{"title":"Degradation of PRFE by pulsed electron beam in vacuum conditions","authors":"S. Korenev","doi":"10.1109/PPC.2003.1278038","DOIUrl":"https://doi.org/10.1109/PPC.2003.1278038","url":null,"abstract":"The new method of degradation of polytetrafluoroethylene (PTFE) in vacuum conditions is considered in the report. The combination of glows gas discharge and surface discharge on PTFE increases the efficiency of radiation degradation. The concept of this method consists in the breaking of C-C and C-F bonds for PTFE in the vacuum conditions. The vacuum conditions allow to decrease the concentration of toxic gases. The experimental results for degradation of PTFE are presented.","PeriodicalId":143385,"journal":{"name":"Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121360250","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}
B. Freeman, J. Boydston, J. Ferguson, B. Lindeburg, A. Luginbill, T. Tutt
{"title":"Development of small, tapered stator helical magnetic flux compression generators","authors":"B. Freeman, J. Boydston, J. Ferguson, B. Lindeburg, A. Luginbill, T. Tutt","doi":"10.1109/PPC.2003.1277999","DOIUrl":"https://doi.org/10.1109/PPC.2003.1277999","url":null,"abstract":"For some applications of magnetic flux compression generators, shorter pulse widths, with associated higher voltages and power level, are required. We have developed a family of small, tapered stator generators that begin to address these applications. Specifically, the three versions of these FCGs developed use stator angles of 10/spl deg/, 12/spl deg/, and 13/spl deg/ with respect to the generator axis. The armature diameter is 2.54 cm, and the armature expansion ration is about 2:1. The shortest pulse, in terms of full-width-half-maximum (FWHM), produced is 398 ns in the current derivative. The peak value for dl/dt is about 3.5 x 10/sup 10 /amps/sec.","PeriodicalId":143385,"journal":{"name":"Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472)","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121404157","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}
C. C. Wright, R. A. Stuart, C. Petichakis, A. Al-Shamma'a, J. Lucas
{"title":"Theoretical and experimental results of a compact industrial microwave free electron maser system","authors":"C. C. Wright, R. A. Stuart, C. Petichakis, A. Al-Shamma'a, J. Lucas","doi":"10.1109/PPC.2003.1277707","DOIUrl":"https://doi.org/10.1109/PPC.2003.1277707","url":null,"abstract":"The role of microwaves within material technologies has so far been a minor one, this is because the availability of the magnetron source, which can only provide distributed heating, with simple amplitude modulation control. However, we have designed a tunable source, industrial free electron maser (IFEM), which provides sufficient pulsed peak power for various applications, in material processing. This requires focused microwave power, similar to a laser beam, to achieve high power density. In this paper, the theoretical results of the interaction region will be explained as well as the principal of operation and IFEM system set-up. The design and construction of the system main components including electron gun, wiggler magnet, cavity resonator and energy recovery section are reported. Results of the effective industrial use of IFEM to enable striking and maintaining low-pressure plasmas and sufficient average power to perform experiments using germicidal UV and ozone generating lamps are described.","PeriodicalId":143385,"journal":{"name":"Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129223348","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}
A. Vedernikov, N.Y. Kas'yanov, V. P. Kovalev, V. Kononenko, A. I. Kormilitsyn, A. Pavlenko, V. A. Filatov
{"title":"Electrically exploded current-switch","authors":"A. Vedernikov, N.Y. Kas'yanov, V. P. Kovalev, V. Kononenko, A. I. Kormilitsyn, A. Pavlenko, V. A. Filatov","doi":"10.1109/PPC.2003.1278077","DOIUrl":"https://doi.org/10.1109/PPC.2003.1278077","url":null,"abstract":"The paper presents the electrically exploded switch for currents of the order of hundreds of kiloamperes with the breaking time of the order of hundreds of microseconds. Switches were developed at RFNC-VNIITF within the \"BAIKAL\" project for the \"MOL\" facility. This switch allowed the breaking time to be controlled in the range of 40...150 /spl mu/s with the overvoltage of 1.2...4.4.","PeriodicalId":143385,"journal":{"name":"Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128453412","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}
{"title":"Compact, portable pulsed power: physics and applications","authors":"M. Gundersen, J. Dickens, W. Nunnally","doi":"10.1109/PPC.2003.1277651","DOIUrl":"https://doi.org/10.1109/PPC.2003.1277651","url":null,"abstract":"We describe an academic research program designed to investigate fundamental issues that will impact future pulsed power technology. The project is intended to enhance the scientific footing for pulsed power, and to address issues in the development of compact, repetitive pulsed power. These include physics issues implicit in switch development, including both solid state and gas-phase, pulse generation at various levels from extremely small for fast high field generation to >100 kV, and applications including ignition of jet fuels and biological response to electric fields.","PeriodicalId":143385,"journal":{"name":"Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116844064","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}
J. Buneo, J. Zirnheld, K. Burke, J. Meade, J. C. Jones, W. J. Sarjeant
{"title":"Capacitance and inductive influence of fusing behavior","authors":"J. Buneo, J. Zirnheld, K. Burke, J. Meade, J. C. Jones, W. J. Sarjeant","doi":"10.1109/PPC.2003.1278072","DOIUrl":"https://doi.org/10.1109/PPC.2003.1278072","url":null,"abstract":"A fusing technique is currently being investigated at the Energy Systems Institute that will utilize a thin film planar geometry. The film is capacitor grade, metallized polypropylene at seven microns thick, and was cut to sizes of 12\" /spl times/ 3/4\". The metallization consists of aluminum and has a surface resistance of 7 /spl Omega//square. The fusing technique under evaluation consists of a 2 /spl mu/F 12.5 kV/sub dc/ filter capacitor which is used to supply the 2500 V/sub dc/ to cause the desired fusing action. Initial measurements show an impulse current of 6 A and pulse duration of 50 /spl mu/s. As this was a filter capacitor, the inductance was assumed to be higher than an energy discharge capacitor and thus the energy discharge time would be slower. To confirm a high inductance, a GENRAD 1689 Precision RLC Digibridge was used to measure the stray inductance of the capacitor. The stray inductance was found to be approximately 12 mH, which is extremely high. An energy discharge capacitor will be inserted into the experimental setup to lower the inductance and decrease the energy discharge time.","PeriodicalId":143385,"journal":{"name":"Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117350531","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}
