Determining the spectroscopic quadrupole moment of the first 2+ state in 36Ar
| dc.contributor.advisor | Orce, Nico | |
| dc.contributor.author | Montes, Elias Jose Martin | |
| dc.date.accessioned | 2019-07-17T07:34:06Z | |
| dc.date.accessioned | 2024-10-30T10:24:04Z | |
| dc.date.available | 2019-07-17T07:34:06Z | |
| dc.date.available | 2024-10-30T10:24:04Z | |
| dc.date.issued | 2019 | |
| dc.description | Masters of Science | en_US |
| dc.description.abstract | A series of reorientation-effect Coulomb-excitation experiments were carried out at iThemba LABS from April to May 2016. Enriched ion beams of Ar, Ar and S were bombarded at safe energies, well below the Coulomb barrier, onto a heavyPt target with thickness 1mg/cm2. The three experiments were performed to determine the spectroscopic or static quadrupole moment 𝑄, of the first excitation 2 in these nuclei in order to shed light on the zip-zap of nuclear shapes found at the end of the sd shell. This thesis will be dealing with the particular case of Ar, accelerated at a safe bombarding energy of 134.2 MeV. For this purpose, a particle-gamma coincidence experiment has been carried out using the AFRODITE array composed of 8 high-purity germanium clover detectors to detect the de-exciting gamma energies, coupled to a double-sided CD-type S3 silicon detector at backward angles composed of 32 sectors and 24 rings to detect the scattering particles. A new optimised sorting code has been developed which included fast computing processing, non-Doppler (194Pt) and Doppler correction (36Ar), add-back, and energysharing, particle and time tagging conditions. The peaks of interests in the spectra were analysed using the Coulombexcitation code GOSIA. Using the normalization method, a more precise determination of 𝑄2 0.093 eb has been accomplished. | en_US |
| dc.identifier.uri | https://hdl.handle.net/10566/16711 | |
| dc.language.iso | en | en_US |
| dc.publisher | University of the Western Cape | en_US |
| dc.rights.holder | University of the Western Cape | en_US |
| dc.title | Determining the spectroscopic quadrupole moment of the first 2+ state in 36Ar | en_US |