<= Return to MIRDspec isotope database
Radionuclide Dosimetric Data Sheets
Silver-113m
Summary data
General
Classification
Isotope: Ag-113m
Atomic number (Z): 47
Mass number (A): 113
Neutron number (N): 66
Radioactive decay
Decay modes: β-, Internal transition
Half-life: 68.7 [s]
Decay constant: 1.0089e-02 [1/s]
Daughters: Ag-113 (64.0%), Cd-113 (36.0%)
Radioactive daughters: Ag-113, Cd-113
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.22779 [MeV]
Mean photon energy: 0.2134 [MeV]
Air kerma rate constant, Γ10: 8.599e-18 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 8.599e-18 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 3.650e-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-:
3.650e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 3.419e-14
[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-113m 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-113m 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-113m 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-113m Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.20814e-05 |
4.132e+00 |
X-ray |
|
1.71311e-05 |
7.270e-01 |
X-ray |
|
2.97344e-03 |
1.422e-02 |
X-ray |
|
2.19609e-02 |
1.354e-02 |
X-ray |
|
2.21389e-02 |
2.551e-02 |
X-ray |
|
1.42200e-01 |
2.911e-02 |
Gamma |
|
2.49900e-01 |
1.111e-02 |
Gamma |
|
2.98300e-01 |
1.014e-01 |
Gamma |
|
3.16100e-01 |
1.764e-01 |
Gamma |
|
3.92300e-01 |
1.111e-01 |
Gamma |
|
5.83800e-01 |
3.616e-02 |
Gamma |
|
7.08300e-01 |
3.528e-02 |
Gamma |
|
3.70833e-01 |
1.816e-02 |
Beta |
|
4.97912e-01 |
1.632e-01 |
Beta |
|
5.52205e-01 |
4.401e-02 |
Beta |
|
6.07614e-01 |
1.100e-02 |
Beta |
|
6.71028e-01 |
1.064e-01 |
Beta |
|
3.65083e-05 |
2.648e-01 |
Auger electron |
|
3.79325e-05 |
1.499e+00 |
Auger electron |
|
1.23815e-04 |
7.660e-02 |
Auger electron |
|
1.29389e-04 |
4.283e-01 |
Auger electron |
|
1.33849e-04 |
4.000e-02 |
Auger electron |
|
1.73105e-04 |
4.336e-02 |
Auger electron |
|
3.18784e-04 |
1.020e+00 |
Auger electron |
|
3.47682e-04 |
1.694e-01 |
Auger electron |
|
2.49529e-03 |
3.993e-01 |
Auger electron |
|
2.65793e-03 |
5.869e-02 |
Auger electron |
|
2.90181e-03 |
8.644e-02 |
Auger electron |
|
3.11035e-03 |
1.370e-02 |
Auger electron |
|
1.38059e-02 |
5.724e-02 |
Conversion electron |
|
1.71874e-02 |
1.224e-02 |
Conversion electron |
|
1.81110e-02 |
5.641e-02 |
Conversion electron |
|
4.00719e-02 |
1.959e-01 |
Conversion electron |
|
4.02500e-02 |
2.679e-01 |
Conversion electron |
|
4.30315e-02 |
9.894e-02 |
Conversion electron |
|
4.36000e-02 |
1.688e-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)
<= Return to MIRDspec isotope database
