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Radionuclide Dosimetric Data Sheets
Ytterbium-179
Summary data
General
Classification
Isotope: Yb-179
Atomic number (Z): 70
Mass number (A): 179
Neutron number (N): 109
Radioactive decay
Decay modes: β-
Half-life: 8.0 [m]
Decay constant: 1.4441e-03 [1/s]
Daughters: Lu-179 (100.0%)
Radioactive daughters: Lu-179
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.70926 [MeV]
Mean photon energy: 0.97429 [MeV]
Air kerma rate constant, Γ10: 3.680e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 3.680e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.136e-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-:
1.136e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 1.561e-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-179 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-179 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-179 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-179 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.40185e-05 |
2.053e+00 |
X-ray |
|
7.64540e-03 |
2.036e-02 |
X-ray |
|
8.72221e-03 |
1.395e-02 |
X-ray |
|
5.30692e-02 |
4.498e-02 |
X-ray |
|
5.41988e-02 |
7.898e-02 |
X-ray |
|
6.14258e-02 |
1.617e-02 |
X-ray |
|
1.40600e-01 |
3.540e-02 |
Gamma |
|
1.47500e-01 |
3.186e-02 |
Gamma |
|
3.24500e-01 |
6.372e-02 |
Gamma |
|
3.51700e-01 |
5.664e-02 |
Gamma |
|
3.81400e-01 |
9.558e-02 |
Gamma |
|
4.10800e-01 |
6.018e-02 |
Gamma |
|
4.31200e-01 |
2.478e-02 |
Gamma |
|
4.71300e-01 |
2.478e-02 |
Gamma |
|
5.00000e-01 |
6.018e-02 |
Gamma |
|
5.22500e-01 |
2.124e-02 |
Gamma |
|
5.92100e-01 |
7.505e-01 |
Gamma |
|
6.12300e-01 |
3.540e-01 |
Gamma |
|
6.43200e-01 |
5.310e-02 |
Gamma |
|
6.53700e-01 |
9.204e-02 |
Gamma |
|
9.93900e-01 |
2.832e-02 |
Gamma |
|
3.60173e-01 |
1.503e-01 |
Beta |
|
3.71985e-01 |
6.112e-02 |
Beta |
|
5.15628e-01 |
2.605e-01 |
Beta |
|
5.74677e-01 |
5.010e-02 |
Beta |
|
6.37289e-01 |
1.503e-02 |
Beta |
|
7.37259e-01 |
3.206e-02 |
Beta |
|
7.77200e-01 |
4.309e-01 |
Beta |
|
9.94837e-06 |
1.785e-01 |
Auger electron |
|
2.16357e-05 |
2.529e-01 |
Auger electron |
|
1.56528e-04 |
7.329e-01 |
Auger electron |
|
2.64645e-04 |
2.221e-02 |
Auger electron |
|
2.67462e-04 |
1.313e-01 |
Auger electron |
|
5.78807e-04 |
3.133e-02 |
Auger electron |
|
1.31033e-03 |
3.081e-01 |
Auger electron |
|
1.48546e-03 |
1.482e-02 |
Auger electron |
|
5.98638e-03 |
1.005e-01 |
Auger electron |
|
7.54132e-03 |
3.672e-02 |
Auger electron |
|
7.71580e-02 |
1.292e-02 |
Conversion electron |
|
8.40580e-02 |
1.065e-02 |
Conversion electron |
|
5.28658e-01 |
1.246e-01 |
Conversion electron |
|
5.81255e-01 |
2.136e-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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