TY - JOUR
T1 - A CVD diamond detector for (n, a) cross-section measurements
AU - Weiss, C.
AU - Badurek, G.
AU - Berthoumieux, E.
AU - Calviani, M.
AU - Chiaveri, E.
AU - Dobos, D.
AU - Griesmayer, E.
AU - Guerrero, C.
AU - Jericha, E.
AU - Käppeler, F.
AU - Leeb, H.
AU - Rauscher, T.
AU - Vlachoudis, V.
PY - 2011
Y1 - 2011
N2 - In astrophysics, the determination of the optical a-nucleus potential for low a-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 α particles at the relevant astrophysical energies. Measurements of (n, a) crosssections offer a good opportunity to study the α 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, α) measurements. A reference measurement of the 10B(n, α)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.
AB - In astrophysics, the determination of the optical a-nucleus potential for low a-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 α particles at the relevant astrophysical energies. Measurements of (n, a) crosssections offer a good opportunity to study the α 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, α) measurements. A reference measurement of the 10B(n, α)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.
UR - http://www.scopus.com/inward/record.url?scp=84988416339&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:84988416339
SN - 1824-8039
VL - 18
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 015
T2 - 6th European Summer School on Experimental Nuclear Astrophysics, ENAS 2011
Y2 - 18 September 2011 through 27 September 2011
ER -