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Radionuclide Dosimetric Data Sheets
Bismuth-200
Summary data
General
Classification
Isotope: Bi-200
Atomic number (Z): 83
Mass number (A): 200
Neutron number (N): 117
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 36.4 [m]
Decay constant: 3.1738e-04 [1/s]
Daughters: Pb-200 (100.0%)
Radioactive daughters: Pb-200
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.24693 [MeV]
Mean photon energy: 2.43552 [MeV]
Air kerma rate constant, Γ10: 1.012e-16 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 1.065e-16 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 3.956e-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-:
3.956e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 3.902e-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/Bi-200 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-200 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-200 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-200 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
2.66216e-05 |
1.659e+01 |
X-ray |
|
2.38013e-03 |
6.250e-02 |
X-ray |
|
9.21569e-03 |
1.128e-02 |
X-ray |
|
1.04453e-02 |
1.973e-02 |
X-ray |
|
1.05510e-02 |
1.737e-01 |
X-ray |
|
1.26275e-02 |
3.343e-02 |
X-ray |
|
1.26563e-02 |
1.186e-01 |
X-ray |
|
1.48158e-02 |
2.422e-02 |
X-ray |
|
7.30390e-02 |
2.849e-01 |
X-ray |
|
7.52501e-02 |
4.784e-01 |
X-ray |
|
8.47407e-02 |
5.330e-02 |
X-ray |
|
8.52354e-02 |
1.032e-01 |
X-ray |
|
8.75343e-02 |
1.271e-02 |
X-ray |
|
8.76558e-02 |
2.498e-02 |
X-ray |
|
1.03250e-01 |
1.300e-02 |
Gamma |
|
1.14400e-01 |
1.200e-02 |
Gamma |
|
2.45150e-01 |
4.600e-01 |
Gamma |
|
2.73390e-01 |
1.200e-02 |
Gamma |
|
3.03410e-01 |
2.200e-02 |
Gamma |
|
3.48330e-01 |
2.500e-02 |
Gamma |
|
4.19770e-01 |
9.100e-01 |
Gamma |
|
4.62340e-01 |
9.800e-01 |
Gamma |
|
4.80300e-01 |
2.300e-02 |
Gamma |
|
4.94300e-01 |
1.200e-02 |
Gamma |
|
5.11000e-01 |
2.747e-01 |
Annihilation photon |
|
5.39200e-01 |
1.700e-02 |
Gamma |
|
5.45500e-01 |
4.500e-02 |
Gamma |
|
6.47800e-01 |
2.600e-02 |
Gamma |
|
7.81000e-01 |
2.000e-02 |
Gamma |
|
7.88700e-01 |
1.000e-02 |
Gamma |
|
8.36900e-01 |
1.500e-02 |
Gamma |
|
9.02600e-01 |
1.000e-02 |
Gamma |
|
9.31600e-01 |
2.600e-02 |
Gamma |
|
9.35100e-01 |
1.400e-02 |
Gamma |
|
9.92900e-01 |
2.900e-02 |
Gamma |
|
1.02649e+00 |
1.000e+00 |
Gamma |
|
1.10140e+00 |
1.100e-02 |
Gamma |
|
1.17257e+00 |
2.094e-02 |
Positron |
|
1.17756e+00 |
1.780e-02 |
Positron |
|
1.22359e+00 |
5.444e-02 |
Positron |
|
1.30363e+00 |
3.245e-02 |
Positron |
|
4.21818e-05 |
3.728e+00 |
Auger electron |
|
8.22966e-05 |
5.373e+00 |
Auger electron |
|
1.73871e-04 |
2.835e+00 |
Auger electron |
|
4.22825e-04 |
6.300e-01 |
Auger electron |
|
9.82768e-04 |
1.893e-01 |
Auger electron |
|
1.91113e-03 |
1.510e+00 |
Auger electron |
|
2.17176e-03 |
1.882e-01 |
Auger electron |
|
8.05867e-03 |
4.463e-01 |
Auger electron |
|
9.81001e-03 |
2.567e-02 |
Conversion electron |
|
1.04347e-02 |
1.975e-01 |
Auger electron |
|
1.28383e-02 |
2.093e-02 |
Auger electron |
|
1.49600e-02 |
9.585e-02 |
Conversion electron |
|
2.61100e-02 |
6.593e-02 |
Conversion electron |
|
5.87487e-02 |
2.413e-02 |
Auger electron |
|
6.85490e-02 |
2.208e-02 |
Conversion electron |
|
7.07077e-02 |
1.319e-02 |
Auger electron |
|
7.07600e-02 |
1.870e-02 |
Conversion electron |
|
8.07454e-02 |
1.100e-02 |
Conversion electron |
|
8.74030e-02 |
1.505e-02 |
Conversion electron |
|
9.85530e-02 |
1.032e-02 |
Conversion electron |
|
1.12820e-01 |
1.002e-02 |
Conversion electron |
|
1.56860e-01 |
4.821e-02 |
Conversion electron |
|
2.29899e-01 |
2.092e-02 |
Conversion electron |
|
2.32110e-01 |
1.136e-02 |
Conversion electron |
|
2.42095e-01 |
1.019e-02 |
Conversion electron |
|
3.31480e-01 |
1.050e-02 |
Conversion electron |
|
3.74050e-01 |
2.423e-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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