A CVD diamond detector for (n,alpha) cross section measurements

C. Weiss, G. Badurek, E. Berthoumieux, M. Calviani, E. Chiaveri, D. Dobos, E. Griesmayer, C. Guerrero, E. Jericha, F. Kaeppeler, H. Leeb, T. Rauscher, V. Vlachoudis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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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.
Original languageEnglish
Title of host publicationExperimental Nuclear Astrophysics
Number of pages8
Publication statusPublished - Jan 2012
EventVI European Summer School on Experimental Nuclear Astrophysics (ENAS6) - Acireale, Italy
Duration: 18 Sept 201127 Sept 2011

Publication series

NameProceedings of Science
VolumeENAS 6
ISSN (Electronic)1824-8039


ConferenceVI European Summer School on Experimental Nuclear Astrophysics (ENAS6)


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