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Radionuclide Dosimetric Data Sheets
Rhenium-179
Summary data
General
Classification
Isotope: Re-179
Atomic number (Z): 75
Mass number (A): 179
Neutron number (N): 104
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 19.5 [m]
Decay constant: 5.9243e-04 [1/s]
Daughters: W-179 (76.1%), W-179m (23.9%)
Radioactive daughters: W-179, W-179m
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.06683 [MeV]
Mean photon energy: 1.08411 [MeV]
Air kerma rate constant, Γ10: 3.886e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 3.928e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.071e-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-:
1.071e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 1.737e-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/Re-179 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/Re-179 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/Re-179 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/Re-179 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
3.12550e-05 |
1.233e+01 |
X-ray |
|
1.77657e-03 |
4.559e-02 |
X-ray |
|
8.32493e-03 |
1.697e-02 |
X-ray |
|
8.38982e-03 |
1.497e-01 |
X-ray |
|
9.69189e-03 |
9.981e-02 |
X-ray |
|
9.95867e-03 |
2.655e-02 |
X-ray |
|
1.13129e-02 |
1.858e-02 |
X-ray |
|
5.81161e-02 |
2.672e-01 |
X-ray |
|
5.94830e-02 |
4.638e-01 |
X-ray |
|
6.71212e-02 |
4.988e-02 |
X-ray |
|
6.74178e-02 |
9.638e-02 |
X-ray |
|
6.92004e-02 |
1.135e-02 |
X-ray |
|
6.92695e-02 |
2.201e-02 |
X-ray |
|
8.28100e-02 |
1.456e-02 |
Gamma |
|
1.19900e-01 |
4.788e-02 |
Gamma |
|
1.68380e-01 |
2.240e-02 |
Gamma |
|
1.89110e-01 |
7.504e-02 |
Gamma |
|
2.42400e-01 |
1.680e-02 |
Gamma |
|
2.89970e-01 |
2.688e-01 |
Gamma |
|
2.96340e-01 |
8.904e-02 |
Gamma |
|
3.08870e-01 |
3.304e-02 |
Gamma |
|
3.09300e-01 |
1.456e-02 |
Gamma |
|
3.57350e-01 |
1.344e-02 |
Gamma |
|
4.00400e-01 |
1.120e-02 |
Gamma |
|
4.01820e-01 |
7.196e-02 |
Gamma |
|
4.11530e-01 |
1.120e-02 |
Gamma |
|
4.15440e-01 |
1.061e-01 |
Gamma |
|
4.30240e-01 |
2.800e-01 |
Gamma |
|
4.55320e-01 |
1.484e-02 |
Gamma |
|
4.64750e-01 |
3.752e-02 |
Gamma |
|
4.77340e-01 |
9.240e-02 |
Gamma |
|
4.98280e-01 |
5.684e-02 |
Gamma |
|
5.11000e-01 |
2.172e-02 |
Annihilation photon |
|
8.32630e-01 |
2.996e-02 |
Gamma |
|
8.86150e-01 |
2.520e-02 |
Gamma |
|
1.37127e+00 |
1.075e-02 |
Gamma |
|
1.56037e+00 |
3.220e-02 |
Gamma |
|
1.68027e+00 |
1.299e-01 |
Gamma |
|
1.80888e+00 |
2.240e-02 |
Gamma |
|
2.53720e-05 |
2.444e+00 |
Auger electron |
|
1.61342e-04 |
4.187e+00 |
Auger electron |
|
3.14898e-04 |
1.454e-01 |
Auger electron |
|
3.18047e-04 |
8.147e-01 |
Auger electron |
|
6.76491e-04 |
2.009e-01 |
Auger electron |
|
1.47166e-03 |
1.946e+00 |
Auger electron |
|
1.65663e-03 |
1.250e-01 |
Auger electron |
|
6.51900e-03 |
6.074e-01 |
Auger electron |
|
8.27541e-03 |
2.330e-01 |
Auger electron |
|
1.00615e-02 |
2.228e-02 |
Auger electron |
|
1.22230e-02 |
4.239e-02 |
Conversion electron |
|
1.31210e-02 |
1.582e-02 |
Conversion electron |
|
2.20288e-02 |
1.072e-02 |
Conversion electron |
|
4.13730e-02 |
1.771e-02 |
Conversion electron |
|
4.18770e-02 |
2.122e-02 |
Conversion electron |
|
4.32440e-02 |
2.105e-02 |
Conversion electron |
|
4.71853e-02 |
2.803e-02 |
Auger electron |
|
5.02110e-02 |
4.058e-02 |
Conversion electron |
|
5.11788e-02 |
1.473e-02 |
Conversion electron |
|
5.63739e-02 |
1.469e-02 |
Auger electron |
|
7.12370e-02 |
4.129e-02 |
Conversion electron |
|
7.26040e-02 |
3.924e-02 |
Conversion electron |
|
8.05388e-02 |
2.098e-02 |
Conversion electron |
|
9.86910e-02 |
1.752e-02 |
Conversion electron |
|
1.08327e-01 |
2.162e-02 |
Conversion electron |
|
1.09694e-01 |
1.810e-02 |
Conversion electron |
|
1.17629e-01 |
1.125e-02 |
Conversion electron |
|
2.26651e-01 |
1.751e-02 |
Conversion electron |
|
3.60551e-01 |
2.039e-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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