<= Return to MIRDspec isotope database
Radionuclide Dosimetric Data Sheets
Indium-106m
Summary data
General
Classification
Isotope: In-106m
Atomic number (Z): 49
Mass number (A): 106
Neutron number (N): 57
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 5.2 [m]
Decay constant: 2.2216e-03 [1/s]
Daughters: Cd-106 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 1.58887 [MeV]
Mean photon energy: 2.8243 [MeV]
Air kerma rate constant, Γ10: 6.239e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 9.676e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 2.546e-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-:
2.546e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 4.525e-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-106m 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-106m 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-106m 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-106m Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.71475e-05 |
8.551e-01 |
X-ray |
|
2.29571e-02 |
2.416e-02 |
X-ray |
|
2.31527e-02 |
4.542e-02 |
X-ray |
|
5.11000e-01 |
1.776e+00 |
Annihilation photon |
|
6.10700e-01 |
1.377e-02 |
Gamma |
|
6.32600e-01 |
9.180e-01 |
Gamma |
|
8.61100e-01 |
9.180e-02 |
Gamma |
|
1.08380e+00 |
3.103e-02 |
Gamma |
|
1.16260e+00 |
1.561e-02 |
Gamma |
|
1.47190e+00 |
1.377e-02 |
Gamma |
|
1.71490e+00 |
1.478e-01 |
Gamma |
|
1.71640e+00 |
3.856e-02 |
Gamma |
|
1.73790e+00 |
1.469e-02 |
Gamma |
|
1.74570e+00 |
1.377e-02 |
Gamma |
|
1.93360e+00 |
6.977e-02 |
Gamma |
|
1.99750e+00 |
2.111e-02 |
Gamma |
|
2.08730e+00 |
2.203e-02 |
Gamma |
|
2.25690e+00 |
4.957e-02 |
Gamma |
|
2.48750e+00 |
1.010e-02 |
Gamma |
|
2.86210e+00 |
1.469e-02 |
Gamma |
|
2.91820e+00 |
3.856e-02 |
Gamma |
|
3.39450e+00 |
1.010e-02 |
Gamma |
|
3.49450e+00 |
2.111e-02 |
Gamma |
|
9.27992e-01 |
2.176e-02 |
Positron |
|
1.08242e+00 |
1.180e-02 |
Positron |
|
1.17605e+00 |
3.561e-02 |
Positron |
|
1.18941e+00 |
3.805e-02 |
Positron |
|
1.26838e+00 |
1.756e-02 |
Positron |
|
1.31031e+00 |
1.707e-02 |
Positron |
|
1.34017e+00 |
5.756e-02 |
Positron |
|
1.42825e+00 |
1.161e-02 |
Positron |
|
1.43191e+00 |
1.551e-02 |
Positron |
|
1.44270e+00 |
1.210e-01 |
Positron |
|
1.55709e+00 |
2.439e-02 |
Positron |
|
1.72044e+00 |
1.063e-02 |
Positron |
|
1.74057e+00 |
6.049e-02 |
Positron |
|
1.84647e+00 |
7.024e-02 |
Positron |
|
2.25811e+00 |
3.678e-01 |
Positron |
|
3.67768e-05 |
3.020e-01 |
Auger electron |
|
1.28094e-04 |
8.806e-02 |
Auger electron |
|
1.65928e-04 |
1.852e-02 |
Auger electron |
|
3.45340e-04 |
2.108e-01 |
Auger electron |
|
2.61021e-03 |
8.135e-02 |
Auger electron |
|
3.05322e-03 |
1.873e-02 |
Auger electron |
|
1.92752e-02 |
1.072e-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)
<= Return to MIRDspec isotope database
