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Radionuclide Dosimetric Data Sheets
Tellurium-115
Summary data
General
Classification
Isotope: Te-115
Atomic number (Z): 52
Mass number (A): 115
Neutron number (N): 63
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 5.8 [m]
Decay constant: 1.9918e-03 [1/s]
Daughters: Sb-115 (100.0%)
Radioactive daughters: Sb-115
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.81236 [MeV]
Mean photon energy: 2.24486 [MeV]
Air kerma rate constant, Γ10: 5.525e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 8.110e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.302e-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-:
1.302e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 3.597e-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-115 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-115 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-115 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-115 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.22327e-05 |
4.609e+00 |
X-ray |
|
3.59266e-03 |
1.115e-02 |
X-ray |
|
2.60930e-02 |
7.477e-02 |
X-ray |
|
2.63486e-02 |
1.395e-01 |
X-ray |
|
2.96698e-02 |
1.272e-02 |
X-ray |
|
2.97173e-02 |
2.468e-02 |
X-ray |
|
2.28220e-01 |
1.299e-01 |
Gamma |
|
2.81960e-01 |
4.820e-02 |
Gamma |
|
3.74480e-01 |
3.168e-02 |
Gamma |
|
4.28220e-01 |
1.088e-02 |
Gamma |
|
5.11000e-01 |
1.335e+00 |
Annihilation photon |
|
5.68390e-01 |
2.784e-02 |
Gamma |
|
6.03270e-01 |
4.416e-02 |
Gamma |
|
6.57010e-01 |
6.816e-02 |
Gamma |
|
7.23570e-01 |
3.008e-01 |
Gamma |
|
9.42870e-01 |
1.824e-02 |
Gamma |
|
9.96610e-01 |
1.120e-02 |
Gamma |
|
1.01230e+00 |
1.664e-02 |
Gamma |
|
1.09862e+00 |
1.632e-01 |
Gamma |
|
1.29050e+00 |
5.888e-02 |
Gamma |
|
1.30030e+00 |
2.432e-02 |
Gamma |
|
1.32684e+00 |
2.272e-01 |
Gamma |
|
1.38058e+00 |
2.304e-01 |
Gamma |
|
1.59990e+00 |
2.624e-02 |
Gamma |
|
6.83656e-01 |
3.403e-02 |
Positron |
|
7.13193e-01 |
4.004e-02 |
Positron |
|
1.14372e+00 |
1.802e-01 |
Positron |
|
1.16857e+00 |
1.802e-01 |
Positron |
|
1.27453e+00 |
6.006e-02 |
Positron |
|
1.44963e+00 |
1.301e-01 |
Positron |
|
1.79062e+00 |
3.604e-02 |
Positron |
|
1.68960e-05 |
2.269e+00 |
Auger electron |
|
2.73587e-05 |
7.657e-01 |
Auger electron |
|
1.22016e-04 |
2.564e-01 |
Auger electron |
|
2.83266e-04 |
4.640e-02 |
Auger electron |
|
4.22541e-04 |
5.746e-01 |
Auger electron |
|
5.04922e-04 |
1.740e-02 |
Auger electron |
|
2.96507e-03 |
2.262e-01 |
Auger electron |
|
3.51987e-03 |
6.121e-02 |
Auger electron |
|
2.17904e-02 |
2.607e-02 |
Auger electron |
|
2.54497e-02 |
1.129e-02 |
Auger 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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