In the realm of nuclear physics, a team of researchers from the Indian Institute of Technology Madras, led by N. Susshma, has been delving into the intricate structures of odd-odd light rare-earth nuclei. Their recent work, published in the prestigious journal Physical Review C, sheds light on the potential existence of new isomeric states in the neutron-rich isotopes Terbium-162 and Terbium-164. This research, while seemingly esoteric, holds promise for advancements in nuclear energy and medical applications.
The journey began with mass spectrometry studies conducted by Orford et al. in 2020, which hinted at the presence of new isomers in Terbium-162 and Terbium-164. However, subsequent work by Stryjczyk et al. in 2025 raised questions about the consistency of the data supporting the isomer in Terbium-162. To resolve these inconsistencies and further investigate the possibility of isomeric states, Susshma and her team employed the well-established Two Quasiparticle Rotor Model. This model is a powerful tool for constructing the low-lying level structure of nuclei, providing insights into their energy states and configurations.
The researchers’ findings support the potential existence of low-lying isomeric states in both Terbium-162 and Terbium-164. They proposed specific spin-parities, orbital configurations, and excitation energies for these isomers. Isomers are nuclei that exist in a metastable state, meaning they are stable for a certain period before decaying into a more stable state. Understanding these isomeric states is crucial for several reasons.
In the energy sector, a deeper understanding of nuclear structures can lead to advancements in nuclear energy production. For instance, isomers can be used in nuclear batteries, which are devices that convert the energy released from nuclear decay into electrical energy. These batteries have the potential to provide long-lasting, reliable power sources for various applications, including space exploration and remote sensing.
Moreover, the medical field also benefits from research into nuclear isomers. Isomers can be used in targeted alpha therapy, a type of radiation therapy that uses alpha particles to treat cancer. The precise targeting capabilities of this therapy can minimize damage to healthy tissues while effectively treating cancerous cells.
In conclusion, the work of Susshma and her team at the Indian Institute of Technology Madras represents a significant step forward in our understanding of nuclear structures. Their findings not only resolve previous inconsistencies but also open up new avenues for exploration in both the energy and medical sectors. As research continues, the practical applications of these discoveries are likely to become even more apparent. The research was published in Physical Review C, a leading journal in the field of nuclear physics.
This article is based on research available at arXiv.