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Radionuclide Dosimetric Data Sheets
Silver-104
Summary data
General
Classification
Isotope: Ag-104
Atomic number (Z): 47
Mass number (A): 104
Neutron number (N): 57
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 69.2 [m]
Decay constant: 1.6694e-04 [1/s]
Daughters: Pd-104 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.09166 [MeV]
Mean photon energy: 2.70658 [MeV]
Air kerma rate constant, Γ10: 9.782e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 1.039e-16 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.469e-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-:
1.469e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 4.336e-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-104 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-104 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-104 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-104 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
7.85943e-06 |
6.838e+00 |
X-ray |
|
2.82809e-03 |
2.259e-02 |
X-ray |
|
2.98437e-03 |
1.071e-02 |
X-ray |
|
2.09884e-02 |
1.742e-01 |
X-ray |
|
2.11504e-02 |
3.291e-01 |
X-ray |
|
2.37657e-02 |
2.835e-02 |
X-ray |
|
2.37942e-02 |
5.510e-02 |
X-ray |
|
2.42659e-02 |
1.110e-02 |
X-ray |
|
2.63200e-01 |
1.019e-02 |
Gamma |
|
2.89700e-01 |
1.204e-02 |
Gamma |
|
3.62300e-01 |
1.296e-02 |
Gamma |
|
4.44500e-01 |
1.667e-02 |
Gamma |
|
4.79200e-01 |
1.019e-02 |
Gamma |
|
5.11000e-01 |
3.130e-01 |
Annihilation photon |
|
5.55800e-01 |
9.260e-01 |
Gamma |
|
6.23200e-01 |
2.500e-02 |
Gamma |
|
7.40500e-01 |
7.223e-02 |
Gamma |
|
7.58700e-01 |
6.389e-02 |
Gamma |
|
7.67600e-01 |
6.575e-01 |
Gamma |
|
7.85700e-01 |
9.538e-02 |
Gamma |
|
8.39700e-01 |
1.389e-02 |
Gamma |
|
8.57900e-01 |
1.037e-01 |
Gamma |
|
8.63000e-01 |
6.852e-02 |
Gamma |
|
9.08000e-01 |
4.445e-02 |
Gamma |
|
9.23300e-01 |
6.945e-02 |
Gamma |
|
9.25900e-01 |
1.250e-01 |
Gamma |
|
9.41600e-01 |
2.500e-01 |
Gamma |
|
1.07530e+00 |
2.130e-02 |
Gamma |
|
1.26520e+00 |
4.260e-02 |
Gamma |
|
1.34180e+00 |
7.315e-02 |
Gamma |
|
1.45120e+00 |
1.111e-02 |
Gamma |
|
1.52660e+00 |
7.130e-02 |
Gamma |
|
1.60020e+00 |
1.019e-02 |
Gamma |
|
1.62580e+00 |
5.093e-02 |
Gamma |
|
1.78180e+00 |
3.148e-02 |
Gamma |
|
4.40896e-01 |
5.417e-02 |
Positron |
|
4.77824e-01 |
2.999e-02 |
Positron |
|
5.21715e-01 |
4.160e-02 |
Positron |
|
8.63562e-01 |
1.935e-02 |
Positron |
|
3.81977e-05 |
2.577e+00 |
Auger electron |
|
1.21679e-04 |
1.565e-01 |
Auger electron |
|
1.25991e-04 |
6.771e-01 |
Auger electron |
|
2.92901e-04 |
1.671e+00 |
Auger electron |
|
2.38228e-03 |
6.363e-01 |
Auger electron |
|
2.75695e-03 |
1.291e-01 |
Auger electron |
|
1.76856e-02 |
9.190e-02 |
Auger electron |
|
2.05196e-02 |
3.648e-02 |
Auger 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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