<= Return to MIRDspec isotope database
Radionuclide Dosimetric Data Sheets
Mercury-190
Summary data
General
Classification
Isotope: Hg-190
Atomic number (Z): 80
Mass number (A): 190
Neutron number (N): 110
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 20.0 [m]
Decay constant: 5.7762e-04 [1/s]
Daughters: Au-190 (100.0%)
Radioactive daughters: Au-190
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.05388 [MeV]
Mean photon energy: 0.20182 [MeV]
Air kerma rate constant, Γ10: 1.759e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 1.760e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 8.633e-15 [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-:
8.633e-15 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 3.234e-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-190 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-190 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/Hg-190 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/Hg-190 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.11006e-05 |
2.644e+01 |
X-ray |
|
2.14526e-03 |
8.015e-02 |
X-ray |
|
8.52062e-03 |
1.461e-02 |
X-ray |
|
9.62129e-03 |
2.542e-02 |
X-ray |
|
9.70979e-03 |
2.239e-01 |
X-ray |
|
1.11917e-02 |
1.475e-02 |
X-ray |
|
1.14753e-02 |
1.284e-01 |
X-ray |
|
1.15870e-02 |
4.183e-02 |
X-ray |
|
1.16020e-02 |
1.703e-02 |
X-ray |
|
1.34225e-02 |
2.535e-02 |
X-ray |
|
6.71839e-02 |
2.841e-01 |
X-ray |
|
6.90380e-02 |
4.834e-01 |
X-ray |
|
7.78158e-02 |
5.318e-02 |
X-ray |
|
7.82261e-02 |
1.029e-01 |
X-ray |
|
8.03237e-02 |
1.247e-02 |
X-ray |
|
8.04227e-02 |
2.436e-02 |
X-ray |
|
1.29600e-01 |
1.564e-02 |
Gamma |
|
1.42600e-01 |
6.800e-01 |
Gamma |
|
1.54700e-01 |
2.516e-02 |
Gamma |
|
1.71500e-01 |
4.760e-02 |
Gamma |
|
4.01501e-05 |
5.822e+00 |
Auger electron |
|
6.42774e-05 |
8.911e+00 |
Auger electron |
|
1.74469e-04 |
4.699e+00 |
Auger electron |
|
4.15616e-04 |
9.235e-01 |
Auger electron |
|
6.84651e-04 |
4.715e-01 |
Auger electron |
|
1.75326e-03 |
2.352e+00 |
Auger electron |
|
1.97318e-03 |
2.429e-01 |
Auger electron |
|
2.31097e-03 |
1.193e-02 |
Auger electron |
|
7.47678e-03 |
6.745e-01 |
Auger electron |
|
9.60958e-03 |
2.837e-01 |
Auger electron |
|
1.17742e-02 |
2.894e-02 |
Auger electron |
|
1.45640e-02 |
3.449e-01 |
Conversion electron |
|
1.51240e-02 |
6.534e-02 |
Conversion electron |
|
1.69780e-02 |
3.963e-02 |
Conversion electron |
|
1.98400e-02 |
1.278e-02 |
Conversion electron |
|
2.61660e-02 |
1.064e-01 |
Conversion electron |
|
2.89000e-02 |
3.266e-02 |
Conversion electron |
|
4.86400e-02 |
4.673e-02 |
Conversion electron |
|
5.42437e-02 |
2.586e-02 |
Auger electron |
|
6.16400e-02 |
9.353e-02 |
Conversion electron |
|
6.50992e-02 |
1.393e-02 |
Auger electron |
|
7.37400e-02 |
3.317e-02 |
Conversion electron |
|
1.28264e-01 |
1.073e-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
