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Nuclide reference

Ag-110 — Silver-110

The half-life of Ag-110 is 24.6 s. Main decay mode: β⁻ decay to Cd-110 (99.7%).

Identification

Element
Silver (Ag)
Atomic number Z
47
Mass number A
110
State
Radioactive

Key quantities

Half-life
24.6 s
Specific activity
1.543e+20 Bq/g
Gamma constant Γ
—
D-value (НП-067-24)
—

Decay modes

  • β⁻ decay → Cd-110 — 99.7 %
  • electron capture → Pd-110 — 0.3 %

Main gamma lines

Energy, keVYield, %
657.54.496
21.177 · X-ray line0.1194
21.021 · X-ray line0.06322
815.50.03822
1,125.80.01529
818.20.008993
295.30.007644
1,674.30.007194
1,783.60.004496
1,475.80.003597

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

Alpha and beta particles

RadiationEnergy, keVYield, %
β⁻, E max2,892.294.91
2,234.74.407
1,419.20.03809
1,108.90.01206

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

Related calculators

DecayActivity ↔ massDose rate
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.K-series X-ray energies are from NIST SRD 128 (Deslattes et al., 2003): in ENDF/B-VIII.0 they are given to 1 % and shifted by up to 0.7 keV for heavy elements. L-series lines and all yields are ENDF/B-VIII.0.

Silver-110 (Ag-110) — reference data

What is in the card

This card gathers the key data of radionuclide Ag-110 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 Ag-110 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.