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Radionuclide Dosimetric Data Sheets
Zirconium-86
Summary data
General
Classification
Isotope: Zr-86
Atomic number (Z): 40
Mass number (A): 86
Neutron number (N): 46
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 16.5 [h]
Decay constant: 1.1669e-05 [1/s]
Daughters: Y-86 (100.0%)
Radioactive daughters: Y-86
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.03103 [MeV]
Mean photon energy: 0.29523 [MeV]
Air kerma rate constant, Γ10: 3.939e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 3.942e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 4.972e-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-:
4.972e-15 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 4.730e-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/Zr-86 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/Zr-86 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/Zr-86 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/Zr-86 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
5.29808e-06 |
2.397e+01 |
X-ray |
|
1.91499e-03 |
3.019e-02 |
X-ray |
|
1.99096e-03 |
1.505e-02 |
X-ray |
|
1.48403e-02 |
3.310e-01 |
X-ray |
|
1.49185e-02 |
6.342e-01 |
X-ray |
|
1.66877e-02 |
4.914e-02 |
X-ray |
|
1.67001e-02 |
9.574e-02 |
X-ray |
|
1.69678e-02 |
1.395e-02 |
X-ray |
|
2.91000e-02 |
2.156e-01 |
Gamma |
|
2.42800e-01 |
9.584e-01 |
Gamma |
|
6.12000e-01 |
5.750e-02 |
Gamma |
|
2.02950e-05 |
1.333e+01 |
Auger electron |
|
9.45647e-05 |
4.088e+00 |
Auger electron |
|
9.62459e-05 |
1.825e+00 |
Auger electron |
|
1.00091e-04 |
3.622e-01 |
Auger electron |
|
1.31687e-04 |
1.504e-01 |
Auger electron |
|
1.66206e-03 |
1.725e+00 |
Auger electron |
|
1.82664e-03 |
1.725e-01 |
Auger electron |
|
1.21000e-02 |
6.943e-01 |
Conversion electron |
|
1.26657e-02 |
3.405e-01 |
Auger electron |
|
1.45497e-02 |
1.184e-01 |
Auger electron |
|
2.67451e-02 |
5.900e-02 |
Conversion electron |
|
2.69403e-02 |
1.081e-02 |
Conversion electron |
|
2.70185e-02 |
1.834e-02 |
Conversion electron |
|
2.88001e-02 |
1.504e-02 |
Conversion electron |
|
2.25800e-01 |
3.568e-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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