Nuclide reference
Y-93 — Yttrium-93
The half-life of Y-93 is 10.18 h. Main decay mode: β⁻ decay to Zr-93 (100%).
Identification
- Element
- Yttrium (Y)
- Atomic number Z
- 39
- Mass number A
- 93
- State
- Radioactive
Key quantities
- Half-life
- 10.18 h
- Specific activity
- 1.225e+17 Bq/g
- Gamma constant Γ
- —
- A1 / A2 for transport (SSR-6, НП-053-16)
- 0.3 TBq / 0.3 TBq
- D-value (НП-067-24)
- 0.6 TBq
Decay modes
- β⁻ decay → Zr-93 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 266.9 | 7.32 |
| 947.1 | 2.093 |
| 1,917.8 | 1.545 |
| 680.2 | 0.6578 |
| 1,450.5 | 0.327 |
| 1,425.4 | 0.2445 |
| 2,190.8 | 0.1688 |
| 2,184.6 | 0.1568 |
| 1,203.3 | 0.1073 |
| 273 | 0.07125 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 2,895 | 89.6 |
| 2,628.1 | 4.8 | |
| 1,947.9 | 2.7 | |
| 710.38 | 1.68 |
For β⁻ the endpoint (maximum) energy of the spectrum is given. ENDF/B-VIII.0.
Related calculators
Other isotopes of this element
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.