Speaker
Description
The fission reaction cross-section of 243Am is a quantity of interest for both the nuclear technology sector and basic nuclear physics research. The experimental datasets available however have significant deficiencies, especially at low energies, with no comprehensive measurement of the resonances of 243Am(n,f) reaction. Two measurements of the 243Am(n,f) cross-section were performed at the neutron time of flight facility n_TOF at CERN, at the experimental areas 1 and 2 (EAR1, EAR2) to provide a high-accuracy and high-resolution dataset covering a broad neutron energy range from thermal up to hundreds of MeV. In these measurements a Micromegas detector setup and high-purity actinide samples, especially prepared and provided by the EC-JRC Geel target laboratory, were used. The measurement in EAR2 was especially optimized to measure below the threshold of 243Am at the thermal and the resonance region.
In this work, a detailed overview of the measurement at EAR2 will be given, with a focus on the measurement at the resonances of 243Am. An overview of the experimental setup and the actinide samples will be given, along with preliminary results