IEEE Transactions on Plasma Science最新文献_第2页

AMAROK: A Radio Frequency Development Platform for High-Power, Full-Scale Positive Ion Sources for DIII-D Neutral Beam Injectors AMAROK：用于DIII-D中性束注入器的大功率全尺寸正离子源射频开发平台

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2026-04-01 Epub Date: 2026-03-12 DOI: 10.1109/TPS.2026.3662254

Kirtan M. Davda;F. M. Laggner;E. Kallenberg;A. Mazzeo;M. Allen;K. J. Ammons;M. A. Shah;S. C. Shannon;A. M. Lietz;M. S. Hossain;J. T. Scoville;B. Crowley

{"title":"AMAROK: A Radio Frequency Development Platform for High-Power, Full-Scale Positive Ion Sources for DIII-D Neutral Beam Injectors","authors":"Kirtan M. Davda;F. M. Laggner;E. Kallenberg;A. Mazzeo;M. Allen;K. J. Ammons;M. A. Shah;S. C. Shannon;A. M. Lietz;M. S. Hossain;J. T. Scoville;B. Crowley","doi":"10.1109/TPS.2026.3662254","DOIUrl":"https://doi.org/10.1109/TPS.2026.3662254","url":null,"abstract":"Next-generation neutral beam injection (NBI) systems demand RF ion sources capable of efficiently coupling >120 kW at 2–4-MHz frequencies, yet existing designs face voltage standoff and impedance-matching challenges. To address this, the advanced multicoil antenna for RF operations at kilowatts (AMAROK) was developed as a high-power RF inductively coupled plasma (ICP) source delivering up to 200 kW in the 2–4-MHz range via four phase-controlled generators for flexible power sharing. Two antenna designs—a single-strap multiturn (MT) and a multistrap single-turn (ST) design—were evaluated to optimize resonance, impedance matching, and power coupling across plasma loads. A semi-analytical self-resonant frequency (SRF) model, validated experimentally, predicts resonance trends for arbitrary turn counts and tubing diameters, enabling rapid antenna optimization. Strap-to-strap mutual inductance in the ST configuration showed strong spatial dependence, guiding generator operation and total load inductance. These insights informed a custom <inline-formula> <tex-math>$pi $ </tex-math></inline-formula>-topology matching network, achieving stable impedance matching over a wide range of plasma-driven loads. Collectively, these results position AMAROK as a versatile testbed for advancing high-power RF source technology in fusion NBI applications.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"54 4","pages":"1390-1403"},"PeriodicalIF":1.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147685541","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}

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Experimental Investigation of a Plasma-Chemical Stabilizer for Multifuel Application 多燃料等离子体化学稳定剂的实验研究

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2026-04-01 Epub Date: 2025-10-14 DOI: 10.1109/TPS.2025.3616956

Serhiy I. Serbin;Artem V. Kozlovskyi;Badri T. Diasamidze

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Special Issue on the 40th PSSI National Symposium on Plasma Science and Technology (PLASMA 2025) 第40届PSSI全国等离子体科学与技术学术研讨会（Plasma 2025）特刊

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2026-04-01 Epub Date: 2026-04-16 DOI: 10.1109/TPS.2026.3680753

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IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2026-04-01 Epub Date: 2026-04-16 DOI: 10.1109/TPS.2026.3679161

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Design of High Current Tracking for Pulsed-Coil Power Supply Based on Cascaded Linear Active Disturbance-Rejection Control 基于级联线性自抗扰控制的脉冲线圈电源大电流跟踪设计

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2026-04-01 Epub Date: 2026-01-12 DOI: 10.1109/TPS.2025.3645318

