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Radionuclide Dosimetric Data Sheets
Lutetium-165
Summary data
General
Classification
Isotope: Lu-165
Atomic number (Z): 71
Mass number (A): 165
Neutron number (N): 94
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 10.74 [m]
Decay constant: 1.0756e-03 [1/s]
Daughters: Yb-165 (100.0%)
Radioactive daughters: Yb-165
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.37506 [MeV]
Mean photon energy: 1.11023 [MeV]
Air kerma rate constant, Γ10: 2.957e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 3.965e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 6.009e-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-:
6.009e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 1.779e-13
[Gy·kg/Bq·s]
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/Lu-165 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/Lu-165 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/Lu-165 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
8.63858e-06 |
1.488e+01 |
X-ray |
|
1.50150e-03 |
3.674e-02 |
X-ray |
|
7.35570e-03 |
1.547e-02 |
X-ray |
|
7.40530e-03 |
1.366e-01 |
X-ray |
|
8.41451e-03 |
9.062e-02 |
X-ray |
|
8.74937e-03 |
2.331e-02 |
X-ray |
|
9.79888e-03 |
1.615e-02 |
X-ray |
|
3.92300e-02 |
5.355e-02 |
Gamma |
|
5.14483e-02 |
3.178e-01 |
X-ray |
|
5.25072e-02 |
5.601e-01 |
X-ray |
|
5.92804e-02 |
5.903e-02 |
X-ray |
|
5.95058e-02 |
1.141e-01 |
X-ray |
|
6.10550e-02 |
1.313e-02 |
X-ray |
|
6.11060e-02 |
2.540e-02 |
X-ray |
|
8.75400e-02 |
3.450e-02 |
Gamma |
|
1.03730e-01 |
1.890e-02 |
Gamma |
|
1.20600e-01 |
1.500e-01 |
Gamma |
|
1.32490e-01 |
1.500e-01 |
Gamma |
|
1.74250e-01 |
7.050e-02 |
Gamma |
|
2.03680e-01 |
5.700e-02 |
Gamma |
|
2.17430e-01 |
3.000e-02 |
Gamma |
|
2.53430e-01 |
2.430e-02 |
Gamma |
|
2.71150e-01 |
2.970e-02 |
Gamma |
|
3.56930e-01 |
1.800e-02 |
Gamma |
|
3.56930e-01 |
1.200e-02 |
Gamma |
|
3.61070e-01 |
4.395e-02 |
Gamma |
|
3.72970e-01 |
1.920e-02 |
Gamma |
|
4.00550e-01 |
3.000e-02 |
Gamma |
|
4.00550e-01 |
3.000e-02 |
Gamma |
|
4.58770e-01 |
1.860e-02 |
Gamma |
|
4.58770e-01 |
1.860e-02 |
Gamma |
|
5.11000e-01 |
5.207e-01 |
Annihilation photon |
|
5.52070e-01 |
1.470e-02 |
Gamma |
|
6.08980e-01 |
1.290e-02 |
Gamma |
|
6.29890e-01 |
1.035e-02 |
Gamma |
|
6.71070e-01 |
1.605e-02 |
Gamma |
|
6.86540e-01 |
1.545e-02 |
Gamma |
|
7.53550e-01 |
1.050e-02 |
Gamma |
|
1.55986e+00 |
1.080e-02 |
Gamma |
|
1.60143e+00 |
2.460e-02 |
Gamma |
|
1.61346e+00 |
2.265e-02 |
Gamma |
|
1.73413e+00 |
1.740e-02 |
Gamma |
|
1.80134e+00 |
1.035e-02 |
Gamma |
|
1.04738e+00 |
1.130e-02 |
Positron |
|
1.07999e+00 |
1.233e-02 |
Positron |
|
1.09621e+00 |
1.233e-02 |
Positron |
|
1.18650e+00 |
3.700e-02 |
Positron |
|
1.21626e+00 |
3.186e-02 |
Positron |
|
1.21905e+00 |
6.063e-02 |
Positron |
|
1.23957e+00 |
2.261e-02 |
Positron |
|
1.26279e+00 |
1.028e-02 |
Positron |
|
9.41893e-06 |
1.300e+00 |
Auger electron |
|
1.88616e-05 |
1.842e+00 |
Auger electron |
|
1.54789e-04 |
5.380e+00 |
Auger electron |
|
2.46303e-04 |
1.628e-01 |
Auger electron |
|
2.61454e-04 |
9.390e-01 |
Auger electron |
|
8.82568e-04 |
1.482e-01 |
Auger electron |
|
1.25666e-03 |
2.177e+00 |
Auger electron |
|
1.42919e-03 |
9.819e-02 |
Auger electron |
|
5.81338e-03 |
7.182e-01 |
Auger electron |
|
7.30567e-03 |
2.589e-01 |
Auger electron |
|
8.82850e-03 |
2.375e-02 |
Auger electron |
|
2.52690e-02 |
3.568e-02 |
Conversion electron |
|
2.60990e-02 |
6.134e-02 |
Conversion electron |
|
2.87760e-02 |
1.452e-02 |
Conversion electron |
|
3.02962e-02 |
1.107e-02 |
Conversion electron |
|
4.19611e-02 |
3.836e-02 |
Auger electron |
|
4.22890e-02 |
4.985e-02 |
Conversion electron |
|
4.32060e-02 |
2.283e-02 |
Conversion electron |
|
4.99512e-02 |
1.961e-02 |
Auger electron |
|
5.91590e-02 |
2.523e-01 |
Conversion electron |
|
6.04790e-02 |
1.048e-02 |
Conversion electron |
|
7.10490e-02 |
2.037e-02 |
Conversion electron |
|
7.75474e-02 |
4.494e-02 |
Conversion electron |
|
7.86062e-02 |
4.403e-02 |
Conversion electron |
|
8.56048e-02 |
2.368e-02 |
Conversion electron |
|
1.10146e-01 |
3.497e-02 |
Conversion electron |
|
1.12809e-01 |
3.891e-02 |
Conversion electron |
|
1.42239e-01 |
2.241e-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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