2017 IEEE 21st International Conference on Pulsed Power (PPC)最新文献_第3页

Performance analysis of passive compulsators used for EML application with different compensation shield thickness EML用无源强制器不同补偿屏蔽厚度的性能分析

2017 IEEE 21st International Conference on Pulsed Power (PPC) Pub Date : 2017-06-01 DOI: 10.1109/PPC.2017.8291176

A. Kulkarni, M. J. Thomas

引用次数: 5

Optimized solid-state bipolar Marx modulador with resonant type droop compensation 具有谐振式下垂补偿的固态双极马克思调制器的优化

2017 IEEE 21st International Conference on Pulsed Power (PPC) Pub Date : 2017-06-01 DOI: 10.1109/PPC.2017.8291304

H. Canacsinh, F. A. Silva, L. Redondo, L. Rocha, V. Silva, J. Mendes, H. Bermaki, A. Semmak

引用次数: 0

Fusion ignition driven by pulse power 采用脉冲动力驱动聚变点火

2017 IEEE 21st International Conference on Pulsed Power (PPC) Pub Date : 2017-06-01 DOI: 10.1109/PPC.2017.8291192

G. Li

引用次数: 0

Measurement of intense continuous and flash radiographic sources with Compton spectrometers 用康普顿光谱仪测量强连续和闪光射线源

2017 IEEE 21st International Conference on Pulsed Power (PPC) Pub Date : 2017-06-01 DOI: 10.1109/PPC.2017.8291309

A. Gehring, M. Espy, T. Burris-Mog, C. Gautier, T. Haines, D. Moir, R. Shurter

{"title":"Measurement of intense continuous and flash radiographic sources with Compton spectrometers","authors":"A. Gehring, M. Espy, T. Burris-Mog, C. Gautier, T. Haines, D. Moir, R. Shurter","doi":"10.1109/PPC.2017.8291309","DOIUrl":"https://doi.org/10.1109/PPC.2017.8291309","url":null,"abstract":"Our team at Los Alamos National Laboratory has successfully employed Compton spectrometers to measure the x-ray spectra of intense radiographic sources, both continuous and flash. In this method, a collimated beam of x-rays incident on a convertor foil ejects Compton electrons. A collimator may be inserted into the entrance of the spectrometer to select the angular acceptance of the forward-scattered electrons, which then enter the magnetic field region of the spectrometer. The position of the electrons at the magnet's focal plane is proportional to the square root of their momentum, allowing the x-ray spectrum to be reconstructed. Two spectrometers have been fielded since 2013; a neodymium-iron-boron permanent magnet with an energy range of 500 keV to 20 MeV, and a new samarium-cobalt magnet with an energy range of 50 keV to 4 MeV. Measured spectra were produced by x-ray generating machines of various intensities (~5 rad at 1 m per 50 ns pulse to >2000 rad/min at 1 m) and different endpoints (range of 2.25 to 20 MeV). Preliminary analysis of the electron spectra produced at two different facilities with various beryllium converter foil thicknesses is presented in these proceedings.","PeriodicalId":247019,"journal":{"name":"2017 IEEE 21st International Conference on Pulsed Power (PPC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122216650","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: 2

Effect of discharge gas on water treatment using nanosecond pulsed power discharges 排放气体对纳秒脉冲功率放电水处理的影响

2017 IEEE 21st International Conference on Pulsed Power (PPC) Pub Date : 2017-06-01 DOI: 10.1109/PPC.2017.8291242

Y. Shimomura, M. Morimoto, K. Shimizu, K. Teranishi, N. Shimomura

{"title":"Effect of discharge gas on water treatment using nanosecond pulsed power discharges","authors":"Y. Shimomura, M. Morimoto, K. Shimizu, K. Teranishi, N. Shimomura","doi":"10.1109/PPC.2017.8291242","DOIUrl":"https://doi.org/10.1109/PPC.2017.8291242","url":null,"abstract":"Nowadays, water pollution is one of the environmental problems. We have studied a sewage treatment using nanosecond pulsed power discharges. The water treatment utilizes not only active species such as hydroxyl radical produced by electric discharges but also direct actions of discharges such as ultraviolet rays, shock wave and so on. In order to reduce the costs for treatment, treatment using air gas as a discharge gas was studied. The treatments using streamer discharges in simulated air gas, consisting of 20 % oxygen and 80 % nitrogen, and oxygen gas were evaluated. The surfactant treatment was assessed by the height of foam in the reservoir, which was one of the characteristics. The treatment by oxygen as discharge gas continued to reduce the height of foam in reservoir for 80 minutes treatment. On the other hand, the foam decreased rapidly for 0–20 minutes treatment. Under the presence of NO2, height of foam decreased rapidly because of increasing OH radical production. However, after 20 minutes, decrease of height of foam became slow because OH radical was consumed oxidizing NO2.","PeriodicalId":247019,"journal":{"name":"2017 IEEE 21st International Conference on Pulsed Power (PPC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128448539","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: 2

