  miniBELEN is a modular and transportable neutron moderated counter with a
nearly flat neutron detection efficiency up to 10 MeV. Modularity implies that
the moderator can be reassembled in different ways in order to obtain different
types of response. The detector has been developed in the context of the
Measurement of Alpha Neutron Yields (MANY) collaboration, which is a scientific
effort aiming to carry out measurements of (alpha,n) production yields,
reaction cross-sections and neutron energy spectra. In this work we present and
discuss several configurations of the miniBELEN detector. The experimental
validation of the efficiency calculations using 252Cf sources and the
measurement of the 27Al(alpha,n)30P reaction is also presented.
