| dc.identifier.citation | Weiss , C , Badurek , G , Berthoumieux , E , Calviani , M , Chiaveri , E , Dobos , D , Griesmayer , E , Guerrero , C , Jericha , E , Kaeppeler , F , Leeb , H , Rauscher , T & Vlachoudis , V 2012 , A CVD diamond detector for (n,alpha) cross section measurements . in Experimental Nuclear Astrophysics . , 015 , Proceedings of Science , vol. ENAS 6 , SISSA , VI European Summer School on Experimental Nuclear Astrophysics (ENAS6) , Acireale , Italy , 18/09/11 . < http://pos.sissa.it/archive/conferences/148/015/ENAS%206_015.pdf > | |
| dc.description.abstract | In astrophysics, the determination of the optical alpha-nucleus potential for low alpha-particle energies, crucial in understanding the origin of the stable isotopes, has turned out to be a challenge. Theory still cannot predict the optical potentials required for the calculation of the astrophysical reaction rates in the Hauser-Feshbach statistical model and there is scant experimental information on reactions with alpha particles at the relevant astrophysical energies. Measurements of (n,alpha) cross-sections offer a good opportunity to study the alpha channel. At the n_TOF experiment at CERN, a prototype detector, based on the chemical vapor deposition (CVD) diamond technology, has been recently developed for (n,alpha) measurements. A reference measurement of the 10B(n,alpha)7Li reaction was performed in 2011 at n_TOF as a feasibility study for this detector type. The results of this measurement and an outline for future experiments are presented here. | en |
