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Radionuclide Dosimetric Data Sheets
Plutonium-243
Summary data
General
Classification
Isotope: Pu-243
Atomic number (Z): 94
Mass number (A): 243
Neutron number (N): 149
Radioactive decay
Decay modes: β-
Half-life: 4.956 [h]
Decay constant: 3.8850e-05 [1/s]
Daughters: Am-243 (100.0%)
Radioactive daughters: Am-243
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.17294 [MeV]
Mean photon energy: 0.02587 [MeV]
Air kerma rate constant, Γ10: 3.388e-18 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 3.388e-18 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 2.771e-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-:
2.771e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 4.145e-15
[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/Pu-243 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/Pu-243 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/Pu-243 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/Pu-243 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
7.21382e-05 |
3.882e+00 |
X-ray |
|
3.54991e-03 |
2.578e-02 |
X-ray |
|
1.46345e-02 |
4.769e-02 |
X-ray |
|
1.77003e-02 |
1.022e-02 |
X-ray |
|
1.89584e-02 |
2.362e-02 |
X-ray |
|
8.40000e-02 |
2.299e-01 |
Gamma |
|
3.00649e-02 |
1.269e-02 |
Beta |
|
1.25598e-01 |
3.496e-02 |
Beta |
|
1.36570e-01 |
4.995e-02 |
Beta |
|
1.40698e-01 |
2.298e-02 |
Beta |
|
1.44714e-01 |
2.098e-01 |
Beta |
|
1.58373e-01 |
7.992e-02 |
Beta |
|
1.72344e-01 |
5.894e-01 |
Beta |
|
9.52358e-05 |
1.093e+00 |
Auger electron |
|
1.91436e-04 |
5.961e-01 |
Auger electron |
|
2.61578e-04 |
1.018e+00 |
Auger electron |
|
6.22821e-04 |
1.797e-01 |
Auger electron |
|
1.37300e-03 |
5.556e-02 |
Conversion electron |
|
1.94461e-03 |
1.151e-01 |
Auger electron |
|
2.61426e-03 |
3.240e-01 |
Auger electron |
|
3.17959e-03 |
6.922e-02 |
Auger electron |
|
1.01730e-02 |
2.338e-02 |
Conversion electron |
|
1.10910e-02 |
7.259e-02 |
Auger electron |
|
1.47683e-02 |
3.803e-02 |
Auger electron |
|
1.83730e-02 |
3.953e-02 |
Conversion electron |
|
1.91380e-02 |
2.785e-02 |
Conversion electron |
|
2.05145e-02 |
1.525e-02 |
Conversion electron |
|
2.36730e-02 |
2.041e-02 |
Conversion electron |
|
3.01730e-02 |
1.338e-02 |
Conversion electron |
|
3.75145e-02 |
2.309e-02 |
Conversion electron |
|
6.01730e-02 |
1.554e-02 |
Conversion electron |
|
6.09380e-02 |
1.163e-02 |
Conversion electron |
|
6.54730e-02 |
1.032e-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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