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Radionuclide Dosimetric Data Sheets

Platinum-191

Isotope:  Pt-191
Atomic number (Z):  78
Mass number (A):  191
Neutron number (N):  113

Decay modes:  Electron capture
Half-life:  2.802 [d]
Decay constant:  2.8631e-06 [1/s]
Daughters:  Ir-191 (100.0%)
Radioactive daughters:  None

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.07485 [MeV]
Mean photon energy:  0.29602 [MeV]
Air kerma rate constant, Γ₁₀:  2.309e-17 [Gy·m²/Bq·s]
Air kerma coefficient, K_air:  2.309e-17 [Gy·m²/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δ_wp:  1.199e-14 [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-:  1.199e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δ_p:  4.743e-14 [Gy·kg/Bq·s]

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/Pt-191 Summary 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/Pt-191 Summary Spectrum.csv

 

Energy [MeV]	Yield [#/nt] if > 0.01	Radiation type
4.54703e-05	1.526e+01	X-ray
1.99417e-03	7.202e-02	X-ray
8.06830e-03	1.463e-02	X-ray
9.09081e-03	2.527e-02	X-ray
9.16923e-03	2.228e-01	X-ray
1.07358e-02	1.480e-01	X-ray
1.09194e-02	4.079e-02	X-ray
1.25485e-02	2.854e-02	X-ray
6.34550e-02	3.935e-01	X-ray
6.50999e-02	6.749e-01	X-ray
7.34138e-02	7.361e-02	X-ray
7.37750e-02	1.423e-01	X-ray
7.57436e-02	1.705e-02	X-ray
7.58295e-02	3.321e-02	X-ray
8.23980e-02	4.880e-02	Gamma
9.65170e-02	3.280e-02	Gamma
1.29400e-01	3.200e-02	Gamma
1.72190e-01	3.520e-02	Gamma
1.78960e-01	1.016e-02	Gamma
2.68710e-01	1.648e-02	Gamma
3.51170e-01	3.360e-02	Gamma
3.59880e-01	6.000e-02	Gamma
4.09440e-01	8.000e-02	Gamma
4.56470e-01	3.360e-02	Gamma
5.38870e-01	1.368e-01	Gamma
6.24060e-01	1.408e-02	Gamma
3.53964e-05	2.903e+00	Auger electron
1.71053e-04	5.031e+00	Auger electron
3.49876e-04	1.009e+00	Auger electron
3.59508e-04	2.221e-01	Auger electron
6.85204e-04	2.926e-01	Auger electron
1.64316e-03	2.439e+00	Auger electron
1.84372e-03	2.153e-01	Auger electron
2.15054e-03	1.069e-02	Auger electron
6.08400e-03	2.719e-01	Conversion electron
7.07602e-03	7.491e-01	Auger electron
9.04940e-03	3.037e-01	Auger electron
1.10514e-02	3.016e-02	Auger electron
2.02030e-02	1.893e-01	Conversion electron
5.13520e-02	3.776e-02	Auger electron
5.30860e-02	7.208e-02	Conversion electron
6.15157e-02	2.012e-02	Auger electron
6.90020e-02	4.110e-02	Conversion electron
6.95390e-02	8.402e-02	Conversion electron
7.11840e-02	7.415e-02	Conversion electron
7.98590e-02	5.032e-02	Conversion electron
8.23980e-02	1.465e-02	Conversion electron
8.31210e-02	2.815e-02	Conversion electron
9.58760e-02	3.958e-02	Conversion electron
1.16004e-01	1.063e-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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