Ponente
Descripción
The production of neutrons through α-induced reactions play an important role in fields such as nuclear astrophysics, underground laboratories, fission and fusion reactors and non-destructive assays for non- proliferation and spent fuel management applications. However, most of the currently available experimental data was measured decades ago, is incomplete and/or present large discrepancies not compatible with the declared uncertainties. New measurements addressing the actual needs are, therefore, required [1]. To that end the Measurement of Alpha Neutron Yields and spectra (MANY) collaboration was formed.
MANY is a coordinated effort aiming to carry out measurements of (α, n) production yields, reaction cross- sections and neutron energy spectra. The project relies on the use of the α-beams produced by the accelerators at CMAM (Madrid) [2] and CNA HiSPANoS (Sevilla) [3,4]. The measurements are carried out using different types of neutron detection systems, including the miniBELEN neutron counter [5], the MONSTER time-of-flight spectrometer [6] and the GARY array of gamma detectors [7].
In this work we report the definitive results of the measurement of the 27Al(alpha,n)30P thick target neutron yields from 3.8 MeV up to 8 MeV. The measurment has been carried out at CMAM using the miniBELEN neutron counter. The reaction cross-sections have been obtained from the measured yields and the available stoppoing power data.
Bibliography
[1] A. Junghans, S.S. Westerdale, P. Dimitriou, IAEA technical meeting INDC(NDS)-0894 (2023).
[2] J. Gómez-Camacho et al, EPJ Plus 136:275 (2021)
[3] M. A. Millán-Callado et al., Rad. Phys. And Chem. (2024) 111464
[4] A. Redondo-Cubero et al., EPJ Plus 136:175 (2021)
[5] N Mont-Geli et al. EPJ Web of Conferences 284 (2023) 06004
[6] A R Garcia et al. Journal of Instrumentation 7 (2012) C05012
[7] L.M. Fraile et al. in NDC(NDS)-0894 (2024)
