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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
[01] D. P. Nandedkar, Department of Electrical Engineering, Indian Institute of Technology, Bombay, Powai, Mumbai, India.
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.
Electron, Ion, Collisions, Charge-Oscillations, Coupled-Noise, D.C.-Noise, Radiation, Radiation-Temperature
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