function xs = getXS()

%core
xs(1) = struct('sigTr',  [2.23775E-01 1.03864E+00], ... 
               'sigA',   [8.52700E-03 1.58201E-01], ...
               'sigF',   [3.95356E-03 1.26167E-01], ...
               'nuBar',   2.3, ...
               'sigS',   [1.92423E-01 0.00000E+00; ...
                          2.28253E-02 8.80439E-01]);

% reflector
xs(2) = struct('sigTr',  [2.50367E-01 1.64482E+00],  ...
               'sigA',   [4.16800E-04 2.03000E-02], ...
               'sigF',   [0.00000E+00 0.00000E+00], ...
               'nuBar',   0.0, ...
               'sigS',   [1.93446E-01 0.00000E+00; ...
                          5.65042E-02 1.62452E+00]);

% control rod
xs(3) = struct('sigTr',  [8.52325E-02 2.17460E-01], ...
               'sigA',   [1.74439E-02 1.82224E-01], ...
               'sigF',   [0.00000E+00 0.00000E+00], ...
               'nuBar',   0.0, ...
               'sigS',   [0.067724065252800 0.00000E+00; ...
                          0.000064546067896 3.52358E-02]);


end

