test_physics.cpp 3.55 KB
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#include "catch.hpp"
#include "common/globalconstants.h"
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#include "toolboxes/physics.h"
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TEST_CASE( "stopping power computation is equal to ESTAR database", "[physics]" ) {
    /* not working yet
    Vector energies{ 1.000E-02, 1.250E-02, 1.500E-02, 1.750E-02, 2.000E-02, 2.500E-02, 3.000E-02, 3.500E-02, 4.000E-02, 4.500E-02, 5.000E-02,
                     5.500E-02, 6.000E-02, 7.000E-02, 8.000E-02, 9.000E-02, 1.000E-01, 1.250E-01, 1.500E-01, 1.750E-01, 2.000E-01, 2.500E-01,
                     3.000E-01, 3.500E-01, 4.000E-01, 4.500E-01, 5.000E-01, 5.500E-01, 6.000E-01, 7.000E-01, 8.000E-01, 9.000E-01, 1.000E+00,
                     1.250E+00, 1.500E+00, 1.750E+00, 2.000E+00, 2.500E+00, 3.000E+00, 3.500E+00, 4.000E+00, 4.500E+00, 5.000E+00, 5.500E+00,
                     6.000E+00, 7.000E+00, 8.000E+00, 9.000E+00, 1.000E+01, 1.250E+01, 1.500E+01, 1.750E+01, 2.000E+01, 2.500E+01, 3.000E+01,
                     3.500E+01, 4.000E+01, 4.500E+01, 5.000E+01, 5.500E+01, 6.000E+01, 7.000E+01, 8.000E+01, 9.000E+01, 1.000E+02, 1.250E+02,
                     1.500E+02, 1.750E+02, 2.000E+02, 2.500E+02, 3.000E+02, 3.500E+02, 4.000E+02, 4.500E+02, 5.000E+02, 5.500E+02, 6.000E+02,
                     7.000E+02, 8.000E+02, 9.000E+02, 1.000E+03 };    // MeV

    Vector S_ESTAR{ 2.255E+01, 1.896E+01, 1.646E+01, 1.460E+01, 1.317E+01, 1.109E+01, 9.651E+00, 8.591E+00, 7.776E+00, 7.129E+00, 6.603E+00,
                    6.166E+00, 5.797E+00, 5.208E+00, 4.759E+00, 4.404E+00, 4.117E+00, 3.594E+00, 3.240E+00, 2.987E+00, 2.796E+00, 2.532E+00,
                    2.359E+00, 2.240E+00, 2.153E+00, 2.089E+00, 2.040E+00, 2.002E+00, 1.971E+00, 1.926E+00, 1.896E+00, 1.875E+00, 1.862E+00,
                    1.844E+00, 1.841E+00, 1.844E+00, 1.850E+00, 1.868E+00, 1.889E+00, 1.910E+00, 1.931E+00, 1.951E+00, 1.971E+00, 1.991E+00,
                    2.010E+00, 2.047E+00, 2.082E+00, 2.116E+00, 2.149E+00, 2.230E+00, 2.307E+00, 2.381E+00, 2.455E+00, 2.598E+00, 2.738E+00,
                    2.876E+00, 3.013E+00, 3.150E+00, 3.286E+00, 3.421E+00, 3.557E+00, 3.827E+00, 4.097E+00, 4.367E+00, 4.636E+00, 5.311E+00,
                    5.987E+00, 6.664E+00, 7.341E+00, 8.698E+00, 1.006E+01, 1.142E+01, 1.278E+01, 1.415E+01, 1.551E+01, 1.688E+01, 1.824E+01,
                    2.098E+01, 2.371E+01, 2.645E+01, 2.919E+01 };    // MeV cm2 / g

    Physics phys( "../tests/input/ENDL_H.txt", "../tests/input/ENDL_O.txt" );
    Vector S = phys.ComputeStoppingPower( energies );

    for( unsigned i = 0; i < energies.size(); ++i ) {
        S_ESTAR[i] *= H2OMassDensity;
    }

    for( unsigned i = 0; i < energies.size(); ++i ) {
        REQUIRE( std::fabs( S[i] - S_ESTAR[i] ) / std::fabs( S_ESTAR[i] ) < 0.1 );
    }
    */
    REQUIRE( true );
}

TEST_CASE( "checking angular integral of scattering cross sections to be unity", "[physics]" ) {
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    /*
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    Physics phys( "../tests/input/ENDL_H.txt", "../tests/input/ENDL_O.txt" );
    Vector energies{ 1.000E-05, 1.000E-04, 1.000E-03, 1.000E-02, 1.000E-01, 1.000E-00, 1.000E+01, 1.000E+02, 1.000E+03, 1.000E+04, 1.000E+05 };
    Vector angles = blaze::linspace( 100u, -1, 1 );

    VectorVector sXS = phys.GetScatteringXS( energies, angles );
    Vector tXS       = phys.GetTotalXSE( energies );

    Vector integral_sXS( energies.size(), 0.0 );
    for( unsigned e = 0; e < energies.size(); ++e ) {
        for( unsigned a = 1; a < angles.size(); ++a ) {
            integral_sXS[e] += 0.5 * ( angles[a] - angles[a - 1] ) * ( sXS[e][a] + sXS[e][a - 1] );
        }
        REQUIRE( std::fabs( integral_sXS[e] - tXS[e] ) / std::fabs( tXS[e] ) < 0.05 );
    }
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    */
    REQUIRE( true );
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}