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Radionuclide Dosimetric Data Sheets
Europium-152n
Summary data
General
Classification
Isotope: Eu-152n
Atomic number (Z): 63
Mass number (A): 152
Neutron number (N): 89
Radioactive decay
Decay modes: Internal transition
Half-life: 96.0 [m]
Decay constant: 1.2034e-04 [1/s]
Daughters: Eu-152 (100.0%)
Radioactive daughters: Eu-152
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.06664 [MeV]
Mean photon energy: 0.07526 [MeV]
Air kerma rate constant, Γ10: 2.930e-18 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 2.930e-18 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.068e-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-:
1.068e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 1.206e-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/Eu-152n 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-152n Summary 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-152n Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.42534e-05 |
1.811e+01 |
X-ray |
|
1.03194e-03 |
2.351e-02 |
X-ray |
|
5.80160e-03 |
1.081e-02 |
X-ray |
|
5.83100e-03 |
9.559e-02 |
X-ray |
|
6.45760e-03 |
7.930e-02 |
X-ray |
|
6.54850e-03 |
1.442e-02 |
X-ray |
|
6.82635e-03 |
1.602e-02 |
X-ray |
|
7.47704e-03 |
1.370e-02 |
X-ray |
|
1.82100e-02 |
1.258e-02 |
Gamma |
|
4.09430e-02 |
6.567e-02 |
X-ray |
|
4.15992e-02 |
1.184e-01 |
X-ray |
|
4.69640e-02 |
1.195e-02 |
X-ray |
|
4.70984e-02 |
2.313e-02 |
X-ray |
|
8.98470e-02 |
6.990e-01 |
Gamma |
|
1.58398e-05 |
1.294e+00 |
Auger electron |
|
3.88900e-05 |
1.025e-02 |
Auger electron |
|
1.06122e-04 |
8.899e-01 |
Auger electron |
|
1.12949e-04 |
7.813e+00 |
Auger electron |
|
1.81399e-04 |
1.296e+00 |
Auger electron |
|
5.54912e-04 |
3.392e-01 |
Auger electron |
|
8.56147e-04 |
2.589e+00 |
Auger electron |
|
1.03123e-03 |
1.605e-01 |
Auger electron |
|
4.67763e-03 |
9.336e-01 |
Auger electron |
|
5.62920e-03 |
1.595e-02 |
Conversion electron |
|
5.78423e-03 |
3.227e-01 |
Auger electron |
|
6.92778e-03 |
2.797e-02 |
Auger electron |
|
1.01919e-02 |
3.936e-01 |
Conversion electron |
|
1.05852e-02 |
6.835e-02 |
Conversion electron |
|
1.12412e-02 |
5.242e-02 |
Conversion electron |
|
1.67404e-02 |
1.123e-01 |
Conversion electron |
|
1.82100e-02 |
3.088e-02 |
Conversion electron |
|
2.86620e-02 |
2.306e-02 |
Conversion electron |
|
3.21252e-02 |
3.386e-01 |
Conversion electron |
|
3.27812e-02 |
4.077e-01 |
Conversion electron |
|
3.36229e-02 |
1.077e-02 |
Auger electron |
|
3.82804e-02 |
1.977e-01 |
Conversion electron |
|
3.97500e-02 |
5.166e-02 |
Conversion electron |
|
4.12790e-02 |
2.226e-01 |
Conversion electron |
|
8.18289e-02 |
2.258e-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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