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Radionuclide Dosimetric Data Sheets
Ruthenium-97
Summary data
General
Classification
Isotope: Ru-97
Atomic number (Z): 44
Mass number (A): 97
Neutron number (N): 53
Radioactive decay
Decay modes: Electron capture
Half-life: 2.9 [d]
Decay constant: 2.7664e-06 [1/s]
Daughters: Tc-97 (100.0%), Tc-97m (0.0422%)
Radioactive daughters: Tc-97, Tc-97m
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.01318 [MeV]
Mean photon energy: 0.24077 [MeV]
Air kerma rate constant, Γ10: 1.919e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 1.919e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 2.112e-15 [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-:
2.112e-15 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 3.858e-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/Ru-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/Ru-97 Summary 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/Ru-97 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
7.87643e-06 |
9.762e+00 |
X-ray |
|
2.41453e-03 |
2.305e-02 |
X-ray |
|
2.53088e-03 |
1.071e-02 |
X-ray |
|
1.82141e-02 |
2.023e-01 |
X-ray |
|
1.83344e-02 |
3.845e-01 |
X-ray |
|
2.05668e-02 |
3.180e-02 |
X-ray |
|
2.05871e-02 |
6.189e-02 |
X-ray |
|
2.09655e-02 |
1.179e-02 |
X-ray |
|
2.15700e-01 |
8.560e-01 |
Gamma |
|
3.24490e-01 |
1.079e-01 |
Gamma |
|
2.93992e-05 |
4.266e+00 |
Auger electron |
|
1.06664e-04 |
2.030e-01 |
Auger electron |
|
1.10211e-04 |
8.904e-01 |
Auger electron |
|
2.03926e-04 |
2.160e+00 |
Auger electron |
|
2.47564e-04 |
1.812e-02 |
Auger electron |
|
2.05401e-03 |
8.506e-01 |
Auger electron |
|
2.33289e-03 |
1.325e-01 |
Auger electron |
|
1.54229e-02 |
1.401e-01 |
Auger electron |
|
1.78238e-02 |
5.291e-02 |
Auger electron |
|
1.94688e-01 |
2.858e-02 |
Conversion 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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