  The $^{192}$Ir sources are widely used for high dose rate (HDR) brachytherapy
treatments. The aim of this study is to simulate $^{192}$Ir MicroSelectron v2
HDR brachytherapy source and calculate the air kerma strength, dose rate
constant, radial dose function and anisotropy function established in the
updated AAPM Task Group 43 protocol. The EGSnrc Monte Carlo (MC) code package
is used to calculate these dosimetric parameters, including dose contribution
from secondary electron source and also contribution of bremsstrahlung photons
to air kerma strength. The Air kerma strength, dose rate constant and radial
dose function while anisotropy functions for the distance greater than 0.5 cm
away from the source center are in good agreement with previous published
studies. Obtained value from MC simulation for air kerma strength is
$9.762\times 10^{-8} \textrm{UBq}^{-1}$and dose rate constant is $1.108\pm
0.13\%\textrm{cGyh}^{-1} \textrm{U}^{-1}$.
