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Radionuclide Dosimetric Data Sheets

Silver-106

Summary data

General

Classification

Isotope:  Ag-106
Atomic number (Z):  47
Mass number (A):  106
Neutron number (N):  59

Radioactive decay

Decay modes:  β-, β+, Electron capture
Half-life:  23.96 [m]
Decay constant:  4.8216e-04 [1/s]
Daughters:  Pd-106 (99.0%), Cd-106 (1.0%)
Radioactive daughters:  None

Dosimetric constants

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.49666 [MeV]
Mean photon energy:  0.69964 [MeV]
Air kerma rate constant, Γ106.972e-18 [Gy·m2/Bq·s]
Air kerma coefficient, Kair2.964e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δwp7.957e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for alphas, Δα0.000e+00 [Gy·kg/Bq·s]
Equilibrium dose constant for betas/electrons, Δβ-,β+,e-7.957e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp1.121e-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/Ag-106 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/Ag-106 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/Ag-106 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/Ag-106 Summary Spectrum.csv

 

Energy [MeV]

Yield [#/nt] if > 0.01

Radiation type

7.85943e-06

3.252e+00

X-ray

2.82809e-03

1.074e-02

X-ray

2.09884e-02

8.297e-02

X-ray

2.11504e-02

1.567e-01

X-ray

2.37657e-02

1.350e-02

X-ray

2.37942e-02

2.624e-02

X-ray

5.11000e-01

1.171e+00

Annihilation photon

5.11900e-01

1.686e-01

Gamma

5.35550e-02

1.000e-02

Beta

6.36283e-01

6.437e-02

Positron

8.68093e-01

5.209e-01

Positron

3.81980e-05

1.225e+00

Auger electron

1.21680e-04

7.419e-02

Auger electron

1.26000e-04

3.220e-01

Auger electron

2.92898e-04

7.948e-01

Auger electron

2.38226e-03

3.027e-01

Auger electron

2.75692e-03

6.139e-02

Auger electron

1.76856e-02

4.377e-02

Auger electron

2.05196e-02

1.737e-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

 

 

 

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