UNISA-Brazil Symposium

Session

Session 2

28 Oct 2026, 10:10

Conveners

Session 2

• Tshegofatso Tshipi (Sol Plaatje University)

42. [PLENARY TOPIC] Developing Radiation Protection Capacity in South Africa's NORM-Regulated Mining Industry Through Industry-Academic Collaboration

Riaan van der Westhuizen (Palaborwa Mining Company, South Africa)

28/10/2026, 10:10

Oral Presentation

The regulation of Naturally Occurring Radioactive Material (NORM) in South Africa expanded beyond the traditional nuclear sector with the authorisation of mining activities in 1993, bringing industries such as gold, copper, phosphate, mineral sands and rare earth mining and minerals processing under formal radiation protection requirements. Compliance with the regulatory framework requires...

5. Two Observables, One FRB Population, Self-Calibrating Electron Bias for Primordial Non-Gaussianity.

Sim Dlamini (UNISA)

28/10/2026, 10:50

Oral Presentation

Fast radio bursts (FRBs) offer a promising new probe of primordial non-Gaussianity (PNG) through the scale-dependent bias signature imprinted on their dispersion measures (DMs). However, this signal is degenerate with the poorly-known IGM electron bias $b_e$, degrading constraints on $f_{\rm NL}$ by factors of 1.7–3.3 once this bias is properly marginalized. In this talk, I present a new...

32. From Breakup to Fusion: The Evolution of a CDCC-Based Description of Complete and Incomplete Fusion in Weakly Bound Nuclear Systems

Jeannie Rangel Borges (Universidade do Estado do Rio de Janeiro (UERJ))

28/10/2026, 11:10

Oral Presentation

Fusion reactions involving weakly bound nuclei are strongly influenced by breakup couplings, leading to a complex interplay between complete (CF), incomplete (ICF), and total fusion (TF). A fully quantum-mechanical description of these processes remains challenging, as standard CDCC calculations naturally provide total absorption but do not directly distinguish the different fusion mechanisms....