First results with the ANET Compact Thermal Neutron Collimator

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