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Radionuclide Dosimetric Data Sheets

Terbium-162

Isotope:  Tb-162
Atomic number (Z):  65
Mass number (A):  162
Neutron number (N):  97

Decay modes:  β-
Half-life:  7.6 [m]
Decay constant:  1.5201e-03 [1/s]
Daughters:  Dy-162 (100.0%)
Radioactive daughters:  None

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.5327 [MeV]
Mean photon energy:  1.10658 [MeV]
Air kerma rate constant, Γ₁₀:  4.028e-17 [Gy·m²/Bq·s]
Air kerma coefficient, K_air:  4.028e-17 [Gy·m²/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δ_wp:  8.535e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for alphas, Δ_α:  0.000e+00 [Gy·kg/Bq·s]
Equilibrium dose constant for betas/electrons, Δ_β-,β+,e-:  8.535e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δ_p:  1.773e-13 [Gy·kg/Bq·s]

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-162 DPK.csv

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-162 Summary Spectrum.csv

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-162 Beta Spectrum.csv

 

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-162 Summary Spectrum.csv

 

Energy [MeV]	Yield [#/nt] if > 0.01	Radiation type
1.36909e-05	4.633e+00	X-ray
6.48150e-03	3.662e-02	X-ray
7.25410e-03	3.170e-02	X-ray
4.52703e-02	5.036e-02	X-ray
4.60801e-02	9.001e-02	X-ray
5.21989e-02	1.791e-02	X-ray
8.06600e-02	8.646e-02	Gamma
1.84980e-01	2.696e-02	Gamma
1.85270e-01	1.442e-01	Gamma
2.60050e-01	8.004e-01	Gamma
6.97350e-01	2.581e-02	Gamma
8.07530e-01	4.280e-01	Gamma
8.82320e-01	1.344e-01	Gamma
8.88200e-01	3.869e-01	Gamma
4.85741e-01	9.773e-01	Beta
1.81686e-05	2.530e-01	Auger electron
1.28598e-04	2.114e+00	Auger electron
1.52653e-04	1.042e-01	Auger electron
2.11470e-04	3.361e-01	Auger electron
6.17482e-04	4.445e-02	Auger electron
1.01686e-03	7.507e-01	Auger electron
1.19130e-03	4.073e-02	Auger electron
5.12190e-03	2.642e-01	Auger electron
6.38155e-03	9.293e-02	Auger electron
2.67990e-02	1.531e-01	Conversion electron
7.16475e-02	1.431e-02	Conversion electron
7.20693e-02	1.352e-01	Conversion electron
7.28790e-02	1.428e-01	Conversion electron
7.89979e-02	7.045e-02	Conversion electron
8.06600e-02	1.842e-02	Conversion electron
2.06189e-01	1.679e-02	Conversion electron

 

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

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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