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Radionuclide Dosimetric Data Sheets
Argon-43
Summary data
General
Classification
Isotope: Ar-43
Atomic number (Z): 18
Mass number (A): 43
Neutron number (N): 25
Radioactive decay
Decay modes: β-
Half-life: 5.37 [m]
Decay constant: 2.1513e-03 [1/s]
Daughters: K-43 (100.0%)
Radioactive daughters: K-43
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 1.35695 [MeV]
Mean photon energy: 1.53518 [MeV]
Air kerma rate constant, Γ10: 5.021e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 5.021e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 2.174e-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-:
2.174e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 2.460e-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/Ar-43 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/Ar-43 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/Ar-43 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/Ar-43 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
4.13900e-01 |
1.459e-02 |
Gamma |
|
4.79200e-01 |
3.944e-02 |
Gamma |
|
5.61100e-01 |
3.196e-02 |
Gamma |
|
7.38100e-01 |
1.546e-01 |
Gamma |
|
8.90400e-01 |
4.022e-02 |
Gamma |
|
9.74900e-01 |
3.400e-01 |
Gamma |
|
1.11010e+00 |
1.061e-02 |
Gamma |
|
1.20240e+00 |
3.342e-02 |
Gamma |
|
1.20710e+00 |
2.577e-02 |
Gamma |
|
1.36990e+00 |
6.800e-02 |
Gamma |
|
1.43980e+00 |
1.255e-01 |
Gamma |
|
1.44300e+00 |
1.632e-02 |
Gamma |
|
1.86610e+00 |
2.394e-02 |
Gamma |
|
2.31890e+00 |
1.054e-02 |
Gamma |
|
2.33390e+00 |
2.785e-02 |
Gamma |
|
2.34450e+00 |
7.388e-02 |
Gamma |
|
2.47990e+00 |
2.227e-02 |
Gamma |
|
3.61678e-01 |
2.178e-02 |
Beta |
|
4.54950e-01 |
3.464e-02 |
Beta |
|
5.18811e-01 |
5.444e-02 |
Beta |
|
6.06254e-01 |
1.089e-02 |
Beta |
|
9.57741e-01 |
1.881e-01 |
Beta |
|
1.01593e+00 |
1.584e-01 |
Beta |
|
1.48100e+00 |
1.485e-02 |
Beta |
|
1.59299e+00 |
1.584e-01 |
Beta |
|
1.70812e+00 |
1.386e-02 |
Beta |
|
2.06748e+00 |
2.969e-01 |
Beta |
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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