<= Return to MIRDspec isotope database
Radionuclide Dosimetric Data Sheets
Rhodium-97
Summary data
General
Classification
Isotope: Rh-97
Atomic number (Z): 45
Mass number (A): 97
Neutron number (N): 52
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 30.7 [m]
Decay constant: 3.7630e-04 [1/s]
Daughters: Ru-97 (100.0%)
Radioactive daughters: Ru-97
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.52114 [MeV]
Mean photon energy: 1.44483 [MeV]
Air kerma rate constant, Γ10: 3.389e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 5.649e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 8.350e-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-:
8.350e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 2.315e-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-97 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-97 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-97 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-97 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
8.90920e-06 |
3.753e+00 |
X-ray |
|
2.54865e-03 |
1.001e-02 |
X-ray |
|
1.91152e-02 |
8.407e-02 |
X-ray |
|
1.92483e-02 |
1.595e-01 |
X-ray |
|
2.16049e-02 |
1.338e-02 |
X-ray |
|
2.16277e-02 |
2.603e-02 |
X-ray |
|
1.89210e-01 |
1.045e-02 |
Gamma |
|
4.21550e-01 |
7.463e-01 |
Gamma |
|
5.11000e-01 |
1.168e+00 |
Annihilation photon |
|
7.77440e-01 |
1.440e-02 |
Gamma |
|
8.07700e-01 |
1.343e-02 |
Gamma |
|
8.40130e-01 |
1.202e-01 |
Gamma |
|
8.78800e-01 |
9.030e-02 |
Gamma |
|
1.05370e+00 |
1.470e-02 |
Gamma |
|
1.22870e+00 |
1.067e-02 |
Gamma |
|
1.31010e+00 |
1.119e-02 |
Gamma |
|
2.15210e+00 |
1.045e-02 |
Gamma |
|
5.57408e-01 |
1.164e-02 |
Positron |
|
7.14801e-01 |
2.985e-02 |
Positron |
|
7.32267e-01 |
4.477e-02 |
Positron |
|
9.23234e-01 |
4.885e-01 |
Positron |
|
3.14526e-05 |
1.557e+00 |
Auger electron |
|
1.07963e-04 |
8.086e-02 |
Auger electron |
|
1.14209e-04 |
3.520e-01 |
Auger electron |
|
2.31916e-04 |
8.619e-01 |
Auger electron |
|
2.15881e-03 |
3.362e-01 |
Auger electron |
|
2.46833e-03 |
5.730e-02 |
Auger electron |
|
1.61570e-02 |
5.302e-02 |
Auger electron |
|
1.86981e-02 |
2.040e-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)
<= Return to MIRDspec isotope database
