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Temperature-tuned Maxwell-Boltzmann neutron spectra for kT ranging from 30 up to 50 keV for nuclear astrophysics studies

The need of neutron capture cross section measurements for astrophysics motivates present work, where calculations to generate stellar neutron spectra at different temperatures are performed. The accelerator-based (7)Li(p,n)(7)Be reaction is used. Shaping the proton beam energy and the sample coveri...

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Published in:Applied radiation and isotopes 2012-08, Vol.70 (8), p.1583-1589
Main Authors: Martín-Hernández, G, Mastinu, P F, Praena, J, Dzysiuk, N, Capote Noy, R, Pignatari, M
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container_issue 8
container_start_page 1583
container_title Applied radiation and isotopes
container_volume 70
creator Martín-Hernández, G
Mastinu, P F
Praena, J
Dzysiuk, N
Capote Noy, R
Pignatari, M
description The need of neutron capture cross section measurements for astrophysics motivates present work, where calculations to generate stellar neutron spectra at different temperatures are performed. The accelerator-based (7)Li(p,n)(7)Be reaction is used. Shaping the proton beam energy and the sample covering a specific solid angle, neutron activation for measuring stellar-averaged capture cross section can be done. High-quality Maxwell-Boltzmann neutron spectra are predicted. Assuming a general behavior of the neutron capture cross section a weighted fit of the spectrum to Maxwell-Boltzmann distributions is successfully introduced.
doi_str_mv 10.1016/j.apradiso.2012.05.004
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title Temperature-tuned Maxwell-Boltzmann neutron spectra for kT ranging from 30 up to 50 keV for nuclear astrophysics studies
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