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Radionuclide Dosimetric Data Sheets
Silver-110m
Summary data
General
Classification
Isotope: Ag-110m
Atomic number (Z): 47
Mass number (A): 110
Neutron number (N): 63
Radioactive decay
Decay modes: β-, Internal transition
Half-life: 249.8 [d]
Decay constant: 3.2121e-08 [1/s]
Daughters: Ag-110 (1.36%), Cd-110 (98.6%)
Radioactive daughters: Ag-110
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.07576 [MeV]
Mean photon energy: 2.76056 [MeV]
Air kerma rate constant, Γ10: 9.938e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 9.938e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.214e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for alphas, Δα: 0.000e+00
[Gy·kg/Bq·s]
Equilibrium dose constant for betas/electrons, Δβ-,β+,e-:
1.214e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 4.423e-13
[Gy·kg/Bq·s]
Dose point kernels (plot)
Dose point kernel source: Graves, et al. Medical Physics. 2019 Nov.; 46(11):5284-5293.
Note: Bins are spaced every 0.1 mm until a radius of 10 cm, and every 1 mm until a radius of 2 m.
Download tabulated dose point kernel file here: www.mirdsoft.org/products/MIRDspecs/Ag-110m DPK.csv
Summary spectra (plot)
Spectra source: ICRP Publication 107: Nuclear Decay Data for Dosimetric Calculations. Ann. ICRP 2008, 38 (3).
Download tabulated summary spectra file here: www.mirdsoft.org/products/MIRDspecs/Ag-110m Summary Spectrum.csv
Beta spectra (plot)
Spectra source: ICRP Publication 107: Nuclear Decay Data for Dosimetric Calculations. Ann. ICRP 2008, 38 (3).
Download tabulated beta spectra file here: www.mirdsoft.org/products/MIRDspecs/Ag-110m Beta Spectrum.csv
Tabulated data
Summary spectra (table)
Spectra source: ICRP Publication 107: Nuclear Decay Data for Dosimetric Calculations. Ann. ICRP 2008, 38 (3).
Note: Radiations with yield < 0.01 are excluded from the table, but are available in the linked *.csv data.
Download tabulated summary spectra file here: www.mirdsoft.org/products/MIRDspecs/Ag-110m Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.20772e-05 |
1.449e-01 |
X-ray |
|
1.71481e-05 |
5.431e-02 |
X-ray |
|
4.46812e-01 |
3.621e-02 |
Gamma |
|
6.20355e-01 |
2.669e-02 |
Gamma |
|
6.57760e-01 |
9.430e-01 |
Gamma |
|
6.77622e-01 |
1.056e-01 |
Gamma |
|
6.87009e-01 |
6.441e-02 |
Gamma |
|
7.06676e-01 |
1.632e-01 |
Gamma |
|
7.44276e-01 |
4.772e-02 |
Gamma |
|
7.63942e-01 |
2.261e-01 |
Gamma |
|
8.18024e-01 |
7.337e-02 |
Gamma |
|
8.84678e-01 |
7.271e-01 |
Gamma |
|
9.37485e-01 |
3.423e-01 |
Gamma |
|
1.38429e+00 |
2.490e-01 |
Gamma |
|
1.47578e+00 |
4.168e-02 |
Gamma |
|
1.50503e+00 |
1.360e-01 |
Gamma |
|
1.56229e+00 |
1.244e-02 |
Gamma |
|
2.16092e-02 |
6.693e-01 |
Beta |
|
1.65225e-01 |
3.013e-01 |
Beta |
|
3.67868e-05 |
1.916e-02 |
Auger electron |
|
3.77881e-05 |
5.242e-02 |
Auger electron |
|
1.26789e-04 |
1.384e-02 |
Auger electron |
|
3.18321e-04 |
3.684e-02 |
Auger electron |
|
3.45256e-04 |
1.341e-02 |
Auger electron |
|
5.91470e-04 |
1.214e-02 |
Conversion electron |
Useful Links
Isotope decay characteristics are periodically updated as better measurements can be made - changes that may not be reflected on this page. Please see useful links:
National Nuclear Data Center (NNDC): https://www.nndc.bnl.gov/nudat3/mird/
International Atomic Energy Agency (IAEA) Livechart: https://www-nds.iaea.org/relnsd/vcharthtml/VChartHTML.html
Reference Links
ICRP Report 107: https://www.icrp.org/publication.asp?id=ICRP%20Publication%20107
Graves et al. Dose Point Kernels: https://doi.org/10.1002/mp.13789
MIRD Decay Schemes 2nd Edition: https://sites.snmmi.org/SNMMI-MAIN/iCore/Store/StoreLayouts/Item_Detail.aspx?iProductCode=0-932004-80-6
MIRDsoft MIRDspecs version 20250101 (www.mirdsoft.org)
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