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Radionuclide Dosimetric Data Sheets

Rhenium-182m

Summary data

General

Classification

Isotope:  Re-182m
Atomic number (Z):  75
Mass number (A):  182
Neutron number (N):  107

Radioactive decay

Decay modes:  β+, Electron capture
Half-life:  12.7 [h]
Decay constant:  1.5161e-05 [1/s]
Daughters:  W-182 (100.0%)
Radioactive daughters:  None

Dosimetric constants

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.09222 [MeV]
Mean photon energy:  1.22138 [MeV]
Air kerma rate constant, Γ10:  4.286e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair:  4.350e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δwp:  1.478e-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-:  1.478e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp:  1.957e-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/Re-182m 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/Re-182m 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/Re-182m 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/Re-182m Summary Spectrum.csv

 

Energy [MeV]

Yield [#/nt] if > 0.01

Radiation type

3.12713e-05

1.542e+01

X-ray

1.77687e-03

5.706e-02

X-ray

7.40949e-03

1.242e-02

X-ray

8.32493e-03

2.109e-02

X-ray

8.38982e-03

1.861e-01

X-ray

9.69189e-03

1.336e-01

X-ray

9.95867e-03

3.301e-02

X-ray

1.13129e-02

2.487e-02

X-ray

5.81161e-02

3.093e-01

X-ray

5.94830e-02

5.370e-01

X-ray

6.71212e-02

5.774e-02

X-ray

6.74178e-02

1.116e-01

X-ray

6.77500e-02

3.816e-01

Gamma

6.92004e-02

1.314e-02

X-ray

6.92695e-02

2.548e-02

X-ray

8.46800e-02

2.671e-02

Gamma

1.00120e-01

1.431e-01

Gamma

1.52430e-01

6.996e-02

Gamma

2.29320e-01

2.544e-02

Gamma

4.70260e-01

2.003e-02

Gamma

5.11000e-01

3.343e-02

Annihilation photon

8.94850e-01

2.099e-02

Gamma

1.12140e+00

3.180e-01

Gamma

1.18920e+00

1.504e-01

Gamma

1.22150e+00

2.480e-01

Gamma

1.23110e+00

1.307e-02

Gamma

1.25730e+00

1.396e-02

Gamma

1.28930e+00

1.224e-02

Gamma

7.88796e-01

1.563e-02

Positron

2.53646e-05

3.055e+00

Auger electron

1.61392e-04

5.242e+00

Auger electron

3.14461e-04

1.817e-01

Auger electron

3.18093e-04

1.020e+00

Auger electron

7.03938e-04

2.263e-01

Auger electron

1.47227e-03

2.435e+00

Auger electron

1.65765e-03

1.565e-01

Auger electron

6.52774e-03

7.653e-01

Auger electron

8.28409e-03

2.936e-01

Auger electron

1.00697e-02

2.808e-02

Auger electron

1.49910e-02

1.616e-01

Conversion electron

3.04310e-02

1.247e-01

Conversion electron

4.40110e-02

1.076e-02

Conversion electron

4.71853e-02

3.245e-02

Auger electron

5.56730e-02

3.744e-02

Conversion electron

5.61770e-02

1.383e-02

Conversion electron

5.63739e-02

1.701e-02

Auger electron

5.75440e-02

1.749e-02

Conversion electron

6.54788e-02

1.600e-02

Conversion electron

7.26030e-02

2.322e-02

Conversion electron

8.80430e-02

1.372e-02

Conversion electron

8.85470e-02

1.679e-01

Conversion electron

8.99140e-02

1.508e-01

Conversion electron

9.78488e-02

8.446e-02

Conversion electron

1.00120e-01

2.348e-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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