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Radionuclide Dosimetric Data Sheets
Ytterbium-167
Summary data
General
Classification
Isotope: Yb-167
Atomic number (Z): 70
Mass number (A): 167
Neutron number (N): 97
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 17.5 [m]
Decay constant: 6.6014e-04 [1/s]
Daughters: Tm-167 (100.0%)
Radioactive daughters: Tm-167
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.0952 [MeV]
Mean photon energy: 0.26961 [MeV]
Air kerma rate constant, Γ10: 1.008e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 1.027e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.525e-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-:
1.525e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 4.320e-14
[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-167 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-167 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-167 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-167 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.33747e-05 |
2.940e+01 |
X-ray |
|
1.43657e-03 |
7.673e-02 |
X-ray |
|
6.36070e-03 |
1.968e-02 |
X-ray |
|
7.12210e-03 |
3.077e-02 |
X-ray |
|
7.16830e-03 |
2.717e-01 |
X-ray |
|
8.00581e-03 |
2.358e-02 |
X-ray |
|
8.11340e-03 |
1.884e-01 |
X-ray |
|
8.21590e-03 |
3.167e-02 |
X-ray |
|
8.45978e-03 |
4.628e-02 |
X-ray |
|
9.44243e-03 |
3.346e-02 |
X-ray |
|
4.98586e-02 |
5.477e-01 |
X-ray |
|
5.08500e-02 |
9.682e-01 |
X-ray |
|
5.74128e-02 |
1.015e-01 |
X-ray |
|
5.76228e-02 |
1.961e-01 |
X-ray |
|
5.91167e-02 |
2.252e-02 |
X-ray |
|
5.91642e-02 |
4.356e-02 |
X-ray |
|
5.94584e-02 |
1.045e-02 |
X-ray |
|
6.29000e-02 |
4.896e-02 |
Gamma |
|
1.06160e-01 |
2.244e-01 |
Gamma |
|
1.13320e-01 |
5.508e-01 |
Gamma |
|
1.16570e-01 |
2.815e-02 |
Gamma |
|
1.31990e-01 |
2.774e-02 |
Gamma |
|
1.43460e-01 |
2.101e-02 |
Gamma |
|
1.76230e-01 |
2.040e-01 |
Gamma |
|
1.77220e-01 |
2.713e-02 |
Gamma |
|
2.06752e-05 |
1.380e+00 |
Auger electron |
|
4.71999e-05 |
1.044e-02 |
Auger electron |
|
1.47933e-04 |
1.310e+01 |
Auger electron |
|
2.28057e-04 |
4.288e-01 |
Auger electron |
|
2.49910e-04 |
2.341e+00 |
Auger electron |
|
3.69000e-04 |
5.299e-01 |
Conversion electron |
|
8.20599e-04 |
1.717e-01 |
Conversion electron |
|
8.59436e-04 |
5.400e-01 |
Auger electron |
|
1.19615e-03 |
4.922e+00 |
Auger electron |
|
1.37411e-03 |
2.345e-01 |
Auger electron |
|
1.56412e-03 |
1.433e-02 |
Auger electron |
|
1.81190e-03 |
1.777e-01 |
Conversion electron |
|
3.41201e-03 |
4.994e-01 |
Conversion electron |
|
5.06490e-03 |
2.127e-02 |
Conversion electron |
|
5.68848e-03 |
1.647e+00 |
Auger electron |
|
7.12816e-03 |
5.921e-01 |
Auger electron |
|
8.58490e-03 |
2.016e-01 |
Conversion electron |
|
8.60134e-03 |
5.391e-02 |
Auger electron |
|
1.04500e-02 |
5.528e-02 |
Conversion electron |
|
2.69690e-02 |
1.180e-02 |
Conversion electron |
|
2.74206e-02 |
1.512e-02 |
Conversion electron |
|
2.84119e-02 |
1.712e-02 |
Conversion electron |
|
3.51849e-02 |
1.049e-02 |
Conversion electron |
|
4.07026e-02 |
6.903e-02 |
Auger electron |
|
4.57020e-02 |
1.373e-02 |
Conversion electron |
|
4.66720e-02 |
5.048e-01 |
Conversion electron |
|
4.84128e-02 |
3.511e-02 |
Auger electron |
|
5.28190e-02 |
6.925e-02 |
Conversion electron |
|
5.38320e-02 |
1.101e-01 |
Conversion electron |
|
5.70820e-02 |
2.031e-02 |
Conversion electron |
|
6.10349e-02 |
1.792e-02 |
Conversion electron |
|
7.25020e-02 |
1.448e-02 |
Conversion electron |
|
9.60790e-02 |
6.970e-02 |
Conversion electron |
|
1.03239e-01 |
1.170e-02 |
Conversion electron |
|
1.04295e-01 |
1.757e-02 |
Conversion electron |
|
1.06941e-01 |
1.046e-02 |
Conversion electron |
|
1.16742e-01 |
1.280e-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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