Nuclide reference
Ga-72 — Gallium-72
The half-life of Ga-72 is 14.1 h. Main decay mode: β⁻ decay to Ge-72 (100%).
Identification
- Element
- Gallium (Ga)
- Atomic number Z
- 31
- Mass number A
- 72
- State
- Radioactive
Key quantities
- Half-life
- 14.1 h
- Specific activity
- 1.142e+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 → Ge-72 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 834.13 | 95.45 |
| 2,201.59 | 26.87 |
| 629.967 | 26.13 |
| 2,507.72 | 13.33 |
| 894.327 | 10.14 |
| 2,491.03 | 7.731 |
| 1,050.79 | 6.991 |
| 600.912 | 5.822 |
| 1,862 | 5.412 |
| 1,596.73 | 4.39 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 961.48 | 28.87 |
| 671.89 | 22.43 | |
| 655.37 | 15.71 | |
| 2,533.2 | 9.38 |
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.