Nuclide reference
I-134 — Iodine-134
The half-life of I-134 is 52.5 min. Main decay mode: β⁻ decay to Xe-134 (100%).
Identification
- Element
- Iodine (I)
- Atomic number Z
- 53
- Mass number A
- 134
- State
- Radioactive
Key quantities
- Half-life
- 52.5 min
- Specific activity
- 9.889e+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)
- 0.03 TBq
Decay modes
- β⁻ decay → Xe-134 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 847.025 | 95.7 |
| 884.09 | 65.08 |
| 1,072.55 | 14.93 |
| 595.362 | 11.1 |
| 621.79 | 10.62 |
| 1,136.16 | 9.092 |
| 677.34 | 7.943 |
| 540.825 | 7.656 |
| 405.451 | 7.369 |
| 857.29 | 6.699 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 1,184.6 | 30.4 |
| 1,463.6 | 16.2 | |
| 2,320.8 | 12.6 | |
| 1,699 | 11 |
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.