The nuclides dataset contains information on all known nuclides, providing
data on nuclear structure and decay modes across 118 elements. There is data
here on natural abundances, atomic mass, spin, half-life, and more. The
typical users for such a dataset include researchers in fields such as
nuclear physics, radiochemistry, and nuclear medicine.
Format
A tibble with 3,383 rows and 29 variables:
- nuclide
The symbol for the nuclide.
- z, n
The number of protons and neutrons.
- element
The element symbol.
- radius, radius_uncert
The charge radius and its associated uncertainty. In units of fm.
- abundance, abundance_uncert
The abundance of the stable isotope as a mole fraction (in relation to other stable isotopes of the same element). Values are provided for the nuclide only if
is_stableisTRUE.- is_stable
Is the nuclide a stable isotope?
- half_life, half_life_uncert
The nuclide's half life represented as seconds.
- isospin
The isospin, or the quantum number related to the up and down quark content of the particle.
- decay_1, decay_2, decay_3
The 1st, 2nd, and 3rd decay modes.
- decay_1_pct, decay_1_pct_uncert, decay_2_pct, decay_2_pct_uncert, decay_3_pct, decay_3_pct_uncert
The branching proportions for the 1st, 2nd, and 3rd decays (along with uncertainty values).
- magnetic_dipole, magnetic_dipole_uncert
The magnetic dipole and its associated uncertainty. Expressed in units of micro N, or nuclear magneton values.
- electric_quadrupole, electric_quadrupole_uncert
The electric quadrupole and its associated uncertainty. In units of barn (b).
- atomic_mass, atomic_mass_uncert
The atomic mass and its associated uncertainty. In units of micro AMU.
- mass_excess, mass_excess_uncert
The mass excess and its associated uncertainty. In units of keV.
Examples
dplyr::glimpse(nuclides)
#> Rows: 3,383
#> Columns: 29
#> $ nuclide <chr> "^{1}_{1}H0", "^{2}_{1}H1", "^{3}_{1}H2", "…
#> $ z <int> 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2…
#> $ n <int> 0, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7, 8…
#> $ element <chr> "H", "H", "H", "H", "H", "H", "H", "He", "H…
#> $ radius <dbl> 0.8783, 2.1421, 1.7591, NA, NA, NA, NA, 1.9…
#> $ radius_uncert <dbl> 0.0086, 0.0088, 0.0363, NA, NA, NA, NA, 0.0…
#> $ abundance <dbl> 0.999855, 0.000145, NA, NA, NA, NA, NA, 0.0…
#> $ abundance_uncert <dbl> 0.000078, 0.000078, NA, NA, NA, NA, NA, 0.0…
#> $ is_stable <lgl> TRUE, TRUE, FALSE, FALSE, FALSE, FALSE, FAL…
#> $ half_life <dbl> NA, NA, 3.887813e+08, NA, 8.608259e-23, 2.9…
#> $ half_life_uncert <dbl> NA, NA, 6.311385e+05, NA, 6.496799e-24, 8.3…
#> $ isospin <chr> NA, NA, NA, "1", NA, NA, NA, NA, "0", "1/2"…
#> $ decay_1 <chr> NA, NA, "B-", "N", "2N", NA, NA, NA, NA, "N…
#> $ decay_1_pct <dbl> NA, NA, 1, 1, 1, NA, NA, NA, NA, NA, 1, NA,…
#> $ decay_1_pct_uncert <dbl> NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,…
#> $ decay_2 <chr> NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,…
#> $ decay_2_pct <dbl> NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,…
#> $ decay_2_pct_uncert <dbl> NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,…
#> $ decay_3 <chr> NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,…
#> $ decay_3_pct <dbl> NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,…
#> $ decay_3_pct_uncert <dbl> NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,…
#> $ magnetic_dipole <dbl> 2.7928474, 0.8574382, 2.9789625, NA, NA, NA…
#> $ magnetic_dipole_uncert <dbl> 9.0e-09, 5.0e-09, 1.4e-08, NA, NA, NA, NA, …
#> $ electric_quadrupole <dbl> NA, 0.0028578, NA, NA, NA, NA, NA, NA, NA, …
#> $ electric_quadrupole_uncert <dbl> NA, 3e-07, NA, NA, NA, NA, NA, NA, NA, NA, …
#> $ atomic_mass <dbl> 1007825, 2014102, 3016049, 4026432, 5035311…
#> $ atomic_mass_uncert <dbl> 0.000014, 0.000015, 0.000080, 107.354000, 9…
#> $ mass_excess <dbl> 7288.971, 13135.723, 14949.811, 24621.129, …
#> $ mass_excess_uncert <dbl> 0.000013, 0.000015, 0.000080, 100.000000, 8…