A. Lindblom, P. Appelgren, A. Larsson, S. E. Nyholm, J. Isberg, H. Bernhoff
{"title":"High-voltage transmission line transformer based on modern cable technology","authors":"A. Lindblom, P. Appelgren, A. Larsson, S. E. Nyholm, J. Isberg, H. Bernhoff","doi":"10.1109/PPC.2003.1277965","DOIUrl":"https://doi.org/10.1109/PPC.2003.1277965","url":null,"abstract":"A high-voltage transmission line pulse transformer has been constructed based on modern cable technology. The transformer has been successfully tested for secondary voltages up to 85 kV. The high-voltage cable is equipped with a resistive layer (semicon) on the inner conductor and on the inside of the outer conductor. Semicon cables are commonly used in high-voltage transmission of electrical power. This article describes a transformer design that uses the screen in the coaxial cable as primary winding and the inner conductor as secondary. The coupling factor for the single layer transformer is 0.8. This high coupling factor is achieved due to the coaxial structure. The single layer transformer was tested in an existing power-conditioning system, in which an output voltage of 85 kV was achieved. The pulse had 1-/spl mu/s duration over a 15-/spl Omega/ load. The high voltage cable with PEX insulation proved to withstand very high stress (85 kV/mm). This type of transformer is useful in applications where weight is an important factor. The simple design ensures low cost manufacturing.","PeriodicalId":143385,"journal":{"name":"Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115668713","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}
A. Pavlenko, V. Afanas’ev, Y. Kucherenko, A. T. Litvin, R.A. Mangasarov, L. A. Osadchuk
{"title":"Possibilities of laboratory complex GNUV for studying the mechanical properties of materials in the wide range of impulse loading","authors":"A. Pavlenko, V. Afanas’ev, Y. Kucherenko, A. T. Litvin, R.A. Mangasarov, L. A. Osadchuk","doi":"10.1109/PPC.2003.1277956","DOIUrl":"https://doi.org/10.1109/PPC.2003.1277956","url":null,"abstract":"The GNUV laboratory complex uses two methods of shock wave shaping, namely, the method of electric explosion and the method of sample impact by the plate accelerated by electric explosion. The paper demonstrates potentialities of these methods application. The operating stresses in the sample are recorded by two means. In the range of shock waves with an amplitude of up to 40 kbar (4 GPa) quartz and piezoceramic pressure gauges are applied. Laser Doppler interferometry is used for measuring the rates of impactors (rate of sample free surface) and high pressures. The pressure gauge method was modified to measure the shock wave created by the nanosecond electric explosion of thin wire.","PeriodicalId":143385,"journal":{"name":"Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472)","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115620818","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}
R. Caldecott, O. Altay, S. Sebo, D. Schweickart, J. Horwath, L. Walko
{"title":"Processing test data generated by high surge current tests on a fuselage-like test setup","authors":"R. Caldecott, O. Altay, S. Sebo, D. Schweickart, J. Horwath, L. Walko","doi":"10.1109/PPC.2003.1278047","DOIUrl":"https://doi.org/10.1109/PPC.2003.1278047","url":null,"abstract":"In two laboratories, one high voltage and the other one high current, various metal test cylinders were subjected to current pulses, up to 15 kA for the simulation of aircraft susceptibility to high transient currents and voltages. Surge current and corresponding dB/dt time functions were recorded during the tests (B is the magnetic flux density). The project is related to the electromagnetic (EM) compatibility performance of an aircraft in case of transient (i.e., surge) currents, such as lightning strokes. The paper reviews (step-by-step) the processing of surge current and dB/dt test data, and illustrates all steps with examples. Processing the test data makes the EM compatibility evaluation of the test results possible. Evaluation of the test results gives information on the magnitude and wave shape of transient EM field related quantities in the internal area of the fuselage of an aircraft that result in EM interference with on-board electronics.","PeriodicalId":143385,"journal":{"name":"Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116280331","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}
{"title":"Dynamic deformation of a solenoid wire due to internal magnetic pressure, revised","authors":"E. Ruden, G. Kiuttu, M. Frese, S. Frese","doi":"10.1109/PPC.2003.1278027","DOIUrl":"https://doi.org/10.1109/PPC.2003.1278027","url":null,"abstract":"Deformation of the wire used in the windings of an inertially confined (single use) solenoid used to produce a pulsed high magnetic field is potentially the limiting factor for the magnitude and duration of the magnetic field produced. The rising magnetic pressure at the wire surface becomes large enough to cause the cross section of the wire to plastically deform on a time scale shorter than the overall solenoid disassembly time. This may result in short circuiting due to insulator breakage and/or physical contact of adjacent windings. An analytic approximation modeling the deformation dynamics is presented which takes into account both inertial and material yield strength effects. The model is validated by comparison to two dimensional magnetohydrodynamic simulations of the process by Numerex's MS Windows version of AFRL's MACH2. Cases ranging from those where yield strength has a negligible effect on the deformation to where yield strength is significant are considered. This paper expands on work presented at the previous IEEE IPPC [E.L. Ruden et al., 2001].","PeriodicalId":143385,"journal":{"name":"Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114437848","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}