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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 |
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Main Authors: | , , , , , |
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container_issue | 8 |
container_start_page | 1583 |
container_title | Applied radiation and isotopes |
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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 |
format | article |
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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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