<?xml version='1.0' encoding='utf-8'?>
<geometry>
  <cell id="13" material="13" region="-9" universe="9" />
  <surface boundary="reflective" coeffs="0.0 0.0 0.0 1000000000.0" id="9" type="sphere" />
</geometry>
<?xml version='1.0' encoding='utf-8'?>
<materials>
  <material id="13">
    <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>
<?xml version='1.0' encoding='utf-8'?>
<settings>
  <run_mode>fixed source</run_mode>
  <particles>10000</particles>
  <batches>1</batches>
  <source particle="photon" strength="1.0">
    <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>
<?xml version='1.0' encoding='utf-8'?>
<tallies>
  <filter id="1" type="particle">
    <bins>photon</bins>
  </filter>
  <tally id="1">
    <filters>1</filters>
    <scores>flux (n,gamma)</scores>
  </tally>
</tallies>
