Speaker
Summary
The radionuclide 155Tb is a promising candidate for nuclear medicine, but its large-scale production remains challenging. To address this, excitation functions for the 18O + 146Nd system were measured at IUAC, New Delhi, using the stack-foil activation technique and offline γ-ray spectrometry with 18O beams from the 15UD Pelletron accelerator. Data were obtained over the 3–7 MeV/nucleon range and complemented by PACE4 model calculations. Thick target yields of 155Tb were derived, and co-produced isotopes were analyzed to assess radionuclidic purity. Results show that 155Tb cross-sections are significant and exceed theoretical predictions, with the advantage that no other terbium isotope is formed in this channel. A comparative study with 16O + 146Nd and 16O + 148Nd systems demonstrates clear differences in production efficiency and purity, highlighting optimal conditions for practical 155Tb generation.
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