Speaker
Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)
No
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
PhD
Main supervisor (name and email)<br>and his / her institution
Iyabo Usman (Iyabo.Usman@wits.ac.za
Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?
No
Apply to be<br> considered for a student <br> award (Yes / No)?
Yes
Abstract content <br> (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>
Proton inelastic-scattering experiments have been carried out on the neutron-rich isotopes of calcium, 42,44,48Ca at zero-degrees using the high-energy resolution K600 Magnetic Spectrometer of iThemba LABS with a view to investigating the fine structure in the region of the Isovector Giant Dipole Resonance (IVGDR). Excellent energy resolutions were achieved with ∆E(FWHM)≈ 30 KeV for 44Ca and ∆E(FWHM)≈ 40 KeV for 42,48Ca leading to clear observation of fine structure thus allowing for an understanding of the damping of the resonance by comparison with state-of-the-art microscopic theoretical calculations. Double differential cross-sections have been extracted from the data obtained for each of the isotopes. Equivalent photo-absorption cross-sections were obtained from the measured data using virtual-photon production rates which agree well with those photo-absorption cross-sections already reported in the literature. In addition, preliminary results of the extracted characteristic energy scales are presented and future prospects are discussed.
