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Radionuclide Dosimetric Data Sheets
Selenium-83
Summary data
General
Classification
Isotope: Se-83
Atomic number (Z): 34
Mass number (A): 83
Neutron number (N): 49
Radioactive decay
Decay modes: β-
Half-life: 22.3 [m]
Decay constant: 5.1805e-04 [1/s]
Daughters: Br-83 (100.0%)
Radioactive daughters: Br-83
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.45282 [MeV]
Mean photon energy: 2.62541 [MeV]
Air kerma rate constant, Γ10: 9.048e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 9.048e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 7.255e-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-:
7.255e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 4.206e-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/Se-83 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/Se-83 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/Se-83 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/Se-83 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.75888e-05 |
6.157e-02 |
X-ray |
|
2.08300e-01 |
1.939e-02 |
Gamma |
|
2.25180e-01 |
3.269e-01 |
Gamma |
|
3.56700e-01 |
7.000e-01 |
Gamma |
|
4.15200e-01 |
1.624e-02 |
Gamma |
|
4.57410e-01 |
3.465e-02 |
Gamma |
|
4.85700e-01 |
2.310e-02 |
Gamma |
|
4.85720e-01 |
2.359e-02 |
Gamma |
|
5.10060e-01 |
4.270e-01 |
Gamma |
|
5.53200e-01 |
3.360e-02 |
Gamma |
|
5.71910e-01 |
4.270e-02 |
Gamma |
|
6.09220e-01 |
2.877e-02 |
Gamma |
|
6.64800e-01 |
3.290e-02 |
Gamma |
|
6.79400e-01 |
1.029e-02 |
Gamma |
|
7.12110e-01 |
3.080e-02 |
Gamma |
|
7.18030e-01 |
1.498e-01 |
Gamma |
|
7.99040e-01 |
1.484e-01 |
Gamma |
|
8.36520e-01 |
1.330e-01 |
Gamma |
|
8.66640e-01 |
8.190e-02 |
Gamma |
|
8.83610e-01 |
7.210e-02 |
Gamma |
|
8.87810e-01 |
4.270e-02 |
Gamma |
|
9.95930e-01 |
1.309e-02 |
Gamma |
|
1.04213e+00 |
1.190e-02 |
Gamma |
|
1.06411e+00 |
5.460e-02 |
Gamma |
|
1.08206e+00 |
2.653e-02 |
Gamma |
|
1.19175e+00 |
4.137e-02 |
Gamma |
|
1.22595e+00 |
1.302e-02 |
Gamma |
|
1.29380e+00 |
1.680e-02 |
Gamma |
|
1.29915e+00 |
5.250e-02 |
Gamma |
|
1.31705e+00 |
3.990e-02 |
Gamma |
|
1.34129e+00 |
5.390e-02 |
Gamma |
|
1.35259e+00 |
4.620e-02 |
Gamma |
|
1.42060e+00 |
1.134e-02 |
Gamma |
|
1.55481e+00 |
2.527e-02 |
Gamma |
|
1.77996e+00 |
2.086e-02 |
Gamma |
|
1.82712e+00 |
1.330e-02 |
Gamma |
|
1.85450e+00 |
1.680e-02 |
Gamma |
|
1.87130e+00 |
1.568e-02 |
Gamma |
|
1.89488e+00 |
7.770e-02 |
Gamma |
|
2.29030e+00 |
9.310e-02 |
Gamma |
|
2.33750e+00 |
3.430e-02 |
Gamma |
|
1.70421e-01 |
2.803e-02 |
Beta |
|
2.44014e-01 |
1.068e-01 |
Beta |
|
3.29002e-01 |
1.215e-01 |
Beta |
|
3.47440e-01 |
2.519e-01 |
Beta |
|
3.67325e-01 |
3.136e-01 |
Beta |
|
7.41482e-01 |
2.940e-02 |
Beta |
|
9.29770e-01 |
1.372e-02 |
Beta |
|
1.07327e+00 |
3.920e-02 |
Beta |
|
1.21803e+00 |
1.568e-02 |
Beta |
|
1.42610e+00 |
2.940e-02 |
Beta |
|
4.38522e-05 |
2.773e-02 |
Auger electron |
|
5.76879e-05 |
1.069e-02 |
Auger 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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