocusing for the range from -510 T\u0000 \u0000 \u0000 \u0000 \u0000 ∗\u0000 \u0000 \u0000 \u0000 μm to 510 T\u0000 \u0000 \u0000 \u0000 \u0000 ∗\u0000 \u0000 \u0000 \u0000 μm.","PeriodicalId":49925,"journal":{"name":"Laser and Particle Beams","volume":"50 3 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89210613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
Comparison of Influence of the Fast Atom Beam and Ion Beam on the Metal Target 快原子束与离子束对金属靶的影响比较
IF 0.9 4区 物理与天体物理
Laser and Particle Beams Pub Date : 2021-01-12 DOI: 10.1155/2021/6630259
A. Pushkarev, A. Prima, V. Myshkin, N. Chistyakova, V. Ezhov
{"title":"Comparison of Influence of the Fast Atom Beam and Ion Beam on the Metal Target","authors":"A. Pushkarev, A. Prima, V. Myshkin, N. Chistyakova, V. Ezhov","doi":"10.1155/2021/6630259","DOIUrl":"https://doi.org/10.1155/2021/6630259","url":null,"abstract":"A comparative analysis of a fast atom beam and ion beam effect on a metal target in the binary collision model is performed. Irradiation by fast atoms has been shown to more closely correspond to neutron radiation in a nuclear reactor, in terms of the primary knocked-on atom spectrum and the efficiency and mechanism of the radiation defect formation. It was found that upon irradiation by fast carbon atoms with an energy of 0.2-0.3 MeV, the average number of radiation defects in the displacement cascade of one atom is four to five times higher than the calculated values using the SRIM program for ions with the same energy. It is shown that during penetration in the target, the probability of ionization of atoms with energies less than 0.4 MeV is negligible.","PeriodicalId":49925,"journal":{"name":"Laser and Particle Beams","volume":"21 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73525021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
Determination of the Pulsed Electron Beam Spectrum by Current and Voltage Oscillograms 用电流和电压示波图测定脉冲电子束能谱
IF 0.9 4区 物理与天体物理
Laser and Particle Beams Pub Date : 2021-01-07 DOI: 10.1155/2021/8815697
A. Pushkarev, A. Prima, V. Ezhov, I. Miloichikova, E. Petrenko
{"title":"Determination of the Pulsed Electron Beam Spectrum by Current and Voltage Oscillograms","authors":"A. Pushkarev, A. Prima, V. Ezhov, I. Miloichikova, E. Petrenko","doi":"10.1155/2021/8815697","DOIUrl":"https://doi.org/10.1155/2021/8815697","url":null,"abstract":"The algorithm and results of calculating the integral and differential energy spectra of a pulsed electron beam (350–500 keV, 80 ns), generated by direct-action accelerators, are presented. The electron spectrum was calculated using the oscillograms of the accelerating voltage, electron current, total current of the diode, and the one-dimensional Child–Langmuir (1D CL) ratio. It was found that the discrepancy in the integrated electron beam energy spectrum, when measured using the total current in the diode and using the electron beam current, did not exceed 15% for 80%–95% of the electrons generated in a diode with graphite, carbon fabric, and multipoint cathodes. When calculating the electron spectrum using the 1D CL, the error was much higher.","PeriodicalId":49925,"journal":{"name":"Laser and Particle Beams","volume":"51 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76549961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 4
Numerical Model 数值模型
IF 0.9 4区 物理与天体物理
Laser and Particle Beams Pub Date : 2021-01-01 DOI: 10.1007/978-3-642-41714-6_140965
T. Wischeropp
{"title":"Numerical Model","authors":"T. Wischeropp","doi":"10.1007/978-3-642-41714-6_140965","DOIUrl":"https://doi.org/10.1007/978-3-642-41714-6_140965","url":null,"abstract":"","PeriodicalId":49925,"journal":{"name":"Laser and Particle Beams","volume":"360 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76433518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Industrial Relevance of Results 结果的行业相关性
IF 0.9 4区 物理与天体物理
Laser and Particle Beams Pub Date : 2021-01-01 DOI: 10.1007/978-3-662-64585-7_6
T. Wischeropp
{"title":"Industrial Relevance of Results","authors":"T. Wischeropp","doi":"10.1007/978-3-662-64585-7_6","DOIUrl":"https://doi.org/10.1007/978-3-662-64585-7_6","url":null,"abstract":"","PeriodicalId":49925,"journal":{"name":"Laser and Particle Beams","volume":"16 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79183599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Effect of Laser Beam Profile on SLM Process 激光束轮廓对SLM工艺的影响
IF 0.9 4区 物理与天体物理
Laser and Particle Beams Pub Date : 2021-01-01 DOI: 10.1007/978-3-662-64585-7_5
T. Wischeropp
{"title":"Effect of Laser Beam Profile on SLM Process","authors":"T. Wischeropp","doi":"10.1007/978-3-662-64585-7_5","DOIUrl":"https://doi.org/10.1007/978-3-662-64585-7_5","url":null,"abstract":"","PeriodicalId":49925,"journal":{"name":"Laser and Particle Beams","volume":"60 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84648723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
Experimental Set-Up 试验装置
IF 0.9 4区 物理与天体物理
Laser and Particle Beams Pub Date : 2021-01-01 DOI: 10.1007/978-3-662-64585-7_4
T. Wischeropp
{"title":"Experimental Set-Up","authors":"T. Wischeropp","doi":"10.1007/978-3-662-64585-7_4","DOIUrl":"https://doi.org/10.1007/978-3-662-64585-7_4","url":null,"abstract":"","PeriodicalId":49925,"journal":{"name":"Laser and Particle Beams","volume":"35 6 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77878353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信