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Radionuclide Dosimetric Data Sheets
Rhodium-102
Summary data
General
Classification
Isotope: Rh-102
Atomic number (Z): 45
Mass number (A): 102
Neutron number (N): 57
Radioactive decay
Decay modes: β-, β+, Electron capture
Half-life: 207.0 [d]
Decay constant: 3.8756e-08 [1/s]
Daughters: Ru-102 (78.0%), Pd-102 (22.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.17172 [MeV]
Mean photon energy: 0.50597 [MeV]
Air kerma rate constant, Γ10: 1.890e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 2.486e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 2.751e-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-:
2.751e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 8.107e-14
[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/Rh-102 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/Rh-102 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/Rh-102 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/Rh-102 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
8.90916e-06 |
5.589e+00 |
X-ray |
|
2.54865e-03 |
1.489e-02 |
X-ray |
|
1.91152e-02 |
1.246e-01 |
X-ray |
|
1.92483e-02 |
2.363e-01 |
X-ray |
|
2.16049e-02 |
1.983e-02 |
X-ray |
|
2.16277e-02 |
3.857e-02 |
X-ray |
|
4.68580e-01 |
2.895e-02 |
Gamma |
|
4.75060e-01 |
4.593e-01 |
Gamma |
|
5.11000e-01 |
3.078e-01 |
Annihilation photon |
|
5.56600e-01 |
2.002e-02 |
Gamma |
|
6.28050e-01 |
4.493e-02 |
Gamma |
|
1.10316e+00 |
2.895e-02 |
Gamma |
|
1.89578e-01 |
2.000e-02 |
Beta |
|
3.66691e-01 |
4.099e-02 |
Positron |
|
4.13312e-01 |
2.000e-01 |
Beta |
|
5.76332e-01 |
1.127e-01 |
Positron |
|
3.14516e-05 |
2.318e+00 |
Auger electron |
|
1.08026e-04 |
1.217e-01 |
Auger electron |
|
1.14176e-04 |
5.241e-01 |
Auger electron |
|
2.31925e-04 |
1.283e+00 |
Auger electron |
|
2.15887e-03 |
5.001e-01 |
Auger electron |
|
2.46842e-03 |
8.523e-02 |
Auger electron |
|
1.61570e-02 |
7.857e-02 |
Auger electron |
|
1.86981e-02 |
3.023e-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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