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Radionuclide Dosimetric Data Sheets
Lutetium-174
Summary data
General
Classification
Isotope: Lu-174
Atomic number (Z): 71
Mass number (A): 174
Neutron number (N): 103
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 3.31 [y]
Decay constant: 6.6359e-09 [1/s]
Daughters: Yb-174 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.04582 [MeV]
Mean photon energy: 0.11625 [MeV]
Air kerma rate constant, Γ10: 4.567e-18 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 4.576e-18 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 7.341e-15 [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-:
7.341e-15 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 1.863e-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/Lu-174 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-174 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-174 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-174 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
8.64763e-06 |
1.419e+01 |
X-ray |
|
1.50196e-03 |
3.503e-02 |
X-ray |
|
7.35570e-03 |
1.437e-02 |
X-ray |
|
7.40529e-03 |
1.268e-01 |
X-ray |
|
8.41451e-03 |
9.318e-02 |
X-ray |
|
8.74937e-03 |
2.166e-02 |
X-ray |
|
9.79888e-03 |
1.660e-02 |
X-ray |
|
5.14483e-02 |
2.385e-01 |
X-ray |
|
5.25072e-02 |
4.204e-01 |
X-ray |
|
5.92804e-02 |
4.430e-02 |
X-ray |
|
5.95058e-02 |
8.561e-02 |
X-ray |
|
6.11060e-02 |
1.906e-02 |
X-ray |
|
7.64680e-02 |
5.926e-02 |
Gamma |
|
1.24185e+00 |
5.140e-02 |
Gamma |
|
9.39916e-06 |
1.240e+00 |
Auger electron |
|
1.88615e-05 |
1.757e+00 |
Auger electron |
|
1.54775e-04 |
5.135e+00 |
Auger electron |
|
2.46058e-04 |
1.556e-01 |
Auger electron |
|
2.62579e-04 |
9.033e-01 |
Auger electron |
|
8.72731e-04 |
1.344e-01 |
Auger electron |
|
1.25746e-03 |
2.074e+00 |
Auger electron |
|
1.43075e-03 |
9.370e-02 |
Auger electron |
|
5.82488e-03 |
6.822e-01 |
Auger electron |
|
7.31725e-03 |
2.460e-01 |
Auger electron |
|
8.84015e-03 |
2.257e-02 |
Auger electron |
|
1.50270e-02 |
9.301e-02 |
Conversion electron |
|
4.19611e-02 |
2.879e-02 |
Auger electron |
|
4.99512e-02 |
1.472e-02 |
Auger electron |
|
6.64754e-02 |
1.718e-01 |
Conversion electron |
|
6.75342e-02 |
1.755e-01 |
Conversion electron |
|
7.45328e-02 |
8.853e-02 |
Conversion electron |
|
7.64680e-02 |
2.335e-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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