Conveners
Wednesday - Session 3
- Cesar Domingo Pardo (Univ. of Valencia and CSIC (ES))
Storage rings offer a unique approach to measure nuclear reactions using stored radioisotope beams impinging on ultra-pure internal targets. This approach has been pioneered at the ESR storage ring in GSI Laboratory (Germany).
The newly commissioned CRYRING, part of FAIR Phase-0, opens up new and ground-breaking possibilities for nuclear astrophysics at storage rings. CRYRING is the first...
Half the atomic nuclei heavier than iron are created through the s-process, i.e. a series of neutron captures and subsequent beta decays. Accordingly, the accuracy of neutron capture rates is of significant importance for these astrophysical calculations and for our understanding of the observed isotopic abundances [1]. In particular, fundamental input can be provided through the determination...
JRC Geel operates a neutron time-of-flight facility, based on an electron accelerator. At 11 flight paths experiments can be performed simultaneously, with available flight paths ranging from 5m to 400 m. Experimental setups to determine total and reaction cross sections ( capture, elastic and inelastic shattering, fission and charged particle reactions ) are available. Furthermore, during ...
The $^{22}\rm{Ne}(\alpha,\gamma)^{26}\rm{Mg}$ is an important reaction in stellar helium burning environments as it competes directly with one of the main neutron source for the s-process $^{22}\rm{Ne}(\alpha,n)^{25}\rm{Mg}$ reaction. The reaction rate of the $^{22}\rm{Ne}(\alpha,\gamma)^{26}\rm{Mg}$ reaction is dominated by low energy energy resonances at $E_{R}^{lab}$ = 0.65, 0.83 MeV. The...
$(\alpha,n)$ reactions provide a source for neutrons in many stellar environments, fueling the production of the heavy elements. The key $(\alpha,n)$ reactions for the $s$-process are thought to be $^{13}$C and $^{22}$Ne, but reactions on other nuclei, including $^{17,18}$O and $^{24,25}$Mg may also play important roles. In addition, $(\alpha,n)$ reactions are sources of background for...
