mex_imao_calculate.cc
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#include "mex_imao_calculate.hh"
#include <math.h>
namespace AMDA {
namespace Parameters {
Tab2DData<float> mex_imao_calculate(const Tab2DData<float>& Hsp, const std::vector<double>& Energy, const short& Pacc)
{
Tab2DData<float> lImaH(Hsp.getDim1Size(),96);
float samplingTime = 0.1209;
float Geff;
for(int i = 0; i < Hsp.getDim1Size(); ++i) { // Different elevations number
std::vector<float> imaHVector = Hsp[i];
for (unsigned int iEn = 0; iEn < 96; iEn++) {// 96 Energy Steps
(lImaH[i])[iEn] = 0.0;
if ((float)Energy[iEn] > 0.0 && imaHVector[iEn] > 0.0)
{
Geff = gfl(Pacc, (float)Energy[iEn]);
float coeff = 0.0;
if (Geff > 0.0)
coeff = 1.0/(Geff * (float)Energy[iEn] * samplingTime);
(lImaH[i])[iEn] = (imaHVector[iEn]*coeff);
}
}
}
return lImaH;
}
/*
* Calculate GeometricFactor for MEX / IMA / HEAVY IONS
*/
float gfl(const short Pacc, const float Energy)
{
float Gl = -1.0;
switch ( Pacc ) {
case 0:
Gl = exp(-0.378481*log(Energy) - 9.05248);
break;
case 4:
if (Energy < 300.0)
Gl = 7.0e-5;
else
Gl = exp(-0.69*log(Energy) - 5.63);
break;
case 7:
if (Energy < 600.0)
Gl = 1.0e-4;
else
Gl = exp(-0.611844*log(Energy) -5.31592);
break;
default:
Gl = -1.0;
break;
}
return Gl;
}
}
}