main()
{
page pg;
FeynDiagram fd(pg);
xy e1(-10,0), e2(10,0), arcpt(0,4);
vertex_circlecross v1(fd,-4,0), v2(fd,4,0);
line_plain f1(fd,e1,v1), f2(fd,v1,v2), f3(fd,v2,e2);
line_wiggle photon1(fd,v1,v2), photon2(fd,v1,v2);
photon1.arcthru(arcpt);
photon1.dashon.settrue();
photon2.arcthru(0,-2);
photon2.width.scale(0.7);
pg.output();
return 0;
}
int main(){
/////// Setting begins
string AbsorptionModel="Fry"; //"Fry" for fry.dat or "SuperK" for superk.dat
bool include_undiffract=true; //include un undiffracted photon as reference or not
double photonStep=1.; //in meter
double initialT=0.0; //in ns
double initialX=0.0; //in meter
double initialZ=0.0; //in meter
double TankDiameter=50.; //in meter
double TankHeight=60.; //in meter
// For the test photon
bool absorption=true; //apply absorption of photon or not
bool rayleigh=true; //apply rayleigh scattering or not
bool tempGradient=true; //apply temperature gradient or not, if not Temp=TempTop
bool presGradient=true; //apply pressure gradient or not, if not Pressure=PressureTop
double wavelength; //please define in the for-loop
double TempTop=273.15+15.; //in Kelvin
double TempBottom=273.15+5.; //in Kelvin
double PressureTop=101325.; //in Pa
// For the reference photon only
bool ref_absorption=false;
bool ref_rayleigh=false;
bool ref_tempGradient=false;
bool ref_presGradient=false;
double ref_wavelength=380.; //fixed wavelength
double ref_TempTop=273.15+10.; //in Kelvin
double ref_TempBottom=275.15+10.; //in Kelvin
double ref_PressureTop=101325.+1000.*9.8*30.; //in Pa, though named Top, the reference photon is living at this pressure
/////// Setting Ends
int number_absorbed=0;
// Open output file
FILE * outputfile;
outputfile = fopen("output.dat","w");
if (include_undiffract) {
fprintf(outputfile,"# theta wavelength deltaX deltaZ deltaT deltaD X1(no diffract) Z1 T1 X2(has diffract) Z2 T2 lambda scatter\n");
}
else{
fprintf(outputfile,"# theta wavelength X2(has diffract) Z2 T2 lambda\n");
}
// Do the iteration of theta, ranging from -pi/2 to pi/2
for (int i=500;i<=500;i++) //iteration of angle
{
for (int j=0;j<1000;j++) //iteration of photon
{
double initialTheta=-PI/2.+PI*i/1000.;
////////////////Select how wavelength is generated///////////////
wavelength=Spectrum(); //
// wavelength=380.; //
// wavelength=Gaussian(); //
/////////////////////////////////////////////////////////////////
cout<<endl;
cout<<"*******************************************"<<endl;
cout<<"InitialTheta="<<initialTheta/PI<<" PI"<<endl;
cout<<"InitialX="<<initialX<<"m"<<endl;
cout<<"InitialZ="<<initialZ<<"m"<<endl;
cout<<"Test Photon Wavelength="<<wavelength<<" nanometer"<<endl;
cout<<"Step="<<photonStep<<"m"<<endl;
cout<<"*******************************************"<<endl;
//
//Run the test photon
//
SingleRay photon2(photonStep,initialT,initialX,initialZ,wavelength,initialTheta,\
TempTop,TempBottom,PressureTop,TankDiameter,TankHeight,\
absorption,rayleigh,tempGradient,presGradient,AbsorptionModel);
//photon2 stores the data of a diffracted ray
photon2.WithDiffract();
if (photon2.absorbed) { //photon absorbed
number_absorbed++; //record number of absorbed photons
continue; //run the next photon
}
cout << "WithDiffract: x="<<photon2.x<<", z="<<photon2.z<<", t="<<photon2.t<<endl;
if (!include_undiffract) {
fprintf (outputfile, "%3.3f %3.3f %3.5f %3.5f %3.5f %3.5f \n",\
initialTheta/PI,wavelength,\
photon2.x,photon2.z,photon2.t,photon2.lambda);
}
//
//Run an undiffracted photon for reference
//
double deltaX,deltaZ,deltaT,deltaD;
if(include_undiffract){
SingleRay photon1(photonStep,initialT,initialX,initialZ,ref_wavelength,initialTheta, \
ref_TempTop,ref_TempBottom,ref_PressureTop,TankDiameter,TankHeight, \
ref_absorption,ref_rayleigh,ref_tempGradient,ref_presGradient,AbsorptionModel);
// photon1 stores the data of an undiffracted ray
photon1.WithoutDiffract();
cout << "WithoutDiffract: x="<<photon1.x<<", z="<<photon1.z<<", t="<<photon1.t<<endl;
// Calculate the difference in x,z and t
deltaX=photon2.x-photon1.x;
deltaZ=photon2.z-photon1.z;
deltaT=photon2.t-photon1.t;
cout << "deltaX="<<deltaX<<"m, deltaZ="<<deltaZ<<"m, deltaT="<<deltaT<<"ns"<<endl;
// Calculate sqrt(x^2+z^2)
deltaD=sqrt(deltaX*deltaX+deltaZ*deltaZ);
//Output to data to file
fprintf (outputfile, "%3.3f %3.3f %3.5f %3.5f %3.5f %3.5f %3.5f %3.5f %3.5f %3.5f %3.5f %3.5f %3.3f %d\n",\
initialTheta/PI,wavelength,deltaX,deltaZ,\
deltaT,deltaD,photon1.x,photon1.z,\
photon1.t,photon2.x,photon2.z,photon2.t,
photon2.lambda,photon2.scattered);
}
}
}
fclose(outputfile);
cout << "Number of absorbed photons: "<< number_absorbed <<endl;
}
