Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996rmxf...42...92g&link_type=abstract
Revista Mexicana de Fisica, Vol. 42, No. 1, p. 92 - 100
Astronomy and Astrophysics
Astrophysics
Nuclear Reactions: Astrophysics
Scientific paper
The technique of accelerator mass spectrometry is widely used to perform ultrasensitive measurements of concentrations of rare isotopes in samples placed in the ion source of the accelerator system. The high selectivity of high-energy magnetic and electrostatic analyses and the capabilities of particle identification methods can be equally exploited when rare isotopes are generated in the system by the interaction of the primary beam with a solid or gaseous target. Slight modifications of an AMS system lay-out allow the measurement of low reaction cross sections of special interest to nuclear astrophysics. A project aiming to provide an improved value for the cross section of the astrophysically important reaction 7Be(p, γ)8B is presented and results of a test measurement of 12C(p, γ)13N reaction, showing the feasibility of the method, are reported. Advantages, limitations and possible extensions in the applications of this technique are discussed.
Brand Kate
Campajola L.
D'Onofrio Alberto
Gialanella Lucio
Greife Uwe
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