  This paper presents the first determination of the spatial resolution of the
ANET Compact Neutron Collimator, obtained with a measuring campaign at the LENA
Mark-II TRIGA reactor in Pavia. This novel collimator consists of a sequence of
collimating and absorbing channels organised in a chessboard-like geometry. It
has a scalable structure both in length and in the field of view. It is
characterized by an elevated collimation power within a limited length. Its
scalability and compactness are added values with respect to traditional
collimating system. The prototype tested in this article is composed of 4
concatenated stages, each 100mm long, with a channel width of 2.5mm, delivering
a nominal L/D factor of 160. This measuring campaign illustrates the use of the
ANET collimator and its potential application in neutron imaging for facilities
with small or medium size neutron sources.
