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Radionuclide Dosimetric Data Sheets

Rhodium-106m

Isotope:  Rh-106m
Atomic number (Z):  45
Mass number (A):  106
Neutron number (N):  61

Decay modes:  β-
Half-life:  131.0 [m]
Decay constant:  8.8187e-05 [1/s]
Daughters:  Pd-106 (100.0%)
Radioactive daughters:  None

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.34922 [MeV]
Mean photon energy:  2.85258 [MeV]
Air kerma rate constant, Γ₁₀:  1.024e-16 [Gy·m²/Bq·s]
Air kerma coefficient, K_air:  1.024e-16 [Gy·m²/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δ_wp:  5.595e-14 [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-:  5.595e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δ_p:  4.570e-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-106m 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-106m 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-106m 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-106m Summary Spectrum.csv

 

Energy [MeV]	Yield [#/nt] if > 0.01	Radiation type
7.85950e-06	1.241e-01	X-ray
2.21800e-01	6.413e-02	Gamma
2.28600e-01	2.052e-02	Gamma
3.28300e-01	1.197e-02	Gamma
3.90800e-01	3.506e-02	Gamma
4.06000e-01	1.163e-01	Gamma
4.29400e-01	1.325e-01	Gamma
4.50800e-01	2.420e-01	Gamma
5.11700e-01	8.550e-01	Gamma
6.01200e-01	2.993e-02	Gamma
6.16100e-01	2.018e-01	Gamma
6.45800e-01	2.736e-02	Gamma
6.80600e-01	1.881e-02	Gamma
7.03100e-01	4.446e-02	Gamma
7.17200e-01	2.890e-01	Gamma
7.48500e-01	1.932e-01	Gamma
7.93800e-01	5.643e-02	Gamma
8.04600e-01	1.300e-01	Gamma
8.08400e-01	7.439e-02	Gamma
8.25000e-01	1.359e-01	Gamma
8.48000e-01	1.966e-02	Gamma
8.48000e-01	1.624e-02	Gamma
1.02050e+00	1.966e-02	Gamma
1.04670e+00	3.035e-01	Gamma
1.12770e+00	1.368e-01	Gamma
1.20050e+00	1.137e-01	Gamma
1.22420e+00	8.123e-02	Gamma
1.39550e+00	2.822e-02	Gamma
1.52940e+00	1.753e-01	Gamma
1.57390e+00	6.669e-02	Gamma
1.72460e+00	2.223e-02	Gamma
1.84060e+00	1.881e-02	Gamma
2.38923e-01	1.242e-01	Beta
3.16755e-01	7.281e-01	Beta
4.94419e-01	3.769e-02	Beta
5.00520e-01	3.169e-02	Beta
5.19576e-01	2.912e-02	Beta
6.08905e-01	1.413e-02	Beta
6.35098e-01	1.028e-02	Beta
6.80527e-01	2.484e-02	Beta
3.82047e-05	4.673e-02	Auger electron
1.26175e-04	1.228e-02	Auger electron
2.92838e-04	3.036e-02	Auger electron
2.38210e-03	1.161e-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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