TY  - JOUR
T1  - Measurement and Studied on Some Plasma Parameters in the Edge of IR-T1 Tokamak
AU - Ghoranneviss, M. AU - Khorshid, P. AU - Razmara, A. 
JO  - Research Journal of Applied Sciences
VL  - 6
IS  - 3
SP  - 209
EP  - 212
PY  - 2011
DA  - 2001/08/19
SN  - 1815-932x
DO  - rjasci.2011.209.212
UR  - https://makhillpublications.co/view-article.php?doi=rjasci.2011.209.212
KW  - Tokamaks
KW  -resistive MHD
KW  -ohmic heating
KW  -electron collisions
KW  -impurities in plasmas
KW  -electric discharges
AB  - The Plasma resistivity has been measured in the edge plasma of IR-T1 tokamak. The fundamental plasma parameters of electron Temperature (T<SUB>e</SUB>) and electron density (n<SUB>e</SUB>) are measured simultaneously for calculating the radial profile of vertical and parallel resistivity using IV characteristics of a moveable single Langmuir probe. Since the effective charge (Z<SUB>eff</SUB>) and T<SUB>e</SUB> together define the plasma resistivity, Z<SUB>eff</SUB> considered for resistivity measurement in Spitzer model. The results have shown that electron density increased from edge to core of plasma column, as the parallel electrical resistivity of the plasma decreases with increasing temperature. As temperature of plasma raised, resistivity drops rapidly so reduction of resistivity with increasing temperature could leads to prolonging of the duration of the plasma discharge.
ER  -