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Radionuclide Dosimetric Data Sheets

Promethium-154

Summary data

General

Classification

Isotope:  Pm-154
Atomic number (Z):  61
Mass number (A):  154
Neutron number (N):  93

Radioactive decay

Decay modes:  β-
Half-life:  1.73 [m]
Decay constant:  6.6777e-03 [1/s]
Daughters:  Sm-154 (100.0%)
Radioactive daughters:  None

Dosimetric constants

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.87055 [MeV]
Mean photon energy:  1.79326 [MeV]
Air kerma rate constant, Γ10:  5.833e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair:  5.833e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δwp:  1.395e-13 [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-:  1.395e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp:  2.873e-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/Pm-154 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/Pm-154 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/Pm-154 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/Pm-154 Summary Spectrum.csv

 

Energy [MeV]

Yield [#/nt] if > 0.01

Radiation type

1.45299e-05

5.864e+00

X-ray

5.62210e-03

3.422e-02

X-ray

6.20530e-03

2.672e-02

X-ray

3.95578e-02

6.940e-02

X-ray

4.01680e-02

1.256e-01

X-ray

4.53440e-02

1.259e-02

X-ray

4.54683e-02

2.435e-02

X-ray

8.20160e-02

1.260e-01

Gamma

1.84810e-01

3.100e-02

Gamma

2.80960e-01

1.230e-02

Gamma

8.39360e-01

8.800e-02

Gamma

8.91280e-01

5.620e-02

Gamma

9.10930e-01

3.100e-02

Gamma

9.21360e-01

6.100e-02

Gamma

9.53970e-01

1.240e-02

Gamma

9.62000e-01

3.380e-02

Gamma

9.69790e-01

4.650e-02

Gamma

1.01721e+00

6.300e-02

Gamma

1.09584e+00

4.400e-02

Gamma

1.14769e+00

7.900e-02

Gamma

1.17775e+00

3.240e-02

Gamma

1.39358e+00

1.440e-01

Gamma

1.80817e+00

1.550e-02

Gamma

1.89000e+00

1.030e-02

Gamma

1.98704e+00

1.060e-02

Gamma

2.05776e+00

1.710e-01

Gamma

2.06904e+00

1.630e-02

Gamma

2.13976e+00

9.700e-02

Gamma

2.34648e+00

1.700e-02

Gamma

2.50927e+00

1.100e-02

Gamma

3.04010e-01

1.006e-02

Beta

4.81062e-01

1.232e-02

Beta

4.92336e-01

2.259e-02

Beta

5.61721e-01

1.745e-02

Beta

5.87425e-01

1.047e-02

Beta

6.87153e-01

3.388e-01

Beta

6.90661e-01

2.259e-02

Beta

7.18270e-01

2.228e-01

Beta

7.97535e-01

3.080e-02

Beta

9.83530e-01

1.478e-01

Beta

1.23574e+00

2.259e-02

Beta

1.62192e+00

4.107e-02

Beta

1.65980e+00

4.107e-02

Beta

1.51033e-05

4.557e-01

Auger electron

9.34272e-05

3.794e-01

Auger electron

1.06822e-04

2.444e+00

Auger electron

1.70790e-04

3.848e-01

Auger electron

4.65439e-04

5.322e-02

Auger electron

8.03303e-04

8.561e-01

Auger electron

9.71954e-04

5.464e-02

Auger electron

4.45187e-03

3.151e-01

Auger electron

5.49930e-03

1.077e-01

Auger electron

3.25196e-02

1.198e-02

Auger electron

3.51400e-02

2.494e-01

Conversion electron

7.43137e-02

2.204e-02

Conversion electron

7.46978e-02

1.260e-01

Conversion electron

7.53081e-02

1.390e-01

Conversion electron

8.06083e-02

6.686e-02

Conversion electron

8.20160e-02

1.739e-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

 

 

 

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