<= Return to MIRDspec isotope database
Radionuclide Dosimetric Data Sheets
Gold-186
Summary data
General
Classification
Isotope: Au-186
Atomic number (Z): 79
Mass number (A): 186
Neutron number (N): 107
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 10.7 [m]
Decay constant: 1.0797e-03 [1/s]
Daughters: Pt-186 (100.0%)
Radioactive daughters: Pt-186
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 1.07511 [MeV]
Mean photon energy: 1.49834 [MeV]
Air kerma rate constant, Γ10: 3.923e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 5.910e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.723e-13 [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-:
1.723e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 2.401e-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/Au-186 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/Au-186 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/Au-186 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/Au-186 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.01437e-05 |
1.104e+01 |
X-ray |
|
2.06965e-03 |
3.121e-02 |
X-ray |
|
9.35457e-03 |
1.053e-02 |
X-ray |
|
9.43805e-03 |
9.278e-02 |
X-ray |
|
1.11006e-02 |
6.826e-02 |
X-ray |
|
1.12510e-02 |
1.716e-02 |
X-ray |
|
1.29799e-02 |
1.332e-02 |
X-ray |
|
6.53020e-02 |
1.597e-01 |
X-ray |
|
6.70480e-02 |
2.729e-01 |
X-ray |
|
7.55931e-02 |
2.990e-02 |
X-ray |
|
7.59780e-02 |
5.782e-02 |
X-ray |
|
7.81028e-02 |
1.359e-02 |
X-ray |
|
1.91530e-01 |
6.200e-01 |
Gamma |
|
2.05000e-01 |
2.046e-02 |
Gamma |
|
2.79700e-01 |
1.364e-02 |
Gamma |
|
2.98840e-01 |
2.542e-01 |
Gamma |
|
3.49400e-01 |
1.302e-02 |
Gamma |
|
3.84300e-01 |
1.860e-02 |
Gamma |
|
3.87000e-01 |
1.054e-02 |
Gamma |
|
4.15560e-01 |
8.494e-02 |
Gamma |
|
4.30300e-01 |
1.798e-02 |
Gamma |
|
4.40300e-01 |
1.240e-02 |
Gamma |
|
4.66300e-01 |
1.302e-02 |
Gamma |
|
5.01300e-01 |
2.170e-02 |
Gamma |
|
5.11000e-01 |
1.027e+00 |
Annihilation photon |
|
6.07200e-01 |
5.270e-02 |
Gamma |
|
6.09400e-01 |
1.488e-02 |
Gamma |
|
6.76500e-01 |
3.286e-02 |
Gamma |
|
7.32400e-01 |
1.116e-02 |
Gamma |
|
7.65400e-01 |
1.054e-01 |
Gamma |
|
7.91000e-01 |
1.240e-02 |
Gamma |
|
7.98700e-01 |
5.332e-02 |
Gamma |
|
7.99900e-01 |
1.302e-02 |
Gamma |
|
8.00400e-01 |
1.302e-02 |
Gamma |
|
8.73100e-01 |
1.240e-02 |
Gamma |
|
8.81600e-01 |
2.108e-02 |
Gamma |
|
9.84500e-01 |
1.302e-02 |
Gamma |
|
1.03100e+00 |
1.364e-02 |
Gamma |
|
1.21620e+00 |
3.720e-02 |
Gamma |
|
1.28920e+00 |
2.046e-02 |
Gamma |
|
1.72590e+00 |
1.240e-02 |
Gamma |
|
1.73760e+00 |
1.860e-02 |
Gamma |
|
2.02460e+00 |
1.984e-02 |
Gamma |
|
2.03560e+00 |
2.852e-02 |
Gamma |
|
1.29494e+00 |
1.421e-02 |
Positron |
|
1.47099e+00 |
2.944e-02 |
Positron |
|
1.66676e+00 |
1.929e-02 |
Positron |
|
1.75143e+00 |
1.421e-02 |
Positron |
|
1.85732e+00 |
2.437e-02 |
Positron |
|
1.87339e+00 |
3.452e-02 |
Positron |
|
1.94606e+00 |
2.640e-02 |
Positron |
|
2.03423e+00 |
4.975e-02 |
Positron |
|
2.08817e+00 |
8.833e-02 |
Positron |
|
2.22649e+00 |
1.625e-01 |
Positron |
|
3.74658e-05 |
2.348e+00 |
Auger electron |
|
5.59558e-05 |
3.796e+00 |
Auger electron |
|
1.71341e-04 |
2.002e+00 |
Auger electron |
|
4.07679e-04 |
3.603e-01 |
Auger electron |
|
7.68648e-04 |
1.094e-01 |
Auger electron |
|
1.69773e-03 |
9.838e-01 |
Auger electron |
|
1.90915e-03 |
9.380e-02 |
Auger electron |
|
7.28860e-03 |
3.016e-01 |
Auger electron |
|
9.33943e-03 |
1.245e-01 |
Auger electron |
|
1.14187e-02 |
1.253e-02 |
Auger electron |
|
5.27836e-02 |
1.492e-02 |
Auger electron |
|
1.12915e-01 |
1.176e-01 |
Conversion electron |
|
1.26385e-01 |
1.432e-02 |
Conversion electron |
|
1.77668e-01 |
1.452e-02 |
Conversion electron |
|
1.78217e-01 |
5.660e-02 |
Conversion electron |
|
1.79963e-01 |
3.720e-02 |
Conversion electron |
|
1.88893e-01 |
2.780e-02 |
Conversion electron |
|
2.20225e-01 |
1.575e-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
