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Radionuclide Dosimetric Data Sheets
Silver-115
Summary data
General
Classification
Isotope: Ag-115
Atomic number (Z): 47
Mass number (A): 115
Neutron number (N): 68
Radioactive decay
Decay modes: β-
Half-life: 20.0 [m]
Decay constant: 5.7762e-04 [1/s]
Daughters: Cd-115 (94.2%), Cd-115m (5.79%)
Radioactive daughters: Cd-115, Cd-115m
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 1.09281 [MeV]
Mean photon energy: 0.48314 [MeV]
Air kerma rate constant, Γ10: 1.603e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 1.603e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.751e-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-:
1.751e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 7.741e-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-115 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-115 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-115 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-115 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.71485e-05 |
2.006e-01 |
X-ray |
|
2.31527e-02 |
1.052e-02 |
X-ray |
|
1.31600e-01 |
2.880e-02 |
Gamma |
|
2.12800e-01 |
4.446e-02 |
Gamma |
|
2.29100e-01 |
1.800e-01 |
Gamma |
|
3.26100e-01 |
2.034e-02 |
Gamma |
|
3.72200e-01 |
2.088e-02 |
Gamma |
|
4.72700e-01 |
3.978e-02 |
Gamma |
|
5.07300e-01 |
1.494e-02 |
Gamma |
|
6.49100e-01 |
2.970e-02 |
Gamma |
|
6.98100e-01 |
2.232e-02 |
Gamma |
|
1.50690e+00 |
1.188e-02 |
Gamma |
|
1.84160e+00 |
1.800e-02 |
Gamma |
|
1.92690e+00 |
1.350e-02 |
Gamma |
|
2.11320e+00 |
1.170e-02 |
Gamma |
|
2.15610e+00 |
2.808e-02 |
Gamma |
|
2.62169e-01 |
2.322e-02 |
Beta |
|
3.25731e-01 |
7.471e-02 |
Beta |
|
3.43230e-01 |
3.231e-02 |
Beta |
|
7.90072e-01 |
4.543e-02 |
Beta |
|
9.93386e-01 |
1.212e-02 |
Beta |
|
1.07522e+00 |
1.111e-02 |
Beta |
|
1.12211e+00 |
2.322e-02 |
Beta |
|
1.18882e+00 |
1.262e-01 |
Beta |
|
1.29611e+00 |
6.058e-01 |
Beta |
|
3.67930e-05 |
7.074e-02 |
Auger electron |
|
1.28362e-04 |
2.062e-02 |
Auger electron |
|
3.45233e-04 |
4.957e-02 |
Auger electron |
|
2.60953e-03 |
1.920e-02 |
Auger electron |
|
2.02412e-01 |
1.137e-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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