  We report on the growth and characterization of Ge-doped \b{eta}-Ga2O3 thin
films using a solid germanium source. \b{eta}-Ga2O3 thin films were grown using
a low-pressure chemical vapor deposition (LPCVD) reactor with either an oxygen
or gallium delivery tube. Films were grown on 6 degree offcut sapphire and
(010) \b{eta}-Ga2O3 substrates with growth rates between 0.5 - 22 {\mu}m/hr. By
controlling the germanium vapor pressure, a wide range of Hall carrier
concentrations between 10^17 - 10^19 cm-3 were achieved. Low-temperature Hall
data revealed a difference in donor incorporation depending on the reactor
configuration. At low growth rates, germanium occupied a single donor energy
level between 8 - 10 meV. At higher growth rates, germanium doping
predominantly results in a deeper donor energy level at 85 meV. This work shows
the effect of reactor design and growth regime on the kinetics of impurity
incorporation. Studying donor incorporation in \b{eta}-Ga2O3 is important for
the design of high-power electronic devices.
