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Radionuclide Dosimetric Data Sheets
Tellurium-133m
Summary data
General
Classification
Isotope: Te-133m
Atomic number (Z): 52
Mass number (A): 133
Neutron number (N): 81
Radioactive decay
Decay modes: β-, Internal transition
Half-life: 55.4 [m]
Decay constant: 2.0853e-04 [1/s]
Daughters: I-133 (82.5%), Te-133 (17.5%)
Radioactive daughters: I-133, Te-133
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.38795 [MeV]
Mean photon energy: 1.8597 [MeV]
Air kerma rate constant, Γ10: 6.693e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 6.693e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 6.216e-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-:
6.216e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 2.980e-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/Te-133m 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/Te-133m 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/Te-133m 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/Te-133m Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.36107e-05 |
1.313e+00 |
X-ray |
|
1.52654e-05 |
2.849e+00 |
X-ray |
|
2.71868e-02 |
2.007e-02 |
X-ray |
|
2.74652e-02 |
3.736e-02 |
X-ray |
|
2.83065e-02 |
4.179e-02 |
X-ray |
|
2.86096e-02 |
7.757e-02 |
X-ray |
|
3.22942e-02 |
1.399e-02 |
X-ray |
|
8.80640e-02 |
1.327e-02 |
Gamma |
|
9.49890e-02 |
2.874e-02 |
Gamma |
|
1.69025e-01 |
5.251e-02 |
Gamma |
|
2.13480e-01 |
2.156e-02 |
Gamma |
|
2.61626e-01 |
7.849e-02 |
Gamma |
|
3.12072e-01 |
2.211e-02 |
Gamma |
|
3.34245e-01 |
3.317e-02 |
Gamma |
|
3.34270e-01 |
7.175e-02 |
Gamma |
|
4.29030e-01 |
2.211e-02 |
Gamma |
|
4.35280e-01 |
1.216e-02 |
Gamma |
|
4.44940e-01 |
2.045e-02 |
Gamma |
|
4.62230e-01 |
1.548e-02 |
Gamma |
|
5.34880e-01 |
1.050e-02 |
Gamma |
|
5.74110e-01 |
1.216e-02 |
Gamma |
|
6.05110e-01 |
1.271e-02 |
Gamma |
|
6.47510e-01 |
1.940e-01 |
Gamma |
|
7.02910e-01 |
2.432e-02 |
Gamma |
|
7.34000e-01 |
1.769e-02 |
Gamma |
|
7.79670e-01 |
1.769e-02 |
Gamma |
|
7.94700e-01 |
1.050e-02 |
Gamma |
|
8.00540e-01 |
1.106e-02 |
Gamma |
|
8.63955e-01 |
1.564e-01 |
Gamma |
|
8.82700e-01 |
2.211e-02 |
Gamma |
|
8.91400e-01 |
1.050e-02 |
Gamma |
|
9.12671e-01 |
5.527e-01 |
Gamma |
|
9.14774e-01 |
1.094e-01 |
Gamma |
|
9.78300e-01 |
4.864e-02 |
Gamma |
|
9.80260e-01 |
1.492e-02 |
Gamma |
|
1.02988e+00 |
1.216e-02 |
Gamma |
|
1.06189e+00 |
1.658e-02 |
Gamma |
|
1.14274e+00 |
1.327e-02 |
Gamma |
|
1.34887e+00 |
1.492e-02 |
Gamma |
|
1.51626e+00 |
1.271e-02 |
Gamma |
|
1.58766e+00 |
1.437e-02 |
Gamma |
|
1.68323e+00 |
4.146e-02 |
Gamma |
|
2.00533e+00 |
3.372e-02 |
Gamma |
|
2.04966e+00 |
1.216e-02 |
Gamma |
|
6.23769e-02 |
1.422e-02 |
Beta |
|
1.50735e-01 |
1.258e-02 |
Beta |
|
1.85894e-01 |
2.709e-02 |
Beta |
|
2.19504e-01 |
1.635e-01 |
Beta |
|
2.34564e-01 |
4.354e-02 |
Beta |
|
2.56193e-01 |
1.645e-02 |
Beta |
|
2.69018e-01 |
3.096e-02 |
Beta |
|
2.77835e-01 |
1.064e-02 |
Beta |
|
3.06990e-01 |
5.709e-02 |
Beta |
|
3.56919e-01 |
1.064e-02 |
Beta |
|
3.72013e-01 |
1.258e-02 |
Beta |
|
4.01180e-01 |
1.548e-02 |
Beta |
|
4.39959e-01 |
1.548e-02 |
Beta |
|
4.58742e-01 |
2.516e-02 |
Beta |
|
4.64851e-01 |
5.225e-02 |
Beta |
|
5.10001e-01 |
2.903e-02 |
Beta |
|
5.57232e-01 |
6.870e-02 |
Beta |
|
6.14217e-01 |
1.355e-02 |
Beta |
|
6.55408e-01 |
2.226e-02 |
Beta |
|
1.35393e+00 |
3.871e-02 |
Beta |
|
2.29248e-05 |
6.413e-01 |
Auger electron |
|
2.49246e-05 |
2.145e-01 |
Auger electron |
|
2.70473e-05 |
4.280e-01 |
Auger electron |
|
2.89565e-05 |
1.373e+00 |
Auger electron |
|
1.20973e-04 |
7.402e-02 |
Auger electron |
|
1.25199e-04 |
1.582e-01 |
Auger electron |
|
2.97929e-04 |
1.407e-02 |
Auger electron |
|
3.09386e-04 |
3.196e-02 |
Auger electron |
|
4.49579e-04 |
1.647e-01 |
Auger electron |
|
4.77161e-04 |
3.642e-01 |
Auger electron |
|
5.78959e-04 |
1.735e-02 |
Auger electron |
|
3.08613e-03 |
6.459e-02 |
Auger electron |
|
3.20938e-03 |
1.426e-01 |
Auger electron |
|
3.68046e-03 |
1.829e-02 |
Auger electron |
|
3.84456e-03 |
4.215e-02 |
Auger electron |
|
2.35598e-02 |
1.255e-02 |
Auger electron |
|
4.08860e-02 |
6.964e-02 |
Conversion electron |
|
5.49000e-02 |
1.471e-02 |
Conversion electron |
|
6.18250e-02 |
4.018e-02 |
Conversion electron |
|
6.88881e-02 |
1.214e-02 |
Conversion electron |
|
3.02465e-01 |
7.950e-02 |
Conversion electron |
|
3.29356e-01 |
1.264e-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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