From a3bbe04ebbd276251bfb8beb69237bcf42e6c43a Mon Sep 17 00:00:00 2001 From: morsch Date: Fri, 27 Apr 2007 13:38:00 +0000 Subject: [PATCH] Air with increased transport cuts close to qb28. --- STRUCT/AliPIPEv0.cxx | 29 +++++++++++++++++++++++++---- 1 file changed, 25 insertions(+), 4 deletions(-) diff --git a/STRUCT/AliPIPEv0.cxx b/STRUCT/AliPIPEv0.cxx index 57a3be3afe7..b4edc64bf83 100644 --- a/STRUCT/AliPIPEv0.cxx +++ b/STRUCT/AliPIPEv0.cxx @@ -351,7 +351,14 @@ void AliPIPEv0::CreateGeometry() ptube[2] = hlenQb28; gMC->Gsvolu("QB28","TUBE", idtmed[kInox], ptube, 3); +// +// +// Air with high transport cuts outside QB28 + ptube[0] = 25.; + ptube[1] = 100.; + ptube[2] = hlenQb28; + gMC->Gsvolu("QA28","TUBE", idtmed[kAirHigh], ptube, 3); // Al-Be (40-60 wgt%, rho=2.7 g/cm**3) beam pipe // @@ -538,6 +545,7 @@ void AliPIPEv0::CreateGeometry() //last inox section till 800 cm zpos = zpos + hlenQb29 + hlenQb28; gMC->Gspos("QB28", 1, "QBPM", 0.0, 0.0, zpos, 0, "ONLY"); + gMC->Gspos("QA28", 1, "ALIC", 0.0, 0.0, zpos, 0, "ONLY"); //******** end of placement on non-absorber side ********* // @@ -732,7 +740,13 @@ void AliPIPEv0::CreateMaterials() Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827}; Float_t dAir = 1.20479E-3; Float_t dAir1 = 1.20479E-10; - + // + // Kapton + // + Float_t aKapton[4]={1.00794,12.0107, 14.010,15.9994}; + Float_t zKapton[4]={1.,6.,7.,8.}; + Float_t wKapton[4]={0.026362,0.69113,0.07327,0.209235}; + Float_t dKapton = 1.42; // // Berillium AliMaterial(5, "BERILLIUM$", 9.01, 4., 1.848, 35.3, 36.7); @@ -744,7 +758,8 @@ void AliPIPEv0::CreateMaterials() AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2); // // Air - AliMixture(15, "AIR$ ", aAir, zAir, dAir, 4, wAir); + AliMixture(15, "AIR$", aAir, zAir, dAir, 4, wAir); + AliMixture(35, "AIR_HIGH$", aAir, zAir, dAir, 4, wAir); // // Vacuum AliMixture(16, "VACUUM$ ", aAir, zAir, dAir1, 4, wAir); @@ -761,7 +776,9 @@ void AliPIPEv0::CreateMaterials() // AliMixture(22, "PA$", aPA, zPA, 1.14, -4, wPA); // - + // Kapton + AliMixture(23, "KAPTON", aKapton, zKapton, dKapton, 4, wKapton); + // // **************** // Defines tracking media parameters. // @@ -783,7 +800,8 @@ void AliPIPEv0::CreateMaterials() AliMedium(9, "ALU", 9, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); // // Air - AliMedium(15, "AIR", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); + AliMedium(15, "AIR", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); + AliMedium(35, "AIR_HIFG",35, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); // // Vacuum AliMedium(16, "VACUUM", 16, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); @@ -799,6 +817,9 @@ void AliPIPEv0::CreateMaterials() // // Polyamid AliMedium(22, "PA" , 22, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); + // + // KAPTON + AliMedium(23, "KAPTON", 23, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); } -- 2.39.3