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SUMMARY:Neutron energy measurements of (α\, xn) reactions with MONSTER
DTSTART;VALUE=DATE-TIME:20251119T141500Z
DTEND;VALUE=DATE-TIME:20251119T143000Z
DTSTAMP;VALUE=DATE-TIME:20260421T143805Z
UID:indico-contribution-28996@indico.ific.uv.es
DESCRIPTION:Speakers: José Llanes-Gamonoso (CIEMAT)\nThe total neutron yi
 eld and neutron spectra from (α\,xn) reactions are relevant for basic nuc
 lear physics\, nuclear technology\, and applications$^1$. These fields rel
 y on accurate experimental data of the nuclear reactions involved. Yet mos
 t of the available data were measured decades ago\, are incomplete\, or ha
 ve large uncertainties. Updating these libraries for (α\,xn)  requires\, 
 among others\, to carry out new experimental measurements$^2$.\n\nThe Meas
 urement of Alpha Neutron Yields and spectra (MANY) collaboration is carryi
 ng out a broad program on the measurement of (α\,xn) reactions for improv
 ing and expanding the existing databases. In the last years\, a set of mea
 surements on production yields\, cross sections\, and neutron and γ-ray e
 nergy spectra in the 27Al(α\,xn)30P reaction$^3$ \, at both Centro de Mic
 ro-Análisis de Materiales (CMAM)$^4$ and Centro Nacional de Aceleradores 
 (CNA)$^{5\, 6}$ facilities\, have been carried out.\n\nWe will present her
 e the neutron energy spectra obtain from the analysis of the measurement o
 f the 27Al(α\,xn)30P reaction at the CNA HiSPANoS facility\, and their co
 mparison with previous data$^7$.  During the experiment\, six cells of the
  MOdular Neutron time-of-flight SpectromeTER (MONSTER)$^{8\, 9\, 10}$ were
  used to measure time of flight of neutrons emitted. Various unfolding tec
 hniques$^{11\, 12}$ and Monte Carlo simulations$^{13}$ were used to obtain
  the experimental energy spectra and will be presented here. In addition\,
  plans of future measurements of other reactions at CMAM and/or CNA will b
 e discussed.\n\n[1] D. Cano-Ott et al\, Journal of Physics G: Nuclear and 
 Particle Physics\, (2025)\n[2] A. Junghans et al.\, INDC International Nuc
 lear Data Committee (IAEA)\, (2023) 10.61092/iaea.d2d0-encd\n[3] N. Mont-G
 eli et al.\, EPJ Web of Conferences\, 284\, (2023) 06004\n[4] A. Redondo-C
 ubero et al.\, The European Physical Journal Plus\, 136\, (2021) 175\n[5] 
 J. Gómez-Camacho et al.\, The European Physical Journal Plus\, 136\, (202
 1) 273\n[6] M.A. Millán-Callado et al.\, Radiation Physics and Chemistry\
 , 217\, (2024) 111464\n[7] G.J.H. Jacobs et al.\, Annals of nuclear energy
 \, 10\, (1983) 541-552\n[8] A.R. Garcia et al.\, Journal of Instrumentatio
 n\, 7\, (2012) C05012\n[9] T. Martínez et al.\, Nucl. Data Sheets\, 120\,
  (2014) 78-80\n[10] A. Pérez de Rada Fiol et al.\, β-delayed neutron spe
 ctroscopy of 85\,86As with MONSTER.\n[11] J.L. Tain et al.\, Nuclear Instr
 uments and Methods in Physics Research\, 571\, (2007) 728-738\n[12] A. Pé
 rez de Rada Fiol et al.\, Radiation Physics and Chemistry\, 226\, (2025) 1
 12243\n[13] S. Agostinelli et al.\, Nuclear Instruments and Methods in Phy
 sics Research Section A: Accelerators\, Spectrometers\, Detectors and Asso
 ciated Equipment\, 506\, (2003) 250-303\n\nhttps://indico.ific.uv.es/event
 /8035/contributions/28996/
LOCATION:
URL:https://indico.ific.uv.es/event/8035/contributions/28996/
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