IEEE Transactions on Plasma Science最新文献_第9页

Short-Pulse Width High-Voltage Bipolar Impulse Generator for DBD-Based 222 nm Excimer Source 用于基于 DBD 的 222 纳米准分子源的短脉冲宽度高电压双极脉冲发生器

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2024-07-31 DOI: 10.1109/TPS.2024.3432192

Subhash Kumar Ram;Brijendra Kumar Verma;Vivek Kumar Saini;Ram Prakash Lamba;Pankaj Kumar Das;Sukumar Mishra;Sachin Devassy;Udit Narayan Pal

{"title":"Short-Pulse Width High-Voltage Bipolar Impulse Generator for DBD-Based 222 nm Excimer Source","authors":"Subhash Kumar Ram;Brijendra Kumar Verma;Vivek Kumar Saini;Ram Prakash Lamba;Pankaj Kumar Das;Sukumar Mishra;Sachin Devassy;Udit Narayan Pal","doi":"10.1109/TPS.2024.3432192","DOIUrl":"10.1109/TPS.2024.3432192","url":null,"abstract":"In this article, the design and development of a fast rise time high-voltage bipolar impulse generator (HV-BIG) system for a dielectric barrier discharge (DBD)-based coaxial 222 nm excimer radiation source has been carried out for effective plasma generation. Full bridge topology utilizing silicon carbide (SiC) metal-oxide-semiconductor field-effect transistors (MOSFETs) along with a step-up transformer has been realized for the development of the HV-BIG system. Sectionalized windings were designed to realize the primary and secondary winding of high-voltage transformers. The fabricated high-voltage transformer features a uniform distribution of the primary and secondary windings to minimize leakage inductance. A control algorithm has been implemented to generate 180° phase-shifted gating pulses with suitable pulse repetition frequency and pulsewidth for the full bridge converter. The developed laboratory prototype of the HV-BIG system was experimentally verified with the DBD-based Krypton/Chlorine (Kr/Cl2) excilamp to generate 222 nm radiation with output pulse voltage ranging from ±2.85 to ±8.25 kV. The HV-BIG system has been experimentally tested to generate variable high-voltage bipolar pulse output voltage with a pulse repetition frequency of 31.5 kHz and tunable at two distinct pulsewidth of 1.0 and \u0000<inline-formula> <tex-math>$1.2~mu $ </tex-math></inline-formula>\u0000s.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141865615","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

Model of Ambipolar Processes in Cumulative-Dissipative Self-Focusing Structures in Plasma—Part 3: Classification of Ambipolar Diffusions in Plasma With Current in the First Approximation According to the Vysikaylo’s Perturbation Theory 等离子体中累积-扩散自聚焦结构中的安比极过程模型--第 3 部分：根据维西卡洛扰动理论对等离子体中带有电流的第一近似安比极扩散进行分类

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2024-07-30 DOI: 10.1109/TPS.2024.3350370

Philipp I. Vysikaylo

{"title":"Model of Ambipolar Processes in Cumulative-Dissipative Self-Focusing Structures in Plasma—Part 3: Classification of Ambipolar Diffusions in Plasma With Current in the First Approximation According to the Vysikaylo’s Perturbation Theory","authors":"Philipp I. Vysikaylo","doi":"10.1109/TPS.2024.3350370","DOIUrl":"10.1109/TPS.2024.3350370","url":null,"abstract":"On the basis of Vysikaylo’s perturbation theory, it is solving of Gromeka-Lamba’s equations for charged particles suggested. The new type of ambipolar diffusion caused by inertia of ions and electrons had been investigated, and the processes of ambipolar diffusion in plasma had been classified. Three main types of ambipolar diffusion had been compared; they are: 1) Schottky’s diffusion (caused by higher electrons mobility and temperature than ions mobility and temperature); 2) Vysikaylo-Poisson’s diffusion (caused by the disturbance of electrical neutrality of plasma); and 3) Vysikaylo-Euler’s diffusion (caused by the inertia of ions and electrons). The coefficients of all diffusions had been calculated, and dependences on main plasma parameters had been determined. In accordance with the classification of ambipolar diffusions, jumps (shock waves) of the main plasma parameters were divided into shock waves with violation of the electrical neutrality of the plasma (Vysikaylo-Poisson) and diffusion shocks, which, in turn, were divided into Vysikaylo-Euler’s shocks and classical Schottky’s shocks. The modification of sources and sinks of charged particles was investigated by taking into account the electrons diffusion in the total current in the plasma.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141865619","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

Investigations on a Triple-Band Metasurface Absorber as THz-Biomedical Sensor 作为太赫兹生物医学传感器的三波段元表面吸收器研究

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2024-07-30 DOI: 10.1109/tps.2024.3431929

Raghvenda Kumar Singh, Pankaj Binda, Utpal Dey

引用次数: 0

Higher Order Harmonics Are Suppressed in RF Capacitively Coupled Ar Plasmas Using an External Impedance Circuit 利用外部阻抗电路抑制射频电容耦合氩等离子体中的高阶谐波

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2024-07-30 DOI: 10.1109/tps.2024.3432575

Qianghua Yuan, Zhaohui Liu, Guiqin Yin, Jiangfeng Ren

引用次数: 0

Numerical Study on Performance of a Xenon-Seeded Neon Plasma Magnetohydrodynamic Electrical Power Generator 氙氖等离子体磁流体动力发电机性能的数值研究

