{"title":"Cover Picture: Contrib. Plasma Phys. 04/2025","authors":"","doi":"10.1002/ctpp.202590007","DOIUrl":"https://doi.org/10.1002/ctpp.202590007","url":null,"abstract":"<p>Simulated trajectories of electrons bombarding the mask line, as well as incoming electrons from the surface above at different temperatures in the front view. The number of incident electrons in each panel is 25. The red dash indicates the profile of the mask line. Fig. 2 of the paper by Peng Zhang et al. https://doi.org/10.1002/ctpp.202400118\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 4","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.202590007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cover Picture: Contrib. Plasma Phys. 03/2025","authors":"","doi":"10.1002/ctpp.202590005","DOIUrl":"https://doi.org/10.1002/ctpp.202590005","url":null,"abstract":"<p>Diagram of beam distribution of the magnetic trap at 50 ns with different beam incidence velocities. Green points represent protons, red points represent electrons and blue lines represent magnetic induction lines. Part of Fig. 6 of the paper by Fang-Ping Wang et al. https://doi.org/10.1002/ctpp.202400040\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 3","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.202590005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cover Picture: Contrib. Plasma Phys. 02/2025","authors":"","doi":"10.1002/ctpp.202590003","DOIUrl":"https://doi.org/10.1002/ctpp.202590003","url":null,"abstract":"<p>Normalized vector potential (<i>a<sub>y</sub></i>), the produced wakefield (<i>E<sub>x</sub></i>), the momentum (<i>p<sub>x</sub></i>) and the electron density (<i>n<sub>x</sub></i>) for hydrogen atoms density/pre-ionized plasma density <i>n</i><sub>0</sub> = 0.01<i>n<sub>cr</sub></i> at time 810 fs for the field-ionized plasma (panel a) and the pre-ionized plasma (panel b) and normalized vector potential variation <i>a</i><sub>0</sub> = 1 (in panels a1 and b1), <i>a</i><sub>0</sub> = 2 (in panels a2 and b2), and <i>a</i><sub>0</sub> = 3 (in panels a3 and b3). Fig. 4 of the paper by Elnaz Khalilzadeh et al. https://doi.org/10.1002/ctpp.202400022\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 2","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.202590003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Particle-In-Cell (PIC) Simulations of Electron Focusing Heating Phenomena in Bilateral Ion Extraction Process","authors":"Xiaoyong Lu, Liangwei Liu","doi":"10.1002/ctpp.202400049","DOIUrl":"https://doi.org/10.1002/ctpp.202400049","url":null,"abstract":"<div>\u0000 \u0000 <p>Particle-in-cell simulations of bilateral ion extraction process are carried out for electron focusing heating phenomenon in this work. The mechanisms and characteristics of the negative heating effect are simulated and analyzed. Then influences of several factors on electron heating degree and ion collection ratio are provided numerically. Finally, relations between the negative heating effect and extraction instability phenomenon are discussed and an approach to mitigate the heating effect is given.</p>\u0000 </div>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 4","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871677","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}
{"title":"Coupled Electric-Thermal Damage Model for Lightning Strikes on Buried Pipeline","authors":"Xiao Jin, Pingping Rao, Weikang Feng, Jifei Cui, Sanjay Nimbalkar, Qingsheng Chen","doi":"10.1002/ctpp.202400104","DOIUrl":"https://doi.org/10.1002/ctpp.202400104","url":null,"abstract":"<div>\u0000 \u0000 <p>A coupled electrothermal damage theory model for pipelines is proposed to assess the failure behavior of buried pipelines under lightning strikes. This article considers local thermal nonequilibrium (LTNE) conditions in the soil–water porous medium and the nonlinear characteristics of lightning functions. The calculation results show that the proposed theoretical model has better applicability and accuracy compared with previous models. Parametric analysis shows that under lightning conditions of <i>I</i><sub>m</sub> = 20 kA and <i>T</i><sub>1</sub><i>/T</i><sub>2</sub> = 1.2/50 μs, the maximum local temperature of the soil around the pipeline can reach 2160 K, leading to pipeline breakdown. Metal pipelines are shown to be more effective in conducting charges, which alters the electric field distribution in the soil and impacts the formation of plasma channels. The half-peak value of the lightning waveform has a significant impact on pipeline breakdown, and its increase will increase the risk of pipeline breakdown gradually. When considering LTNE conditions, the change in the pipeline surface temperature becomes more pronounced. Under 8/30 and 8/40 μs lightning waveforms, the pipeline surface temperature is approximately 150 and 550 K higher, respectively, compared with the thermal equilibrium conditions. The thermal conductivity and porosity of backfill soil can also affect the thermal damage of lightning-struck pipelines. With clay filling, the highest pipeline surface temperature can reach 2590 K, while with fine sand and coarse sand, it is 1980 and 1510 K, respectively. The pipeline lightning disaster model proposed in this article has engineering significance for the investigation of pipeline lightning failure and disaster prevention mechanisms.</p>\u0000 </div>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 4","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871454","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}
{"title":"Cover Picture: Contrib. Plasma Phys. 01/2025","authors":"","doi":"10.1002/ctpp.202590001","DOIUrl":"https://doi.org/10.1002/ctpp.202590001","url":null,"abstract":"<p>Plot of temperature inside the rock as a function of time at 70 kV. Fig. 8 of the paper by X. Zhu et al. https://onlinelibrary.wiley.com/doi/10.1002/ctpp.202400058<figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.202590001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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