Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference最新文献_第8页

High voltage generator with fast risetime for EMP simulation 具有快速上升时间的高压发生器，用于EMP仿真

Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference Pub Date : 1995-07-03 DOI: 10.1109/PPC.1995.599806

H. Schilling, J. Schluter, M. Peters, K. Nielsen, J. T. Naff, H. Hammon

{"title":"High voltage generator with fast risetime for EMP simulation","authors":"H. Schilling, J. Schluter, M. Peters, K. Nielsen, J. T. Naff, H. Hammon","doi":"10.1109/PPC.1995.599806","DOIUrl":"https://doi.org/10.1109/PPC.1995.599806","url":null,"abstract":"The 1-MV EMP simulator at WWDBw, Munster, Germany, was developed during the late 1970s. The pulsed power system, supplied by Physics International Company (PI) of San Leandro, CA, includes a Marx generator and a peaking circuit/transmission line pulse launch system contained within a plastic housing (gas box) filled with the insulating gas R-12 (freon). Two major concerns have developed over the years since the WWDBw simulator was first dedicated: (1) the venting of freon-12 into the atmosphere is considered harmful to the natural environment, and (2) the most recent EMP studies show that simulated field risetimes might need to be considerably faster than the 10 ns requirements of ten years ago. WWDBw has contracted with PI to provide modifications as necessary to eliminate R-12 from the gas house and to design and develop a pulser providing faster risetimes. PI's modifications have achieved reliable, reproducible operation at 970 kV in an air environment with risetimes less than 7 ns. In addition, PI has designed, fabricated and tested a pulser for risetimes of 1 ns, 300 to 500 kV output voltage, and 30 to 100 ns pulsewidth. The pulser is compatible with the 1 MV pulser interface so that either pulser can be used to drive the 90 /spl Omega/ waveguide. The fast risetime pulser uses the existing Marx to charge a transfer capacitor similar to the existing peaking capacitors. Upon closure of the transfer switch, a very low inductance peaking capacitor is charged. Subsequent closure of a low inductance output switch launches the fast risetime wave.","PeriodicalId":11163,"journal":{"name":"Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76107763","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: 26

Pulsed power in Japan 日本的脉冲功率

Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference Pub Date : 1995-07-03 DOI: 10.1109/PPC.1995.596448

H. Akiyama

引用次数: 1

A compact high voltage vector inversion generator 一个紧凑的高压矢量反转发生器

Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference Pub Date : 1995-07-03 DOI: 10.1109/PPC.1995.599811

T. Engel, M. Kristiansen

引用次数: 6

A fast capacitive voltage monitor for low impedance pulse lines 一种用于低阻抗脉冲线路的快速电容式电压监测器

Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference Pub Date : 1995-07-03 DOI: 10.1109/PPC.1995.599723

P. Choi, M. Favre

{"title":"A fast capacitive voltage monitor for low impedance pulse lines","authors":"P. Choi, M. Favre","doi":"10.1109/PPC.1995.599723","DOIUrl":"https://doi.org/10.1109/PPC.1995.599723","url":null,"abstract":"Accurate and reliable electrical measurements are critical issues in high voltage transmission lines for pulse power generators. Capacitive voltage monitoring is a well established technique which is widely used in this type of device. The monitor can operate in the pure capacitive division, or self-integrating mode for direct monitoring of the voltage or as a Ddot probe to measure the time rate of change of voltage. Difficulties exist in trying to improve the high frequency response of these monitors in the environment of a low impedance pulse line with water dielectric. The ultimate goal in capacitive voltage monitoring is a simple design, with good high frequency response, convenient attenuation ratio and long time constant measurement capability. Here we propose a new design for a capacitive voltage monitor which, in principle, satisfies most of the above requirements and is particularly suitable when applied to low impedance high voltage transmission lines. Above all, the design is intrinsically matched to the characteristics of the output cable and simple to implement. In the following, the basic schemes of the capacitive monitor are first discussed in order to highlight the problems with high frequency design. The new design is then presented together with details of construction. Finally, the properties of the proposed monitor obtained from calculation, and circuit simulation are demonstrated.","PeriodicalId":11163,"journal":{"name":"Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72951454","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: 6

Ultrafast high power switching diodes 超快高功率开关二极管

Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference Pub Date : 1995-07-03 DOI: 10.1109/PPC.1995.596804

