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Radionuclide Dosimetric Data Sheets
Iodine-130
Summary data
General
Classification
Isotope: I-130
Atomic number (Z): 53
Mass number (A): 130
Neutron number (N): 77
Radioactive decay
Decay modes: β-
Half-life: 12.36 [h]
Decay constant: 1.5578e-05 [1/s]
Daughters: Xe-130 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.27864 [MeV]
Mean photon energy: 2.13717 [MeV]
Air kerma rate constant, Γ10: 7.972e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 7.972e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 4.464e-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-:
4.464e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 3.424e-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/I-130 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/I-130 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/I-130 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/I-130 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.66175e-05 |
2.472e-01 |
X-ray |
|
4.17932e-01 |
3.416e-01 |
Gamma |
|
5.36066e-01 |
9.900e-01 |
Gamma |
|
5.39053e-01 |
1.396e-02 |
Gamma |
|
5.86049e-01 |
1.693e-02 |
Gamma |
|
6.68536e-01 |
9.603e-01 |
Gamma |
|
6.86060e-01 |
1.069e-02 |
Gamma |
|
7.39512e-01 |
8.217e-01 |
Gamma |
|
1.15743e+00 |
1.129e-01 |
Gamma |
|
1.84413e-01 |
4.651e-01 |
Beta |
|
2.56309e-01 |
2.131e-02 |
Beta |
|
3.46975e-01 |
4.780e-01 |
Beta |
|
4.03094e-01 |
1.424e-02 |
Beta |
|
2.61460e-05 |
3.848e-02 |
Auger electron |
|
3.62357e-05 |
1.176e-01 |
Auger electron |
|
1.23774e-04 |
1.444e-02 |
Auger electron |
|
5.05011e-04 |
3.232e-02 |
Auger electron |
|
3.32346e-03 |
1.274e-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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