TITLE

Improved measurement method for electron energy distribution functions with high accuracy and reliability

AUTHOR(S)
Jin Young Bang; Aram Kim; Chin Wook Chung
PUB. DATE
June 2010
SOURCE
Physics of Plasmas;Jun2010, Vol. 17 Issue 6, p064502
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
An improved ac superimposed method for measuring the electron energy distribution function (EEDF) with high accuracy is proposed. Although high amplitude of the superimposed ac voltage provides a higher signal-to-noise ratio (SNR), it causes the distortion in the EEDF. To correct the distortion, we used two different EEDFs measured by applying two different amplitudes. The distortion was accurately corrected over the entire electron energy region, and the corrected EEDF had the better SNR. The reliability of the corrected EEDF was proved by comparing the effective electron temperatures obtained from the measured EEDFs, and as a result, the corrected EEDF was very reliable.
ACCESSION #
51848477

 

Related Articles

  • Making MER Better: Part 1. Hranac, Ron // Communications Technology;Aug2009, Vol. 26 Issue 8, p14 

    The article discusses several ways on improving modulation error ratio (MER). It notes the importance of understanding the major factors that can affect MER including carrier-to-noise ratio (CNR), transmitted phase noise, and nonlinear distortions to ensure high MER. It cites that proper...

  • Parameters to Maximize 2f2-f1 Distortion Product Otoacoustic Emission Levels. Horn, Jennifer H.; Pratt, Sheila R.; Durrant, John D. // Journal of Speech, Language & Hearing Research;Dec2008, Vol. 51 Issue 6, p1620 

    Purpose: Past research has established parameters for the 2f1-f2 distortion product otoacoustic emissions (DPOAEs) that enhance response levels (e.g., L1 -- L2 = 10 dB; f2/f1 = 1.22; L1, L2 = 65, 55 dB SPL). These same parameters do not optimize 2f2-f1 DPOAEs. Therefore, this study was conducted...

  • Recording and processing of partial discharge signals. Gataullin, A. // Instruments & Experimental Techniques;Jul2014, Vol. 57 Issue 4, p426 

    Electromagnetic-activity signals that arise in an air discharge gap under the action of an alternating voltage at a frequency of 50 Hz were studied using an omnidirectional antenna, a measuring pulse transformer, and an oscilloscope. The frequency range with the maximum signal-to-noise ratio for...

  • A circuit analysis of an in situ tunable radio-frequency quantum point contact. Müller, T.; Choi, T.; Hellmüller, S.; Ensslin, K.; Ihn, T.; Schön, S. // Review of Scientific Instruments;Aug2013, Vol. 84 Issue 8, p083902 

    A detailed analysis of the tunability of a radio-frequency quantum point contact setup using a C - LCR circuit is presented. We calculate how the series capacitance influences resonance frequency and charge-detector resistance for which matching is achieved as well as the voltage and power...

  • Figure of merit of piezoelectret transducers for pulse-echo or transmit-receive systems for airborne ultrasound. Sessler, G. M.; Hillenbrand, J. // Applied Physics Letters;9/16/2013, Vol. 103 Issue 12, p122904 

    Piezoelectret transducers may be characterized relative to other kinds of piezoelectric transducers with respect to their combined transmit-receive performance by a figure of merit (FOM). Reasonable FOMs for the specific case of broadband (non-resonant) airborne ultrasonics are discussed in this...

  • Spectral and statistical analysis for ferroresonance phenomenon in electric power systems. Seker, Serhat; Akinci, Tahir; Taskin, Sezai // Electrical Engineering;Jun2012, Vol. 94 Issue 2, p117 

    This study presents our findings on the ferroresonance phenomenon for the Seyitomer-Isiklar part of the Electric Power System of 380 kV in Turkey. In this context, the power spectral density approach and Short-Time Fourier Transforms are applied to the voltage variations for phase R of the...

  • A sensitive search for young pulsars in supernova remnants using the GMRT. Roy, Jayanta; Gupta, Yashwant; Green, David A. // AIP Conference Proceedings;8/18/2011, Vol. 1357 Issue 1, p54 

    We present the results from a sensitive targeted search campaign at the GMRT to find young pulsars in Galactic SNRs. A sample of 12 SNRs with 'filled-center', 'composite' and 'shell' type morphologies were searched using a single pixel phased array beam of the GMRT at 610 MHz. No new pulsars...

  • Signal-to-noise ratio in dual-gated silicon nanoribbon field-effect sensors. Tarasov, A.; Fu, W.; Knopfmacher, O.; Brunner, J.; Calame, M.; Schönenberger, C. // Applied Physics Letters;1/3/2011, Vol. 98 Issue 1, p012114 

    Recent studies on nanoscale field-effect sensors reveal the crucial importance of the low-frequency noise for determining the ultimate detection limit. In this letter, the 1/f-type noise of Si nanoribbon field-effect sensors is investigated. We demonstrate that the signal-to-noise ratio can be...

  • Wide-band current preamplifier for conductance measurements with large input capacitance. Kretinin, Andrey V.; Chung, Yunchul // Review of Scientific Instruments;Aug2012, Vol. 83 Issue 8, p084704 

    A wide-band current preamplifier based on a composite operational amplifier is proposed. It has been shown that the bandwidth of the preamplifier can be significantly increased by enhancing the effective open-loop gain. The described 107 V/A current gain preamplifier had the bandwidth of about...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics