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Radionuclide Dosimetric Data Sheets
Ytterbium-163
Summary data
General
Classification
Isotope: Yb-163
Atomic number (Z): 70
Mass number (A): 163
Neutron number (N): 93
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 11.05 [m]
Decay constant: 1.0455e-03 [1/s]
Daughters: Tm-163 (100.0%)
Radioactive daughters: Tm-163
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.27183 [MeV]
Mean photon energy: 0.72773 [MeV]
Air kerma rate constant, Γ10: 1.740e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 2.642e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 4.355e-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-:
4.355e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 1.166e-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/Yb-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/Yb-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/Yb-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/Yb-163 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.33689e-05 |
1.352e+01 |
X-ray |
|
1.43696e-03 |
3.509e-02 |
X-ray |
|
7.12210e-03 |
1.379e-02 |
X-ray |
|
7.16830e-03 |
1.218e-01 |
X-ray |
|
8.00581e-03 |
1.180e-02 |
X-ray |
|
8.11340e-03 |
8.510e-02 |
X-ray |
|
8.21590e-03 |
1.584e-02 |
X-ray |
|
8.45978e-03 |
2.074e-02 |
X-ray |
|
9.44244e-03 |
1.511e-02 |
X-ray |
|
4.98586e-02 |
2.104e-01 |
X-ray |
|
5.08500e-02 |
3.720e-01 |
X-ray |
|
5.74128e-02 |
3.898e-02 |
X-ray |
|
5.76229e-02 |
7.534e-02 |
X-ray |
|
5.91642e-02 |
1.673e-02 |
X-ray |
|
6.36200e-02 |
6.464e-02 |
Gamma |
|
1.23210e-01 |
1.980e-02 |
Gamma |
|
1.30860e-01 |
1.323e-02 |
Gamma |
|
1.61490e-01 |
1.071e-02 |
Gamma |
|
3.26200e-01 |
1.565e-02 |
Gamma |
|
5.11000e-01 |
4.661e-01 |
Annihilation photon |
|
8.60280e-01 |
1.010e-01 |
Gamma |
|
1.74668e+00 |
1.717e-02 |
Gamma |
|
1.90784e+00 |
1.535e-02 |
Gamma |
|
1.08135e+00 |
9.036e-02 |
Positron |
|
1.08746e+00 |
1.104e-01 |
Positron |
|
2.06752e-05 |
6.371e-01 |
Auger electron |
|
1.10600e-04 |
4.996e-02 |
Conversion electron |
|
1.47906e-04 |
6.025e+00 |
Auger electron |
|
2.28859e-04 |
1.982e-01 |
Auger electron |
|
2.50387e-04 |
1.086e+00 |
Auger electron |
|
8.62866e-04 |
2.629e-01 |
Auger electron |
|
1.10190e-03 |
7.108e-02 |
Conversion electron |
|
1.19654e-03 |
2.250e+00 |
Auger electron |
|
1.37531e-03 |
1.073e-01 |
Auger electron |
|
3.44900e-03 |
3.126e-01 |
Conversion electron |
|
3.90060e-03 |
7.423e-02 |
Conversion electron |
|
4.13200e-03 |
6.565e-02 |
Conversion electron |
|
4.89190e-03 |
6.563e-02 |
Conversion electron |
|
5.69916e-03 |
7.494e-01 |
Auger electron |
|
5.81490e-03 |
1.177e-02 |
Conversion electron |
|
7.14013e-03 |
2.695e-01 |
Auger electron |
|
7.87490e-03 |
2.899e-02 |
Conversion electron |
|
8.61509e-03 |
2.455e-02 |
Auger electron |
|
1.16649e-02 |
1.026e-01 |
Conversion electron |
|
1.35300e-02 |
2.839e-02 |
Conversion electron |
|
4.07026e-02 |
2.652e-02 |
Auger electron |
|
4.84128e-02 |
1.349e-02 |
Auger electron |
|
6.37220e-02 |
2.820e-02 |
Conversion electron |
|
7.13720e-02 |
1.473e-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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