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Radionuclide Dosimetric Data Sheets
Bismuth-213
Summary data
General
Classification
Isotope: Bi-213
Atomic number (Z): 83
Mass number (A): 213
Neutron number (N): 130
Radioactive decay
Decay modes: α, β-
Half-life: 45.59 [m]
Decay constant: 2.5340e-04 [1/s]
Daughters: Po-213 (97.9%), Tl-209 (2.09%)
Radioactive daughters: Po-213, Tl-209
Dosimetric constants
Mean alpha energy: 0.1245 [MeV]
Mean electron energy: 0.44404 [MeV]
Mean photon energy: 0.12773 [MeV]
Air kerma rate constant, Γ10: 5.441e-18 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 5.441e-18 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 9.109e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for alphas, Δα: 1.995e-14
[Gy·kg/Bq·s]
Equilibrium dose constant for betas/electrons, Δβ-,β+,e-:
7.114e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 2.046e-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/Bi-213 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/Bi-213 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/Bi-213 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/Bi-213 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
3.84109e-05 |
6.243e-01 |
X-ray |
|
7.71271e-02 |
1.214e-02 |
X-ray |
|
7.96070e-02 |
2.021e-02 |
X-ray |
|
4.40460e-01 |
2.610e-01 |
Gamma |
|
3.19976e-01 |
3.098e-01 |
Beta |
|
4.91654e-01 |
6.586e-01 |
Beta |
|
3.94527e-05 |
1.491e-01 |
Auger electron |
|
9.70234e-05 |
1.945e-01 |
Auger electron |
|
1.74590e-04 |
1.046e-01 |
Auger electron |
|
4.31989e-04 |
2.402e-02 |
Auger electron |
|
2.01388e-03 |
5.691e-02 |
Auger electron |
|
8.44368e-03 |
1.657e-02 |
Auger electron |
|
3.47036e-01 |
4.043e-02 |
Conversion electron |
|
5.86959e+00 |
1.935e-02 |
Alpha |
|
1.12410e-01 |
1.935e-02 |
Alpha recoil |
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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