/************************************************************************** * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * * SigmaEffect_thetadegrees * * Author: The ALICE Off-line Project. * * Contributors are mentioned in the code where appropriate. * * * * Permission to use, copy, modify and distribute this software and its * * documentation strictly for non-commercial purposes is hereby granted * * without fee, provided that the above copyright notice appears in all * * copies and that both the copyright notice and this permission notice * * appear in the supporting documentation. The authors make no claims * * about the suitability of this software for any purpeateose. It is * * provided "as is" without express or implied warranty. * **************************************************************************/ // $Id$ //----------------------------------------------------------------------------- // Class AliMUONCommonGeometryBuilder // ---------------------------------- // Geometry construction common to all stations // (material definition). // separated from AliMUONGeometryBuilder //----------------------------------------------------------------------------- #include #include #include "AliMUONCommonGeometryBuilder.h" #include "AliMUON.h" #include "AliMagF.h" #include "AliRun.h" #include "AliLog.h" /// \cond CLASSIMP ClassImp(AliMUONCommonGeometryBuilder) /// \endcond //______________________________________________________________________________//___________________________________________ AliMUONCommonGeometryBuilder::AliMUONCommonGeometryBuilder(AliMUON* muon) : AliMUONVGeometryBuilder(-1, 0), fMUON(muon) { /// Standard constructor } //______________________________________________________________________________//___________________________________________ AliMUONCommonGeometryBuilder::AliMUONCommonGeometryBuilder() : AliMUONVGeometryBuilder(), fMUON(0) { /// Default constructor } //______________________________________________________________________________ AliMUONCommonGeometryBuilder::~AliMUONCommonGeometryBuilder() { /// Destructor } // // public functions // //_____________________________________________________________________________ void AliMUONCommonGeometryBuilder::CreateMaterials() { /// Definition of common materials // // Ar-CO2 gas (80%+20%) Float_t ag1[3] = { 39.95,12.01,16. }; Float_t zg1[3] = { 18.,6.,8. }; Float_t wg1[3] = { .8,.0667,.13333 }; Float_t dg1 = .001821; // // Ar-buthane-freon gas -- trigger chambers Float_t atr1[4] = { 39.95,12.01,1.01,19. }; Float_t ztr1[4] = { 18.,6.,1.,9. }; Float_t wtr1[4] = { .56,.1262857,.2857143,.028 }; Float_t dtr1 = .002599; // // Ar-CO2 gas Float_t agas[3] = { 39.95,12.01,16. }; Float_t zgas[3] = { 18.,6.,8. }; Float_t wgas[3] = { .74,.086684,.173316 }; Float_t dgas = .0018327; // // Ar-Isobutane gas (80%+20%) -- tracking Float_t ag[3] = { 39.95,12.01,1.01 }; Float_t zg[3] = { 18.,6.,1. }; Float_t wg[3] = { .8,.057,.143 }; Float_t dg = .0019596; // // Ar-Isobutane-Forane-SF6 gas (49%+7%+40%+4%) -- trigger Float_t atrig[5] = { 39.95,12.01,1.01,19.,32.066 }; Float_t ztrig[5] = { 18.,6.,1.,9.,16. }; Float_t wtrig[5] = { .49,1.08,1.5,1.84,0.04 }; Float_t dtrig = .0031463; // // bakelite: C6 H6 O Float_t abak[3] = {12.01 , 1.01 , 16.}; Float_t zbak[3] = {6. , 1. , 8.}; Float_t wbak[3] = {6. , 6. , 1.}; Float_t dbak = 1.4; Int_t iSXFLD = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->PrecInteg(); Float_t sXMGMX = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max(); // // --- Define the various materials for GEANT --- fMUON->AliMaterial(9, "ALUMINIUM0$", 26.98, 13., 2.7, 8.9, 37.2); fMUON->AliMaterial(10, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2); fMUON->AliMaterial(49, "Kapton$", 12.01,6,1.42,-28.6,999); // from DPG fMUON->AliMaterial(42, "Copper$", 63.546,29.,8.96,-1.43,9.6); //fMUON->AliMaterial(43, "FR4$", 17.749, 8.875, 1.7, -19.4, 999.); // from DPG Float_t aFR[4] = {16.0, 28.09, 12.011, 1.00794} ; Float_t zFR[4] = {8.0, 14.0, 6.0, 1.0} ; Float_t wFR[4] = {292.0, 68.0, 462.0, 736.0} ; Float_t dFR = 1.8 ; fMUON->AliMixture(43, "FR4$", aFR, zFR, dFR, -4, wFR); fMUON->AliMaterial(44, "FrameEpoxy",12.24,6.0,1.85,-19.14,999);// use 16.75cm // Air Float_t aAir[4]={12.0107,14.0067,15.9994,39.948}; Float_t zAir[4]={6.,7.,8.,18.}; Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827}; Float_t dAir = 1.20479E-3; fMUON->AliMixture(15, "AIR$ ", aAir, zAir, dAir,4, wAir); // fMUON->AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500); fMUON->AliMixture(19, "Bakelite$", abak, zbak, dbak, -3, wbak); fMUON->AliMixture(20, "ArC4H10 GAS$", ag, zg, dg, 3, wg); fMUON->AliMixture(21, "TRIG GAS$", atrig, ztrig, dtrig, -5, wtrig); fMUON->AliMixture(22, "ArCO2 80%$", ag1, zg1, dg1, 3, wg1); fMUON->AliMixture(23, "Ar-freon $", atr1, ztr1, dtr1, 4, wtr1); fMUON->AliMixture(24, "ArCO2 GAS$", agas, zgas, dgas, 3, wgas); // materials for slat: // Sensitive area: gas (already defined) // PCB: copper // insulating material: vetronite -> replacing by G10 Ch. Finck // spacer: noryl Ch. Finck // panel sandwich: carbon, nomex, carbon replacing rohacell by nomex Ch. Finck // G10: SiO2(60%) + C8H14O4(40%) Float_t aglass[5] = {12.01, 28.09, 16., 1.01, 16.}; Float_t zglass[5] = { 6., 14., 8., 1., 8.}; Float_t wglass[5] = { 0.22, 0.28, 0.32, 0.03, 0.15}; Float_t dglass = 1.7; // rohacell: C9 H13 N1 O2 Float_t arohac[4] = {12.01, 1.01, 14.010, 16.}; Float_t zrohac[4] = { 6., 1., 7., 8.}; Float_t wrohac[4] = { 9., 13., 1., 2.}; Float_t drohac = 0.03; // Nomex: C22 H10 N2 O5 Float_t aNomex[4] = {12.01, 1.01, 14.010, 16.}; Float_t zNomex[4] = { 6., 1., 7., 8.}; Float_t wNomex[4] = { 22., 10., 2., 5.}; Float_t dNomex = 0.024; //honey comb Float_t dNomex2 = 1.43; //bulk material // Noryl: C8 H8 O polyphenylene oxyde (di-methyl not sure) Float_t aNoryl[3] = {12.01, 1.01, 16.}; Float_t zNoryl[3] = { 6., 1., 8.}; Float_t wNoryl[3] = { 8., 8., 1.}; Float_t dNoryl = 1.06; fMUON->AliMaterial(31, "COPPER$", 63.54, 29., 8.96, 1.4, 0.); fMUON->AliMixture( 32, "G10$", aglass, zglass, dglass, -5, wglass); fMUON->AliMaterial(33, "Carbon$", 12.01, 6., 2.265, 18.8, 49.9); fMUON->AliMixture( 34, "Rohacell$", arohac, zrohac, drohac, -4, wrohac); fMUON->AliMixture( 35, "Nomex$", aNomex, zNomex, dNomex, -4, wNomex); fMUON->AliMixture( 36, "Noryl$", aNoryl, zNoryl, dNoryl, -3, wNoryl); fMUON->AliMixture( 37, "Nomex_bulk$",aNomex, zNomex, dNomex2, -4, wNomex); Float_t epsil = .001; // Tracking precision, Float_t stemax = -1.; // Maximum displacement for multiple scat Float_t tmaxfd = -20.; // Maximum angle due to field deflection Float_t deemax = -.3; // Maximum fractional energy loss, DLS Float_t stmin = -.8; Float_t maxDestepAlu = fMUON->GetMaxDestepAlu(); Float_t maxDestepGas = fMUON->GetMaxDestepGas(); Float_t maxStepAlu = fMUON->GetMaxStepAlu(); Float_t maxStepGas = fMUON->GetMaxStepGas(); // // Air fMUON->AliMedium(1, "AIR_CH_US ", 15, 1, iSXFLD, sXMGMX, tmaxfd, stemax, deemax, epsil, stmin); // // Aluminum fMUON->AliMedium(4, "ALU_CH_US0 ", 9, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, maxDestepAlu, epsil, stmin); fMUON->AliMedium(5, "ALU_CH_US1 ", 10, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, maxDestepAlu, epsil, stmin); // // Ar-isoC4H10 gas fMUON->AliMedium(6, "AR_CH_US ", 20, 1, iSXFLD, sXMGMX, tmaxfd, maxStepGas, maxDestepGas, epsil, stmin); // // Ar-Isobuthane-Forane-SF6 gas fMUON->AliMedium(7, "GAS_CH_TRIGGER ", 21, 1, iSXFLD, sXMGMX, tmaxfd, stemax, deemax, epsil, stmin); fMUON->AliMedium(8, "BAKE_CH_TRIGGER ", 19, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, maxDestepAlu, epsil, stmin); // // slat medium fMUON->AliMedium(9, "ARG_CO2 ", 22, 1, iSXFLD, sXMGMX, tmaxfd, maxStepGas, maxDestepAlu, epsil, stmin); // // tracking media for slats: check the parameters!! fMUON->AliMedium(11, "PCB_COPPER ", 31, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, maxDestepAlu, epsil, stmin); fMUON->AliMedium(12, "G10 ", 32, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, maxDestepAlu, epsil, stmin); fMUON->AliMedium(13, "CARBON ", 33, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, maxDestepAlu, epsil, stmin); fMUON->AliMedium(14, "Rohacell ", 34, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, maxDestepAlu, epsil, stmin); fMUON->AliMedium(15, "Nomex ", 35, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, maxDestepAlu, epsil, stmin); fMUON->AliMedium(16, "Noryl ", 36, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, maxDestepAlu, epsil, stmin); fMUON->AliMedium(17, "Nomex bulk ", 37, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, maxDestepAlu, epsil, stmin); // for station 2 only // was med: 4 mat: 9 fMUON->AliMedium(22, "COPPER_II ", 42, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, maxDestepAlu, epsil, stmin); // was med: 10 mat: 30 fMUON->AliMedium(23, "FR4_CH ", 43, 0, iSXFLD, sXMGMX, 10.0, 0.01, 0.1, 0.003, 0.003); fMUON->AliMedium(24, "FrameCH$", 44, 1, iSXFLD, sXMGMX, 10.0, 0.001, 0.001, 0.001, 0.001); fMUON->AliMedium(29, "Kapton ", 49, 0, iSXFLD, sXMGMX, 10.0, 0.01, 1.0, 0.003, 0.003); // was med: 18 mat: 34 }