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Radionuclide Dosimetric Data Sheets
Indium-107
Summary data
General
Classification
Isotope: In-107
Atomic number (Z): 49
Mass number (A): 107
Neutron number (N): 58
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 32.4 [m]
Decay constant: 3.5656e-04 [1/s]
Daughters: Cd-107 (100.0%)
Radioactive daughters: Cd-107
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.32631 [MeV]
Mean photon energy: 1.53072 [MeV]
Air kerma rate constant, Γ10: 4.297e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 5.637e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 5.228e-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-:
5.228e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 2.452e-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-107 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-107 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-107 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-107 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.71475e-05 |
5.140e+00 |
X-ray |
|
3.12254e-03 |
1.983e-02 |
X-ray |
|
3.31083e-03 |
1.013e-02 |
X-ray |
|
2.29571e-02 |
1.448e-01 |
X-ray |
|
2.31527e-02 |
2.722e-01 |
X-ray |
|
2.60401e-02 |
2.402e-02 |
X-ray |
|
2.60753e-02 |
4.666e-02 |
X-ray |
|
2.04950e-01 |
4.720e-01 |
Gamma |
|
3.20940e-01 |
1.020e-01 |
Gamma |
|
3.65290e-01 |
3.823e-02 |
Gamma |
|
4.16420e-01 |
1.699e-02 |
Gamma |
|
5.05510e-01 |
1.189e-01 |
Gamma |
|
5.11000e-01 |
6.921e-01 |
Annihilation photon |
|
6.04030e-01 |
1.336e-02 |
Gamma |
|
7.28030e-01 |
3.304e-02 |
Gamma |
|
8.09020e-01 |
3.257e-02 |
Gamma |
|
9.15100e-01 |
1.123e-02 |
Gamma |
|
9.21800e-01 |
1.227e-02 |
Gamma |
|
9.98750e-01 |
1.034e-02 |
Gamma |
|
1.06337e+00 |
1.241e-02 |
Gamma |
|
1.26833e+00 |
5.428e-02 |
Gamma |
|
1.34354e+00 |
1.392e-02 |
Gamma |
|
1.37733e+00 |
1.487e-02 |
Gamma |
|
1.41106e+00 |
1.152e-02 |
Gamma |
|
1.50100e+00 |
1.024e-02 |
Gamma |
|
1.57130e+00 |
1.416e-02 |
Gamma |
|
1.77900e+00 |
1.378e-02 |
Gamma |
|
1.92215e+00 |
1.794e-02 |
Gamma |
|
1.98380e+00 |
1.194e-02 |
Gamma |
|
2.00650e+00 |
1.581e-02 |
Gamma |
|
2.06480e+00 |
1.704e-02 |
Gamma |
|
2.28478e+00 |
1.133e-02 |
Gamma |
|
2.30400e+00 |
1.227e-02 |
Gamma |
|
5.06051e-01 |
1.781e-02 |
Positron |
|
6.60624e-01 |
1.047e-02 |
Positron |
|
7.11288e-01 |
1.257e-02 |
Positron |
|
8.48878e-01 |
1.990e-02 |
Positron |
|
9.86430e-01 |
2.650e-01 |
Positron |
|
3.67759e-05 |
1.816e+00 |
Auger electron |
|
1.28079e-04 |
5.294e-01 |
Auger electron |
|
1.65989e-04 |
1.119e-01 |
Auger electron |
|
3.45348e-04 |
1.267e+00 |
Auger electron |
|
4.03078e-04 |
1.442e-02 |
Auger electron |
|
2.61034e-03 |
4.887e-01 |
Auger electron |
|
3.05338e-03 |
1.125e-01 |
Auger electron |
|
1.92752e-02 |
6.427e-02 |
Auger electron |
|
2.24238e-02 |
2.644e-02 |
Auger electron |
|
1.78262e-01 |
2.802e-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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