<= Return to MIRDspec isotope database
Radionuclide Dosimetric Data Sheets
Radon-223
Summary data
General
Classification
Isotope: Rn-223
Atomic number (Z): 86
Mass number (A): 223
Neutron number (N): 137
Radioactive decay
Decay modes: β-
Half-life: 24.3 [m]
Decay constant: 4.7541e-04 [1/s]
Daughters: Fr-223 (100.0%)
Radioactive daughters: Fr-223
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.62824 [MeV]
Mean photon energy: 0.34435 [MeV]
Air kerma rate constant, Γ10: 2.290e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 2.290e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.007e-13 [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-:
1.007e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 5.517e-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/Rn-223 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/Rn-223 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/Rn-223 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/Rn-223 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
6.06248e-05 |
1.904e+01 |
X-ray |
|
2.81360e-03 |
8.530e-02 |
X-ray |
|
1.18951e-02 |
1.401e-02 |
X-ray |
|
1.20348e-02 |
1.232e-01 |
X-ray |
|
1.43175e-02 |
1.360e-02 |
X-ray |
|
1.44681e-02 |
2.482e-02 |
X-ray |
|
1.48321e-02 |
8.483e-02 |
X-ray |
|
1.49855e-02 |
1.337e-02 |
X-ray |
|
1.73734e-02 |
1.828e-02 |
X-ray |
|
6.92100e-02 |
2.220e-02 |
Gamma |
|
8.35492e-02 |
5.496e-02 |
X-ray |
|
8.64861e-02 |
9.020e-02 |
X-ray |
|
9.72076e-02 |
1.024e-02 |
X-ray |
|
9.78757e-02 |
1.989e-02 |
X-ray |
|
1.40930e-01 |
2.568e-02 |
Gamma |
|
1.71950e-01 |
1.200e-02 |
Gamma |
|
4.16520e-01 |
4.260e-02 |
Gamma |
|
4.92210e-01 |
1.344e-02 |
Gamma |
|
5.92550e-01 |
6.660e-02 |
Gamma |
|
6.22250e-01 |
1.040e-02 |
Gamma |
|
6.35800e-01 |
3.840e-02 |
Gamma |
|
6.49730e-01 |
2.244e-02 |
Gamma |
|
6.54780e-01 |
3.036e-02 |
Gamma |
|
7.24000e-01 |
1.692e-02 |
Gamma |
|
3.69353e-01 |
1.317e-02 |
Beta |
|
3.86896e-01 |
1.035e-01 |
Beta |
|
4.20616e-01 |
4.423e-02 |
Beta |
|
4.21425e-01 |
2.541e-02 |
Beta |
|
4.37867e-01 |
1.317e-01 |
Beta |
|
5.90130e-01 |
1.600e-02 |
Beta |
|
6.04676e-01 |
8.469e-02 |
Beta |
|
6.10805e-01 |
1.882e-02 |
Beta |
|
6.39681e-01 |
1.882e-02 |
Beta |
|
6.40280e-01 |
1.976e-02 |
Beta |
|
6.47380e-01 |
1.976e-01 |
Beta |
|
6.75709e-01 |
2.258e-01 |
Beta |
|
3.07574e-05 |
5.192e+00 |
Auger electron |
|
1.18659e-04 |
5.405e+00 |
Auger electron |
|
1.30335e-04 |
2.066e-02 |
Auger electron |
|
1.83365e-04 |
3.057e+00 |
Auger electron |
|
4.77053e-04 |
9.809e-01 |
Auger electron |
|
1.22592e-03 |
2.603e-01 |
Auger electron |
|
2.19714e-03 |
1.567e+00 |
Auger electron |
|
2.56991e-03 |
2.498e-01 |
Auger electron |
|
3.08888e-03 |
1.404e-02 |
Auger electron |
|
3.35000e-03 |
4.552e-02 |
Conversion electron |
|
5.28000e-03 |
6.162e-02 |
Conversion electron |
|
9.23030e-03 |
2.661e-01 |
Auger electron |
|
9.25550e-03 |
6.543e-01 |
Conversion electron |
|
1.20735e-02 |
1.273e-01 |
Auger electron |
|
1.29000e-02 |
2.154e-01 |
Conversion electron |
|
1.49567e-02 |
1.446e-02 |
Auger electron |
|
1.88400e-02 |
1.143e-02 |
Conversion electron |
|
3.63700e-02 |
1.430e-02 |
Conversion electron |
|
3.71700e-02 |
2.225e-02 |
Conversion electron |
|
4.21300e-02 |
1.233e-02 |
Conversion electron |
|
5.05800e-02 |
1.152e-01 |
Conversion electron |
|
5.12390e-02 |
7.873e-02 |
Conversion electron |
|
5.41760e-02 |
5.721e-02 |
Conversion electron |
|
6.09800e-02 |
1.197e-02 |
Conversion electron |
|
6.41290e-02 |
4.751e-02 |
Conversion electron |
|
6.55655e-02 |
6.400e-02 |
Conversion electron |
|
6.70660e-02 |
3.775e-02 |
Conversion electron |
|
6.74700e-02 |
1.824e-02 |
Conversion electron |
|
6.80700e-02 |
1.080e-02 |
Conversion electron |
|
6.92100e-02 |
2.159e-02 |
Conversion electron |
|
6.93700e-02 |
4.093e-02 |
Conversion electron |
|
7.84555e-02 |
2.360e-02 |
Conversion electron |
|
8.23200e-02 |
1.819e-02 |
Conversion electron |
|
8.43555e-02 |
1.085e-02 |
Conversion electron |
|
8.81700e-02 |
1.016e-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)
<= Return to MIRDspec isotope database
