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Radionuclide Dosimetric Data Sheets

Promethium-152m

Summary data

General

Classification

Isotope:  Pm-152m
Atomic number (Z):  61
Mass number (A):  152
Neutron number (N):  91

Radioactive decay

Decay modes:  β-
Half-life:  7.52 [m]
Decay constant:  1.5362e-03 [1/s]
Daughters:  Sm-152 (100.0%)
Radioactive daughters:  None

Dosimetric constants

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.90552 [MeV]
Mean photon energy:  1.51888 [MeV]
Air kerma rate constant, Γ10:  5.324e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair:  5.324e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δwp:  1.451e-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-:  1.451e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp:  2.434e-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-152m 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-152m 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-152m 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-152m Summary Spectrum.csv

 

Energy [MeV]

Yield [#/nt] if > 0.01

Radiation type

1.45296e-05

5.916e+00

X-ray

5.62210e-03

3.466e-02

X-ray

6.20531e-03

2.551e-02

X-ray

3.95578e-02

1.017e-01

X-ray

4.01680e-02

1.841e-01

X-ray

4.53441e-02

1.845e-02

X-ray

4.54683e-02

3.570e-02

X-ray

1.21800e-01

4.506e-01

Gamma

2.44700e-01

7.835e-01

Gamma

3.40400e-01

3.128e-01

Gamma

4.32100e-01

1.636e-02

Gamma

6.56200e-01

3.530e-02

Gamma

6.88300e-01

2.267e-02

Gamma

7.80800e-01

4.219e-02

Gamma

8.10200e-01

4.248e-02

Gamma

8.67200e-01

1.234e-02

Gamma

9.01100e-01

1.808e-02

Gamma

9.19200e-01

1.291e-02

Gamma

9.64200e-01

1.693e-02

Gamma

1.00510e+00

2.899e-02

Gamma

1.02140e+00

1.177e-02

Gamma

1.08580e+00

1.263e-02

Gamma

1.09710e+00

2.870e-01

Gamma

1.11210e+00

4.047e-02

Gamma

1.21290e+00

1.005e-02

Gamma

1.23420e+00

2.870e-02

Gamma

1.43750e+00

2.267e-01

Gamma

2.42787e-01

1.006e-02

Beta

4.74227e-01

1.224e-02

Beta

5.92021e-01

7.971e-02

Beta

6.96746e-01

5.409e-01

Beta

7.96094e-01

1.281e-02

Beta

8.88922e-01

1.898e-02

Beta

1.00413e+00

1.613e-02

Beta

1.03817e+00

1.528e-02

Beta

1.17276e+00

4.745e-02

Beta

1.34624e+00

1.708e-01

Beta

1.51033e-05

4.608e-01

Auger electron

9.36771e-05

3.815e-01

Auger electron

1.06790e-04

2.468e+00

Auger electron

1.70186e-04

3.895e-01

Auger electron

4.82764e-04

6.162e-02

Auger electron

8.03395e-04

8.593e-01

Auger electron

9.72404e-04

5.489e-02

Auger electron

4.45414e-03

3.181e-01

Auger electron

5.50242e-03

1.087e-01

Auger electron

3.25196e-02

1.756e-02

Auger electron

7.49240e-02

3.047e-01

Conversion electron

1.14098e-01

2.877e-02

Conversion electron

1.14482e-01

7.132e-02

Conversion electron

1.15092e-01

7.044e-02

Conversion electron

1.20392e-01

3.943e-02

Conversion electron

1.21800e-01

1.030e-02

Conversion electron

1.97824e-01

6.340e-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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