All tools

Nuclide reference

C-10 — Carbon-10

The half-life of C-10 is 19.29 s. Main decay mode: β⁺ decay / electron capture to B-10 (100%).

Identification

Element
Carbon (C)
Atomic number Z
6
Mass number A
10
State
Radioactive

Key quantities

Half-life
19.29 s
Specific activity
2.164e+21 Bq/g
Gamma constant Γ
—
D-value (НП-067-24)
—

Decay modes

  • β⁺ decay / electron capture → B-10 — 100 %

Main gamma lines

Energy, keVYield, %
510.999 · annihilation 511 keV199.9
718.353100
1,021.651.462

Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.

Alpha and beta particles

RadiationEnergy, keVYield, %
β⁺, E max1,907.698.5
885.951.46

For β⁺ the endpoint (maximum) energy of the spectrum is given. ENDF/B-VIII.0.

Related calculators

DecayActivity ↔ massDose rate

Other isotopes of this element

C-11C-14
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.

Carbon-10 (C-10) — reference data

What is in the card

This card gathers the key data of radionuclide C-10 in one place: half-life, decay modes, main gamma lines, alpha and beta particle energies, gamma constant, specific activity and the D-value for source categorization. Decay and emission data are from ENDF/B-VIII.0; the D-value follows NP-067-24; the gamma constant is the ambient dose equivalent H*(10) at 1 m, computed from ICRP-107 spectra.

How to use the data

Half-life and specific activity let you recalculate the activity of a C-10 source to the delivery or disposal date — use the decay calculator. Gamma lines with yields identify the nuclide from a spectrum and pick the line for gamma spectrometry; the gamma constant Γ gives the dose rate at a distance, while the D-value and A1/A2 set the source category and the package type for transport.