Qian Jiang;Ge Gao;Shusheng Wang;Zongjie Fu

{"title":"Design of High Current Tracking for Pulsed-Coil Power Supply Based on Cascaded Linear Active Disturbance-Rejection Control","authors":"Qian Jiang;Ge Gao;Shusheng Wang;Zongjie Fu","doi":"10.1109/TPS.2025.3645318","DOIUrl":"https://doi.org/10.1109/TPS.2025.3645318","url":null,"abstract":"To suppress magnetohydrodynamic (MHD) instabilities during tokamak plasma experiments, this study designs a pulsed-coil power supply capable of four-quadrant operation and delivering a single-module output current of ±2.66 kA. However, the presence of the integral term in a conventional proportional–integral controller limits the achievable current slew rate and leads to suboptimal current sharing when multiple power supply modules operate in parallel. To address these issues without relying on a detailed mathematical model of the power system, a cascaded linear active disturbance-rejection control (CLADRC) strategy is proposed by leveraging the inherent decoupling advantages of the conventional linear active disturbance-rejection control (LADRC). The proposed design employs two cascaded extended state observers to estimate the lumped disturbances of the power supply and incorporates these disturbances as new system states for feedback compensation. Frequency-domain analysis demonstrates that the proposed control scheme achieves higher accuracy and faster disturbance estimation compared with traditional ADRC. Experimental results further verify that the CLADRC strategy not only satisfies the relevant technical requirements but also significantly enhances the dynamic performance of large-current tracking and improves current sharing among multiple parallel modules, outperforming both traditional proportional–integral (PI) and ADRC strategies.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"54 4","pages":"1359-1365"},"PeriodicalIF":1.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147685505","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}

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IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2026-04-01 Epub Date: 2026-04-16 DOI: 10.1109/TPS.2026.3679153

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Guest Editorial Special Issue on Plasma-Assisted Technologies April 2026 《等离子辅助技术特刊》2026年4月

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2026-04-01 Epub Date: 2026-04-16 DOI: 10.1109/TPS.2026.3676648

Igor Matveev;Paolo Gessini

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High-Voltage Isolated Gate Power Supply for Pulsed Carbon Nanotube X-Ray Systems 用于脉冲碳纳米管x射线系统的高压隔离栅电源

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2026-04-01 Epub Date: 2025-10-14 DOI: 10.1109/TPS.2025.3614009

Woo-Cheol Jeong;Yoon-Seok Lee;Jang-Hun Park;Ji-Ho Kim;Hyun-Bin Kim;Hong-Je Ryoo

{"title":"High-Voltage Isolated Gate Power Supply for Pulsed Carbon Nanotube X-Ray Systems","authors":"Woo-Cheol Jeong;Yoon-Seok Lee;Jang-Hun Park;Ji-Ho Kim;Hyun-Bin Kim;Hong-Je Ryoo","doi":"10.1109/TPS.2025.3614009","DOIUrl":"https://doi.org/10.1109/TPS.2025.3614009","url":null,"abstract":"This study presents a high-voltage isolated gate power supply for pulsed carbon nanotube (CNT) X-ray systems. The proposed design delivers gate voltages in the kilovolt range relative to a cathode voltage of tens of kilovolts, enabling the bipolar operation of CNT X-ray tubes. To ensure high-voltage insulation, a double-isolated transformer-based converter was employed, accompanied by a method to mitigate the inherent voltage imbalance in such transformers. The system was optimized for rapid voltage transitions, with fast rise and fall times critical for pulsed X-ray generation. An integral–proportional (IP) controller was implemented to achieve fast and stable gate voltage rise, overcoming limitations associated with the characteristics of CNT X-ray tubes. To further minimize fall times, an active pull-down circuit featuring multiple series-connected semiconductor switches was developed. A high-voltage cable-based electromagnetic driving system was implemented to realize high-voltage insulation, synchronous operation, and reliable power delivery to the switches. The experimental validation was conducted with a gate power supply system operating at a tube voltage of 160 kV, using both a resistive load and a CNT X-ray tube. The results demonstrated the system’s ability to deliver stable gate voltages of up to 5 kV at 200 Hz, achieving a rise time of 320 <inline-formula> <tex-math>$mu $ </tex-math></inline-formula>s and a fall time of 60 <inline-formula> <tex-math>$mu $ </tex-math></inline-formula>s under high-voltage conditions. These findings demonstrate the system’s potential for reliable operation in advanced CNT X-ray applications, contributing to the development of high-performance pulsed X-ray systems.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"54 4","pages":"1916-1922"},"PeriodicalIF":1.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147685324","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}

