2022 IEEE International Conference on Plasma Science (ICOPS)最新文献_第9页

Development of a Fully Kinetic Particle Simulation Code For Coupled Plasma-Dust Transport 等离子体-尘埃耦合输运全动力学粒子模拟程序的开发

2022 IEEE International Conference on Plasma Science (ICOPS) Pub Date : 2022-05-22 DOI: 10.1109/ICOPS45751.2022.9813088

J. Zhao, D. Han

引用次数: 0

Evolutionary History of Atoms and Molecules in Reactive Laser-Produced Plasmas 反应性激光等离子体中原子和分子的进化史

2022 IEEE International Conference on Plasma Science (ICOPS) Pub Date : 2022-05-22 DOI: 10.1109/ICOPS45751.2022.9813306

E. Kautz, M. Phillips, A. Zelenyuk, S. S. Harilal

引用次数: 0

Short Pulse Laser Driven Shocks In Aluminum 铝中的短脉冲激光驱动冲击

2022 IEEE International Conference on Plasma Science (ICOPS) Pub Date : 2022-05-22 DOI: 10.1109/ICOPS45751.2022.9813018

S. E. Parsons, M. Armstrong, R. Turner, C. M. Childs, P. Grivickas, H. Radousky, J. Garay, F. Beg

引用次数: 0

Instabilities in E × B Discharges Relevant to Electric Propulsion Plasmas 与电推进等离子体有关的E × B放电的不稳定性

2022 IEEE International Conference on Plasma Science (ICOPS) Pub Date : 2022-05-22 DOI: 10.1109/ICOPS45751.2022.9813113

Aayushman Sharma, C. Promislow, J. Little

引用次数: 0

Assessment of Techniques for Determining Space-Charge Limited Current in Nonplanar Crossed-Field Diodes 非平面交叉场二极管空间电荷限制电流测定技术的评价

2022 IEEE International Conference on Plasma Science (ICOPS) Pub Date : 2022-05-22 DOI: 10.1109/ICOPS45751.2022.9813008

H. Wang, N. Harsha, A. Darr, A. Garner

引用次数: 0

Investigating the Formation of X-Pinches Using L-Shell Time Resolved Spectroscopy 利用l -壳层时间分辨光谱研究x -夹束的形成

2022 IEEE International Conference on Plasma Science (ICOPS) Pub Date : 2022-05-22 DOI: 10.1109/ICOPS45751.2022.9813186

A. Elshafiey, S. Pikuz, T. Shelkovenko, D. Hammer

{"title":"Investigating the Formation of X-Pinches Using L-Shell Time Resolved Spectroscopy","authors":"A. Elshafiey, S. Pikuz, T. Shelkovenko, D. Hammer","doi":"10.1109/ICOPS45751.2022.9813186","DOIUrl":"https://doi.org/10.1109/ICOPS45751.2022.9813186","url":null,"abstract":"The results of L-shell spectroscopic analyses of Hybrid X-pinches (HXPs) employing an X-ray streak camera with a 10ps time resolution are presented. The goal of these experiments is to determine the plasma properties throughout the formation process of the X-pinch bright X-ray spots (hotspots). The most studied radiation from hotspots is K-shell radiation, although as previously demonstrated using streak cameras, K-shell radiation begins with a strong continuum followed by emission lines, which occur during the moment of maximum compression and the expansion phase respectively. [1] L-shell radiation can occur earlier in time as the temperature and density requirements are substantially lower, hence they can be used to shine a light on the early compression phase before maximum compression is reached. The experiments were conducted using the XP pulsed power machine with a current of 250-350kA and a rise time of 50ns. A variety of diagnostics in addition to a streaked X-ray spectrograph, including silicon diodes and PCDs, which were used to examine the L and K-shell emissions in time using an 8Ghz oscilloscope.","PeriodicalId":175964,"journal":{"name":"2022 IEEE International Conference on Plasma Science (ICOPS)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121536197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Autofluorescence-Guided Removal of Bacterial Biofilms from Wound Surfaces Using Cold Atmospheric Pressure Plasma 利用冷常压等离子体自荧光引导去除伤口表面的细菌生物膜

