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Radionuclide Dosimetric Data Sheets
Niobium-88m
Summary data
General
Classification
Isotope: Nb-88m
Atomic number (Z): 41
Mass number (A): 88
Neutron number (N): 47
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 7.78 [m]
Decay constant: 1.4849e-03 [1/s]
Daughters: Zr-88 (100.0%)
Radioactive daughters: Zr-88
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 1.4589 [MeV]
Mean photon energy: 4.1063 [MeV]
Air kerma rate constant, Γ10: 1.117e-16 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 1.478e-16 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 2.337e-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-:
2.337e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 6.579e-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/Nb-88m 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/Nb-88m 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/Nb-88m 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/Nb-88m Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
6.52412e-06 |
9.048e-01 |
X-ray |
|
1.56498e-02 |
1.388e-02 |
X-ray |
|
1.57372e-02 |
2.656e-02 |
X-ray |
|
2.62200e-01 |
9.708e-02 |
Gamma |
|
3.99400e-01 |
4.597e-01 |
Gamma |
|
4.50600e-01 |
2.676e-01 |
Gamma |
|
4.65600e-01 |
1.660e-02 |
Gamma |
|
5.11000e-01 |
1.864e+00 |
Annihilation photon |
|
5.33800e-01 |
1.237e-01 |
Gamma |
|
5.73200e-01 |
3.622e-02 |
Gamma |
|
5.73200e-01 |
3.622e-02 |
Gamma |
|
6.25300e-01 |
1.137e-02 |
Gamma |
|
6.38000e-01 |
2.636e-01 |
Gamma |
|
6.61600e-01 |
1.911e-02 |
Gamma |
|
6.71900e-01 |
1.911e-02 |
Gamma |
|
7.38000e-01 |
1.127e-02 |
Gamma |
|
7.38000e-01 |
1.127e-02 |
Gamma |
|
7.60800e-01 |
1.791e-01 |
Gamma |
|
8.21200e-01 |
1.097e-02 |
Gamma |
|
8.50000e-01 |
2.012e-02 |
Gamma |
|
9.18500e-01 |
6.941e-02 |
Gamma |
|
9.31200e-01 |
1.066e-02 |
Gamma |
|
1.05710e+00 |
8.984e-01 |
Gamma |
|
1.08260e+00 |
5.422e-01 |
Gamma |
|
1.09460e+00 |
1.056e-02 |
Gamma |
|
1.39920e+00 |
2.515e-02 |
Gamma |
|
1.39940e+00 |
2.414e-02 |
Gamma |
|
1.40680e+00 |
1.056e-02 |
Gamma |
|
1.47900e+00 |
1.006e-02 |
Gamma |
|
1.52020e+00 |
1.137e-02 |
Gamma |
|
1.54820e+00 |
1.137e-02 |
Gamma |
|
1.75240e+00 |
1.469e-02 |
Gamma |
|
1.81790e+00 |
1.016e-01 |
Gamma |
|
1.97570e+00 |
5.070e-02 |
Gamma |
|
2.58090e+00 |
1.217e-02 |
Gamma |
|
1.05629e+00 |
3.513e-02 |
Positron |
|
1.10084e+00 |
1.216e-02 |
Positron |
|
1.11398e+00 |
3.173e-02 |
Positron |
|
1.12558e+00 |
2.575e-02 |
Positron |
|
1.17775e+00 |
3.533e-02 |
Positron |
|
1.18202e+00 |
2.987e-02 |
Positron |
|
1.21169e+00 |
2.338e-02 |
Positron |
|
1.32314e+00 |
1.669e-02 |
Positron |
|
1.35591e+00 |
1.483e-02 |
Positron |
|
1.42275e+00 |
1.133e-02 |
Positron |
|
1.44739e+00 |
5.666e-02 |
Positron |
|
1.49349e+00 |
2.884e-02 |
Positron |
|
1.60947e+00 |
5.151e-02 |
Positron |
|
1.62995e+00 |
3.791e-01 |
Positron |
|
1.71978e+00 |
3.606e-02 |
Positron |
|
1.88495e+00 |
3.296e-02 |
Positron |
|
2.55443e+00 |
7.211e-02 |
Positron |
|
2.22357e-05 |
4.798e-01 |
Auger electron |
|
9.83612e-05 |
7.177e-02 |
Auger electron |
|
1.06465e-04 |
1.516e-02 |
Auger electron |
|
1.17889e-04 |
1.643e-01 |
Auger electron |
|
1.75387e-03 |
6.810e-02 |
Auger electron |
|
1.33271e-02 |
1.289e-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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