L International Meeting on Fundamental Physics and XV CPAN days

Neutron TOF measurements with MONSTER: from β-decay to (α,n) reactions and beyond

2 Oct 2023, 16:15

15m

Aula Biblioteca (Palacio de la Magdalena)

CPAN - Red Temática de Física Nuclear (FNUC) CPAN - Red Temática de Física Nuclear (FNUC)

Speaker

Dr Alberto Pérez de Rada Fiol (CIEMAT - Centro de Investigaciones Energéticas Medioambientales y Tec. (ES))

Description

The MOdular Neutron time-of-flight SpectromeTER (MONSTER) was originally conceived within the FAIR-NUSTAR collaboration for the measurement of the energy distribution of $\beta$-delayed neutrons with the TOF technique. $\beta$-delayed neutron emission plays an important role in fields like nuclear technology, structure, and astrophysics. In addition to its original purpose, MONSTER can also be used to obtain the energy distribution of neutrons emitted in other kind of reactions, like $(\alpha ,n)$ reactions and other reactions where higher-energy neutrons are emitted.

In order to obtain the neutron energy distribution from the TOF measurement, an innovative methodology based on the iterative Bayesian unfolding method and accurate Monte Carlo simulations has been developed. This methodology has been validated through the analysis of a realistic virtual experiment.

In this meeting, the results obtained from the measurement of the ${}^{85,86}\text{As}$ $\beta$-decays at the IGISOL facility of JYFL-ACCLAB and the ${}^{27}\text{Al}(\alpha ,n{)}^{30}\text{P}$ reaction at CNA will be presented. Moreover, the preliminary results of a high-energy (20-40 MeV) characterization of MONSTER will also be presented.

Presentation materials

AlbertoPdRF_XVCPANDAYS.pdf

AlbertoPdRF_XVCPANDAYS.pptx