  The thermal neutrons were registered using a two-detector module based on two
planar Si detectors: with a neutron converter from natural metallic Gd and
without a converter. To obtain thermal neutrons we used a 239Pu-Be({\alpha},n)
fast neutron source with a paraffin moderator. The measurements were carried
out simultaneously by two detectors by processing two channels of registration
with a special computer program. In experiments gamma radiation was not
suppressed. The conversion electrons of the nuclear reaction Gd(n,{\gamma}e)Gd
were registered. We performed the registration of thermal neutrons with the
possibility of subtraction for background radiation.
