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Radionuclide Dosimetric Data Sheets
Silver-101
Summary data
General
Classification
Isotope: Ag-101
Atomic number (Z): 47
Mass number (A): 101
Neutron number (N): 54
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 11.1 [m]
Decay constant: 1.0408e-03 [1/s]
Daughters: Pd-101 (100.0%)
Radioactive daughters: Pd-101
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.83955 [MeV]
Mean photon energy: 1.57031 [MeV]
Air kerma rate constant, Γ10: 3.183e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 5.979e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.345e-13 [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-:
1.345e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 2.516e-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-101 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-101 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-101 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-101 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
7.85947e-06 |
2.771e+00 |
X-ray |
|
2.09884e-02 |
7.024e-02 |
X-ray |
|
2.11504e-02 |
1.327e-01 |
X-ray |
|
2.37657e-02 |
1.143e-02 |
X-ray |
|
2.37942e-02 |
2.221e-02 |
X-ray |
|
8.02600e-02 |
4.734e-02 |
Gamma |
|
2.61010e-01 |
5.260e-01 |
Gamma |
|
2.74680e-01 |
1.683e-02 |
Gamma |
|
3.26910e-01 |
1.894e-02 |
Gamma |
|
4.39200e-01 |
2.851e-02 |
Gamma |
|
5.07600e-01 |
2.051e-02 |
Gamma |
|
5.11000e-01 |
1.444e+00 |
Annihilation photon |
|
5.37920e-01 |
1.383e-02 |
Gamma |
|
5.43320e-01 |
2.314e-02 |
Gamma |
|
5.85900e-01 |
1.052e-02 |
Gamma |
|
5.88000e-01 |
9.994e-02 |
Gamma |
|
6.54400e-01 |
1.578e-02 |
Gamma |
|
6.67320e-01 |
9.836e-02 |
Gamma |
|
6.77700e-01 |
1.315e-02 |
Gamma |
|
6.77900e-01 |
2.367e-02 |
Gamma |
|
7.34710e-01 |
3.261e-02 |
Gamma |
|
8.93200e-01 |
1.126e-02 |
Gamma |
|
9.38320e-01 |
1.368e-02 |
Gamma |
|
9.44330e-01 |
1.157e-02 |
Gamma |
|
1.09359e+00 |
2.630e-02 |
Gamma |
|
1.17394e+00 |
8.942e-02 |
Gamma |
|
1.20526e+00 |
2.630e-02 |
Gamma |
|
7.20016e-01 |
1.203e-02 |
Positron |
|
8.53948e-01 |
1.203e-02 |
Positron |
|
8.81499e-01 |
4.212e-02 |
Positron |
|
8.84243e-01 |
1.805e-02 |
Positron |
|
8.95866e-01 |
1.123e-01 |
Positron |
|
1.00382e+00 |
1.203e-02 |
Positron |
|
1.12945e+00 |
3.811e-02 |
Positron |
|
1.14974e+00 |
1.203e-02 |
Positron |
|
1.16629e+00 |
6.920e-02 |
Positron |
|
1.31889e+00 |
3.711e-01 |
Positron |
|
3.82005e-05 |
1.044e+00 |
Auger electron |
|
1.21690e-04 |
6.233e-02 |
Auger electron |
|
1.26063e-04 |
2.744e-01 |
Auger electron |
|
2.92884e-04 |
6.774e-01 |
Auger electron |
|
2.38227e-03 |
2.583e-01 |
Auger electron |
|
2.75690e-03 |
5.239e-02 |
Auger electron |
|
1.76856e-02 |
3.705e-02 |
Auger electron |
|
2.05196e-02 |
1.470e-02 |
Auger electron |
|
5.59390e-02 |
4.062e-02 |
Conversion electron |
|
2.36689e-01 |
1.318e-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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