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Radionuclide Dosimetric Data Sheets

Terbium-163

Summary data

General

Classification

Isotope:  Tb-163
Atomic number (Z):  65
Mass number (A):  163
Neutron number (N):  98

Radioactive decay

Decay modes:  β-
Half-life:  19.5 [m]
Decay constant:  5.9243e-04 [1/s]
Daughters:  Dy-163 (100.0%)
Radioactive daughters:  None

Dosimetric constants

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.35968 [MeV]
Mean photon energy:  0.78873 [MeV]
Air kerma rate constant, Γ10:  2.969e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair:  2.969e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δwp:  5.763e-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-:  5.763e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp:  1.264e-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-163 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-163 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-163 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-163 Summary Spectrum.csv

 

Energy [MeV]

Yield [#/nt] if > 0.01

Radiation type

1.36963e-05

2.016e+00

X-ray

6.48150e-03

1.598e-02

X-ray

7.25411e-03

1.310e-02

X-ray

4.52703e-02

2.830e-02

X-ray

4.60801e-02

5.058e-02

X-ray

5.21989e-02

1.006e-02

X-ray

7.34000e-02

2.025e-02

Gamma

2.50800e-01

6.728e-02

Gamma

3.16400e-01

8.325e-02

Gamma

3.38500e-01

4.523e-02

Gamma

3.47800e-01

6.165e-02

Gamma

3.51200e-01

2.632e-01

Gamma

3.54300e-01

4.635e-02

Gamma

3.86300e-01

4.523e-02

Gamma

3.89800e-01

2.430e-01

Gamma

4.01900e-01

2.498e-02

Gamma

4.15000e-01

5.378e-02

Gamma

4.21900e-01

1.148e-01

Gamma

4.27600e-01

3.510e-02

Gamma

4.34800e-01

1.418e-02

Gamma

4.59800e-01

1.148e-02

Gamma

4.62400e-01

2.205e-02

Gamma

4.75400e-01

2.948e-02

Gamma

4.86700e-01

1.103e-02

Gamma

4.94500e-01

2.250e-01

Gamma

5.07500e-01

4.612e-02

Gamma

5.33000e-01

9.450e-02

Gamma

5.45300e-01

1.688e-02

Gamma

5.59500e-01

2.048e-02

Gamma

5.83900e-01

7.020e-02

Gamma

6.08300e-01

3.690e-02

Gamma

6.30100e-01

1.125e-02

Gamma

8.33400e-01

1.013e-02

Gamma

2.22844e-01

1.560e-02

Beta

2.32306e-01

1.365e-02

Beta

2.73739e-01

4.387e-02

Beta

2.79208e-01

1.501e-01

Beta

2.86708e-01

1.560e-02

Beta

2.98904e-01

3.392e-01

Beta

3.08710e-01

4.387e-02

Beta

3.45414e-01

1.121e-01

Beta

3.56883e-01

1.111e-01

Beta

4.64001e-01

3.802e-02

Beta

4.83904e-01

1.462e-02

Beta

4.86305e-01

8.871e-02

Beta

1.81686e-05

1.105e-01

Auger electron

1.28585e-04

9.199e-01

Auger electron

1.53346e-04

4.531e-02

Auger electron

2.11070e-04

1.468e-01

Auger electron

6.32237e-04

2.219e-02

Auger electron

1.01693e-03

3.249e-01

Auger electron

1.19175e-03

1.764e-02

Auger electron

5.12334e-03

1.148e-01

Auger electron

6.38389e-03

4.037e-02

Auger electron

1.95390e-02

5.518e-02

Conversion electron

6.48093e-02

3.960e-02

Conversion electron

6.56190e-02

4.261e-02

Conversion electron

7.17379e-02

2.123e-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

 

 

 

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