+ Float_t x = ri * TMath::Cos(phi * kDegrad);
+ Float_t y = ri * TMath::Sin(phi * kDegrad);
+ AliMatrix(idrotm[2090+i], 90.0, phi, 90.0, phi + 270., 0., 0.);
+
+ gMC->Gspos("BFLB", i + 1, "BFMO", x, y, 0., idrotm[2090 + i], "ONLY");
+
+ x = ro * TMath::Cos(phi * kDegrad);
+ y = ro * TMath::Sin(phi * kDegrad);
+
+ gMC->Gspos("BFLB", i + 19, "BFMO", x, y, 0., idrotm[2090 +i], "ONLY");
+ }
+
+ //
+ // Radial Bars
+ //
+ bpar[0] = (kBFMRou - kBFMRin - 2. * kBFRdr) / 2.;
+ bpar[1] = kBFBd/2;
+ bpar[2] = bpar[1];
+ //
+ // Avoid overlap with circle
+ Float_t rr = kBFMRou - kBFRdr;
+ Float_t delta = rr - TMath::Sqrt(rr * rr - kBFBd * kBFBd / 4.) + 0.01;
+ bpar[0] -= delta /2.;
+
+
+ gMC->Gsvolu("BFRB", "BOX ", kSteel, bpar, 3);
+
+ bpar[0] = bpar[0] - kBFBdd;
+ bpar[1] = bpar[1] - kBFBdd;
+ bpar[2] = bpar[2] - kBFBdd;
+ gMC->Gsvolu("BFRR", "BOX ", kAir, bpar, 3);
+ gMC->Gspos("BFRR", 1, "BFRB", 0., 0., 0., 0, "ONLY");
+
+ Int_t iphi[10] = {0, 1, 3, 6, 8, 9, 10, 12, 15, 17};
+
+ for (i = 0; i < 10; i++)
+ {
+
+ Float_t r = (kBFMRin + kBFMRou)/2.;
+ Float_t phi = Float_t(iphi[i]) * 20.;
+
+ Float_t x = r * TMath::Cos(phi * kDegrad);
+ Float_t y = r * TMath::Sin(phi * kDegrad);
+
+ gMC->Gspos("BFRB", i + 1, "BFMO", x, y, dz, idrotm[2034 + iphi[i]], "ONLY");
+ gMC->Gspos("BFRB", i + 11, "BFMO", x, y, -dz, idrotm[2034 + iphi[i]], "ONLY");
+
+ }
+
+ gMC->Gspos("BFMO", i + 19, "ALIC", 0, 0, 376. + kBFMdz/2. + 0.5 , 0, "ONLY");
+
+
+
+//
+//
+// The Baby Frame
+//
+//
+ //
+ // Inner radius
+ Float_t kBBMRin = 278.0;
+ // Outer Radius
+ Float_t kBBMRou = 410.5;
+ // Width
+ Float_t kBBMdz = 223.0;
+ Float_t kBBBdz = 6.0;
+ Float_t kBBBdd = 0.6;
+
+
+ // The Mother volume
+
+ ppgon[0] = 0.;
+ ppgon[1] = 360.;
+ ppgon[2] = 18.;
+
+ ppgon[3] = 2.;
+ ppgon[4] = -kBBMdz / 2. ;
+ ppgon[5] = kBBMRin;
+ ppgon[6] = kBBMRou;
+
+ ppgon[7] = -ppgon[4];
+ ppgon[8] = ppgon[5];
+ ppgon[9] = ppgon[6];
+
+ gMC->Gsvolu("BBMO", "PGON", kAir, ppgon, 10);
+ gMC->Gsdvn("BBCE", "BBMO", 18, 2);
+
+ // Longitudinal bars
+ bpar[0] = kBBBdz/2.;
+ bpar[1] = bpar[0];
+ bpar[2] = kBBMdz/2. - kBBBdz;
