Nd
Neodymium
Z = 60 · Lanthanide · 144.2 u
Nuclear Engineering Significance
Important fission product for burnup determination. Nd-148 has a well-known fission yield and is the standard isotope used for destructive burnup analysis (Nd-148 method). Nd-143 (σ_a = 325 b) acts as a neutron poison. Several Nd isotopes serve as stable fission product shielding in burnup credit criticality safety analyses.
Basic properties
- Atomic number (Z)
- 60
- Standard atomic mass
- 144.2 u
- Category
- Lanthanide
Isotopes & cross-section data
View in ALLEN →| Isotope | Mass (A) | Half-life | ZAID | Libraries | σ(E) |
|---|---|---|---|---|---|
| Nd-143 | 143 | Stable | .80c.71c | View → | |
| Nd-145 | 145 | Stable | .80c.71c | View → | |
| Nd-148 | 148 | Stable | .80c.71c | View → |