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2024-07-30 DOI: 10.1109/TPS.2024.3430198

Kimsor Ork;Yoshihiro Okuno

{"title":"Numerical Study on Performance of a Xenon-Seeded Neon Plasma Magnetohydrodynamic Electrical Power Generator","authors":"Kimsor Ork;Yoshihiro Okuno","doi":"10.1109/TPS.2024.3430198","DOIUrl":"10.1109/TPS.2024.3430198","url":null,"abstract":"The performance of a disk-shaped magnetohydrodynamic (MHD) electrical power generator with a neon (Ne)/xenon (Xe) working gas is examined by r–z and r–\u0000<inline-formula> <tex-math>$ {theta }$ </tex-math></inline-formula>\u0000 2-D numerical simulations. The results obtained from these simulations are compared in order to evaluate the generator performance precisely, including the effects of the boundary layer and plasma uniformity. Both the r–z and r–\u0000<inline-formula> <tex-math>$ {theta }$ </tex-math></inline-formula>\u0000 simulations show that adding small amounts of Xe can reduce the pre-ionization power ratio (P.P.R.) without changing the generator performance, whereas adding an excessive amount deteriorates the performance. Under the optimum conditions, the plasma structure obtained in the r–\u0000<inline-formula> <tex-math>$ {theta }$ </tex-math></inline-formula>\u0000 simulation becomes uniform, and the plasma and fluid flow properties are almost the same as those obtained in the r–z simulation. At that time, the enthalpy extraction ratio (E.E.R.) and isentropic efficiency (I.E.) obtained from these simulations are almost similar. Generator performance is slightly lower in the r–z numerical simulation than in the r–\u0000<inline-formula> <tex-math>$ {theta }$ </tex-math></inline-formula>\u0000 simulation because of the velocity decrease in the boundary layer near the walls. In the r–\u0000<inline-formula> <tex-math>$ {theta }$ </tex-math></inline-formula>\u0000 simulation, when a nonuniform plasma appears, the generator performance deteriorates drastically and becomes much lower than that in the r–z simulation.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141865620","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

SYstem for Microwave PLasma Experiments (SYMPLE) for Investigation of Microwave Absorption in Over-Dense Plasma 用于研究过密等离子体微波吸收的微波等离子体实验系统（SYMPLE）

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2024-07-30 DOI: 10.1109/tps.2024.3430330

Priyavandana J. Rathod, V. P. Anitha, D. V. Giri

引用次数: 0

Analysis and Experimental Validation of a New High-Voltage High-Frequency Converter for a Dielectric Barrier Discharge Lamp 用于电介质势垒放电灯的新型高压高频转换器的分析和实验验证

IF 1.3 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2024-07-30 DOI: 10.1109/TPS.2024.3424839

Xiongmin Tang;Chenghui Li;Haoyuan Xie;Zihao Zhao;Miao Zhang;Xuecong Li

{"title":"Analysis and Experimental Validation of a New High-Voltage High-Frequency Converter for a Dielectric Barrier Discharge Lamp","authors":"Xiongmin Tang;Chenghui Li;Haoyuan Xie;Zihao Zhao;Miao Zhang;Xuecong Li","doi":"10.1109/TPS.2024.3424839","DOIUrl":"10.1109/TPS.2024.3424839","url":null,"abstract":"If a bipolar excitation voltage is characterized by a high voltage, a high frequency, a suitable width, a necessary idle time, and a suppressed oscillation, it is conducive to improving the efficiency of a dielectric barrier discharge (DBD) lamp. Unfortunately, this form of excitation voltage is difficult to generate for a DBD lamp in the existing power supplies. To address this issue, a new high-voltage high-frequency converter for a DBD lamp is proposed. The high-frequency bipolar pulse excitation voltage is achieved with two symmetrical resonant circuits. The width of the pulse can be adjusted by changing the value of the resonant capacitance. The duration of the idle time can be altered by changing the operating frequency or the value of the resonant capacitances. The oscillation of the excitation voltage can be suppressed effectively by the unidirectional conductivity of the diodes. Besides the above-mentioned characteristics, the proposed converter possesses the advantages of simple structure and convenient control. Finally, the feasibility of the proposed converter is verified with an experimental prototype.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141865623","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

The Effect of Long-Term Electron Irradiation on Trap Distribution Characteristics of Polyimide 长期电子辐照对聚酰亚胺捕集分布特性的影响

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2024-07-26 DOI: 10.1109/tps.2024.3429368

Bingying Chen, Geng Chen, Xintong Zhang, Wenjia Zhang, Youping Tu

引用次数: 0

Recent Advancements in the DIII-D Plasma Control System DIII-D 等离子控制系统的最新进展

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2024-07-26 DOI: 10.1109/tps.2024.3415768

M. W. Margo, H. Shen, B. Penaflor, B. Sammuli, D. Piglowski, D. Eldon, J. Barr, D. Orozco, H. Anand, A. Moser, E. Cho, T. Pederson, J. Le, C. Lasnier, K. Erickson, R. Reed

引用次数: 0

Preliminary Remote Handling Analysis and Validation of the Electrical Connectors Bridge for the IFMIF-DONES High Flux Test Module IFMIF-DONES 高通量测试模块电气连接桥的初步远程处理分析和验证

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2024-07-26 DOI: 10.1109/tps.2024.3429634

Gabriele Benzoni, Andrea Di Ronco, Carolina Introini, Gioacchino Miccichè, Antonio Cammi

引用次数: 0