Status of the Imaging Facility INUS at INR

Publication date: 2017 Source:Physics Procedia, Volume 88 Author(s): Marin Dinca, C. Iorgulis, D. Barbos, L.D. Mitrea An imaging facility (INUS) with thermal neutrons and γ radiations is in use at the tangential channel of the TRIGA Annular Core Pulsing Reactor (ACPR) from the Institute for Nuclear Research (INR). ACPR is a nuclear research reactor operated in steady state with a maximum power of 500kW and in pulsing mode with a peak power of 20000 MW. ACPR was used for neutron imaging only by operation in steady state mode at a power of 100kW. There are presented actual parameters of the facility after some beam port's and collimator's modifications, the last improvements in the remote control for different displacements with step by step motors to perform easier and faster experiments, the benefit of the using new lens, Xenon 0.95/25mm, with low f-number (the ratio of the lens’ focal length (f) to the diameter of the aperture or iris diameter, written as f/#), that gathers more light than previously lens and the experiments for visualization of the first dynamic scenes with EM-CCD Hamamatsu C9100-02 camera. The experiments were made for static positions and movements of a pendulum with different contrast elements for thermal neutrons (captured by a 6Li-ZnS scintillator) and γ radiations (captured by a Lanex scintillator), with and without mono-crystal of bismuth filter in radiation beam. The effect of the bismuth filter at the formation of the image with each of t...

Source: Physics Procedia - June 24, 2017 Category: Physics Source Type: research