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Radionuclide Dosimetric Data Sheets
Rhodium-95
Summary data
General
Classification
Isotope: Rh-95
Atomic number (Z): 45
Mass number (A): 95
Neutron number (N): 50
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 5.02 [m]
Decay constant: 2.3013e-03 [1/s]
Daughters: Ru-95 (100.0%)
Radioactive daughters: Ru-95
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.89725 [MeV]
Mean photon energy: 2.56033 [MeV]
Air kerma rate constant, Γ10: 6.343e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 9.117e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.438e-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-:
1.438e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 4.102e-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/Rh-95 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-95 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-95 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-95 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
8.90920e-06 |
2.539e+00 |
X-ray |
|
1.91152e-02 |
5.688e-02 |
X-ray |
|
1.92483e-02 |
1.079e-01 |
X-ray |
|
2.16277e-02 |
1.761e-02 |
X-ray |
|
2.29300e-01 |
2.290e-02 |
Gamma |
|
4.10300e-01 |
1.074e-02 |
Gamma |
|
5.11000e-01 |
1.433e+00 |
Annihilation photon |
|
6.22500e-01 |
2.648e-02 |
Gamma |
|
6.61000e-01 |
1.539e-02 |
Gamma |
|
6.61000e-01 |
1.539e-02 |
Gamma |
|
6.77600e-01 |
5.797e-02 |
Gamma |
|
7.64400e-01 |
2.147e-02 |
Gamma |
|
8.95000e-01 |
1.718e-02 |
Gamma |
|
9.41600e-01 |
7.157e-01 |
Gamma |
|
1.07930e+00 |
1.324e-02 |
Gamma |
|
1.17540e+00 |
1.575e-02 |
Gamma |
|
1.30510e+00 |
1.789e-02 |
Gamma |
|
1.31700e+00 |
3.006e-02 |
Gamma |
|
1.35200e+00 |
2.083e-01 |
Gamma |
|
1.48930e+00 |
3.435e-02 |
Gamma |
|
1.49470e+00 |
5.010e-02 |
Gamma |
|
1.52450e+00 |
2.362e-02 |
Gamma |
|
2.12100e+00 |
1.610e-02 |
Gamma |
|
2.79180e+00 |
2.433e-02 |
Gamma |
|
3.06320e+00 |
1.002e-02 |
Gamma |
|
7.36364e-01 |
2.684e-02 |
Positron |
|
8.14623e-01 |
3.146e-02 |
Positron |
|
8.20079e-01 |
2.129e-02 |
Positron |
|
8.79438e-01 |
4.072e-02 |
Positron |
|
1.15310e+00 |
1.111e-02 |
Positron |
|
1.16698e+00 |
1.296e-02 |
Positron |
|
1.23355e+00 |
7.033e-02 |
Positron |
|
1.42606e+00 |
4.498e-01 |
Positron |
|
3.14527e-05 |
1.053e+00 |
Auger electron |
|
1.07960e-04 |
5.467e-02 |
Auger electron |
|
1.14210e-04 |
2.381e-01 |
Auger electron |
|
2.31916e-04 |
5.831e-01 |
Auger electron |
|
2.15881e-03 |
2.275e-01 |
Auger electron |
|
2.46832e-03 |
3.876e-02 |
Auger electron |
|
1.61570e-02 |
3.588e-02 |
Auger electron |
|
1.86981e-02 |
1.380e-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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