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Electrothermochemical Preparation of Steam Coal for Combustion 燃烧用动力煤的电热化学制备

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2026-04-01 Epub Date: 2026-01-29 DOI: 10.1109/TPS.2026.3655428

Magzhan N. Orynbasar;Vladimir E. Messerle;Alexandr B. Ustimenko

{"title":"Electrothermochemical Preparation of Steam Coal for Combustion","authors":"Magzhan N. Orynbasar;Vladimir E. Messerle;Alexandr B. Ustimenko","doi":"10.1109/TPS.2026.3655428","DOIUrl":"https://doi.org/10.1109/TPS.2026.3655428","url":null,"abstract":"Using the PlasmaKinTherm software package, kinetic calculations were performed for the electrothermochemical preparation of a prospective steam Kazakhstan coal (bituminous coal with an ash content of 18.5%) for combustion, which underlies its plasma ignition. The optimal dust concentration in the air mixture, satisfying all criteria for stable coal ignition, is 0.6 kg/kg. Calculations of electrothermochemical preparation in the volume of a plasma–coal burner (PCB) showed that its operating parameters depend on the concentration of coal dust in the air mixture, which ensures its ignition. Calculations revealed the distribution of temperatures and velocities of gas and coal particles, as well as concentrations of the products of electrothermochemical preparation of fuel along the length of the PCB. With the optimal dust concentration in the air mixture, the gas velocity at the outlet of the plasma–coal torch reaches 53.5 m/s, the temperature is 1430 K, and the concentration of combustible components is 56%. To verify the program used, a comparison of calculations with experimental data for plasma ignition of a bituminous coal was performed.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"54 4","pages":"1287-1293"},"PeriodicalIF":1.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147685325","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}

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Evaluation of Ester Dielectric Liquids for Sustainable Nanosecond Pulsed Power Systems 可持续纳秒脉冲电源系统中酯类介电液体的评价

IF 1.5 4区物理与天体物理

IEEE Transactions on Plasma Science Pub Date : 2026-04-01 Epub Date: 2025-12-11 DOI: 10.1109/TPS.2025.3639972

Chris Williamson;Martin J. Given;Scott J. MacGregor

{"title":"Evaluation of Ester Dielectric Liquids for Sustainable Nanosecond Pulsed Power Systems","authors":"Chris Williamson;Martin J. Given;Scott J. MacGregor","doi":"10.1109/TPS.2025.3639972","DOIUrl":"https://doi.org/10.1109/TPS.2025.3639972","url":null,"abstract":"The breakdown and degradation characteristics of ester-based dielectric liquids subjected to nanosecond impulses have been investigated and compared with those of conventional mineral oil. Experiments were performed using a ten-stage Marx generator delivering impulses across electrode configurations with varying field utilization factors. Two complementary studies were undertaken. First, a breakdown study was conducted, in which breakdown voltage, time to breakdown, and peak breakdown current were measured under both positive and negative polarities. Following this, a degradation study, where each liquid was subjected to 500 consecutive impulses prior to reevaluation under 25-kV ac partial discharge (PD) diagnostics, was undertaken. Results confirm the strong polarity dependence of nanosecond impulse breakdown, with higher breakdown voltages and longer time to breakdown observed under negative polarity. Ester liquids exhibited breakdown voltages comparable to mineral oil, but with consistently shorter delay times, indicating faster streamer initiation. In degradation tests, electrode conditioning produced apparent increases in breakdown voltage; however, PD measurements revealed that mineral oil experienced significantly greater deterioration, with larger increases in both peak and average PD. In contrast, both natural and synthetic esters showed more moderate degradation, with synthetic ester demonstrating the highest stability. The findings support the use of ester liquids as technically viable alternatives to mineral oil for pulsed power insulation applications.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"54 4","pages":"1348-1358"},"PeriodicalIF":1.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147685351","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