+ gMC->Gsvolu("BBLB", "BOX ", kSteel, bpar, 3);
+ bpar[0] -= kBBBdd;
+ bpar[1] -= kBBBdd;
+ bpar[2] -= kBBBdd;
+ gMC->Gsvolu("BBLL", "BOX ", kAir, bpar, 3);
+ gMC->Gspos("BBLL", 1, "BBLB", 0., 0., 0., 0, "ONLY");
+
+ dx = kBBMRin + kBBBdz/2. + (bpar[1] + kBBBdd) * TMath::Sin(10. * kDegrad);
+ dy = dx * TMath::Tan(10. * kDegrad) - kBBBdz/2./TMath::Cos(10. * kDegrad);
+ gMC->Gspos("BBLB", 1, "BBCE", dx, dy, 0., idrotm[2052], "ONLY");
+
+ dx = kBBMRou - kBBBdz/2. - (bpar[1] + kBBBdd) * TMath::Sin(10. * kDegrad);
+ dy = dx * TMath::Tan(10. * kDegrad) - kBBBdz/2./TMath::Cos(10. * kDegrad);
+
+ gMC->Gspos("BBLB", 2, "BBCE", dx, dy, 0., idrotm[2052], "ONLY");
+
+ //
+ // Radial Bars
+ //
+ bpar[0] = (kBBMRou - kBBMRin) / 2. - kBBBdz;
+ bpar[1] = kBBBdz/2;
+ bpar[2] = bpar[1];
+
+ gMC->Gsvolu("BBRB", "BOX ", kSteel, bpar, 3);
+ bpar[0] -= kBBBdd;
+ bpar[1] -= kBBBdd;
+ bpar[2] -= kBBBdd;
+ gMC->Gsvolu("BBRR", "BOX ", kAir, bpar, 3);
+ gMC->Gspos("BBRR", 1, "BBRB", 0., 0., 0., 0, "ONLY");
+
+
+ dx = (kBBMRou + kBBMRin) / 2.;
+ dy = ((kBBMRou + kBBMRin)/ 2) * TMath::Tan(10 * kDegrad) - kBBBdz / 2./ TMath::Cos(10 * kDegrad);
+ dz = kBBMdz/2. - kBBBdz / 2.;
+
+ gMC->Gspos("BBRB", 1, "BBCE", dx, dy, dz, idrotm[2052], "ONLY");
+ gMC->Gspos("BBRB", 2, "BBCE", dx, dy, - dz, idrotm[2052], "ONLY");
+ gMC->Gspos("BBRB", 3, "BBCE", dx, dy, 0., idrotm[2052], "ONLY");
+
+ //
+ // Circular bars
+ //
+ // Inner
+
+ bpar[1] = kBBMRin * TMath::Sin(10. * kDegrad);
+ bpar[0] = kBBBdz/2;
+ bpar[2] = bpar[0];
+ gMC->Gsvolu("BBC1", "BOX ", kSteel, bpar, 3);
+ bpar[0] -= kBBBdd;
+ bpar[1] -= kBBBdd;
+ bpar[2] -= kBBBdd;
+ gMC->Gsvolu("BBC2", "BOX ", kAir, bpar, 3);
+ gMC->Gspos("BBC2", 1, "BBC1", 0., 0., 0., 0, "ONLY");
+ dx = kBBMRin + kBBBdz/2;
+ dy = 0.;
+ gMC->Gspos("BBC1", 1, "BBCE", dx, dy, dz, 0, "ONLY");
+ gMC->Gspos("BBC1", 2, "BBCE", dx, dy, -dz, 0, "ONLY");
+ //
+ // Outer
+ bpar[1] = (kBBMRou - kBBBdz) * TMath::Sin(10. * kDegrad);
+ bpar[0] = kBBBdz/2;
+ bpar[2] = bpar[0];
+ gMC->Gsvolu("BBC3", "BOX ", kSteel, bpar, 3);
+ bpar[0] -= kBBBdd;
+ bpar[1] -= kBBBdd;
