Nuclide reference
Sc-47 — Scandium-47
The half-life of Sc-47 is 3.3492 d. Main decay mode: β⁻ decay to Ti-47 (100%).
Identification
- Element
- Scandium (Sc)
- Atomic number Z
- 21
- Mass number A
- 47
- State
- Radioactive
Key quantities
- Half-life
- 3.3492 d
- Specific activity
- 3.069e+16 Bq/g
- Gamma constant Γ
- —
- A1 / A2 for transport (SSR-6, НП-053-16)
- 10 TBq / 0.7 TBq
- D-value (НП-067-24)
- 0.7 TBq
Decay modes
- β⁻ decay → Ti-47 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 159.381 | 68.3 |
| 4.51 · X-ray line | 0.03526 |
| 4.504 · X-ray line | 0.01791 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 440.92 | 68.4 |
| 600.3 | 31.6 |
For β⁻ the endpoint (maximum) energy of the spectrum is given. ENDF/B-VIII.0.
Related calculators
Reference data vs computed valuesHalf-life, gamma lines and D-value are reference data (ENDF/B-VIII.0, НП-067-24).Gamma constant Γ is H*(10) at 1 m computed from ICRP-107 spectra (NIST µ_en/ρ, ICRP-74 Table A.21) including short-lived progeny in equilibrium (e.g. Cs-137/Ba-137m, Ra-226 series); specific activity uses molar mass M ≈ mass number A.K-series X-ray energies are from NIST SRD 128 (Deslattes et al., 2003): in ENDF/B-VIII.0 they are given to 1 % and shifted by up to 0.7 keV for heavy elements. L-series lines and all yields are ENDF/B-VIII.0.