Nuclide reference
Rh-105 — Rhodium-105
The half-life of Rh-105 is 1.4733 d. Main decay mode: β⁻ decay to Pd-105 (100%).
Identification
- Element
- Rhodium (Rh)
- Atomic number Z
- 45
- Mass number A
- 105
- State
- Radioactive
Key quantities
- Half-life
- 1.4733 d
- Specific activity
- 3.123e+16 Bq/g
- Gamma constant Γ
- —
- A1 / A2 for transport (SSR-6, НП-053-16)
- 10 TBq / 0.8 TBq
- D-value (НП-067-24)
- 0.9 TBq
Decay modes
- β⁻ decay → Pd-105 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 319.231 | 19.1 |
| 306.311 | 5.272 |
| 21.177 · X-ray line | 0.2252 |
| 280.523 | 0.1729 |
| 21.021 · X-ray line | 0.1193 |
| 442.417 | 0.04011 |
| 38.72 | 0.02483 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 567.1 | 75.1 |
| 247.87 | 19.5 | |
| 260.79 | 5.37 | |
| 124.68 | 0.0404 |
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.