Tl
Thallium
Z = 81 · Post-Transition Metal · 204.4 u
Nuclear Engineering Significance
Not commonly used in reactor systems. Tl-208 (from the Th-232 decay chain) produces a characteristic 2.61 MeV gamma ray that is important in thorium fuel cycle radiation protection and gamma spectroscopy measurements.
Basic properties
- Atomic number (Z)
- 81
- Standard atomic mass
- 204.4 u
- Category
- Post-Transition Metal
Isotopes & cross-section data
No nuclide data for this element in the reference database.
The NRDP database focuses on nuclides relevant to reactor physics. For full isotope data, see NNDC NuDat 3.