R. Focia, E. Schamiloglu, C. Fleddermann, W. Nunnally, J. Gaudet

{"title":"Ultrafast high power switching diodes","authors":"R. Focia, E. Schamiloglu, C. Fleddermann, W. Nunnally, J. Gaudet","doi":"10.1109/PPC.1995.596804","DOIUrl":"https://doi.org/10.1109/PPC.1995.596804","url":null,"abstract":"Impressive progress in semiconductor switch technology has been demonstrated at the A.I. Ioffe Physiotechnical Institute in St. Petersburg, Russia. In the moderate voltage (1 kV), moderate current (100 A) regime, the Ioffe group's technology demonstrates switching times of 2 ns or a di/dt of 5/spl times/10/sup 10/ A/s. In the thyristor area, large diameter devices have demonstrated rates of current rise approaching 10/sup 12/ A/s, which is comparable with spark gaps. A three year research project is underway in collaboration with the Ioffe group which seeks to define the physics, assess the technology, and identify the critical parameters that allow for successful development of semiconductor switches capable of operating at the parameters described above. The initial stage of the program studies individual switches produced by the Ioffe group in order to verify their operational parameters. The second stage of the program will study the physics issues important in achieving the operational specifications. The final stage of the program will suggest modifications to the device manufacture process that may yield further improvements in performance. This paper presents information on a computer-controlled test stand that was developed for testing a variety of components produced by the Ioffe group. Information on circuit modeling using PSPICE and one specific test circuit are discussed. Finally, performance results for two kinds of drift step recovery diodes (DSRD) are presented.","PeriodicalId":11163,"journal":{"name":"Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76752368","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: 9

The COBRA accelerator pulsed-power driver for Cornell/Sandia ICF research 用于康奈尔/桑迪亚ICF研究的COBRA加速器脉冲动力驱动器

Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference Pub Date : 1995-07-03 DOI: 10.1109/PPC.1995.599821

D.L. Smith, P. Ingwersen, L. Bennett, J. Boyes, D.E. Anderson, J. Greenly, R. Sudan, D. Hammer

引用次数: 1

Field excitation and discharge switching for air-core compulsators 空心式强制器的励磁和放电开关

Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference Pub Date : 1995-07-03 DOI: 10.1109/PPC.1995.596494

R. Thelen

引用次数: 5

Test of fast SCRs as spark gap replacement 快速可控硅作为火花间隙替换的试验

Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference Pub Date : 1995-07-03 DOI: 10.1109/PPC.1995.596806

M. Jung, W. Mayerhofer, M. Edele, O. Gstir, T. Schweizer, E. Zeyfang, E. Ramezani

引用次数: 6

Preliminary performance results of a high-current Cs-Ba tacitron in a simple inverter 简易逆变器大电流铯钡电子管的初步性能结果

Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference Pub Date : 1995-07-03 DOI: 10.1109/PPC.1995.599712

G. Masten, I. Djachiachvili, D. B. Morris, J. Gahl

引用次数: 2

Active plasma source formation in the MAP diode MAP二极管中主动等离子体源的形成

Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference Pub Date : 1995-07-03 DOI: 10.1109/PPC.1995.596774

K. Lamppa, R. Stinnett, T. Renk, M. T. Crawford, John Greenly

{"title":"Active plasma source formation in the MAP diode","authors":"K. Lamppa, R. Stinnett, T. Renk, M. T. Crawford, John Greenly","doi":"10.1109/PPC.1995.596774","DOIUrl":"https://doi.org/10.1109/PPC.1995.596774","url":null,"abstract":"The ion beam surface treatment (IBEST) program is exploring using ion beams to treat the surface of a wide variety of materials. These experiments have shown that improved corrosion resistance. Surface hardening, grain size modification, polishing and surface cleaning can all be achieved using a pulsed 0.4-0.8 MeV ion beam delivering 1-10 J/cm/sup 2/. The magnetically-confined anode plasma (MAP) diode, developed at Cornell University, produces an active plasma which can be used to treat the surfaces of materials. The diode consists of a fast puff valve as the source of gas to produce the desired ions and two capacitively driven B-fields. A slow magnetic field is used for electron insulation and a fast field is used to both ionize the puffed gas and to position the plasma in the proper spatial location in the anode prior to the accelerator pulse. The relative timing between subsystems is an important factor in the effective production of the active plasma source for the MAP diode system. The MAP diode has been characterized using a Langmuir probe to measure plasma arrival times at the anode annulus for hydrogen gas. This data was then used to determine the optimum operating point for the MAP diode on RHEPP-1 accelerator shots. Operation of the MAP diode system to produce an ion beam of 500 kV, 12 kA with 40% efficiency (measured at the diode) has been demonstrated.","PeriodicalId":11163,"journal":{"name":"Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82051559","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