The activation method for cross section measurements in nuclear astrophysics

  title={The activation method for cross section measurements in nuclear astrophysics},
  author={Gy. Gy{\"u}rky and Zs. F{\"u}l{\"o}p and Franz K{\"a}ppeler and G. G. Kiss and Anton Wallner},
  journal={The European Physical Journal A},
The primary aim of experimental nuclear astrophysics is to determine the rates of nuclear reactions taking place in stars in various astrophysical conditions. These reaction rates are an important ingredient for understanding the elemental abundance distribution in our solar system and the galaxy. The reaction rates are determined from the cross sections which need to be measured at energies as close to the astrophysically relevant ones as possible. In many cases the final nucleus of an… 

Cross-section measurements relevant for the astrophysical p process at the University of Cologne

The astrophysical p process unites all processes that have been introduced to explain the abundance of a group of 30 to 35 neutron-deficient nuclei which are referred to as p nuclei. In general, these

Cross section of α -induced reactions on Au197 at sub-Coulomb energies

Statistical model calculations have to be used for the determination of reaction rates in large-scale reaction networks for heavy-element nucleosynthesis. A basic ingredient of such a calculation is

Cross-section measurements of radiative proton-capture reactions in Cd112 at energies of astrophysical interest

Reactions involving the group of nuclei commonly known as p nuclei are part of the nucleosynthetic mechanisms at astrophysical sites. The $^{113}$In nucleus is such a case with several open questions

Radiative proton–capture reactions with 112,114Cd at astrophysically important energies

The reaction network in the neutron-deficient part of the nuclear chart around A ≈ 100 contains several nuclei of importance to astrophysical processes, such as the p–process. This work reports on

Constraining nuclear properties in Mo94 via a Nb93(p,γ)Mo94 total cross section measurement

Background: The nucleosynthesis of the group of neutron-deficient $p$ nuclei remains an unsolved puzzle in nuclear astrophysics. Among these nuclei, $^{94}\mathrm{Mo}$ is one of the most abundant and

Stable beam experiments in wide energy ranges serving low energy nuclear astrophysics

  • G. Gyürky
  • Physics
    Journal of Physics: Conference Series
  • 2020
In experimental nuclear astrophysics it is common knowledge that reaction cross sections must be measured in the astrophysically relevant, low energy ranges or at least as close to them as possible.

Activation cross section measurement of the 100Mo(α,n)103Ru reaction for optical potential studies

The light neutron-rich nuclei can be synthesized via (α,n) reactions in the so-called weak r-process. The abundances of these species are derived using reaction network calculations. Such a

Measurement of radiative α-capture cross sections on 98Ru and 144Sm for γ-process nucleosynthesis

Since p isotopes cannot be produced in neutron-capture reaction networks, a production mechanism via photodisintegration reactions was proposed - the γ process. The specifc path of this reaction