From 94acb61f68ad1663c2e22b48d144cf69280884ad Mon Sep 17 00:00:00 2001 From: masera Date: Wed, 8 Feb 2006 12:41:37 +0000 Subject: [PATCH] Mixtures instead of materials with fractional Z in SPD (SPD bus and SPD end ladder --- ITS/AliITSvPPRasymmFMD.cxx | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/ITS/AliITSvPPRasymmFMD.cxx b/ITS/AliITSvPPRasymmFMD.cxx index 6c451389605..217c97b2e51 100644 --- a/ITS/AliITSvPPRasymmFMD.cxx +++ b/ITS/AliITSvPPRasymmFMD.cxx @@ -4774,7 +4774,14 @@ void AliITSvPPRasymmFMD::CreateMaterials(){ AliMaterial(75,"ELASTO SIL$",0.28086E+02,0.14000E+02,0.23300E+01,0.93600E+01,0.99900E+03); AliMedium(75,"ELASTO SIL$",75,0,ifield,fieldm,tmaxfd,stemax,deemax,epsil,stmin); - AliMaterial(76,"SPDBUS(AL+KPT+EPOX)$",0.19509E+02,0.96502E+01,0.19060E+01,0.15413E+02,0.99900E+03); + // SPD bus (data from Petra Riedler) + Float_t aSPDbus[5] = {1.00794,12.0107,14.01,15.9994,26.982 }; + Float_t zSPDbus[5] = {1.,6.,7.,8.,13.}; + Float_t wSPDbus[5] = {0.023523,0.318053,0.009776,0.078057,0.570591}; + Float_t dSPDbus = 2.128505; + + // AliMaterial(76,"SPDBUS(AL+KPT+EPOX)$",0.19509E+02,0.96502E+01,0.19060E+01,0.15413E+02,0.99900E+03); + AliMixture(76,"SPDBUS(AL+KPT+EPOX)$",aSPDbus,zSPDbus,dSPDbus,5,wSPDbus); AliMedium(76,"SPDBUS(AL+KPT+EPOX)$",76,0,ifield,fieldm,tmaxfd,stemax,deemax,epsil,stmin); AliMixture(77,"SDD X7R capacitors$",aX7R,zX7R,dX7R,7,wX7R); @@ -4965,7 +4972,14 @@ void AliITSvPPRasymmFMD::CreateMaterials(){ AliMaterial(90,"SPD shield$", 12.011, 6., 1.93/10. , 22.1*10., 999); AliMedium(90,"SPD shield$",90,0,ifield,fieldm,tmaxfdServ,stemaxServ,deemaxServ,epsilServ,stminServ); - AliMaterial(91, "SPD End ladder$", 47.0447, 21.7963, 3.6374, 4.4711, 999); + // SPD End Ladder (data from Petra Riedler) + Float_t aSPDel[5] = {1.00794,12.0107,14.01,15.9994,63.54 }; + Float_t zSPDel[5] = {1.,6.,7.,8.,29.}; + Float_t wSPDel[5] = {0.004092,0.107274,0.011438,0.032476,0.844719}; + Float_t dSPDel = 3.903403; + + // AliMaterial(91, "SPD End ladder$", 47.0447, 21.7963, 3.6374, 4.4711, 999); + AliMixture(91,"SPD End ladder$",aSPDel,zSPDel,dSPDel,5,wSPDel); AliMedium(91,"SPD End ladder$",91,0,ifield,fieldm,tmaxfdServ,stemaxServ,deemaxServ,epsilServ,stminServ); AliMaterial(92, "SPD cone$",28.0855, 14., 2.33, 9.36, 999); -- 2.43.0