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Radionuclide Dosimetric Data Sheets

Tin-108

Isotope:  Sn-108
Atomic number (Z):  50
Mass number (A):  108
Neutron number (N):  58

Decay modes:  β+, Electron capture
Half-life:  10.3 [m]
Decay constant:  1.1216e-03 [1/s]
Daughters:  In-108m (100.0%)
Radioactive daughters:  In-108m

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.02693 [MeV]
Mean photon energy:  0.68472 [MeV]
Air kerma rate constant, Γ₁₀:  3.154e-17 [Gy·m²/Bq·s]
Air kerma coefficient, K_air:  3.178e-17 [Gy·m²/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δ_wp:  4.315e-15 [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-:  4.315e-15 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δ_p:  1.097e-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/Sn-108 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/Sn-108 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/Sn-108 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/Sn-108 Summary Spectrum.csv

 

Energy [MeV]	Yield [#/nt] if > 0.01	Radiation type
8.12536e-06	1.647e+01	X-ray
3.27540e-03	3.338e-02	X-ray
3.48147e-03	1.899e-02	X-ray
2.39785e-02	2.425e-01	X-ray
2.41926e-02	4.549e-01	X-ray
2.72214e-02	4.059e-02	X-ray
2.72603e-02	7.881e-02	X-ray
2.78371e-02	1.613e-02	X-ray
1.04310e-01	1.382e-01	Gamma
1.68240e-01	1.993e-01	Gamma
2.36190e-01	6.237e-02	Gamma
2.72690e-01	4.552e-01	Gamma
3.96340e-01	6.430e-01	Gamma
4.92650e-01	1.029e-02	Gamma
5.00400e-01	1.093e-02	Gamma
5.11000e-01	1.279e-02	Annihilation photon
6.69160e-01	2.257e-01	Gamma
8.89160e-01	3.279e-02	Gamma
8.85871e-06	8.167e+00	Auger electron
3.35297e-05	2.870e+00	Auger electron
1.25768e-04	8.937e-01	Auger electron
2.61568e-04	1.552e-01	Auger electron
3.70818e-04	2.023e+00	Auger electron
4.36801e-04	3.325e-02	Auger electron
2.73383e-03	8.015e-01	Auger electron
3.21402e-03	1.959e-01	Auger electron
3.71288e-03	1.248e-02	Auger electron
8.77900e-03	3.324e-02	Conversion electron
2.00957e-02	9.909e-02	Auger electron
2.34091e-02	4.148e-02	Auger electron
3.29716e-02	1.105e-02	Conversion electron
7.63890e-02	5.538e-02	Conversion electron
1.40319e-01	2.114e-02	Conversion electron
2.44769e-01	1.349e-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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