<?xml version='1.0' encoding='utf-8'?>
<geometry>
  <cell id="1" material="1" region="1 -2 3 -4 10 -9" universe="1" />
  <cell id="2" material="2" region="~(1 -2 3 -4) (5 -6 7 -8) 10 -9" universe="1" />
  <surface coeffs="-5.0" id="1" name="minimum x" type="x-plane" />
  <surface coeffs="5.0" id="2" name="maximum x" type="x-plane" />
  <surface coeffs="-5.0" id="3" name="minimum y" type="y-plane" />
  <surface coeffs="5.0" id="4" name="maximum y" type="y-plane" />
  <surface boundary="reflective" coeffs="-10.0" id="5" name="minimum x" type="x-plane" />
  <surface boundary="reflective" coeffs="10.0" id="6" name="maximum x" type="x-plane" />
  <surface boundary="reflective" coeffs="-10.0" id="7" name="minimum y" type="y-plane" />
  <surface boundary="reflective" coeffs="10.0" id="8" name="maximum y" type="y-plane" />
  <surface boundary="vacuum" coeffs="10.0" id="9" type="z-plane" />
  <surface boundary="vacuum" coeffs="-10.0" id="10" type="z-plane" />
</geometry>
<?xml version='1.0' encoding='utf-8'?>
<materials>
  <material depletable="true" id="1">
    <density units="g/cm3" value="10.0" />
    <nuclide ao="1.0" name="U235" />
  </material>
  <material id="2">
    <density units="g/cm3" value="1.0" />
    <nuclide ao="1.0" name="Zr90" />
  </material>
</materials>
<?xml version='1.0' encoding='utf-8'?>
<settings>
  <run_mode>eigenvalue</run_mode>
  <particles>1000</particles>
  <batches>5</batches>
  <inactive>0</inactive>
</settings>
<?xml version='1.0' encoding='utf-8'?>
<tallies>
  <mesh id="1">
    <dimension>3 4 5</dimension>
    <lower_left>-9 -9 -9</lower_left>
    <upper_right>9 9 9</upper_right>
  </mesh>
  <mesh id="2" type="rectilinear">
    <x_grid>-9.0 0.0 9.0</x_grid>
    <y_grid>-9.0 -3.0 3.0 9.0</y_grid>
    <z_grid>-9.0 -4.5 0.0 4.5 9.0</z_grid>
  </mesh>
  <mesh id="3">
    <dimension>3 4 5</dimension>
    <lower_left>-19 -4 -9</lower_left>
    <upper_right>-1 14 9</upper_right>
  </mesh>
  <mesh id="4" type="rectilinear">
    <x_grid>-19.0 -10.0 -1.0</x_grid>
    <y_grid>-4.0 2.0 8.0 14.0</y_grid>
    <z_grid>-9.0 -4.5 0.0 4.5 9.0</z_grid>
  </mesh>
  <filter id="1" type="mesh">
    <bins>1</bins>
  </filter>
  <filter id="2" type="mesh">
    <bins>2</bins>
  </filter>
  <filter id="3" translation="10 -5 0" type="mesh">
    <bins>3</bins>
  </filter>
  <filter id="4" translation="10 -5 0" type="mesh">
    <bins>4</bins>
  </filter>
  <tally id="1">
    <filters>1</filters>
    <scores>total</scores>
  </tally>
  <tally id="2">
    <filters>2</filters>
    <scores>total</scores>
  </tally>
  <tally id="3">
    <filters>3</filters>
    <scores>total</scores>
  </tally>
  <tally id="4">
    <filters>4</filters>
    <scores>total</scores>
  </tally>
</tallies>
