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Radionuclide Dosimetric Data Sheets
Europium-152
Summary data
General
Classification
Isotope: Eu-152
Atomic number (Z): 63
Mass number (A): 152
Neutron number (N): 89
Radioactive decay
Decay modes: β-, β+, Electron capture
Half-life: 13.54 [y]
Decay constant: 1.6226e-09 [1/s]
Daughters: Gd-152 (27.9%), Sm-152 (72.1%)
Radioactive daughters: Gd-152
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.12856 [MeV]
Mean photon energy: 1.17591 [MeV]
Air kerma rate constant, Γ10: 4.254e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 4.255e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 2.060e-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-:
2.060e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 1.884e-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/Eu-152 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/Eu-152 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/Eu-152 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/Eu-152 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.45293e-05 |
1.030e+01 |
X-ray |
|
1.94280e-05 |
1.071e-01 |
X-ray |
|
9.69428e-04 |
1.208e-02 |
X-ray |
|
5.62210e-03 |
5.989e-02 |
X-ray |
|
6.20531e-03 |
4.003e-02 |
X-ray |
|
3.95578e-02 |
2.115e-01 |
X-ray |
|
4.01680e-02 |
3.829e-01 |
X-ray |
|
4.53440e-02 |
3.837e-02 |
X-ray |
|
4.54683e-02 |
7.423e-02 |
X-ray |
|
4.66259e-02 |
1.615e-02 |
X-ray |
|
1.21782e-01 |
2.867e-01 |
Gamma |
|
2.44698e-01 |
7.607e-02 |
Gamma |
|
3.44279e-01 |
2.656e-01 |
Gamma |
|
4.11116e-01 |
2.237e-02 |
Gamma |
|
4.43965e-01 |
2.830e-02 |
Gamma |
|
7.78904e-01 |
1.296e-01 |
Gamma |
|
8.67373e-01 |
4.258e-02 |
Gamma |
|
9.64079e-01 |
1.465e-01 |
Gamma |
|
1.08587e+00 |
1.024e-01 |
Gamma |
|
1.08974e+00 |
1.730e-02 |
Gamma |
|
1.11207e+00 |
1.369e-01 |
Gamma |
|
1.21295e+00 |
1.426e-02 |
Gamma |
|
1.29914e+00 |
1.625e-02 |
Gamma |
|
1.40801e+00 |
2.107e-01 |
Gamma |
|
4.73705e-02 |
1.823e-02 |
Beta |
|
1.12287e-01 |
2.432e-02 |
Beta |
|
2.21593e-01 |
1.381e-01 |
Beta |
|
5.35309e-01 |
8.116e-02 |
Beta |
|
1.51033e-05 |
8.048e-01 |
Auger electron |
|
9.41769e-05 |
6.605e-01 |
Auger electron |
|
1.06726e-04 |
4.302e+00 |
Auger electron |
|
1.13413e-04 |
4.817e-02 |
Auger electron |
|
1.69338e-04 |
6.871e-01 |
Auger electron |
|
5.04335e-04 |
1.315e-01 |
Auger electron |
|
8.03812e-04 |
1.478e+00 |
Auger electron |
|
8.97742e-04 |
1.634e-02 |
Auger electron |
|
9.73769e-04 |
9.463e-02 |
Auger electron |
|
4.46001e-03 |
5.491e-01 |
Auger electron |
|
5.50990e-03 |
1.877e-01 |
Auger electron |
|
6.59336e-03 |
1.601e-02 |
Auger electron |
|
3.25196e-02 |
3.651e-02 |
Auger electron |
|
3.84443e-02 |
1.779e-02 |
Auger electron |
|
7.49057e-02 |
1.939e-01 |
Conversion electron |
|
1.14079e-01 |
1.831e-02 |
Conversion electron |
|
1.14464e-01 |
4.540e-02 |
Conversion electron |
|
1.15074e-01 |
4.485e-02 |
Conversion electron |
|
1.20374e-01 |
2.511e-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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