Nuclide reference
I-132 — Iodine-132
The half-life of I-132 is 2.295 h. Main decay mode: β⁻ decay to Xe-132 (100%).
Identification
- Element
- Iodine (I)
- Atomic number Z
- 53
- Mass number A
- 132
- State
- Radioactive
Key quantities
- Half-life
- 2.295 h
- Specific activity
- 3.828e+17 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)
- 0.03 TBq
Decay modes
- β⁻ decay → Xe-132 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 667.714 | 98.7 |
| 772.6 | 75.6 |
| 954.55 | 17.57 |
| 522.65 | 15.99 |
| 630.19 | 13.32 |
| 1,398.57 | 7.008 |
| 812 | 5.527 |
| 505.79 | 4.935 |
| 669.8 | 4.639 |
| 671.4 | 3.455 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 1,186 | 19 |
| 2,140.7 | 19 | |
| 742.15 | 13 | |
| 1,618 | 12.3 |
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.