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Radionuclide Dosimetric Data Sheets
Platinum-197
Summary data
General
Classification
Isotope: Pt-197
Atomic number (Z): 78
Mass number (A): 197
Neutron number (N): 119
Radioactive decay
Decay modes: β-
Half-life: 19.89 [h]
Decay constant: 9.6796e-06 [1/s]
Daughters: Au-197 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.25522 [MeV]
Mean photon energy: 0.02563 [MeV]
Air kerma rate constant, Γ10: 5.419e-18 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 5.419e-18 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 4.089e-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-:
4.089e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 4.106e-15
[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/Pt-197 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/Pt-197 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/Pt-197 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/Pt-197 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.11037e-05 |
1.108e+01 |
X-ray |
|
2.14687e-03 |
3.330e-02 |
X-ray |
|
9.70979e-03 |
8.179e-02 |
X-ray |
|
1.14753e-02 |
5.048e-02 |
X-ray |
|
1.15869e-02 |
1.528e-02 |
X-ray |
|
6.71839e-02 |
1.008e-02 |
X-ray |
|
6.90380e-02 |
1.716e-02 |
X-ray |
|
7.73500e-02 |
1.702e-01 |
Gamma |
|
1.91437e-01 |
3.660e-02 |
Gamma |
|
1.32068e-01 |
8.200e-02 |
Beta |
|
1.97580e-01 |
8.120e-01 |
Beta |
|
2.25219e-01 |
1.060e-01 |
Beta |
|
4.01567e-05 |
2.447e+00 |
Auger electron |
|
6.45599e-05 |
3.730e+00 |
Auger electron |
|
1.74727e-04 |
1.967e+00 |
Auger electron |
|
4.20549e-04 |
4.008e-01 |
Auger electron |
|
6.54342e-04 |
2.642e-01 |
Auger electron |
|
1.75469e-03 |
9.753e-01 |
Auger electron |
|
1.97557e-03 |
1.007e-01 |
Auger electron |
|
7.55374e-03 |
2.622e-01 |
Auger electron |
|
9.69461e-03 |
1.105e-01 |
Auger electron |
|
1.18727e-02 |
1.131e-02 |
Auger electron |
|
6.30140e-02 |
3.072e-01 |
Conversion electron |
|
6.35740e-02 |
1.411e-01 |
Conversion electron |
|
6.54280e-02 |
1.048e-01 |
Conversion electron |
|
7.46160e-02 |
1.349e-01 |
Conversion electron |
|
7.73500e-02 |
4.097e-02 |
Conversion electron |
|
1.10477e-01 |
3.579e-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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