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Radionuclide Dosimetric Data Sheets

Gold-192

Summary data

General

Classification

Isotope:  Au-192
Atomic number (Z):  79
Mass number (A):  192
Neutron number (N):  113

Radioactive decay

Decay modes:  β+, Electron capture
Half-life:  4.94 [h]
Decay constant:  3.8976e-05 [1/s]
Daughters:  Pt-192 (100.0%)
Radioactive daughters:  None

Dosimetric constants

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.09044 [MeV]
Mean photon energy:  1.93919 [MeV]
Air kerma rate constant, Γ10:  6.666e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair:  6.867e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δwp:  1.449e-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-:  1.449e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp:  3.107e-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-192 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-192 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-192 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-192 Summary Spectrum.csv

 

Energy [MeV]

Yield [#/nt] if > 0.01

Radiation type

1.01423e-05

1.405e+01

X-ray

2.06869e-03

3.979e-02

X-ray

9.35456e-03

1.380e-02

X-ray

9.43805e-03

1.217e-01

X-ray

1.11006e-02

7.644e-02

X-ray

1.12510e-02

2.250e-02

X-ray

1.29799e-02

1.492e-02

X-ray

6.53020e-02

2.277e-01

X-ray

6.70480e-02

3.891e-01

X-ray

7.55931e-02

4.262e-02

X-ray

7.59780e-02

8.242e-02

X-ray

7.81028e-02

1.938e-02

X-ray

2.95957e-01

2.233e-01

Gamma

3.08455e-01

3.445e-02

Gamma

3.16506e-01

5.800e-01

Gamma

4.68069e-01

1.746e-02

Gamma

4.77060e-01

1.079e-02

Gamma

5.11000e-01

1.040e-01

Annihilation photon

5.82630e-01

2.680e-02

Gamma

6.04411e-01

1.009e-02

Gamma

6.12462e-01

4.338e-02

Gamma

7.59060e-01

1.653e-02

Gamma

1.12280e+00

1.102e-02

Gamma

1.12701e+00

1.462e-02

Gamma

1.12701e+00

1.462e-02

Gamma

1.14038e+00

2.610e-02

Gamma

1.42298e+00

2.975e-02

Gamma

1.57655e+00

2.262e-02

Gamma

1.62440e+00

1.670e-02

Gamma

1.70658e+00

1.920e-02

Gamma

1.72307e+00

3.109e-02

Gamma

1.78660e+00

1.102e-02

Gamma

1.83284e+00

3.190e-02

Gamma

1.92121e+00

3.248e-02

Gamma

1.94081e+00

1.624e-02

Gamma

2.01923e+00

1.479e-02

Gamma

2.23689e+00

5.568e-02

Gamma

2.31937e+00

1.566e-02

Gamma

2.33570e+00

1.740e-02

Gamma

2.42287e+00

1.125e-02

Gamma

9.84750e-01

1.604e-02

Positron

1.12600e+00

3.208e-02

Positron

3.74689e-05

2.991e+00

Auger electron

5.59339e-05

4.831e+00

Auger electron

1.71215e-04

2.544e+00

Auger electron

4.06020e-04

4.576e-01

Auger electron

7.13910e-04

1.600e-01

Auger electron

1.69613e-03

1.255e+00

Auger electron

1.90669e-03

1.194e-01

Auger electron

7.25512e-03

3.819e-01

Auger electron

9.30453e-03

1.575e-01

Auger electron

1.13822e-02

1.584e-02

Auger electron

5.27836e-02

2.127e-02

Auger electron

6.32891e-02

1.139e-02

Auger electron

2.17342e-01

1.464e-02

Conversion electron

2.37891e-01

3.117e-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

 

 

 

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