<?xml version='1.0' encoding='utf-8'?>
<model>
  <materials>
    <material id="1">
      <density units="g/cm3" value="0.998207"/>
      <nuclide ao="0.11187657362844" name="H1"/>
      <nuclide ao="1.7426371559999997e-05" name="H2"/>
      <nuclide ao="0.8877694078259999" name="O16"/>
      <nuclide ao="0.000336592174" name="O17"/>
    </material>
  </materials>
  <geometry>
    <cell id="1" material="1" region="-1" universe="1"/>
    <surface boundary="reflective" coeffs="0.0 0.0 0.0 1000000000.0" id="1" type="sphere"/>
  </geometry>
  <settings>
    <run_mode>fixed source</run_mode>
    <particles>10000</particles>
    <batches>1</batches>
    <source particle="photon" strength="1.0" type="independent">
      <space type="point">
        <parameters>0 0 0</parameters>
      </space>
      <angle type="isotropic"/>
      <energy type="discrete">
        <parameters>10000000.0 1.0</parameters>
      </energy>
    </source>
    <electron_treatment>ttb</electron_treatment>
    <photon_transport>true</photon_transport>
    <cutoff>
      <energy_photon>1000.0</energy_photon>
    </cutoff>
  </settings>
  <tallies>
    <filter id="1" type="particle">
      <bins>photon</bins>
    </filter>
    <tally id="1">
      <filters>1</filters>
      <scores>flux (n,gamma)</scores>
    </tally>
  </tallies>
</model>
