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Radionuclide Dosimetric Data Sheets
Bromine-82
Summary data
General
Classification
Isotope: Br-82
Atomic number (Z): 35
Mass number (A): 82
Neutron number (N): 47
Radioactive decay
Decay modes: β-
Half-life: 35.3 [h]
Decay constant: 5.4544e-06 [1/s]
Daughters: Kr-82 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.14543 [MeV]
Mean photon energy: 2.63892 [MeV]
Air kerma rate constant, Γ10: 9.544e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 9.544e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 2.330e-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-:
2.330e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 4.228e-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/Br-82 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-82 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-82 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-82 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.93801e-05 |
3.284e-02 |
X-ray |
|
2.21480e-01 |
2.264e-02 |
Gamma |
|
5.54348e-01 |
7.076e-01 |
Gamma |
|
6.06370e-01 |
1.211e-02 |
Gamma |
|
6.19106e-01 |
4.344e-01 |
Gamma |
|
6.98374e-01 |
2.849e-01 |
Gamma |
|
7.76517e-01 |
8.354e-01 |
Gamma |
|
8.27828e-01 |
2.403e-01 |
Gamma |
|
1.00759e+00 |
1.271e-02 |
Gamma |
|
1.04400e+00 |
2.723e-01 |
Gamma |
|
1.31747e+00 |
2.648e-01 |
Gamma |
|
1.47488e+00 |
1.632e-01 |
Gamma |
|
7.61894e-02 |
1.281e-02 |
Beta |
|
1.37756e-01 |
9.704e-01 |
Beta |
|
5.62718e-05 |
1.436e-02 |
Auger 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)
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