  We present a systematic analysis of two-pion interferometry for the central
Au+Au collisions at $\sqrt{S_{NN}}$ = 3, 5, 7, 11, 17, 27, 39, 62, 130 and 200
GeV/c with the help of a multiphase transport (AMPT) model. Emission
source-size radius parameters $R_{long}$, $R_{out}$, $R_{side}$ and the chaotic
parameter $\lambda$ are extracted and compared with the experimental data.
Transverse momentum and azimuthal angle dependencies of the HBT radii are also
discussed for central Au+Au collisions at 200 GeV/c. The results show that the
HBT radii in central collisions do not change much above 7 GeV/c. For central
collisions at 200GeV/c, the radii decrease with the increasing of transverse
momentum $p_{T}$ but not sensitive to the azimuthal angle. These results
provide a theoretical reference for the energy scan program of the RHIC-STAR
experiment.
