Development of a compact neutron collimator for imaging techniques within the ANET project

Neutron imaging techniques are of great interest to the scientific community, somehow complementary to radiography. Neutron imaging is usually performed on a reactor site involving large infrastructures. This article describes the development within the ANET project of a compact neutron collimator able to reach the same performances of a standard device, but on a factor ten reduced length, opening the possibility to perform neutron imaging on accelerator-based facilities. The results obtained at the INES facility in Rutherford Appleton Laboratory, that demonstrate the collimator working principle with both thermal and epithermal neutrons, will be shown.