Nuclide reference
Re-188 — Rhenium-188
The half-life of Re-188 is 17.004 h. Main decay mode: β⁻ decay to Os-188 (100%).
Identification
- Element
- Rhenium (Re)
- Atomic number Z
- 75
- Mass number A
- 188
- State
- Radioactive
Key quantities
- Half-life
- 17.004 h
- Specific activity
- 3.627e+16 Bq/g
- Gamma constant Γ
- —
- A1 / A2 for transport (SSR-6, НП-053-16)
- 0.4 TBq / 0.4 TBq
- D-value (НП-067-24)
- 1 TBq
Decay modes
- β⁻ decay → Os-188 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 155.041 | 15.61 |
| 63 · X-ray line | 2.444 |
| 61.487 · X-ray line | 1.419 |
| 632.983 | 1.374 |
| 477.992 | 1.081 |
| 931.345 | 0.597 |
| 829.47 | 0.445 |
| 634.98 | 0.161 |
| 672.535 | 0.1214 |
| 1,610.4 | 0.1095 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 2,120.3 | 70 |
| 1,965.2 | 26.3 | |
| 1,487.3 | 1.748 | |
| 1,033.9 | 0.685 |
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.