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Radionuclide Dosimetric Data Sheets

Lanthanum-130

Summary data

General

Classification

Isotope:  La-130
Atomic number (Z):  57
Mass number (A):  130
Neutron number (N):  73

Radioactive decay

Decay modes:  β+, Electron capture
Half-life:  8.7 [m]
Decay constant:  1.3279e-03 [1/s]
Daughters:  Ba-130 (100.0%)
Radioactive daughters:  None

Dosimetric constants

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  1.11133 [MeV]
Mean photon energy:  2.23242 [MeV]
Air kerma rate constant, Γ10:  5.387e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair:  8.127e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δwp:  1.781e-13 [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-:  1.781e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp:  3.577e-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/La-130 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/La-130 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/La-130 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/La-130 Summary Spectrum.csv

 

Energy [MeV]

Yield [#/nt] if > 0.01

Radiation type

1.86003e-05

4.305e+00

X-ray

4.45292e-03

1.358e-02

X-ray

3.18187e-02

7.094e-02

X-ray

3.22056e-02

1.306e-01

X-ray

3.63167e-02

1.248e-02

X-ray

3.63920e-02

2.419e-02

X-ray

3.57400e-01

8.100e-01

Gamma

4.53200e-01

3.807e-02

Gamma

5.11000e-01

1.416e+00

Annihilation photon

5.44500e-01

1.620e-01

Gamma

5.50700e-01

2.592e-01

Gamma

5.69400e-01

2.835e-02

Gamma

5.75700e-01

2.025e-02

Gamma

6.49600e-01

1.539e-02

Gamma

7.18200e-01

2.754e-02

Gamma

8.69300e-01

1.620e-02

Gamma

9.08000e-01

1.701e-01

Gamma

9.74900e-01

3.078e-02

Gamma

1.00360e+00

7.857e-02

Gamma

1.12020e+00

1.863e-02

Gamma

1.17110e+00

3.726e-02

Gamma

1.17740e+00

2.187e-02

Gamma

1.20010e+00

2.916e-02

Gamma

1.43880e+00

2.268e-02

Gamma

1.52570e+00

6.480e-02

Gamma

1.72170e+00

1.863e-02

Gamma

2.79670e+00

1.296e-02

Gamma

2.81010e+00

1.377e-02

Gamma

8.98711e-01

1.589e-02

Positron

1.03491e+00

3.675e-02

Positron

1.15780e+00

6.437e-02

Positron

1.24836e+00

6.457e-02

Positron

1.26609e+00

1.788e-02

Positron

1.39932e+00

3.079e-02

Positron

1.43656e+00

2.384e-02

Positron

1.49090e+00

5.364e-02

Positron

1.70319e+00

1.788e-01

Positron

1.70610e+00

4.371e-02

Positron

1.96306e+00

1.589e-01

Positron

1.08630e-05

9.186e-01

Auger electron

4.69812e-05

5.330e-01

Auger electron

4.88184e-05

1.457e+00

Auger electron

1.14478e-04

2.106e-01

Auger electron

3.41871e-04

4.255e-02

Auger electron

5.52269e-04

4.759e-01

Auger electron

6.90605e-04

3.504e-02

Auger electron

3.56903e-03

1.867e-01

Auger electron

4.33552e-03

5.966e-02

Auger electron

2.63448e-02

1.739e-02

Auger electron

3.19951e-01

1.756e-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

 

 

 

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