#ifdef __CINT__ void Opticals() { gROOT->Reset(); #endif int i; const Int_t kNbins=26; Float_t aPckov[kNbins]; for(i=0;iDivide(2,2); pC->cd(1); TGraph *pAbsFreonGr=new TGraph(kNbins,aPckov,aAbsFreon); pAbsFreonGr->SetMarkerStyle(kFreonMarker); pAbsFreonGr->SetMarkerColor(kFreonColor); TGraph *pAbsSiO2Gr=new TGraph(kNbins,aPckov,aAbsQuartz); pAbsSiO2Gr->SetMarkerStyle(kSiO2Marker); pAbsSiO2Gr->SetMarkerColor(kSiO2Color); TMultiGraph *pAbsMG=new TMultiGraph(); TLegend *pAbsLegend=new TLegend(0.6,0.3,0.85,0.5); pAbsMG->Add(pAbsFreonGr); pAbsLegend->AddEntry(pAbsFreonGr, "freon","p"); //1 pAbsMG->Add(pAbsSiO2Gr); pAbsLegend->AddEntry(pAbsSiO2Gr, "quartz","p"); //2 pAbsMG->Draw("APL"); pAbsMG->GetXaxis()->SetTitle("energy, GeV"); pAbsMG->GetYaxis()->SetTitle("absorption length, cm"); pAbsMG->Draw("APL"); pAbsLegend->Draw(); pC->cd(2); TGraph *pIndexFreonGr=new TGraph(kNbins,aPckov,aIndexFreon); pIndexFreonGr->SetMarkerStyle(kFreonMarker); pIndexFreonGr->SetMarkerColor(kFreonColor); TGraph *pIndexSiO2Gr=new TGraph(kNbins,aPckov,aIndexQuartz); pIndexSiO2Gr->SetMarkerStyle(kSiO2Marker); pIndexSiO2Gr->SetMarkerColor(kSiO2Color); TGraph *pIndexCH4Gr=new TGraph(kNbins,aPckov,aIndexCH4); pIndexCH4Gr->SetMarkerStyle(kCH4Marker); pIndexCH4Gr->SetMarkerColor(kCH4Color); TMultiGraph *pIndexMG=new TMultiGraph(); TLegend *pIndexLegend=new TLegend(0.6,0.2,0.85,0.4); pIndexMG->Add(pIndexFreonGr); pIndexLegend->AddEntry(pIndexFreonGr, "freon","p"); //1 pIndexMG->Add(pIndexSiO2Gr); pIndexLegend->AddEntry(pIndexSiO2Gr, "quartz","p"); pIndexMG->Add(pIndexCH4Gr); pIndexLegend->AddEntry(pIndexCH4Gr, "CH4","p"); pIndexMG->Draw("APL"); pIndexMG->GetXaxis()->SetTitle("energy, GeV"); pIndexMG->GetYaxis()->SetTitle("refraction index"); pIndexMG->Draw("APL"); pIndexLegend->Draw(); pC->cd(3); TGraph *pAbsCH4Gr=new TGraph(kNbins,aPckov,aAbsCH4); pAbsCH4Gr->SetMarkerStyle(kCH4Marker); pAbsCH4Gr->SetMarkerColor(kCH4Color); pAbsCH4Gr->Draw("APL"); pAbsCH4Gr->GetXaxis()->SetTitle("energy, GeV"); pAbsCH4Gr->SetTitle("CH4 absorption length, cm"); pAbsCH4Gr->Draw("APL"); TCanvas *pQeC=new TCanvas("pQeC","CsI QE currently all the same",800,900); pQeC->Divide(2,4); for(int i=1;i<=7;i++){ pQeC->cd(i); switch(i){ case 1: TGraph *pQeCsIGr=new TGraph(kNbins,aPckov,aQeCsI1);pQeCsIGr->SetTitle("Module 1");break; case 2: TGraph *pQeCsIGr=new TGraph(kNbins,aPckov,aQeCsI2);pQeCsIGr->SetTitle("Module 2");break; case 3: TGraph *pQeCsIGr=new TGraph(kNbins,aPckov,aQeCsI3);pQeCsIGr->SetTitle("Module 3");break; case 4: TGraph *pQeCsIGr=new TGraph(kNbins,aPckov,aQeCsI4);pQeCsIGr->SetTitle("Module 4");break; case 5: TGraph *pQeCsIGr=new TGraph(kNbins,aPckov,aQeCsI5);pQeCsIGr->SetTitle("Module 5");break; case 6: TGraph *pQeCsIGr=new TGraph(kNbins,aPckov,aQeCsI6);pQeCsIGr->SetTitle("Module 6");break; case 7: TGraph *pQeCsIGr=new TGraph(kNbins,aPckov,aQeCsI7);pQeCsIGr->SetTitle("Module 7");break; } pQeCsIGr->SetMarkerStyle(kCsIMarker); pQeCsIGr->SetMarkerColor(kCsIColor); pQeCsIGr->Draw("APL"); pQeCsIGr->GetXaxis()->SetTitle("energy, GeV"); pQeCsIGr->Draw("APL"); } }//main Float_t AbsoCH4(Float_t x) { //KLOSCH,SCH4(9),WL(9),EM(9),ALENGTH(31) Float_t sch4[9] = {.12,.16,.23,.38,.86,2.8,7.9,28.,80.}; //MB X 10^22 //Float_t wl[9] = {153.,152.,151.,150.,149.,148.,147.,146.,145}; Float_t em[9] = {8.1,8.158,8.212,8.267,8.322,8.378,8.435,8.493,8.55}; const Float_t kLosch=2.686763E19; // LOSCHMIDT NUMBER IN CM-3 const Float_t kIgas1=100, kIgas2=0, kOxy=10., kWater=5., kPressure=750.,kTemperature=283.; Float_t pn=kPressure/760.; Float_t tn=kTemperature/273.16; // ------- METHANE CROSS SECTION ----------------- // ASTROPH. J. 214, L47 (1978) Float_t sm=0; if (x<7.75) sm=.06e-22; if(x>=7.75 && x<=8.1) { Float_t c0=-1.655279e-1; Float_t c1=6.307392e-2; Float_t c2=-8.011441e-3; Float_t c3=3.392126e-4; sm=(c0+c1*x+c2*x*x+c3*x*x*x)*1.e-18; } if (x> 8.1) { Int_t j=0; while (x<=em[j] && x>=em[j+1]) { j++; Float_t a=(sch4[j+1]-sch4[j])/(em[j+1]-em[j]); sm=(sch4[j]+a*(x-em[j]))*1e-22; } } Float_t dm=(kIgas1/100.)*(1.-((kOxy+kWater)/1.e6))*kLosch*pn/tn; Float_t abslm=1./sm/dm; // ------- ISOBUTHANE CROSS SECTION -------------- // i-C4H10 (ai) abs. length from curves in // Lu-McDonald paper for BARI RICH workshop . // ----------------------------------------------------------- Float_t ai; Float_t absli; if (kIgas2 != 0) { if (x<7.25) ai=100000000.; if(x>=7.25 && x<7.375) ai=24.3; if(x>=7.375) ai=.0000000001; Float_t si = 1./(ai*kLosch*273.16/293.); // ISOB. CRO.SEC.IN CM2 Float_t di=(kIgas2/100.)*(1.-((kOxy+kWater)/1.e6))*kLosch*pn/tn; absli =1./si/di; } else absli=1.e18; // --------------------------------------------------------- // // transmission of O2 // // y= path in cm, x=energy in eV // so= cross section for UV absorption in cm2 // do= O2 molecular density in cm-3 // --------------------------------------------------------- Float_t abslo; Float_t so=0; if(x>=6.0) { if(x>=6.0 && x<6.5) { so=3.392709e-13 * TMath::Exp(2.864104 *x); so=so*1e-18; } if(x>=6.5 && x<7.0) { so=2.910039e-34 * TMath::Exp(10.3337*x); so=so*1e-18; } if (x>=7.0) { Float_t a0=-73770.76; Float_t a1=46190.69; Float_t a2=-11475.44; Float_t a3=1412.611; Float_t a4=-86.07027; Float_t