<?xml version='1.0' encoding='utf-8'?>
<geometry>
  <cell id="1" material="2" region="-1 -3 5" universe="0" />
  <cell id="2" material="1" region="-2 3" universe="0" />
  <cell id="3" material="1" region="-4 -3" universe="0" />
  <surface boundary="vacuum" coeffs="0.0 0.0 1.0" id="1" type="z-cylinder" />
  <surface boundary="vacuum" coeffs="0.0 0.0 5.0 1.0" id="2" type="sphere" />
  <surface coeffs="5.0" id="3" type="z-plane" />
  <surface boundary="vacuum" coeffs="0.0 0.0 -5.0 1.0" id="4" type="sphere" />
  <surface coeffs="-5.0" id="5" type="z-plane" />
</geometry>
<?xml version='1.0' encoding='utf-8'?>
<materials>
  <material id="1">
    <density units="g/cc" value="1.0" />
    <nuclide ao="2.0" name="H1" />
    <nuclide ao="1.0" name="O16" />
    <nuclide ao="0.0001" name="B10" />
    <sab name="c_H_in_H2O" />
  </material>
  <material depletable="true" id="2">
    <density units="g/cc" value="4.5" />
    <nuclide ao="1.0" name="U235" />
    <nuclide ao="0.1" name="Mo99" />
  </material>
</materials>
<?xml version='1.0' encoding='utf-8'?>
<settings>
  <run_mode>volume</run_mode>
  <volume_calc>
    <domain_type>cell</domain_type>
    <domain_ids>1 2 3</domain_ids>
    <samples>100000</samples>
    <lower_left>-1.0 -1.0 -6.0</lower_left>
    <upper_right>1.0 1.0 6.0</upper_right>
  </volume_calc>
  <volume_calc>
    <domain_type>material</domain_type>
    <domain_ids>1 2</domain_ids>
    <samples>100000</samples>
    <lower_left>-1.0 -1.0 -6.0</lower_left>
    <upper_right>1.0 1.0 6.0</upper_right>
  </volume_calc>
  <volume_calc>
    <domain_type>universe</domain_type>
    <domain_ids>0</domain_ids>
    <samples>100000</samples>
    <lower_left>-1.0 -1.0 -6.0</lower_left>
    <upper_right>1.0 1.0 6.0</upper_right>
  </volume_calc>
  <volume_calc>
    <domain_type>cell</domain_type>
    <domain_ids>1 2 3</domain_ids>
    <samples>100</samples>
    <lower_left>-1.0 -1.0 -6.0</lower_left>
    <upper_right>1.0 1.0 6.0</upper_right>
    <threshold threshold="0.1" type="std_dev" />
  </volume_calc>
  <volume_calc>
    <domain_type>material</domain_type>
    <domain_ids>1 2</domain_ids>
    <samples>100</samples>
    <lower_left>-1.0 -1.0 -6.0</lower_left>
    <upper_right>1.0 1.0 6.0</upper_right>
    <threshold threshold="0.1" type="rel_err" />
  </volume_calc>
  <volume_calc>
    <domain_type>cell</domain_type>
    <domain_ids>1 2 3</domain_ids>
    <samples>100</samples>
    <lower_left>-1.0 -1.0 -6.0</lower_left>
    <upper_right>1.0 1.0 6.0</upper_right>
    <threshold threshold="0.05" type="variance" />
  </volume_calc>
</settings>
