Effective regimes of runaway electron beam generation in helium, hydrogen, and nitrogen

Tarasenko, V. F.; Baksht, E. Kh.; Burachenko, A. G.; Lomaev, M. I.; Sorokin, D. A.; Shut'ko, Yu. V.
April 2010
Technical Physics Letters;Apr2010, Vol. 36 Issue 4, p375
Academic Journal
Runaway electron beam parameters and current-voltage characteristics of discharge in helium, hydrogen, and nitrogen at pressures in the range of several Torr to several hundred Torr have been studied. It is found that the maximum amplitudes of supershort avalanche electron beams (SAEBs) with a pulse full width at half maximum (FWHM) of ∼100 ps are achieved in helium, hydrogen, and nitrogen at a pressure of ∼60, ∼30, and ∼10 Torr, respectively. It is shown that, as the gas pressure is increased in the indicated range, the breakdown voltage of the gas-filled gap decreases, which leads to a decrease in the SAEB current amplitude. At pressures of helium within 20–60 Torr, hydrogen within 10–30 Torr, and nitrogen within 3–10 Torr, the regime of the runaway electron beam generation changes and, by varying the pressure in the gas-filled diode in the indicated intervals, it is possible to smoothly control the current pulse duration (FWHM) from ∼100 to ∼500 ps, while the beam current amplitude increases by a factor of 1.5–3.


Related Articles

  • A Study on the Dual Power Management IC for AMOLED Display. Seung-Woo Lee; Sun-Yeob Kim // International Journal of Multimedia & Ubiquitous Engineering;May2013, Vol. 8 Issue 3, p377 

    In this this paper, an IP driver block was designed and simulation conducted for an AMOLED display which supplies power as selected by users. The IP driver design focused on the regulation of output power, due to the OLED characteristic for diode electric current according to voltage, to be...

  • Evaluation of Cˇerenkov converters for measuring current density distribution in large-area electron beams. Samlin, G. E. // Journal of Applied Physics;9/15/1987, Vol. 62 Issue 6, p2169 

    Presents an evaluation of several types of Cerenkov converters to study time-resolved current uniformity in large-area electron beams. Information on time-integrated Cerenkov radiation; Factors which influence the spatial resolution; Choice of material for use as Cerenkov converter in a large...

  • High power ultrafast lasers Backus, Sterling; Durfee III, Charles G.; Murnane, Margaret M.; Kapteyn, Henry C. // Review of Scientific Instruments;Mar98, Vol. 69 Issue 3, p1207 

    Examines the development and performance of high power ultrafast lasers. Use of chirped-pulsed amplification technique to generate ultrashort pulses; Process for producing energy electron beams and high-energy ions; Mechanism for the coupling of spatial and temporal modes of lasers.

  • Time-dependent regimes of a Bursian diode I: Stability of steady solutions. Kuznetsov, V. I.; Ender, A. Ya. // Plasma Physics Reports;Mar2010, Vol. 36 Issue 3, p226 

    A study is made of physical phenomena characteristic of the Bursian diode�a plane vacuum diode with a monoenergetic electron beam. The paper consists of two parts. The first part is devoted to analyzing the stability of steady solutions against small perturbations. It is shown that there...

  • Ultrashort electron beams generated on the flat part of a voltage pulse in nitrogen and helium. Baksht, E. Kh.; Tarasenko, V. F.; Lomaev, M. I.; Rybka, D. V. // Technical Physics Letters;May2007, Vol. 33 Issue 5, p373 

    In the case of voltage pulses with a small amplitude, an ultrashort avalanche electron beam (UAEB) in a diode filled with nitrogen or helium is generated on a flat part of the pulse. UAEBs obtained at a voltage of 25 kV have a full width at half maximum (FWHM) of about 200 ps and are delayed...

  • Subnanosecond pulsed X-ray source based on nanosecond discharge in air at atmospheric pressure. Kostyrya, I. D.; Tarasenko, V. F. // Technical Physics Letters;Jun2009, Vol. 35 Issue 6, p508 

    We have studied the characteristics of an X-ray source based on a gas diode filled with air at atmospheric pressure. Driven by a SLEP-150 pulser with a maximum voltage amplitude of ∼140 kV, a pulse full width at half maximum (FWHM) of ∼1 ns, and a leading front width of ∼0.3 ns, a...

  • High-repetition-rate high-beam-quality 43 W ultraviolet laser with extra-cavity third harmonic generation. Ya, X.; Liu, Q.; Gong, M.; Fu, X.; Wang, D. // Applied Physics B: Lasers & Optics;May2009, Vol. 95 Issue 2, p323 

    High-power, high-repetition-rate extra-cavity third harmonic generation of 355 nm with high beam quality has been developed. The acoustic-optical Q-switched Nd:YVO4 MOPA laser including 2- and 4-stage amplifiers was used as the IR source. With the extra-cavity frequency conversion of LBO...

  • Transport and centering of high current electron beams in neutral gas filled cells. Myers, M. C.; Antoniades, J. A.; Meger, R. A.; Murphy, D. P.; Fernsler, R. F.; Hubbard, R. F. // Journal of Applied Physics;9/15/1995, Vol. 78 Issue 6, p3580 

    Studies transport and centering of high current electron beams in neutral gas filled cells. Method of the study; Results and discussion; Conclusion.

  • Selecting a Linear or PWM Power Source. Orr, Mitchel // EE: Evaluation Engineering;Nov2008, Vol. 47 Issue 11, p46 

    The article presents information on the capabilities and difference of linear and pulse-width modulated (PWM) alternating current (AC) power sources. It notes that the selection of an AC power source should be based on more than just three catalog specifications of rated voltage, frequency, and...


Read the Article


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

Try another library?
Sign out of this library

Other Topics