Isotope

import nexus as nx

my_isotope = nx.lib.moessbauer.Ta181

print(my_isotope)

print(my_isotope.nuclear_cross_section) # in m^2

MoessbauerIsotope: 181-Ta
  .element = Ta
  .mass (u) = 180.94799645
  .spin_ground = 3.5
  .spin_excited = 4.5
  .energy (eV) = 6215.7
  .wavelength (m) = 1.994694e-10
  .kvector (1/m) = 3.149949e+10
  .lifetime (s) = 8.728300e-06
  .half_lifetime (s) = 6.049997e-06
  .gamma (eV) = 7.541124e-11
  .gamma_photon (eV) = 1.604495e-12
  .gamma_electron (eV) = 7.380675e-11
  .quality_factor = 8.242405e+13
  .internal_conversion = 46.0
  .multipolarity = E1 (L = 1, lambda = 1)
  .mixing_ratio_E2M1 = 0.0
  .gfactor_ground = 0.6772857
  .gfactor_excited = 1.173
  .quadrupole_ground (barn) = 3.17
  .quadrupole_excited (barn) = 3.71
  .interference_term (beat) = -0.08
  .magnetic_moment_ground (eV/T) = 7.472885542354937e-08
  .magnetic_moment_excited (eV/T) = 1.6640213949517502e-07
  .nuclear_cross_section (converted to kbarn) = 1684.165915018059

1.6841659150180587e-22

Ta181 = nx.MoessbauerIsotope(
    isotope = "181-Ta",
    element = "Ta",
    mass = 180.94799645,

    energy = 6215.7,
    lifetime = 8728.3,

    internal_conversion = 46,
    multipolarity = nx.Multipolarity_E1,
    mixing_ratio_E2M1 = 0,

    spin_ground = 7/2,
    spin_excited = 9/2,

    gfactor_ground = 0.6772857,
    gfactor_excited = 1.173,

    quadrupole_ground = 3.17,
    quadrupole_excited = 3.71,

    interference_term = -0.08
)

print(Ta181)

print(Ta181.nuclear_cross_section)

MoessbauerIsotope: 181-Ta
  .element = Ta
  .mass (u) = 180.94799645
  .spin_ground = 3.5
  .spin_excited = 4.5
  .energy (eV) = 6215.7
  .wavelength (m) = 1.994694e-10
  .kvector (1/m) = 3.149949e+10
  .lifetime (s) = 8.728300e-06
  .half_lifetime (s) = 6.049997e-06
  .gamma (eV) = 7.541124e-11
  .gamma_photon (eV) = 1.604495e-12
  .gamma_electron (eV) = 7.380675e-11
  .quality_factor = 8.242405e+13
  .internal_conversion = 46.0
  .multipolarity = E1 (L = 1, lambda = 1)
  .mixing_ratio_E2M1 = 0.0
  .gfactor_ground = 0.6772857
  .gfactor_excited = 1.173
  .quadrupole_ground (barn) = 3.17
  .quadrupole_excited (barn) = 3.71
  .interference_term (beat) = -0.08
  .magnetic_moment_ground (eV/T) = 7.472885542354937e-08
  .magnetic_moment_excited (eV/T) = 1.6640213949517502e-07
  .nuclear_cross_section (converted to kbarn) = 1684.165915018059

1.6841659150180587e-22