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Radionuclide Dosimetric Data Sheets
Krypton-83m
Summary data
General
Classification
Isotope: Kr-83m
Atomic number (Z): 36
Mass number (A): 83
Neutron number (N): 47
Radioactive decay
Decay modes: Internal transition
Half-life: 1.83 [h]
Decay constant: 1.0521e-04 [1/s]
Daughters: Kr-83 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.03881 [MeV]
Mean photon energy: 0.00275 [MeV]
Air kerma rate constant, Γ10: 5.466e-18 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 5.466e-18 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 6.218e-15 [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-:
6.218e-15 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 4.406e-16
[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/Kr-83m 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/Kr-83m Summary 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/Kr-83m Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.94039e-05 |
1.105e+01 |
X-ray |
|
1.57942e-03 |
1.743e-02 |
X-ray |
|
9.40510e-03 |
5.580e-02 |
Gamma |
|
1.25517e-02 |
4.483e-02 |
X-ray |
|
1.26066e-02 |
8.644e-02 |
X-ray |
|
1.40730e-02 |
1.230e-02 |
X-ray |
|
5.65028e-05 |
4.815e+00 |
Auger electron |
|
6.58240e-05 |
1.921e+00 |
Auger electron |
|
1.05322e-04 |
6.319e-01 |
Auger electron |
|
1.41375e-03 |
1.562e+00 |
Auger electron |
|
1.52261e-03 |
1.148e-01 |
Auger electron |
|
7.50280e-03 |
6.648e-01 |
Conversion electron |
|
7.67680e-03 |
7.487e-02 |
Conversion electron |
|
7.73170e-03 |
5.714e-02 |
Conversion electron |
|
9.19814e-03 |
1.319e-01 |
Conversion electron |
|
9.40510e-03 |
1.551e-02 |
Conversion electron |
|
1.07980e-02 |
6.392e-02 |
Auger electron |
|
1.23371e-02 |
2.029e-02 |
Auger electron |
|
1.78698e-02 |
2.373e-01 |
Conversion electron |
|
3.02475e-02 |
1.580e-02 |
Conversion electron |
|
3.04215e-02 |
2.447e-01 |
Conversion electron |
|
3.04764e-02 |
3.813e-01 |
Conversion electron |
|
3.19428e-02 |
1.105e-01 |
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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