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Radionuclide Dosimetric Data Sheets
Indium-106
Summary data
General
Classification
Isotope: In-106
Atomic number (Z): 49
Mass number (A): 106
Neutron number (N): 57
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 6.2 [m]
Decay constant: 1.8633e-03 [1/s]
Daughters: Cd-106 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 1.08435 [MeV]
Mean photon energy: 3.55412 [MeV]
Air kerma rate constant, Γ10: 1.013e-16 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 1.319e-16 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.737e-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-:
1.737e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 5.694e-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/In-106 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/In-106 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/In-106 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/In-106 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.71476e-05 |
1.656e+00 |
X-ray |
|
2.29571e-02 |
4.676e-02 |
X-ray |
|
2.31527e-02 |
8.790e-02 |
X-ray |
|
2.60753e-02 |
1.507e-02 |
X-ray |
|
2.25700e-01 |
6.879e-02 |
Gamma |
|
4.33100e-01 |
2.293e-02 |
Gamma |
|
5.11000e-01 |
1.581e+00 |
Annihilation photon |
|
5.24600e-01 |
1.894e-02 |
Gamma |
|
5.41000e-01 |
1.246e-01 |
Gamma |
|
5.52400e-01 |
2.512e-01 |
Gamma |
|
5.58600e-01 |
2.193e-02 |
Gamma |
|
5.92100e-01 |
2.991e-02 |
Gamma |
|
6.10700e-01 |
3.589e-02 |
Gamma |
|
6.23200e-01 |
1.795e-02 |
Gamma |
|
6.32600e-01 |
9.970e-01 |
Gamma |
|
7.53300e-01 |
2.492e-02 |
Gamma |
|
8.11100e-01 |
1.276e-02 |
Gamma |
|
8.36700e-01 |
2.792e-02 |
Gamma |
|
8.61100e-01 |
8.973e-01 |
Gamma |
|
9.74600e-01 |
1.595e-02 |
Gamma |
|
9.92100e-01 |
1.495e-02 |
Gamma |
|
9.97800e-01 |
4.138e-01 |
Gamma |
|
1.00930e+00 |
2.742e-01 |
Gamma |
|
1.13900e+00 |
2.692e-02 |
Gamma |
|
1.14500e+00 |
3.888e-02 |
Gamma |
|
1.43080e+00 |
1.196e-02 |
Gamma |
|
1.47190e+00 |
6.580e-02 |
Gamma |
|
1.78010e+00 |
1.495e-02 |
Gamma |
|
8.30008e-01 |
1.431e-02 |
Positron |
|
1.06656e+00 |
1.937e-02 |
Positron |
|
1.08596e+00 |
4.389e-02 |
Positron |
|
1.10452e+00 |
2.834e-01 |
Positron |
|
1.15977e+00 |
2.576e-02 |
Positron |
|
1.30718e+00 |
1.536e-02 |
Positron |
|
1.35637e+00 |
6.679e-02 |
Positron |
|
1.36161e+00 |
8.588e-02 |
Positron |
|
1.44412e+00 |
5.821e-02 |
Positron |
|
1.84604e+00 |
8.588e-02 |
Positron |
|
2.24434e+00 |
6.679e-02 |
Positron |
|
3.67772e-05 |
5.847e-01 |
Auger electron |
|
1.28100e-04 |
1.705e-01 |
Auger electron |
|
1.65912e-04 |
3.583e-02 |
Auger electron |
|
3.45338e-04 |
4.082e-01 |
Auger electron |
|
2.61021e-03 |
1.575e-01 |
Auger electron |
|
3.05322e-03 |
3.626e-02 |
Auger electron |
|
1.92752e-02 |
2.075e-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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