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Radionuclide Dosimetric Data Sheets

Rhodium-102m

Isotope:  Rh-102m
Atomic number (Z):  45
Mass number (A):  102
Neutron number (N):  57

Decay modes:  β+, Electron capture, Internal transition
Half-life:  3.742 [y]
Decay constant:  5.8698e-09 [1/s]
Daughters:  Rh-102 (0.233%), Ru-102 (99.8%)
Radioactive daughters:  Rh-102

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.01249 [MeV]
Mean photon energy:  2.15356 [MeV]
Air kerma rate constant, Γ₁₀:  8.879e-17 [Gy·m²/Bq·s]
Air kerma coefficient, K_air:  8.879e-17 [Gy·m²/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δ_wp:  2.001e-15 [Gy·kg/Bq·s]
Equilibrium dose constant for alphas, Δ_α:  0.000e+00 [Gy·kg/Bq·s]
Equilibrium dose constant for betas/electrons, Δ_β-,β+,e-:  2.001e-15 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δ_p:  3.450e-13 [Gy·kg/Bq·s]

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-102m DPK.csv

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-102m Summary Spectrum.csv

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-102m Beta Spectrum.csv

 

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-102m Summary Spectrum.csv

 

Energy [MeV]	Yield [#/nt] if > 0.01	Radiation type
8.90909e-06	9.024e+00	X-ray
9.95764e-06	3.469e-02	X-ray
2.54865e-03	2.399e-02	X-ray
2.67727e-03	1.109e-02	X-ray
1.91152e-02	1.986e-01	X-ray
1.92483e-02	3.768e-01	X-ray
2.16049e-02	3.162e-02	X-ray
2.16277e-02	6.149e-02	X-ray
2.20364e-02	1.192e-02	X-ray
4.15250e-01	2.095e-02	Gamma
4.18520e-01	9.378e-02	Gamma
4.20400e-01	3.193e-02	Gamma
4.75060e-01	9.478e-01	Gamma
6.28050e-01	8.281e-02	Gamma
6.31290e-01	5.587e-01	Gamma
6.92400e-01	1.596e-02	Gamma
6.95600e-01	2.893e-02	Gamma
6.97490e-01	4.390e-01	Gamma
7.66840e-01	3.392e-01	Gamma
1.04659e+00	3.392e-01	Gamma
1.10316e+00	4.589e-02	Gamma
1.11284e+00	1.896e-01	Gamma
3.14494e-05	3.744e+00	Auger electron
3.35151e-05	1.373e-02	Auger electron
1.08165e-04	2.013e-01	Auger electron
1.14103e-04	8.460e-01	Auger electron
2.31944e-04	2.072e+00	Auger electron
2.77515e-04	1.524e-02	Auger electron
2.15901e-03	8.053e-01	Auger electron
2.46863e-03	1.373e-01	Auger electron
1.61570e-02	1.253e-01	Auger electron
1.86981e-02	4.819e-02	Auger electron

 

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

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

 

 

 

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