+ bpar[2] -= kBBBdd;
+ gMC->Gsvolu("BBC4", "BOX ", kAir, bpar, 3);
+ gMC->Gspos("BBC4", 1, "BBC3", 0., 0., 0., 0, "ONLY");
+ dx = kBBMRou - kBBBdz/2;
+ dy = 0.;
+ gMC->Gspos("BBC3", 1, "BBCE", dx, dy, dz, 0, "ONLY");
+ gMC->Gspos("BBC3", 2, "BBCE", dx, dy, - dz, 0, "ONLY");
+ //
+ // Diagonal Bars
+ //
+ h = (kBBMRou - kBBMRin - 2. * kBBBdz);;
+ d = kBBBdz;
+ dz = kBBMdz/2. - 1.6 * kBBBdz;
+ dq = h*h+dz*dz;
+
+ x = TMath::Sqrt((dz*dz-d*d)/dq + d*d*h*h/dq/dq)+d*h/dq;
+
+
+ theta = kRaddeg * TMath::ACos(x);
+
+ ptrap[0] = dz/2.;
+ ptrap[1] = theta;
+ ptrap[2] = 0.;
+ ptrap[3] = d/2;
+ ptrap[4] = d/x/2;
+ ptrap[5] = ptrap[4];
+ ptrap[6] = 0;
+ ptrap[7] = ptrap[3];
+ ptrap[8] = ptrap[4];
+ ptrap[9] = ptrap[4];
+ ptrap[10] = 0;
+ gMC->Gsvolu("BBD1", "TRAP", kSteel, ptrap, 11);
+ ptrap[3] = d/2-kBBBdd;
+ ptrap[4] = (d/2-kBBBdd)/x;
+ ptrap[5] = ptrap[4];
+ ptrap[7] = ptrap[3];
+ ptrap[8] = ptrap[4];
+ ptrap[9] = ptrap[4];
+ gMC->Gsvolu("BBD3", "TRAP", kAir, ptrap, 11);
+ gMC->Gspos("BBD3", 1, "BBD1", 0.0, 0.0, 0., 0, "ONLY");
+ dx = (kBBMRou + kBBMRin) / 2.;
+ dy = ((kBBMRou + kBBMRin)/ 2) * TMath::Tan(10 * kDegrad) - kBBBdz / 2./ TMath::Cos(10 * kDegrad);
+ gMC->Gspos("BBD1", 1, "BBCE", dx, dy, dz/2. + kBBBdz/2., idrotm[2052], "ONLY");
+
+
+ ptrap[0] = dz/2.;
+ ptrap[1] = -theta;
+ ptrap[2] = 0.;
+ ptrap[3] = d/2;
+ ptrap[4] = d/2/x;
+ ptrap[5] = ptrap[4];
+ ptrap[6] = 0;
+ ptrap[7] = ptrap[3];
+ ptrap[8] = ptrap[4];
+ ptrap[9] = ptrap[4];
+ ptrap[10] = 0;
+ gMC->Gsvolu("BBD2", "TRAP", kSteel, ptrap, 11);
+ ptrap[3] = d/2-kBBBdd;
+ ptrap[4] = (d/2-kBBBdd)/x;
+ ptrap[5] = ptrap[4];
+ ptrap[7] = ptrap[3];
+ ptrap[8] = ptrap[4];
+ ptrap[9] = ptrap[4];
+ gMC->Gsvolu("BBD4", "TRAP", kAir, ptrap, 11);
+ gMC->Gspos("BBD4", 1, "BBD2", 0.0, 0.0, 0., 0, "ONLY");
+ dx = (kBBMRou + kBBMRin) / 2.;
+ dy = ((kBBMRou + kBBMRin)/ 2) * TMath::Tan(10 * kDegrad) - kBBBdz / 2./ TMath::Cos(10 * kDegrad);
+ gMC->Gspos("BBD2", 1, "BBCE", dx, dy, -dz/2. - kBBBdz/2., idrotm[2052], "ONLY");
+
+
+ gMC->Gspos("BBMO", 1, "ALIC", 0., 0., - 376. - kBBMdz / 2. - 0.5, 0, "ONLY");
+
+