<?xml version='1.0' encoding='utf-8'?>
<model>
  <materials>
    <material depletable="true" id="13" name="fuel">
      <density units="g/cc" value="4.5"/>
      <nuclide ao="1.0" name="U235"/>
    </material>
    <material id="14" name="zircaloy">
      <density units="g/cc" value="5.77"/>
      <nuclide ao="0.5145" name="Zr90"/>
      <nuclide ao="0.1122" name="Zr91"/>
      <nuclide ao="0.1715" name="Zr92"/>
      <nuclide ao="0.1738" name="Zr94"/>
      <nuclide ao="0.028" name="Zr96"/>
    </material>
    <material id="15" name="water">
      <density units="atom/b-cm" value="0.07416"/>
      <nuclide ao="2.0" name="H1"/>
      <nuclide ao="1.0" name="O16"/>
    </material>
  </materials>
  <geometry>
    <cell id="13" material="13" name="fuel" region="73 -74 75 -76 77 -78" universe="5"/>
    <cell id="14" material="14" name="clad" region="(-73 | 74 | -75 | 76 | -77 | 78) (79 -80 81 -82 83 -84)" universe="5"/>
    <cell id="15" material="15" name="water" region="(-79 | 80 | -81 | 82 | -83 | 84) (85 -86 87 -88 89 -90)" universe="5"/>
    <surface coeffs="-5.0" id="73" name="minimum x" type="x-plane"/>
    <surface coeffs="5.0" id="74" name="maximum x" type="x-plane"/>
    <surface coeffs="-5.0" id="75" name="minimum y" type="y-plane"/>
    <surface coeffs="5.0" id="76" name="maximum y" type="y-plane"/>
    <surface coeffs="-5.0" id="77" name="minimum z" type="z-plane"/>
    <surface coeffs="5.0" id="78" name="maximum z" type="z-plane"/>
    <surface coeffs="-6.0" id="79" name="minimum x" type="x-plane"/>
    <surface coeffs="6.0" id="80" name="maximum x" type="x-plane"/>
    <surface coeffs="-6.0" id="81" name="minimum y" type="y-plane"/>
    <surface coeffs="6.0" id="82" name="maximum y" type="y-plane"/>
    <surface coeffs="-6.0" id="83" name="minimum z" type="z-plane"/>
    <surface coeffs="6.0" id="84" name="maximum z" type="z-plane"/>
    <surface boundary="vacuum" coeffs="-15" id="85" name="minimum x" type="x-plane"/>
    <surface boundary="vacuum" coeffs="15" id="86" name="maximum x" type="x-plane"/>
    <surface boundary="vacuum" coeffs="-15" id="87" name="minimum y" type="y-plane"/>
    <surface boundary="vacuum" coeffs="15" id="88" name="maximum y" type="y-plane"/>
    <surface boundary="vacuum" coeffs="-15" id="89" name="minimum z" type="z-plane"/>
    <surface boundary="vacuum" coeffs="15" id="90" name="maximum z" type="z-plane"/>
  </geometry>
  <settings>
    <run_mode>fixed source</run_mode>
    <particles>100</particles>
    <batches>10</batches>
    <source strength="1.0">
      <space origin="0.0 0.0 0.0" type="spherical">
        <r parameters="0.0 0.0" type="uniform"/>
        <cos_theta type="discrete">
          <parameters>1.0 1.0</parameters>
        </cos_theta>
        <phi type="discrete">
          <parameters>0.0 1.0</parameters>
        </phi>
      </space>
      <angle reference_uvw="-1.0 0.0 0.0" type="monodirectional"/>
      <energy type="discrete">
        <parameters>15000000.0 1.0</parameters>
      </energy>
    </source>
  </settings>
  <tallies>
    <mesh id="9">
      <dimension>10 10 10</dimension>
      <lower_left>-10.0 -10.0 -10.0</lower_left>
      <upper_right>10.0 10.0 10.0</upper_right>
    </mesh>
    <mesh id="10" library="moab" type="unstructured">
      <filename>test_mesh_tets_w_holes.exo</filename>
    </mesh>
    <filter id="9" type="mesh">
      <bins>9</bins>
    </filter>
    <filter id="10" type="mesh">
      <bins>10</bins>
    </filter>
    <tally id="9" name="regular mesh tally">
      <filters>9</filters>
      <scores>flux</scores>
      <estimator>tracklength</estimator>
    </tally>
    <tally id="10" name="unstructured mesh tally">
      <filters>10</filters>
      <scores>flux</scores>
      <estimator>tracklength</estimator>
    </tally>
  </tallies>
</model>
