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Radionuclide Dosimetric Data Sheets
Lutetium-172
Summary data
General
Classification
Isotope: Lu-172
Atomic number (Z): 71
Mass number (A): 172
Neutron number (N): 101
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 6.7 [d]
Decay constant: 1.1974e-06 [1/s]
Daughters: Yb-172 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.11535 [MeV]
Mean photon energy: 1.95648 [MeV]
Air kerma rate constant, Γ10: 6.977e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 6.979e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.848e-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-:
1.848e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 3.135e-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/Lu-172 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/Lu-172 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-172 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-172 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
8.65898e-06 |
2.025e+01 |
X-ray |
|
1.50196e-03 |
5.014e-02 |
X-ray |
|
6.56570e-03 |
1.281e-02 |
X-ray |
|
7.35569e-03 |
2.045e-02 |
X-ray |
|
7.40529e-03 |
1.805e-01 |
X-ray |
|
8.41451e-03 |
1.409e-01 |
X-ray |
|
8.74937e-03 |
3.082e-02 |
X-ray |
|
9.79888e-03 |
2.510e-02 |
X-ray |
|
5.14483e-02 |
3.104e-01 |
X-ray |
|
5.25072e-02 |
5.470e-01 |
X-ray |
|
5.92804e-02 |
5.765e-02 |
X-ray |
|
5.95058e-02 |
1.114e-01 |
X-ray |
|
6.10550e-02 |
1.282e-02 |
X-ray |
|
6.11060e-02 |
2.480e-02 |
X-ray |
|
7.87426e-02 |
1.056e-01 |
Gamma |
|
9.06440e-02 |
4.537e-02 |
Gamma |
|
1.12778e-01 |
1.269e-02 |
Gamma |
|
1.81525e-01 |
2.056e-01 |
Gamma |
|
2.03433e-01 |
5.019e-02 |
Gamma |
|
2.70028e-01 |
1.931e-02 |
Gamma |
|
2.79705e-01 |
1.188e-02 |
Gamma |
|
3.23899e-01 |
1.500e-02 |
Gamma |
|
3.72507e-01 |
2.662e-02 |
Gamma |
|
3.77523e-01 |
3.350e-02 |
Gamma |
|
4.10308e-01 |
1.975e-02 |
Gamma |
|
4.32549e-01 |
1.638e-02 |
Gamma |
|
4.90437e-01 |
1.912e-02 |
Gamma |
|
5.28260e-01 |
4.044e-02 |
Gamma |
|
5.40187e-01 |
1.400e-02 |
Gamma |
|
6.97300e-01 |
6.131e-02 |
Gamma |
|
8.10064e-01 |
1.663e-01 |
Gamma |
|
8.16327e-01 |
1.150e-02 |
Gamma |
|
9.00724e-01 |
2.981e-01 |
Gamma |
|
9.12079e-01 |
1.525e-01 |
Gamma |
|
9.29106e-01 |
3.044e-02 |
Gamma |
|
1.00274e+00 |
5.250e-02 |
Gamma |
|
1.02237e+00 |
1.406e-02 |
Gamma |
|
1.09363e+00 |
6.250e-01 |
Gamma |
|
1.11305e+00 |
1.650e-02 |
Gamma |
|
1.48894e+00 |
1.150e-02 |
Gamma |
|
1.54285e+00 |
1.019e-02 |
Gamma |
|
1.58412e+00 |
2.637e-02 |
Gamma |
|
1.62192e+00 |
2.156e-02 |
Gamma |
|
9.37916e-06 |
1.765e+00 |
Auger electron |
|
1.88613e-05 |
2.503e+00 |
Auger electron |
|
1.54786e-04 |
7.329e+00 |
Auger electron |
|
2.45205e-04 |
2.215e-01 |
Auger electron |
|
2.62834e-04 |
1.285e+00 |
Auger electron |
|
8.61825e-04 |
1.797e-01 |
Auger electron |
|
1.25767e-03 |
2.968e+00 |
Auger electron |
|
1.43078e-03 |
1.341e-01 |
Auger electron |
|
5.82862e-03 |
9.805e-01 |
Auger electron |
|
7.32057e-03 |
3.537e-01 |
Auger electron |
|
8.84286e-03 |
3.244e-02 |
Auger electron |
|
1.73016e-02 |
1.612e-01 |
Conversion electron |
|
2.92030e-02 |
8.866e-02 |
Conversion electron |
|
4.19611e-02 |
3.746e-02 |
Auger electron |
|
4.99512e-02 |
1.915e-02 |
Auger electron |
|
5.13370e-02 |
1.522e-02 |
Conversion electron |
|
6.82886e-02 |
1.685e-02 |
Conversion electron |
|
6.87500e-02 |
2.668e-01 |
Conversion electron |
|
6.98088e-02 |
2.704e-01 |
Conversion electron |
|
7.68074e-02 |
1.373e-01 |
Conversion electron |
|
7.87426e-02 |
3.622e-02 |
Conversion electron |
|
8.01900e-02 |
1.067e-02 |
Conversion electron |
|
8.06514e-02 |
4.385e-02 |
Conversion electron |
|
8.17102e-02 |
4.227e-02 |
Conversion electron |
|
8.87088e-02 |
2.378e-02 |
Conversion electron |
|
1.20084e-01 |
4.458e-02 |
Conversion electron |
|
1.71532e-01 |
1.142e-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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