2022 IEEE International Conference on Plasma Science (ICOPS) Pub Date : 2022-05-22 DOI: 10.1109/ICOPS45751.2022.9812961

M. Okebiorun, C. Waite, S. Clark, C. Oberbeck, D. Miller, K. Cornell, J. Browning

{"title":"Autofluorescence-Guided Removal of Bacterial Biofilms from Wound Surfaces Using Cold Atmospheric Pressure Plasma","authors":"M. Okebiorun, C. Waite, S. Clark, C. Oberbeck, D. Miller, K. Cornell, J. Browning","doi":"10.1109/ICOPS45751.2022.9812961","DOIUrl":"https://doi.org/10.1109/ICOPS45751.2022.9812961","url":null,"abstract":"Cold atmospheric pressure plasma (CAP) has shown potential to completely remove biofilms from surfaces [1] , [2] . The goal of this study is to employ the autofluorescence nature of bacterial biofilms to guide the removal of these biofilms from wounds using a CAP scalpel. Pseudomonas fluorescens biofilms which produce a green fluorescence under 405 nm UV light were grown on 12 chicken samples. The wound model (chicken tissue) is placed on a motorized X-Y stage with the plasma discharge device directly facing the sample. An image of the fluorescent biofilm region is captured using a Mightex BCN-B013-U monochrome camera and 560 nm green filter. The captured image then guides the X-Y stage to move such that only the fluorescent region is treated with CAP. CAP treatment of biofilm regions was carried out using a 1.37 lpm Ar/H 2 O plasma device with 39.5 x 54 mm dimension and a 1.5 mm tip. The discharge voltage and current are 3.24 kV and 1.2 mA respectively. The average speed of the plasma discharge over the substrate is 1 mm/s and the gap between the substrate and the discharge is 2 mm. To evaluate the action of CAP on the sample, before and after-fluorescent images were compared, CFU counts were taken, and 3D view of the effects were observed using a confocal microscope.","PeriodicalId":175964,"journal":{"name":"2022 IEEE International Conference on Plasma Science (ICOPS)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124601016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low Velocity Proton Stopping Power Measurements in Warm Dense Carbon 热致密碳中低速质子停止功率的测量

2022 IEEE International Conference on Plasma Science (ICOPS) Pub Date : 2022-05-22 DOI: 10.1109/icops45751.2022.9813238

S. Malko, W. Cayzac, V. Ospina-Bohórquez, K. Bhutwala, M. Bailly-Grandvaux, C. McGuffey, R. Fedosejevs, X. Vaisseau, A. Tauschwitz, J. I. Apiñaniz, D. De Luis, G. Gatti, M. Huault, J. A. Pérez-Hernández, S. Hu, A. White, L. Collins, K. Nichols, P. Neumayer, G. Faussurier, J. Vorberger, W. Fox, B. Frances Kraus, D. Schaeffer, G. Prestopino, C. Verona, J. Santos, D. Batani, F. Beg

引用次数: 0

Power Flow Effects of the Applied Axial Magnetic Field on Maglif Experiments at the Z Machine 轴向外加磁场对Z机磁振实验的功率流效应

2022 IEEE International Conference on Plasma Science (ICOPS) Pub Date : 2022-05-22 DOI: 10.1109/ICOPS45751.2022.9813052

D. Zimmer

{"title":"Power Flow Effects of the Applied Axial Magnetic Field on Maglif Experiments at the Z Machine","authors":"D. Zimmer","doi":"10.1109/ICOPS45751.2022.9813052","DOIUrl":"https://doi.org/10.1109/ICOPS45751.2022.9813052","url":null,"abstract":"The Z machine is a pulsed power generator capable of producing >20 MA current pulses and is used in a variety of HEDP experiments including x-ray production, materials science, and fusion energy [1] . A challenge, faced particularly by the Magnetized Liner Inertial Fusion (MagLIF) experiments, is that multi-MA current losses are routinely observed [2] . Current loss attributed to plasma formation in the double post-hole convolute has been a previous focus of inquiry [3] , though recent developments of velocimetry-based current diagnostics have enabled current measurements closer to the load [4] . This diagnostic capability enables the study of loss mechanisms interior to the convolute, where MagLIF’s applied axial magnetic field intersects with the final transmission line. Since the inner transmission lines on Z are insulated by the self-magnetic field generated from the current pulse, changes to the field topology could significantly increase shunted current. We explore the hypothesis that the applied axial magnetic field interferes with magnetic insulation and drives current to shunt prior to the experimental load. Analytical calculations, 2D fluid simulations, and experimental measurements will be presented.","PeriodicalId":175964,"journal":{"name":"2022 IEEE International Conference on Plasma Science (ICOPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129970107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electronic Stopping Power of Ions in Cold Targets and Warm Plasmas 离子在冷靶和热等离子体中的电子停止能力

2022 IEEE International Conference on Plasma Science (ICOPS) Pub Date : 2022-05-22 DOI: 10.1109/icops45751.2022.9813258

M. Gu, T. Mehlhorn, I. Golovkin

{"title":"Electronic Stopping Power of Ions in Cold Targets and Warm Plasmas","authors":"M. Gu, T. Mehlhorn, I. Golovkin","doi":"10.1109/icops45751.2022.9813258","DOIUrl":"https://doi.org/10.1109/icops45751.2022.9813258","url":null,"abstract":"We report on a new wide range electronic stopping power model that builds on the random phase approximation (RPA) dielectric response formalism of Wang, et al [1] and the local density approximation (LDA) with electronic density distributions calculated in an average atom model using the Flexible Atomic Code (FAC) [2] . The accuracy of this model has been greatly improved by implementing several extensions to RPA theory including a strong collision correction based on the binary collision theory of Zwicknagel for k>kmax [3] , a static local field correction [4] , an electron binding energy correction, and the Barkas effect [5] . The combined corrections bring our RPA-LDA proton stopping power results in cold targets into close agreement with experiments across the periodic table (PSTAR database). We will also show results for the stopping of ions in warm dense plasmas as compared with the published data. We will describe our plans to implement this accurate ion stopping power model into an efficient and robust framework for computing ion energy deposition in HED plasmas spanning a wide range of temperatures and densities and to incorporate them into the HELIOS-CR hydro code (Prism) and Chicago (Voss), as well as an open source standalone code.","PeriodicalId":175964,"journal":{"name":"2022 IEEE International Conference on Plasma Science (ICOPS)","volume":"1999 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128260562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1