Nuclide reference
C-15 — Carbon-15
The half-life of C-15 is 2.449 s. Main decay mode: β⁻ decay to N-15 (100%).
Identification
- Element
- Carbon (C)
- Atomic number Z
- 6
- Mass number A
- 15
- State
- Radioactive
Key quantities
- Half-life
- 2.449 s
- Specific activity
- 1.136e+22 Bq/g
- Gamma constant Γ
- —
- D-value (НП-067-24)
- —
Decay modes
- β⁻ decay → N-15 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 5,297.82 | 63.2 |
| 8,310.15 | 0.032 |
| 9,046.78 | 0.031 |
| 7,298.92 | 0.0095 |
| 3,300.85 | 0.0084 |
| 6,322.35 | 0.0055 |
| 8,568.77 | 0.0043 |
| 3,013.47 | 0.0041 |
| 5,269.16 | 0.0037 |
| 1,011.75 | 0.0018 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 4,472.9 | 63.2 |
| 9,771.7 | 36.8 | |
| 1,459.1 | 0.041 | |
| 721.99 | 0.034 |
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.