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Radionuclide Dosimetric Data Sheets

Gold-196

Isotope:  Au-196
Atomic number (Z):  79
Mass number (A):  196
Neutron number (N):  117

Decay modes:  β-, Electron capture
Half-life:  6.183 [d]
Decay constant:  1.2975e-06 [1/s]
Daughters:  Pt-196 (92.8%), Hg-196 (7.2%)
Radioactive daughters:  None

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.03718 [MeV]
Mean photon energy:  0.47336 [MeV]
Air kerma rate constant, Γ₁₀:  2.354e-17 [Gy·m²/Bq·s]
Air kerma coefficient, K_air:  2.354e-17 [Gy·m²/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δ_wp:  5.957e-15 [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-:  5.957e-15 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δ_p:  7.584e-14 [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/Au-196 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/Au-196 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/Au-196 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/Au-196 Summary Spectrum.csv

 

Energy [MeV]	Yield [#/nt] if > 0.01	Radiation type
1.01422e-05	1.361e+01	X-ray
1.47061e-05	3.429e-02	X-ray
2.06867e-03	3.853e-02	X-ray
9.35457e-03	1.336e-02	X-ray
9.43805e-03	1.178e-01	X-ray
1.11006e-02	7.345e-02	X-ray
1.12510e-02	2.178e-02	X-ray
1.29799e-02	1.433e-02	X-ray
6.53020e-02	2.199e-01	X-ray
6.70480e-02	3.758e-01	X-ray
7.55931e-02	4.116e-02	X-ray
7.59780e-02	7.960e-02	X-ray
7.81028e-02	1.871e-02	X-ray
3.33030e-01	2.289e-01	Gamma
3.55730e-01	8.705e-01	Gamma
4.26100e-01	6.631e-02	Gamma
7.18720e-02	6.900e-02	Beta
3.74691e-05	2.897e+00	Auger electron
5.59391e-05	4.680e+00	Auger electron
6.99271e-05	1.136e-02	Auger electron
1.71213e-04	2.464e+00	Auger electron
4.06024e-04	4.437e-01	Auger electron
7.09982e-04	1.572e-01	Auger electron
1.69608e-03	1.215e+00	Auger electron
1.90663e-03	1.157e-01	Auger electron
7.25436e-03	3.693e-01	Auger electron
9.30379e-03	1.523e-01	Auger electron
1.13816e-02	1.532e-02	Auger electron
5.27836e-02	2.054e-02	Auger electron
6.32891e-02	1.100e-02	Auger electron
2.54415e-01	1.209e-02	Conversion electron
2.77115e-01	3.523e-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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