a5=2.074234; so= a0+(a1*x)+(a2*x*x)+(a3*x*x*x)+(a4*x*x*x*x)+(a5*x*x*x*x*x); so=so*1e-18; } Float_t dox=(kOxy/1e6)*kLosch*pn/tn; abslo=1./so/dox; } else abslo=1.e18; // --------------------------------------------------------- // // transmission of H2O // // y= path in cm, x=energy in eV // sw= cross section for UV absorption in cm2 // dw= H2O molecular density in cm-3 // --------------------------------------------------------- Float_t abslw; Float_t b0=29231.65; Float_t b1=-15807.74; Float_t b2=3192.926; Float_t b3=-285.4809; Float_t b4=9.533944; if(x>6.75) { Float_t sw= b0+(b1*x)+(b2*x*x)+(b3*x*x*x)+(b4*x*x*x*x); sw=sw*1e-18; Float_t dw=(kWater/1e6)*kLosch*pn/tn; abslw=1./sw/dw; } else abslw=1.e18; // --------------------------------------------------------- Float_t alength=1./(1./abslm+1./absli+1./abslo+1./abslw); return (alength); }//AbsoCH4 Float_t Fresnel(Float_t ene,Float_t pdoti, Bool_t pola) { //ENE(EV), PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.) Float_t en[36] = {5.0,5.1,5.2,5.3,5.4,5.5,5.6,5.7,5.8,5.9,6.0,6.1,6.2, 6.3,6.4,6.5,6.6,6.7,6.8,6.9,7.0,7.1,7.2,7.3,7.4,7.5,7.6,7.7, 7.8,7.9,8.0,8.1,8.2,8.3,8.4,8.5}; Float_t csin[36] = {2.14,2.21,2.33,2.48,2.76,2.97,2.99,2.59,2.81,3.05, 2.86,2.53,2.55,2.66,2.79,2.96,3.18,3.05,2.84,2.81,2.38,2.11, 2.01,2.13,2.39,2.73,3.08,3.15,2.95,2.73,2.56,2.41,2.12,1.95, 1.72,1.53}; Float_t csik[36] = {0.,0.,0.,0.,0.,0.196,0.408,0.208,0.118,0.49,0.784,0.543, 0.424,0.404,0.371,0.514,0.922,1.102,1.139,1.376,1.461,1.253,0.878, 0.69,0.612,0.649,0.824,1.347,1.571,1.678,1.763,1.857,1.824,1.824, 1.714,1.498}; Float_t xe=ene; Int_t j=Int_t(xe*10)-49; Float_t cn=csin[j]+((csin[j+1]-csin[j])/0.1)*(xe-en[j]); Float_t ck=csik[j]+((csik[j+1]-csik[j])/0.1)*(xe-en[j]); //FORMULAE FROM HANDBOOK OF OPTICS, 33.23 OR //W.R. HUNTER, J.O.S.A. 54 (1964),15 , J.O.S.A. 55(1965),1197 Float_t sinin=TMath::Sqrt(1-pdoti*pdoti); Float_t tanin=sinin/pdoti; Float_t c1=cn*cn-ck*ck-sinin*sinin; Float_t c2=4*cn*cn*ck*ck; Float_t aO=TMath::Sqrt(0.5*(TMath::Sqrt(c1*c1+c2)+c1)); Float_t b2=0.5*(TMath::Sqrt(c1*c1+c2)-c1); Float_t rs=((aO-pdoti)*(aO-pdoti)+b2)/((aO+pdoti)*(aO+pdoti)+b2); Float_t rp=rs*((aO-sinin*tanin)*(aO-sinin*tanin)+b2)/((aO+sinin*tanin)*(aO+sinin*tanin)+b2); //CORRECTION FACTOR FOR SURFACE ROUGHNESS //B.J. STAGG APPLIED OPTICS, 30(1991),4113 Float_t sigraf=18.; Float_t lamb=1240/ene; Float_t fresn; Float_t rO=TMath::Exp(-(4*TMath::Pi()*pdoti*sigraf/lamb)*(4*TMath::Pi()*pdoti*sigraf/lamb)); if(pola) { Float_t pdotr=0.8; //DEGREE OF POLARIZATION : 1->P , -1->S fresn=0.5*(rp*(1+pdotr)+rs*(1-pdotr)); } else fresn=0.5*(rp+rs); fresn = fresn*rO; return(fresn); }//Fresnel(...) #endif