<= Return to MIRDspec isotope database
Radionuclide Dosimetric Data Sheets
Rhenium-178
Summary data
General
Classification
Isotope: Re-178
Atomic number (Z): 75
Mass number (A): 178
Neutron number (N): 103
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 13.2 [m]
Decay constant: 8.7519e-04 [1/s]
Daughters: W-178 (100.0%)
Radioactive daughters: W-178
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.61924 [MeV]
Mean photon energy: 1.70849 [MeV]
Air kerma rate constant, Γ10: 4.279e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 5.655e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 9.921e-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-:
9.921e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 2.737e-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-178 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-178 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-178 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-178 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
3.12930e-05 |
1.156e+01 |
X-ray |
|
1.77742e-03 |
4.276e-02 |
X-ray |
|
8.32493e-03 |
1.555e-02 |
X-ray |
|
8.38982e-03 |
1.372e-01 |
X-ray |
|
9.69189e-03 |
1.112e-01 |
X-ray |
|
9.95867e-03 |
2.433e-02 |
X-ray |
|
1.13129e-02 |
2.069e-02 |
X-ray |
|
5.81161e-02 |
2.113e-01 |
X-ray |
|
5.94830e-02 |
3.669e-01 |
X-ray |
|
6.71212e-02 |
3.945e-02 |
X-ray |
|
6.74178e-02 |
7.624e-02 |
X-ray |
|
6.92695e-02 |
1.741e-02 |
X-ray |
|
1.05900e-01 |
2.304e-01 |
Gamma |
|
2.37300e-01 |
4.464e-01 |
Gamma |
|
3.51900e-01 |
2.592e-02 |
Gamma |
|
5.00900e-01 |
1.728e-02 |
Gamma |
|
5.11000e-01 |
7.111e-01 |
Annihilation photon |
|
6.08400e-01 |
1.056e-02 |
Gamma |
|
7.77900e-01 |
3.840e-02 |
Gamma |
|
9.32700e-01 |
1.920e-02 |
Gamma |
|
9.39100e-01 |
8.928e-02 |
Gamma |
|
9.76600e-01 |
3.552e-02 |
Gamma |
|
1.11080e+00 |
2.688e-02 |
Gamma |
|
1.13060e+00 |
3.264e-02 |
Gamma |
|
1.25530e+00 |
1.440e-02 |
Gamma |
|
1.27560e+00 |
1.056e-02 |
Gamma |
|
1.31150e+00 |
1.152e-02 |
Gamma |
|
1.45000e+00 |
1.056e-02 |
Gamma |
|
1.49230e+00 |
1.440e-02 |
Gamma |
|
1.59840e+00 |
1.248e-02 |
Gamma |
|
1.19090e+00 |
1.104e-02 |
Positron |
|
1.19564e+00 |
1.104e-02 |
Positron |
|
1.20829e+00 |
1.003e-02 |
Positron |
|
1.22537e+00 |
2.508e-02 |
Positron |
|
1.54452e+00 |
1.605e-01 |
Positron |
|
1.65319e+00 |
1.104e-01 |
Positron |
|
2.53518e-05 |
2.287e+00 |
Auger electron |
|
1.61480e-04 |
3.933e+00 |
Auger electron |
|
3.13944e-04 |
1.361e-01 |
Auger electron |
|
3.18418e-04 |
7.659e-01 |
Auger electron |
|
7.59729e-04 |
1.423e-01 |
Auger electron |
|
1.47336e-03 |
1.824e+00 |
Auger electron |
|
1.65949e-03 |
1.175e-01 |
Auger electron |
|
6.54506e-03 |
5.792e-01 |
Auger electron |
|
8.30159e-03 |
2.223e-01 |
Auger electron |
|
1.00870e-02 |
2.126e-02 |
Auger electron |
|
3.62110e-02 |
1.817e-01 |
Conversion electron |
|
4.71853e-02 |
2.217e-02 |
Auger electron |
|
5.63739e-02 |
1.162e-02 |
Auger electron |
|
9.38230e-02 |
1.966e-02 |
Conversion electron |
|
9.43270e-02 |
2.088e-01 |
Conversion electron |
|
9.56940e-02 |
1.840e-01 |
Conversion electron |
|
1.03629e-01 |
1.047e-01 |
Conversion electron |
|
1.05900e-01 |
2.914e-02 |
Conversion electron |
|
1.67611e-01 |
4.769e-02 |
Conversion electron |
|
2.25727e-01 |
1.118e-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)
<= Return to MIRDspec isotope database
