  The very low radioactive background of the Borexino detector, its large size,
and the well proved capability to detect both low energy neutrino and
anti-neutrino make an ideal case for the study of short distance neutrino
oscillations with artificial sources at Gran Sasso. This paper describes the
possible layouts of 51Cr neutrino and 144Ce-144Pr anti-neutrino source
experiments in Borexino and shows the expected sensitivity for three possible
different phases of the experiment.