Dielectric performance of HFO-gas mixtures hfo -气体混合物的介电性能

2017 IEEE 21st International Conference on Pulsed Power (PPC) Pub Date : 2017-06-01 DOI: 10.1109/PPC.2017.8291272

Y. Yao, I. Timoshkin, M. Wilson, A. Mermigkas, M. Given, T. Wang, S. Macgregor

{"title":"Dielectric performance of HFO-gas mixtures","authors":"Y. Yao, I. Timoshkin, M. Wilson, A. Mermigkas, M. Given, T. Wang, S. Macgregor","doi":"10.1109/PPC.2017.8291272","DOIUrl":"https://doi.org/10.1109/PPC.2017.8291272","url":null,"abstract":"There is a strong demand in the power and pulsed power industries to find potential environmentally friendly alternative gases and liquids with advanced dielectric properties with the aim of replacing of SF6 gas in high-voltage equipment due to environmental concerns. Several alternative gases such as CF3I and hydrofluoroolefin and the mixture of these gasses with buffer gases have been considered as potential substitutes for SF6. However, the breakdown properties of these gases and gas mixtures are not well understood and their characteristics require further investigation in order to establish and expand potential practical applications. In this paper, the breakdown behaviour of gasses with well-established characteristics (air, CO2, N) and those of hydrofluoroolefin HFO1234ze/CO2 gas mixtures have been obtained in a dedicated point-plane topology, under the positive and negative voltage stress. The gas pressure in the test cell was in the range from 1 bar to 10 bar (abs) and all tests were conducted at room temperature. The obtained breakdown and corona ignition voltages will help in further development and optimisation of the plasma closing switches operating in the corona stabilisation regime and filled with environmentally friendly gases.","PeriodicalId":247019,"journal":{"name":"2017 IEEE 21st International Conference on Pulsed Power (PPC)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125450097","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

Study of output characters of pulse transformer with closed magnetic circuit 闭合磁路脉冲变压器输出特性研究

2017 IEEE 21st International Conference on Pulsed Power (PPC) Pub Date : 2017-06-01 DOI: 10.1109/PPC.2017.8291308

A. Basuray, S. Chatterjee

引用次数: 0

Implementation of high-voltage switch using inductive energy for switch synchronization 采用感应能实现高压开关的开关同步

2017 IEEE 21st International Conference on Pulsed Power (PPC) Pub Date : 2017-06-01 DOI: 10.1109/PPC.2017.8291220

G. Appiah, J. Bae, S. Jang, Chanhun Yu, H. Ryoo

{"title":"Implementation of high-voltage switch using inductive energy for switch synchronization","authors":"G. Appiah, J. Bae, S. Jang, Chanhun Yu, H. Ryoo","doi":"10.1109/PPC.2017.8291220","DOIUrl":"https://doi.org/10.1109/PPC.2017.8291220","url":null,"abstract":"For discrete semiconductor switches with smaller ratings stacked for high-voltage high-current applications, there is the need to ensure reliable gate synchronization of all the switches in the stack. The switching delay between the separate stages can be minimized through fast transfer of the control signals needed for synchronizing the switch or by reducing the effects of stray inductances. This paper describes the design of a HV switch which uses the inductive energy stored in the primary transformer for switch synchronization. In this design, single low-voltage power source provides control signal and sufficient current to drive the stacked insulated-gate bipolar transistors (IGBTs) at a sufficiently high gate — emitter voltage. The fast current transfer due to this inductive energy greatly improves switch turn-on delay time, allowing for reliable switch synchronization at fast speed. The designed HV switch was used as the modular unit of an SSPPM to apply rated pulse output voltage and current of 15 kV and 1.5 kA respectively to a load. The operation of the designed HV switch was verified through experimentation.","PeriodicalId":247019,"journal":{"name":"2017 IEEE 21st International Conference on Pulsed Power (PPC)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134556400","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

A novel technique for fault and lifetime self-diagnosis of closed transition transfer switch using dual lines 一种基于双线的闭式转换开关故障和寿命自诊断新技术

2017 IEEE 21st International Conference on Pulsed Power (PPC) Pub Date : 2017-06-01 DOI: 10.1109/PPC.2017.8291189

Sewan Heo, Wan-ki Park, Ilwoo Lee

引用次数: 3

Development of a 100 kV pulse generator for driving an electron scanner used in proton beam profile measurements 研制100千伏脉冲发生器，驱动质子束剖面测量用电子扫描仪

2017 IEEE 21st International Conference on Pulsed Power (PPC) Pub Date : 2017-06-01 DOI: 10.1109/PPC.2017.8291091

B. Morris, W. Blokland, V. Peplov, R. Saethre, R. Ness

引用次数: 0