W
Tungsten
Z = 74 · Transition Metal · 183.8 u
Nuclear Engineering Significance
Primary shielding and structural material candidate for fusion reactor first-wall and divertor applications due to its high melting point and high-Z gamma shielding. Thermal absorption (σ_a = 18.3 b) is moderate. Tungsten is used in gamma-ray shielding and some specialized fission reactor shielding applications.
Basic properties
- Atomic number (Z)
- 74
- Standard atomic mass
- 183.8 u
- Category
- Transition Metal
Isotopes & cross-section data
View in ALLEN →| Isotope | Mass (A) | Half-life | ZAID | Libraries | σ(E) |
|---|---|---|---|---|---|
| W-182 | 182 | Stable | .80c.71c.70c | View → | |
| W-183 | 183 | Stable | .80c.71c.70c | View → | |
| W-184 | 184 | Stable | .80c.71c.70c | View → | |
| W-186 | 186 | Stable | .80c.71c.70c | View → |