  The short and intermediate range order of an amorphous Ge$_{30}$Se$_{70}$
alloy produced by Mechanical Alloying were studied by Reverse Monte Carlo
simulations of its x-ray total structure factor, Raman scattering and
differential scanning calorimetry. The simulations were used to compute the
$G^{\text{RMC}}_{\text{Ge-Ge}}(r)$, $G^{\text{RMC}}_{\text{Ge-Se}}(r)$ and
$G^{\text{RMC}}_{\text{Se-Se}}(r)$ partial distribution functions and the
${\cal S}^{\text{RMC}}_{\text{Ge-Ge}}(K)$, ${\cal
S}^{\text{RMC}}_{\text{Ge-Se}}(K)$ and ${\cal
S}^{\text{RMC}}_{\text{Se-Se}}(K)$ partial structure factors. We calculated the
coordination numbers and interatomic distances for the first and second
neighbors and the bond-angle distribution functions $\Theta_{ijl}(\cos\theta)$.
The data obtained indicate that the structure of the alloy has important
differences when compared to alloys prepared by other techniques. There are a
high number of Se-Se pairs in the first shell, and some of the tetrahedral
units formed seemed to be connected by Se-Se bridges.
