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Radionuclide Dosimetric Data Sheets

Rhenium-189

Isotope:  Re-189
Atomic number (Z):  75
Mass number (A):  189
Neutron number (N):  114

Decay modes:  β-
Half-life:  24.3 [h]
Decay constant:  7.9235e-06 [1/s]
Daughters:  Os-189m (12.2%), Os-189 (87.8%)
Radioactive daughters:  Os-189m

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.32599 [MeV]
Mean photon energy:  0.05564 [MeV]
Air kerma rate constant, Γ₁₀:  3.395e-18 [Gy·m²/Bq·s]
Air kerma coefficient, K_air:  3.395e-18 [Gy·m²/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δ_wp:  5.223e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for alphas, Δ_α:  0.000e+00 [Gy·kg/Bq·s]
Equilibrium dose constant for betas/electrons, Δ_β-,β+,e-:  5.223e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δ_p:  8.915e-15 [Gy·kg/Bq·s]

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/Re-189 DPK.csv

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/Re-189 Summary Spectrum.csv

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/Re-189 Beta Spectrum.csv

 

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/Re-189 Summary Spectrum.csv

 

Energy [MeV]	Yield [#/nt] if > 0.01	Radiation type
4.39706e-05	1.768e+00	X-ray
8.90609e-03	2.130e-02	X-ray
1.03795e-02	1.514e-02	X-ray
6.16420e-02	1.429e-02	X-ray
6.31890e-02	2.462e-02	X-ray
1.47090e-01	1.243e-02	Gamma
1.85890e-01	1.886e-02	Gamma
2.16680e-01	5.500e-02	Gamma
2.19400e-01	4.537e-02	Gamma
2.45080e-01	3.520e-02	Gamma
1.18770e-01	1.237e-02	Beta
2.31058e-01	5.455e-02	Beta
2.51842e-01	7.403e-02	Beta
2.52853e-01	1.237e-01	Beta
3.08319e-01	2.240e-02	Beta
3.23694e-01	3.604e-02	Beta
3.25650e-01	3.896e-02	Beta
3.35115e-01	6.234e-01	Beta
2.96045e-05	3.464e-01	Auger electron
1.63739e-04	5.863e-01	Auger electron
3.38724e-04	1.196e-01	Auger electron
3.47151e-04	2.400e-02	Auger electron
5.54663e-04	5.367e-02	Auger electron
1.58254e-03	2.783e-01	Auger electron
1.78009e-03	2.176e-02	Auger electron
6.94301e-03	8.056e-02	Auger electron
8.84833e-03	3.205e-02	Auger electron
2.32200e-02	3.330e-02	Conversion electron
5.65780e-02	1.126e-02	Conversion electron
5.71040e-02	2.006e-02	Conversion electron
5.86510e-02	1.861e-02	Conversion electron
6.70763e-02	1.251e-02	Conversion electron
7.30240e-02	1.315e-02	Conversion electron

 

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

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

 

 

 

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