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Radionuclide Dosimetric Data Sheets
Osmium-183
Summary data
General
Classification
Isotope: Os-183
Atomic number (Z): 76
Mass number (A): 183
Neutron number (N): 107
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 13.0 [h]
Decay constant: 1.4811e-05 [1/s]
Daughters: Re-183 (100.0%)
Radioactive daughters: Re-183
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.07922 [MeV]
Mean photon energy: 0.62882 [MeV]
Air kerma rate constant, Γ10: 3.461e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 3.470e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.269e-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-:
1.269e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 1.007e-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/Os-183 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/Os-183 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/Os-183 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/Os-183 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
3.76256e-05 |
1.533e+01 |
X-ray |
|
1.84755e-03 |
6.183e-02 |
X-ray |
|
7.62641e-03 |
1.359e-02 |
X-ray |
|
8.57622e-03 |
2.323e-02 |
X-ray |
|
8.64532e-03 |
2.049e-01 |
X-ray |
|
1.00312e-02 |
1.270e-01 |
X-ray |
|
1.02735e-02 |
3.673e-02 |
X-ray |
|
1.17147e-02 |
2.392e-02 |
X-ray |
|
5.98631e-02 |
4.269e-01 |
X-ray |
|
6.13181e-02 |
7.381e-01 |
X-ray |
|
6.91788e-02 |
7.977e-02 |
X-ray |
|
6.94956e-02 |
1.541e-01 |
X-ray |
|
7.13392e-02 |
1.826e-02 |
X-ray |
|
7.14134e-02 |
3.547e-02 |
X-ray |
|
1.14470e-01 |
2.063e-01 |
Gamma |
|
1.45396e-01 |
1.534e-02 |
Gamma |
|
1.67843e-01 |
8.809e-02 |
Gamma |
|
2.36367e-01 |
3.412e-02 |
Gamma |
|
3.79190e-01 |
1.111e-02 |
Gamma |
|
3.81763e-01 |
8.960e-01 |
Gamma |
|
8.51480e-01 |
4.555e-02 |
Gamma |
|
1.16279e+00 |
1.229e-02 |
Gamma |
|
2.72996e-05 |
3.013e+00 |
Auger electron |
|
1.62309e-04 |
5.145e+00 |
Auger electron |
|
3.24635e-04 |
1.005e+00 |
Auger electron |
|
3.28385e-04 |
1.906e-01 |
Auger electron |
|
5.88147e-04 |
2.840e-01 |
Auger electron |
|
1.52548e-03 |
2.441e+00 |
Auger electron |
|
1.71515e-03 |
1.732e-01 |
Auger electron |
|
6.67826e-03 |
7.620e-01 |
Auger electron |
|
8.50330e-03 |
2.971e-01 |
Auger electron |
|
1.03571e-02 |
2.873e-02 |
Auger electron |
|
4.26140e-02 |
5.994e-01 |
Conversion electron |
|
4.85493e-02 |
4.342e-02 |
Auger electron |
|
5.80540e-02 |
2.288e-02 |
Auger electron |
|
7.35400e-02 |
2.149e-02 |
Conversion electron |
|
9.59870e-02 |
8.912e-02 |
Conversion electron |
|
1.01962e-01 |
8.724e-02 |
Conversion electron |
|
1.02477e-01 |
1.569e-02 |
Conversion electron |
|
1.12109e-01 |
2.570e-02 |
Conversion electron |
|
1.55335e-01 |
1.290e-02 |
Conversion electron |
|
3.09907e-01 |
1.013e-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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