{
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   "cell_type": "markdown",
   "id": "7e5d9c0b-a466-42b0-ae22-a7df0a6783c9",
   "metadata": {},
   "source": [
    "# Isotope"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "13c8f0a3",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "MoessbauerIsotope: 181-Ta\n",
      "  .element = Ta\n",
      "  .mass (u) = 180.94799645\n",
      "  .spin_ground = 3.5\n",
      "  .spin_excited = 4.5\n",
      "  .energy (eV) = 6215.7\n",
      "  .wavelength (m) = 1.994694e-10\n",
      "  .kvector (1/m) = 3.149949e+10\n",
      "  .lifetime (s) = 8.728300e-06\n",
      "  .half_lifetime (s) = 6.049997e-06\n",
      "  .gamma (eV) = 7.541124e-11\n",
      "  .gamma_photon (eV) = 1.604495e-12\n",
      "  .gamma_electron (eV) = 7.380675e-11\n",
      "  .quality_factor = 8.242405e+13\n",
      "  .internal_conversion = 46.0\n",
      "  .multipolarity = E1 (L = 1, lambda = 1)\n",
      "  .mixing_ratio_E2M1 = 0.0\n",
      "  .gfactor_ground = 0.6772857\n",
      "  .gfactor_excited = 1.173\n",
      "  .quadrupole_ground (barn) = 3.17\n",
      "  .quadrupole_excited (barn) = 3.71\n",
      "  .interference_term (beat) = -0.08\n",
      "  .magnetic_moment_ground (eV/T) = 7.472885542354937e-08\n",
      "  .magnetic_moment_excited (eV/T) = 1.6640213949517502e-07\n",
      "  .nuclear_cross_section (converted to kbarn) = 1684.165915018059\n",
      "\n",
      "1.6841659150180587e-22\n"
     ]
    }
   ],
   "source": [
    "import nexus as nx\n",
    "\n",
    "my_isotope = nx.lib.moessbauer.Ta181\n",
    "\n",
    "print(my_isotope)\n",
    "\n",
    "print(my_isotope.nuclear_cross_section) # in m^2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "6d556d83",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "MoessbauerIsotope: 181-Ta\n",
      "  .element = Ta\n",
      "  .mass (u) = 180.94799645\n",
      "  .spin_ground = 3.5\n",
      "  .spin_excited = 4.5\n",
      "  .energy (eV) = 6215.7\n",
      "  .wavelength (m) = 1.994694e-10\n",
      "  .kvector (1/m) = 3.149949e+10\n",
      "  .lifetime (s) = 8.728300e-06\n",
      "  .half_lifetime (s) = 6.049997e-06\n",
      "  .gamma (eV) = 7.541124e-11\n",
      "  .gamma_photon (eV) = 1.604495e-12\n",
      "  .gamma_electron (eV) = 7.380675e-11\n",
      "  .quality_factor = 8.242405e+13\n",
      "  .internal_conversion = 46.0\n",
      "  .multipolarity = E1 (L = 1, lambda = 1)\n",
      "  .mixing_ratio_E2M1 = 0.0\n",
      "  .gfactor_ground = 0.6772857\n",
      "  .gfactor_excited = 1.173\n",
      "  .quadrupole_ground (barn) = 3.17\n",
      "  .quadrupole_excited (barn) = 3.71\n",
      "  .interference_term (beat) = -0.08\n",
      "  .magnetic_moment_ground (eV/T) = 7.472885542354937e-08\n",
      "  .magnetic_moment_excited (eV/T) = 1.6640213949517502e-07\n",
      "  .nuclear_cross_section (converted to kbarn) = 1684.165915018059\n",
      "\n",
      "1.6841659150180587e-22\n"
     ]
    }
   ],
   "source": [
    "Ta181 = nx.MoessbauerIsotope(\n",
    "    isotope = \"181-Ta\",\n",
    "    element = \"Ta\",\n",
    "    mass = 180.94799645,\n",
    "\n",
    "    energy = 6215.7,\n",
    "    lifetime = 8728.3,\n",
    "\n",
    "    internal_conversion = 46,\n",
    "    multipolarity = nx.Multipolarity_E1,\n",
    "    mixing_ratio_E2M1 = 0,\n",
    "\n",
    "    spin_ground = 7/2,\n",
    "    spin_excited = 9/2,\n",
    "\n",
    "    gfactor_ground = 0.6772857,\n",
    "    gfactor_excited = 1.173,\n",
    "\n",
    "    quadrupole_ground = 3.17,\n",
    "    quadrupole_excited = 3.71,\n",
    "\n",
    "    interference_term = -0.08\n",
    ")\n",
    "\n",
    "print(Ta181)\n",
    "\n",
    "print(Ta181.nuclear_cross_section)"
   ]
  }
 ],
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