<?xml version='1.0' encoding='utf-8'?>
<geometry>
  <cell id="16" material="16" name="fuel" region="91 -92 93 -94 95 -96" universe="6" />
  <cell id="17" material="17" name="clad" region="(-91 | 92 | -93 | 94 | -95 | 96) (97 -98 99 -100 101 -102)" universe="6" />
  <cell id="18" material="18" name="water" region="(-97 | 98 | -99 | 100 | -101 | 102) (103 -104 105 -106 107 -108)" universe="6" />
  <surface coeffs="-5.0" id="91" name="minimum x" type="x-plane" />
  <surface coeffs="5.0" id="92" name="maximum x" type="x-plane" />
  <surface coeffs="-5.0" id="93" name="minimum y" type="y-plane" />
  <surface coeffs="5.0" id="94" name="maximum y" type="y-plane" />
  <surface coeffs="-5.0" id="95" name="minimum z" type="z-plane" />
  <surface coeffs="5.0" id="96" name="maximum z" type="z-plane" />
  <surface coeffs="-6.0" id="97" name="minimum x" type="x-plane" />
  <surface coeffs="6.0" id="98" name="maximum x" type="x-plane" />
  <surface coeffs="-6.0" id="99" name="minimum y" type="y-plane" />
  <surface coeffs="6.0" id="100" name="maximum y" type="y-plane" />
  <surface coeffs="-6.0" id="101" name="minimum z" type="z-plane" />
  <surface coeffs="6.0" id="102" name="maximum z" type="z-plane" />
  <surface boundary="vacuum" coeffs="-15" id="103" name="minimum x" type="x-plane" />
  <surface boundary="vacuum" coeffs="15" id="104" name="maximum x" type="x-plane" />
  <surface boundary="vacuum" coeffs="-15" id="105" name="minimum y" type="y-plane" />
  <surface boundary="vacuum" coeffs="15" id="106" name="maximum y" type="y-plane" />
  <surface boundary="vacuum" coeffs="-15" id="107" name="minimum z" type="z-plane" />
  <surface boundary="vacuum" coeffs="15" id="108" name="maximum z" type="z-plane" />
</geometry>
<?xml version='1.0' encoding='utf-8'?>
<materials>
  <material depletable="true" id="16" name="fuel">
    <density units="g/cc" value="4.5" />
    <nuclide ao="1.0" name="U235" />
  </material>
  <material id="17" 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="18" name="water">
    <density units="atom/b-cm" value="0.07416" />
    <nuclide ao="2.0" name="H1" />
    <nuclide ao="1.0" name="O16" />
  </material>
</materials>
<?xml version='1.0' encoding='utf-8'?>
<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" />
      <theta type="discrete">
        <parameters>0.0 1.0</parameters>
      </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>
<?xml version='1.0' encoding='utf-8'?>
<tallies>
  <mesh id="11">
    <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="12" library="moab" type="unstructured">
    <filename>test_mesh_tets.exo</filename>
  </mesh>
  <filter id="11" type="mesh">
    <bins>11</bins>
  </filter>
  <filter id="12" type="mesh">
    <bins>12</bins>
  </filter>
  <tally id="11" name="regular mesh tally">
    <filters>11</filters>
    <scores>flux</scores>
    <estimator>tracklength</estimator>
  </tally>
  <tally id="12" name="unstructured mesh tally">
    <filters>12</filters>
    <scores>flux</scores>
    <estimator>tracklength</estimator>
  </tally>
</tallies>
