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Radionuclide Dosimetric Data Sheets
Terbium-160
Summary data
General
Classification
Isotope: Tb-160
Atomic number (Z): 65
Mass number (A): 160
Neutron number (N): 95
Radioactive decay
Decay modes: β-
Half-life: 72.3 [d]
Decay constant: 1.1096e-07 [1/s]
Daughters: Dy-160 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.25925 [MeV]
Mean photon energy: 1.12635 [MeV]
Air kerma rate constant, Γ10: 4.018e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 4.018e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 4.154e-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-:
4.154e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 1.805e-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/Tb-160 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/Tb-160 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-160 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-160 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.36914e-05 |
5.157e+00 |
X-ray |
|
1.22853e-03 |
1.006e-02 |
X-ray |
|
6.48150e-03 |
4.074e-02 |
X-ray |
|
7.25410e-03 |
3.528e-02 |
X-ray |
|
4.52703e-02 |
5.967e-02 |
X-ray |
|
4.60801e-02 |
1.066e-01 |
X-ray |
|
5.20302e-02 |
1.098e-02 |
X-ray |
|
5.21989e-02 |
2.122e-02 |
X-ray |
|
8.67882e-02 |
1.315e-01 |
Gamma |
|
1.97035e-01 |
5.183e-02 |
Gamma |
|
2.15646e-01 |
4.018e-02 |
Gamma |
|
2.98580e-01 |
2.613e-01 |
Gamma |
|
3.92514e-01 |
1.336e-02 |
Gamma |
|
7.65280e-01 |
2.140e-02 |
Gamma |
|
8.79383e-01 |
3.010e-01 |
Gamma |
|
9.62317e-01 |
9.813e-02 |
Gamma |
|
9.66171e-01 |
2.510e-01 |
Gamma |
|
1.00288e+00 |
1.038e-02 |
Gamma |
|
1.11512e+00 |
1.565e-02 |
Gamma |
|
1.17796e+00 |
1.487e-01 |
Gamma |
|
1.19989e+00 |
2.384e-02 |
Gamma |
|
1.27188e+00 |
7.444e-02 |
Gamma |
|
1.31214e+00 |
2.863e-02 |
Gamma |
|
1.29208e-01 |
4.471e-02 |
Beta |
|
1.33422e-01 |
1.014e-02 |
Beta |
|
1.42864e-01 |
9.913e-02 |
Beta |
|
1.67852e-01 |
3.431e-02 |
Beta |
|
1.75609e-01 |
4.541e-01 |
Beta |
|
2.54877e-01 |
6.492e-02 |
Beta |
|
2.86635e-01 |
2.801e-01 |
Beta |
|
1.81686e-05 |
2.817e-01 |
Auger electron |
|
1.28597e-04 |
2.353e+00 |
Auger electron |
|
1.52684e-04 |
1.159e-01 |
Auger electron |
|
2.11460e-04 |
3.740e-01 |
Auger electron |
|
6.18271e-04 |
4.994e-02 |
Auger electron |
|
1.01686e-03 |
8.354e-01 |
Auger electron |
|
1.19130e-03 |
4.532e-02 |
Auger electron |
|
5.12249e-03 |
2.942e-01 |
Auger electron |
|
6.38222e-03 |
1.035e-01 |
Auger electron |
|
3.29272e-02 |
2.037e-01 |
Conversion electron |
|
7.77757e-02 |
1.865e-02 |
Conversion electron |
|
7.81975e-02 |
1.460e-01 |
Conversion electron |
|
7.90072e-02 |
1.512e-01 |
Conversion electron |
|
8.51261e-02 |
7.596e-02 |
Conversion electron |
|
8.67882e-02 |
1.989e-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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