<= Return to MIRDspec isotope database
Radionuclide Dosimetric Data Sheets
Bromine-82m
Summary data
General
Classification
Isotope: Br-82m
Atomic number (Z): 35
Mass number (A): 82
Neutron number (N): 47
Radioactive decay
Decay modes: β-, Internal transition
Half-life: 6.13 [m]
Decay constant: 1.8846e-03 [1/s]
Daughters: Br-82 (97.6%), Kr-82 (2.4%)
Radioactive daughters: Br-82
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.07036 [MeV]
Mean photon energy: 0.00809 [MeV]
Air kerma rate constant, Γ10: 1.749e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 1.749e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.127e-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-:
1.127e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 1.296e-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/Br-82m 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/Br-82m 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/Br-82m 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/Br-82m Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.75909e-05 |
6.670e+00 |
X-ray |
|
1.47515e-03 |
1.025e-02 |
X-ray |
|
1.18329e-02 |
1.261e-01 |
X-ray |
|
1.18814e-02 |
2.435e-01 |
X-ray |
|
1.32432e-02 |
1.739e-02 |
X-ray |
|
1.32502e-02 |
3.394e-02 |
X-ray |
|
1.34134e+00 |
2.115e-02 |
Beta |
|
4.38648e-05 |
3.002e+00 |
Auger electron |
|
5.77398e-05 |
1.164e+00 |
Auger electron |
|
9.17935e-05 |
2.162e-01 |
Auger electron |
|
1.32050e-03 |
9.897e-01 |
Auger electron |
|
1.41177e-03 |
5.880e-02 |
Auger electron |
|
1.02029e-02 |
2.017e-01 |
Auger electron |
|
1.16354e-02 |
6.172e-02 |
Auger electron |
|
3.25140e-02 |
6.926e-01 |
Conversion electron |
|
4.41798e-02 |
1.263e-01 |
Conversion electron |
|
4.43469e-02 |
1.983e-02 |
Conversion electron |
|
4.43954e-02 |
8.994e-02 |
Conversion electron |
|
4.57642e-02 |
4.081e-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)
<= Return to MIRDspec isotope database
