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 (fuels, moderators, structural materials, fission products, etc.). For full isotope data, see NNDC NuDat 3 or IAEA Nuclear Data Services.