Study of $(\mathbf{\alpha },\mathbf{p})$ and $(\mathbf{\alpha },\mathbf{n})$ reactions with a Multi-Sampling Ionization Chamber

Abstract

A large number of $(\alpha ,p)$ and $(\alpha ,n)$ reactions are known to play a fundamental role in nuclear astrophysics. This work presents a novel technique to study these reactions with the active target system MUSIC whose segmented anode allows the investigation of a large energy range of the excitation function with a single beam energy. In order to verify the method, we performed a direct measurements of the previously measured reactions ${}^{17}$O$(\alpha ,n{)}^{20}$Ne, ${}^{23}$Na$(\alpha ,p{)}^{26}$Mg, and ${}^{23}$Na$(\alpha ,n{)}^{26}$Al. These reactions were investigated in inverse kinematics using ${}^4$He gas in the detector to study the excitation function in the range of about 2 to 6 MeV in the center of mass. We found good agreement between the cross sections of the ${}^{17}$O$(\alpha ,n{)}^{20}$Ne reaction measured in this work and previous measurements. Furthermore we have successfully performed a simultaneous measurement of the ${}^{23}$Na$(\alpha ,p{)}^{26}$Mg and ${}^{23}$Na$(\alpha ,n{)}^{26}$Al reactions.

References in corpus (4)

• Towards a More Complete and Accurate Experimental Nuclear Reaction Data Library (EXFOR): International Collaboration Between Nuclear Reaction Data Centres (NRDC)
• The Effects of Thermonuclear Reaction-Rate Variations on 26Al Production in Massive Stars: a Sensitivity Study
• Cross sections of $\alpha$-induced reactions for targets with masses $A\approx 20-50$ at low energies
• Study of the astrophysically important ${}^{23}\mathrm{Na}(\mathbf{\alpha },\mathbf{p}{)}^{26}\mathrm{Mg}$ and ${}^{23}\mathrm{Na}(\mathbf{\alpha },\mathbf{n}{)}^{26}\mathrm{Al}$ reactions

Cited by in corpus (6)

• Horizons: Nuclear Astrophysics in the 2020s and Beyond
• Study of the ${}^{22}$Mg waiting point relevant for x-ray burst nucleosynthesis via the ${}^{22}$Mg($\alpha$,$p$)${}^{25}$Al reaction
• MuSIC@Indiana: an effective tool for accurate measurement of fusion with low-intensity radioactive beams
• Uncertainty of the astrophysical ${}^{17,18}$O($\alpha$,n)${}^{20,21}$Ne reaction rates and the applicability of the statistical model for nuclei with $A\lesssim 20$
• Perspectives on few-body cluster structures in exotic nuclei
• A Vision for the Science of Rare Isotopes