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Radionuclide Dosimetric Data Sheets
Rubidium-89
Summary data
General
Classification
Isotope: Rb-89
Atomic number (Z): 37
Mass number (A): 89
Neutron number (N): 52
Radioactive decay
Decay modes: β-
Half-life: 15.15 [m]
Decay constant: 7.6254e-04 [1/s]
Daughters: Sr-89 (100.0%)
Radioactive daughters: Sr-89
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.95283 [MeV]
Mean photon energy: 2.24304 [MeV]
Air kerma rate constant, Γ10: 7.326e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 7.326e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.527e-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-:
1.527e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 3.594e-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/Rb-89 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/Rb-89 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/Rb-89 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/Rb-89 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
2.72420e-01 |
1.535e-02 |
Gamma |
|
6.57770e-01 |
1.082e-01 |
Gamma |
|
9.47730e-01 |
1.000e-01 |
Gamma |
|
1.03192e+00 |
6.290e-01 |
Gamma |
|
1.24814e+00 |
4.592e-01 |
Gamma |
|
1.53807e+00 |
2.768e-02 |
Gamma |
|
2.00750e+00 |
2.579e-02 |
Gamma |
|
2.19592e+00 |
1.447e-01 |
Gamma |
|
2.57020e+00 |
1.069e-01 |
Gamma |
|
2.70726e+00 |
2.201e-02 |
Gamma |
|
3.50900e+00 |
1.245e-02 |
Gamma |
|
3.50221e-01 |
1.573e-02 |
Beta |
|
4.70396e-01 |
3.403e-01 |
Beta |
|
7.03034e-01 |
2.269e-02 |
Beta |
|
7.65702e-01 |
3.146e-02 |
Beta |
|
8.99649e-01 |
3.527e-01 |
Beta |
|
1.48904e+00 |
3.813e-02 |
Beta |
|
1.98376e+00 |
1.792e-01 |
Beta |
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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