  The Southern Wide-field Gamma-ray Observatory (SWGO) is an international
collaboration working on realizing a next-generation observatory located in the
Southern hemisphere, which offers a privileged view of our galactic center. We
are working on the construction of a prototype water Cherenkov detector at
Politecnico di Milano using a flexible testing facility for several candidate
light sensors and configurations. A structure able to hold different types of
detectors in multiple configurations has been designed, built and tested in
Politecnico's labs. Furthermore, an analytical study of muons and electrons
showers has been carried out using the SWGO observatory simulation software to
examine the correlation between the detection capabilities of the prototype
tank and its water level.
