TITLE

Toward ultracompact pseudospark switches

AUTHOR(S)
Jiang, Chunqi; Kuthi, Andras; Gundersen, Martin A.
PUB. DATE
January 2005
SOURCE
Applied Physics Letters;1/10/2005, Vol. 86 Issue 2, p024105
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This letter reports studies of small pseudospark switches wherein the volume is reduced by one order of magnitude relative to the smallest previously reported versions operating with a peak current >1 kA. In preliminary testing, the switch holds off >20 kV with a peak current >4 kA and a pulse duration of 150 ns. The switch was operated in an optically triggered mode (backlighted thyratron) with helium fill for >106 discharges at 13.5 kV and 3.3 kA, with 0.5 mC transfer per pulse, at a repetition rate of 10 Hz without significant decay of switch performance. Preliminary observations indicate that the device operates in a superemissive cathode mode, demonstrating a pathway towards ultracompact superemissive cathode switches for repetitive pulsed power applications.
ACCESSION #
15644101

 

Related Articles

  • Flash-lamp-triggered high-power thyratron-type switch. Kirkman, G.; Hartmann, W.; Gundersen, M. A. // Applied Physics Letters;2/22/1988, Vol. 52 Issue 8, p613 

    Extremely high cold cathode emission and a plasma current density that is much higher than commercial glow discharge hot cathode switches have been obtained in a flash-triggered hollow cathode thyratron-type switch that operates in a glow mode. The cold cathode emission is higher by several...

  • Autotriggered crowbar switch for a compact 600-kV pulser. Humphries, S.; Siergiej, D.; Schamiloglu, E. // Review of Scientific Instruments;Nov89, Vol. 60 Issue 11, p3564 

    We developed a shorting switch using commercial spark gaps triggered by a cable delay network. The combination of the switch and a Marx generator created a reproducible 600-kV, 80-ns voltage pulse for a 1-kA electron-beam gun.

  • Low pressure, light initiated, glow discharge switch for high power applications. Kirkman, George F.; Gundersen, Martin A. // Applied Physics Letters;9/1/1986, Vol. 49 Issue 9, p494 

    A low pressure glow discharge switch that has a number of features that are desirable for high power applications is described. The switch has achieved high stand-off voltage and peak current, has potential for very fast current rate of rise, and operates near the glow-to-arc transition in...

  • Performance of and excited state densities in a linear thyratron. Kushner, M. J.; Fisher, C. H.; Demboski, J. S.; Petr, R. A. // Journal of Applied Physics;10/15/1986, Vol. 60 Issue 8, p2766 

    Presents a study that described a prototype of a class of thyratrons having a linear geometry and presents measurements of excited state densities in the thyratron plasma using hook method spectroscopy. Information on thyratrons; Linear thyratron and measurement techniques; Measurements of...

  • A Test Bench for the Shock Loading by an Electrical Explosion of Foils. Gerasimov, A.; Zolotov, V.; Kul’gavchuk, V. // Instruments & Experimental Techniques;Jul/Aug2005, Vol. 48 Issue 4, p515 

    Pulsed mechanical loads on objects are produced upon an electrical explosion of metal foils with an area of <400 cm2. A bank of 48 ИК 100-0.4 УХЛ4 capacitors is mounted in four metallic tanks with oil insulation and stores an energy of up to 96 kJ. Each two capacitors are...

  • Characteristics of a laser triggered spark gap using air, Ar, CH4, H2, He, N2, SF6, and Xe. Kimura, W. D.; Kushner, M. J.; Seamans, J. F. // Journal of Applied Physics;3/15/1988, Vol. 63 Issue 6, p1882 

    Presents information on the results of a study which demonstrate that laser triggering at 248 nanometer of a high voltage spark gap switch is possible in a variety of gas mixtures. Experimental results; Interpretation of spark column interferograms; Model predictions; Conclusions.

  • Solid-state Marx based two-switch voltage modulator for the On-Line Isotope Mass Separator accelerator at the European Organization for Nuclear Research. Redondo, L. M.; Silva, J. Fernando; Canacsinh, H.; Ferrão, N.; Mendes, C.; Soares, R.; Schipper, J.; Fowler, A. // Review of Scientific Instruments;Jul2010, Vol. 81 Issue 7, p074703 

    A new circuit topology is proposed to replace the actual pulse transformer and thyratron based resonant modulator that supplies the 60 kV target potential for the ion acceleration of the On-Line Isotope Mass Separator accelerator, the stability of which is critical for the mass resolution...

  • Wavelength-Selective Switch using Thermally Tunable Microring Resonators. Geuzebroek, Douwe H.; Klein, Edwin J.; Kelderman, Henry; Driessen, Alfred // AIP Conference Proceedings;2004, Vol. 709 Issue 1, p413 

    A novel wavelength-selective switch based on thermally tunable Si3N4 microring resonators has been designed, realized and characterized. The switch has an ON/OFF ratio of 7.5 dB and is made out of two thermally tunable microrings which can be tuned over 5 nm. © 2004 American Institute of Physics

  • Electric strength of a vacuum gap during breakdown in an inhomogeneous electric field for switching high-power pulses. Dolgachev, G.; Maslennikov, D.; Ushakov, A.; Fedotkin, A.; Khodeev, I. // Instruments & Experimental Techniques;May2007, Vol. 50 Issue 3, p383 

    A system for matching the output of a multimodular plasma opening switch (POS) to a “liner”-type load having a small initial impedance is described. The main element of this system is an isolating spark gap that allows synchronization of the POS modules and prevents a repeated POS...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics