Ion Optics Feasibility Study of the Astrophyscial 33,34m Cl(p, γ) Reactions at the CRYRING

This thesis is a feasibility study of the resonant 33 Cl(p, γ) 34 Ar and 34m Cl(p, γ) 35 Ar proton capture reactions, for stellar energies occurring in novae, at the new storage ring CRYRING at GSI. These re- action rates would be measured by detecting the yields of 34,35 Ar fusion recoils exiting the CRYRING hydrogen gas jet target; thereby requiring particle identification detectors suitably positioned down- stream of the target. The Rutherford elastic scattering yield, of the 33,34m Cl beam in the hydrogen gas target, arriving on such detectors must be severely limited in order to prevent destruction of the detectors and to prevent significant acquisition dead times. This study has therefore aimed at determ- ining the elastic yield contribution at three candidate detector positions downstream of the CRYRING target. We report that the position before the second quadrupole in section YR10 of the CRYRING has the lowest elastically scattered 33,34m Cl yield and at the same time a good coverage of the 34,35 Ar fusion products. All resonance energies of 33 Cl(p, γ) 34 Ar and 34m Cl(p, γ) 35 Ar are measurable, if the target density is adjusted.