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Radionuclide Dosimetric Data Sheets

Mercury-192

Summary data

General

Classification

Isotope:  Hg-192
Atomic number (Z):  80
Mass number (A):  192
Neutron number (N):  112

Radioactive decay

Decay modes:  Electron capture
Half-life:  4.85 [h]
Decay constant:  3.9699e-05 [1/s]
Daughters:  Au-192 (100.0%)
Radioactive daughters:  Au-192

Dosimetric constants

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.06359 [MeV]
Mean photon energy:  0.27489 [MeV]
Air kerma rate constant, Γ10:  2.112e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair:  2.112e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δwp:  1.019e-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-:  1.019e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp:  4.404e-14 [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/Hg-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/Hg-192 Summary 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/Hg-192 Summary Spectrum.csv

 

Energy [MeV]

Yield [#/nt] if > 0.01

Radiation type

1.11003e-05

2.791e+01

X-ray

2.14515e-03

8.460e-02

X-ray

8.52062e-03

1.546e-02

X-ray

9.62128e-03

2.691e-02

X-ray

9.70979e-03

2.371e-01

X-ray

1.11917e-02

1.588e-02

X-ray

1.14753e-02

1.323e-01

X-ray

1.15870e-02

4.429e-02

X-ray

1.16020e-02

1.833e-02

X-ray

1.34225e-02

2.612e-02

X-ray

3.16100e-02

1.220e-02

Gamma

6.71839e-02

3.070e-01

X-ray

6.90380e-02

5.224e-01

X-ray

7.78158e-02

5.746e-02

X-ray

7.82261e-02

1.112e-01

X-ray

8.03237e-02

1.347e-02

X-ray

8.04227e-02

2.633e-02

X-ray

1.01900e-01

1.185e-02

Gamma

1.57200e-01

6.970e-02

Gamma

1.86400e-01

3.276e-02

Gamma

2.45400e-01

1.673e-02

Gamma

2.74800e-01

5.018e-01

Gamma

3.06500e-01

5.367e-02

Gamma

4.01504e-05

6.147e+00

Auger electron

6.42838e-05

9.407e+00

Auger electron

1.74455e-04

4.959e+00

Auger electron

4.15468e-04

9.760e-01

Auger electron

6.80798e-04

5.049e-01

Auger electron

1.75306e-03

2.483e+00

Auger electron

1.97290e-03

2.564e-01

Auger electron

2.31070e-03

1.259e-02

Auger electron

7.47200e-03

7.107e-01

Auger electron

9.60465e-03

2.988e-01

Auger electron

1.17691e-02

3.049e-02

Auger electron

1.72740e-02

3.386e-01

Conversion electron

1.78340e-02

6.973e-02

Conversion electron

1.84400e-02

3.663e-02

Conversion electron

1.96880e-02

4.459e-02

Conversion electron

2.88760e-02

1.074e-01

Conversion electron

3.16100e-02

3.288e-02

Conversion electron

3.35400e-02

3.140e-02

Conversion electron

3.55400e-02

1.090e-02

Conversion electron

3.91400e-02

2.845e-02

Conversion electron

5.42437e-02

2.794e-02

Auger electron

5.49400e-02

1.994e-02

Conversion electron

6.15400e-02

1.510e-02

Conversion electron

6.50400e-02

1.618e-02

Conversion electron

6.50992e-02

1.505e-02

Auger electron

7.62400e-02

1.202e-01

Conversion electron

1.42864e-01

1.818e-02

Conversion electron

1.93840e-01

1.382e-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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