<= Return to MIRDspec isotope database
Radionuclide Dosimetric Data Sheets
Terbium-164
Summary data
General
Classification
Isotope: Tb-164
Atomic number (Z): 65
Mass number (A): 164
Neutron number (N): 99
Radioactive decay
Decay modes: β-
Half-life: 3.0 [m]
Decay constant: 3.8508e-03 [1/s]
Daughters: Dy-164 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.82488 [MeV]
Mean photon energy: 2.44553 [MeV]
Air kerma rate constant, Γ10: 8.593e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 8.593e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.322e-13 [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-:
1.322e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 3.918e-13
[Gy·kg/Bq·s]
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/Tb-164 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/Tb-164 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/Tb-164 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.36936e-05 |
7.464e+00 |
X-ray |
|
1.22873e-03 |
1.451e-02 |
X-ray |
|
6.48150e-03 |
5.851e-02 |
X-ray |
|
7.25410e-03 |
5.040e-02 |
X-ray |
|
4.52703e-02 |
7.930e-02 |
X-ray |
|
4.60801e-02 |
1.417e-01 |
X-ray |
|
5.20302e-02 |
1.459e-02 |
X-ray |
|
5.21989e-02 |
2.820e-02 |
X-ray |
|
7.33700e-02 |
8.190e-02 |
Gamma |
|
1.23220e-01 |
1.470e-02 |
Gamma |
|
1.48760e-01 |
3.885e-02 |
Gamma |
|
1.68860e-01 |
2.520e-01 |
Gamma |
|
2.06800e-01 |
1.659e-02 |
Gamma |
|
2.11090e-01 |
6.090e-02 |
Gamma |
|
2.15070e-01 |
2.100e-01 |
Gamma |
|
2.59090e-01 |
4.200e-02 |
Gamma |
|
2.77470e-01 |
8.400e-02 |
Gamma |
|
2.94650e-01 |
7.035e-02 |
Gamma |
|
3.09080e-01 |
1.785e-02 |
Gamma |
|
3.44800e-01 |
5.250e-02 |
Gamma |
|
4.10340e-01 |
6.090e-02 |
Gamma |
|
5.08000e-01 |
1.365e-02 |
Gamma |
|
5.48540e-01 |
8.400e-02 |
Gamma |
|
5.63800e-01 |
2.520e-02 |
Gamma |
|
5.85900e-01 |
4.137e-02 |
Gamma |
|
6.10890e-01 |
1.995e-01 |
Gamma |
|
6.17820e-01 |
1.197e-01 |
Gamma |
|
6.47300e-01 |
3.045e-02 |
Gamma |
|
6.47300e-01 |
3.045e-02 |
Gamma |
|
6.73670e-01 |
9.240e-02 |
Gamma |
|
6.88460e-01 |
2.100e-01 |
Gamma |
|
7.54770e-01 |
2.310e-01 |
Gamma |
|
7.61710e-01 |
1.701e-01 |
Gamma |
|
7.79000e-01 |
1.365e-02 |
Gamma |
|
7.82620e-01 |
5.670e-02 |
Gamma |
|
7.90300e-01 |
1.764e-02 |
Gamma |
|
8.07000e-01 |
2.100e-02 |
Gamma |
|
8.10000e-01 |
1.197e-02 |
Gamma |
|
8.10000e-01 |
1.197e-02 |
Gamma |
|
8.10000e-01 |
1.197e-02 |
Gamma |
|
8.43000e-01 |
3.150e-02 |
Gamma |
|
8.45000e-01 |
3.570e-02 |
Gamma |
|
9.66000e-01 |
1.470e-02 |
Gamma |
|
1.10430e+00 |
1.155e-02 |
Gamma |
|
1.12340e+00 |
1.470e-02 |
Gamma |
|
1.14850e+00 |
1.806e-02 |
Gamma |
|
1.15480e+00 |
1.092e-02 |
Gamma |
|
1.16620e+00 |
1.995e-02 |
Gamma |
|
1.16940e+00 |
1.260e-02 |
Gamma |
|
1.16940e+00 |
1.155e-02 |
Gamma |
|
1.27820e+00 |
2.352e-02 |
Gamma |
|
1.28980e+00 |
1.680e-02 |
Gamma |
|
1.28980e+00 |
4.200e-02 |
Gamma |
|
1.32010e+00 |
1.050e-02 |
Gamma |
|
1.36600e+00 |
1.953e-02 |
Gamma |
|
1.37750e+00 |
5.250e-02 |
Gamma |
|
1.44390e+00 |
8.400e-02 |
Gamma |
|
2.51100e+00 |
1.365e-02 |
Gamma |
|
2.51100e+00 |
1.365e-02 |
Gamma |
|
2.89171e-01 |
5.714e-02 |
Beta |
|
3.93107e-01 |
1.143e-02 |
Beta |
|
5.77002e-01 |
1.714e-02 |
Beta |
|
6.04767e-01 |
2.204e-02 |
Beta |
|
6.22842e-01 |
2.661e-01 |
Beta |
|
6.27581e-01 |
9.224e-02 |
Beta |
|
6.36891e-01 |
3.265e-02 |
Beta |
|
6.43552e-01 |
3.265e-02 |
Beta |
|
7.12714e-01 |
5.469e-02 |
Beta |
|
7.32674e-01 |
2.857e-02 |
Beta |
|
7.41659e-01 |
7.102e-02 |
Beta |
|
8.13119e-01 |
1.306e-02 |
Beta |
|
8.50226e-01 |
2.122e-02 |
Beta |
|
8.85190e-01 |
3.755e-02 |
Beta |
|
8.94012e-01 |
5.061e-02 |
Beta |
|
9.71688e-01 |
2.122e-02 |
Beta |
|
1.05650e+00 |
2.204e-02 |
Beta |
|
1.10260e+00 |
1.633e-02 |
Beta |
|
1.12061e+00 |
3.918e-02 |
Beta |
|
1.15262e+00 |
2.612e-02 |
Beta |
|
1.50283e+00 |
4.245e-02 |
Beta |
|
1.81686e-05 |
4.083e-01 |
Auger electron |
|
1.28585e-04 |
3.406e+00 |
Auger electron |
|
1.52987e-04 |
1.679e-01 |
Auger electron |
|
2.11488e-04 |
5.435e-01 |
Auger electron |
|
6.24473e-04 |
7.696e-02 |
Auger electron |
|
1.01701e-03 |
1.205e+00 |
Auger electron |
|
1.19176e-03 |
6.543e-02 |
Auger electron |
|
5.12568e-03 |
4.242e-01 |
Auger electron |
|
6.38591e-03 |
1.493e-01 |
Auger electron |
|
7.67909e-03 |
1.322e-02 |
Auger electron |
|
1.95090e-02 |
1.741e-01 |
Conversion electron |
|
2.86875e-02 |
1.012e-02 |
Conversion electron |
|
3.70640e-02 |
1.128e-02 |
Auger electron |
|
6.43575e-02 |
1.637e-02 |
Conversion electron |
|
6.47793e-02 |
2.002e-01 |
Conversion electron |
|
6.55890e-02 |
2.165e-01 |
Conversion electron |
|
7.17079e-02 |
1.045e-01 |
Conversion electron |
|
7.33700e-02 |
2.728e-02 |
Conversion electron |
|
1.14999e-01 |
6.570e-02 |
Conversion electron |
|
1.57229e-01 |
1.076e-02 |
Conversion electron |
|
1.60269e-01 |
1.318e-02 |
Conversion electron |
|
1.61079e-01 |
1.105e-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
