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Radionuclide Dosimetric Data Sheets
Thulium-163
Summary data
General
Classification
Isotope: Tm-163
Atomic number (Z): 69
Mass number (A): 163
Neutron number (N): 94
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 1.81 [h]
Decay constant: 1.0638e-04 [1/s]
Daughters: Er-163 (100.0%)
Radioactive daughters: Er-163
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.07161 [MeV]
Mean photon energy: 1.31998 [MeV]
Air kerma rate constant, Γ10: 4.591e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 4.615e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.147e-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-:
1.147e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 2.115e-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/Tm-163 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/Tm-163 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/Tm-163 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/Tm-163 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.35552e-05 |
1.596e+01 |
X-ray |
|
1.36772e-03 |
3.806e-02 |
X-ray |
|
6.15849e-03 |
1.107e-02 |
X-ray |
|
6.89240e-03 |
1.694e-02 |
X-ray |
|
6.93540e-03 |
1.496e-01 |
X-ray |
|
7.81980e-03 |
1.033e-01 |
X-ray |
|
7.92000e-03 |
1.129e-02 |
X-ray |
|
8.17513e-03 |
2.544e-02 |
X-ray |
|
9.09455e-03 |
1.826e-02 |
X-ray |
|
4.82993e-02 |
4.285e-01 |
X-ray |
|
4.92265e-02 |
7.604e-01 |
X-ray |
|
5.55821e-02 |
7.920e-02 |
X-ray |
|
5.57777e-02 |
1.531e-01 |
X-ray |
|
5.72170e-02 |
1.753e-02 |
X-ray |
|
5.72611e-02 |
3.393e-02 |
X-ray |
|
6.01050e-02 |
1.443e-02 |
Gamma |
|
6.92290e-02 |
1.161e-01 |
Gamma |
|
1.04320e-01 |
1.860e-01 |
Gamma |
|
1.90006e-01 |
1.428e-02 |
Gamma |
|
2.39585e-01 |
4.408e-02 |
Gamma |
|
2.41305e-01 |
1.086e-01 |
Gamma |
|
2.75125e-01 |
2.678e-02 |
Gamma |
|
2.99667e-01 |
4.557e-02 |
Gamma |
|
3.45608e-01 |
1.096e-02 |
Gamma |
|
3.93261e-01 |
1.371e-02 |
Gamma |
|
4.03989e-01 |
1.053e-02 |
Gamma |
|
4.71330e-01 |
4.055e-02 |
Gamma |
|
5.04878e-01 |
1.172e-02 |
Gamma |
|
5.11000e-01 |
1.226e-02 |
Annihilation photon |
|
5.50154e-01 |
1.536e-02 |
Gamma |
|
5.79510e-01 |
1.587e-02 |
Gamma |
|
6.66178e-01 |
2.053e-02 |
Gamma |
|
1.13022e+00 |
2.288e-02 |
Gamma |
|
1.15345e+00 |
1.049e-02 |
Gamma |
|
1.20502e+00 |
2.437e-02 |
Gamma |
|
1.22415e+00 |
2.083e-02 |
Gamma |
|
1.26512e+00 |
5.171e-02 |
Gamma |
|
1.31834e+00 |
1.538e-02 |
Gamma |
|
1.37434e+00 |
4.278e-02 |
Gamma |
|
1.38699e+00 |
1.084e-02 |
Gamma |
|
1.39752e+00 |
7.031e-02 |
Gamma |
|
1.43445e+00 |
7.961e-02 |
Gamma |
|
1.45594e+00 |
3.627e-02 |
Gamma |
|
1.46573e+00 |
1.916e-02 |
Gamma |
|
1.46942e+00 |
2.902e-02 |
Gamma |
|
1.74922e+00 |
1.029e-02 |
Gamma |
|
1.80355e+00 |
1.295e-02 |
Gamma |
|
1.98170e-05 |
7.787e-01 |
Auger electron |
|
1.41525e-04 |
7.182e+00 |
Auger electron |
|
2.01334e-04 |
2.551e-01 |
Auger electron |
|
2.34652e-04 |
1.225e+00 |
Auger electron |
|
7.49591e-04 |
2.490e-01 |
Auger electron |
|
1.13416e-03 |
2.656e+00 |
Auger electron |
|
1.31018e-03 |
1.320e-01 |
Auger electron |
|
2.53100e-03 |
1.501e-01 |
Conversion electron |
|
5.47760e-03 |
9.293e-01 |
Auger electron |
|
6.85432e-03 |
3.313e-01 |
Auger electron |
|
8.26360e-03 |
2.986e-02 |
Auger electron |
|
1.16550e-02 |
8.136e-02 |
Conversion electron |
|
2.28860e-02 |
2.418e-02 |
Conversion electron |
|
2.63940e-02 |
1.688e-02 |
Conversion electron |
|
2.75440e-02 |
1.488e-02 |
Conversion electron |
|
3.94671e-02 |
5.651e-02 |
Auger electron |
|
4.67460e-02 |
4.062e-01 |
Conversion electron |
|
4.69039e-02 |
2.859e-02 |
Auger electron |
|
5.03888e-02 |
2.051e-02 |
Conversion electron |
|
9.46038e-02 |
5.555e-02 |
Conversion electron |
|
1.02524e-01 |
1.370e-02 |
Conversion electron |
|
1.83731e-01 |
2.270e-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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