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Radionuclide Dosimetric Data Sheets
Gadolinium-162
Summary data
General
Classification
Isotope: Gd-162
Atomic number (Z): 64
Mass number (A): 162
Neutron number (N): 98
Radioactive decay
Decay modes: β-
Half-life: 8.4 [m]
Decay constant: 1.3753e-03 [1/s]
Daughters: Tb-162 (100.0%)
Radioactive daughters: Tb-162
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.33866 [MeV]
Mean photon energy: 0.41701 [MeV]
Air kerma rate constant, Γ10: 1.583e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 1.583e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 5.426e-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-:
5.426e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 6.681e-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/Gd-162 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/Gd-162 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/Gd-162 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/Gd-162 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.39350e-05 |
4.031e+00 |
X-ray |
|
6.26070e-03 |
1.506e-02 |
X-ray |
|
6.98190e-03 |
1.387e-02 |
X-ray |
|
7.07629e-03 |
1.030e-02 |
X-ray |
|
3.90000e-02 |
5.100e-02 |
Gamma |
|
3.02300e-01 |
1.581e-02 |
Gamma |
|
3.41420e-01 |
2.703e-02 |
Gamma |
|
4.03000e-01 |
4.335e-01 |
Gamma |
|
4.42120e-01 |
5.100e-01 |
Gamma |
|
3.17875e-01 |
9.550e-01 |
Beta |
|
3.57938e-01 |
4.500e-02 |
Beta |
|
1.73725e-05 |
2.553e-01 |
Auger electron |
|
1.21343e-04 |
1.854e+00 |
Auger electron |
|
1.45525e-04 |
1.183e-01 |
Auger electron |
|
2.01008e-04 |
3.419e-01 |
Auger electron |
|
6.55438e-04 |
1.757e-01 |
Auger electron |
|
9.70219e-04 |
5.354e-01 |
Auger electron |
|
1.16033e-03 |
3.136e-02 |
Auger electron |
|
5.19961e-03 |
1.921e-01 |
Auger electron |
|
6.43385e-03 |
6.806e-02 |
Auger electron |
|
3.03269e-02 |
2.888e-01 |
Conversion electron |
|
3.07391e-02 |
2.548e-02 |
Conversion electron |
|
3.74032e-02 |
6.971e-02 |
Conversion electron |
|
3.90000e-02 |
1.957e-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)
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