Physics Journal
Articles Information
Physics Journal, Vol.2, No.2, Mar. 2016, Pub. Date: Jan. 18, 2016
Further Studies on D.C. Noise in Plasma Due to Electron-Ion Collisions
Pages: 104-113 Views: 1101 Downloads: 545
Authors
[01] D. P. Nandedkar, Department of Electrical Engineering, Indian Institute of Technology, Bombay, Powai, Mumbai, India.
Abstract
D.C. noise in the plasma is generated due to the charge-oscillations set in the colliding ions by the electrons of the electron-ion pairs in equilibrium with the ambient temperature of the plasma. These electron-ion pairs are formed on otherwise free space. This d.c. noise radiation is a coupled one having a maximum value of the frequency denoted by a cut-off frequency which is determined by the density of ions in the plasma. The d.c. noise radiation temperature for this coupled noise is 8510K at ambient temperature of 2730K for singly charged particles of ionized hydrogen type gas molecules with low charge-carrier average density of electrons or ions i.e Ne~ 1015m-3 in a typical star dust of interstellar space(s) in the galaxy/galaxies with a characteristic temperature of 10210K having a cut off frequency of 21.29 x 10/sup>12 Hz, where it is assumed that there exit a randomly oriented average d.c. electric field of 10 V/m due to accumulation of charge-carriers of oppositely charged particles in some distant places in the galaxy/galaxies.
Keywords
Electron, Ion, Collisions, Charge-Oscillations, Coupled-Noise, D.C.-Noise, Radiation, Radiation-Temperature
References
[01] Dyson, J., (1997): “Physics of the Interstellar Medium”, London: Taylor & Francis.
[02] Kennicutt, R. C.; Evans, N. J., (2012): "Star Formation in the Milky Way and Nearby Galaxies". Annual Review of Astronomy and Astrophysics 50: 531.
[03] Weedman, D. W.; Feldman, F. R.; Balzano, V. A.; Ramsey, L. W.; Sramek, R. A.; Wuu, C. -C., (1981): "NGC 7714 - the prototype star-burst galactic nucleus". The Astrophysical Journal 248: 105.
[04] Curtis A. Monnig and Gary M. Hieftje, (1989): “An Investigation of Noise Amplitude Spectra Produced by a Direct-Current Plasma” OSA Publishing, “Applied Spectroscopy” Vol. 43, Issue 5, pp. 742-746.
[05] Sholi Kojima, Kazuo Takayama and Akira Shimauchi, (1954): “Noise of Gas Discharge Plasma”, J. Phys. Soc. Jpn. 9, pp. 802-804.
[06] Shoji Kojima and Kazuo Takayama, (1950): “Noise Temperature of a D.C. Gas Discharge Plasma” Phys. Rev. 80.
[07] M. S. Epstein, (1988): “Automation and Application of a Direct-Current Plasma Emission Spectromete”, Journal of Research of the National Bureau of Standards, Volume 93, Number 3, May-June.
[08] S. J. Peperone, (1962): “X-Band Measurement of Shock-Tube Plasma Temperature”, Appl. Phys. 33, 767.
[09] Nandedkar, D. P., & Bhagavat G. K., (1970): “D.C. Noise in plasma due to Electron-Ion Collisions”, International Journal of Electronics, Vol.29, pp. 513.
[10] Nandedkar, D. P. and Bhagavat G. K., (1970): “Damped Oscillations in Plasma, international Journal of Electronics, Vol. 29, pp. 337.
[11] Nandedkar, D. P., (2016): “Determination of the charge to mass ratio of an electron and classical radius of a gas molecule using the knowledge of electronic damped oscillations in plasma”, Vol. 2, No. 1, pp. …-…, 2016, Phys. Journal (PSF), AIS.
[12] Lorentz, H. A., (1915): “The Theory of Electrons”, Second Edition, Dover Publications, Inc., New York.
[13] Nandedkar, D. P., (2016): “Quantum statistical plasma model biased by a d.c. electric field and perturbed by low power r.f. waves”, Vol. 2, No. 1, pp. …-…, 2016, Phys. Journal (PSF), AIS.
[14] Nandedkar D. P., (1983): “Some Electrical properties of plasma, noble metals and intrinsic germanium and silicon (Parts I, II, and III), Part I: Electron-ion collision frequency in Plasma”, pp 1-3, Abstract record of the Silver Jubilee Symposium Electronics and Communications in the 80’s held at IIT Bombay, on Feb. 14-16.
[15] Gray, D. E. (Co-ordinating Editor), (1972): “American Institute of Physics Handbook”, 3rd Edition, McGraw Hill Book Company, New York etc.
[16] Tonks, L. and Langmuir I., (1929): “Oscillations in ionized gases”, Physical Review’, Vol. 33, pp. 195.
600 ATLANTIC AVE, BOSTON,
MA 02210, USA
+001-6179630233
AIS is an academia-oriented and non-commercial institute aiming at providing users with a way to quickly and easily get the academic and scientific information.
Copyright © 2014 - American Institute of Science except certain content provided by third parties.