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Radionuclide Dosimetric Data Sheets

Promethium-150

Isotope:  Pm-150
Atomic number (Z):  61
Mass number (A):  150
Neutron number (N):  89

Decay modes:  β-
Half-life:  2.68 [h]
Decay constant:  7.1844e-05 [1/s]
Daughters:  Sm-150 (100.0%)
Radioactive daughters:  None

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.8101 [MeV]
Mean photon energy:  1.47046 [MeV]
Air kerma rate constant, Γ₁₀:  5.079e-17 [Gy·m²/Bq·s]
Air kerma coefficient, K_air:  5.079e-17 [Gy·m²/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δ_wp:  1.298e-13 [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-:  1.298e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δ_p:  2.356e-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/Pm-150 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/Pm-150 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/Pm-150 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/Pm-150 Summary Spectrum.csv

 

Energy [MeV]	Yield [#/nt] if > 0.01	Radiation type
1.45276e-05	3.046e-01	X-ray
4.01680e-02	1.205e-02	X-ray
3.33920e-01	6.800e-01	Gamma
4.06510e-01	5.576e-02	Gamma
5.65700e-01	1.312e-02	Gamma
5.87020e-01	1.340e-02	Gamma
7.12220e-01	4.352e-02	Gamma
7.37500e-01	2.251e-02	Gamma
8.31850e-01	1.190e-01	Gamma
8.59950e-01	3.400e-02	Gamma
8.76410e-01	7.276e-02	Gamma
1.16577e+00	1.584e-01	Gamma
1.17090e+00	1.061e-02	Gamma
1.19387e+00	4.828e-02	Gamma
1.21372e+00	1.034e-02	Gamma
1.22328e+00	2.829e-02	Gamma
1.32451e+00	1.748e-01	Gamma
1.37932e+00	3.148e-02	Gamma
1.73640e+00	6.936e-02	Gamma
1.96371e+00	1.469e-02	Gamma
2.02069e-01	1.141e-02	Beta
4.19335e-01	3.138e-02	Beta
4.98739e-01	1.693e-01	Beta
5.44075e-01	5.421e-02	Beta
6.52394e-01	3.329e-02	Beta
6.76394e-01	1.874e-01	Beta
8.95213e-01	2.511e-01	Beta
9.49041e-01	1.141e-02	Beta
1.08752e+00	1.331e-02	Beta
1.27314e+00	9.320e-02	Beta
1.42654e+00	9.510e-02	Beta
1.51033e-05	2.379e-02	Auger electron
9.39945e-05	1.955e-02	Auger electron
1.06748e-04	1.272e-01	Auger electron
1.69377e-04	2.016e-02	Auger electron
8.03528e-04	4.395e-02	Auger electron
4.45563e-03	1.636e-02	Auger electron
2.87044e-01	2.182e-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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