Beam pipe geometry created with create_bpipe_geometry_v13e.C The beam pipe is composed of aluminium with a thickness proportional to the diameter (0.017*D(z)mm). It is placed directly into the cave as mother volume. The beam pipe consists of few sections (including RICH/MUCH section). Each section has a PCON shape (including windows). There are two windows: first one @ 220mm with R600mm and 0.7mm thickness, second one @ 6000mm with R800mm and 3mm thickness. The last three sections (and second window @ 6000mm) of beam pipe (1800-7990mm) are rotated by an angle of 1.35 degrees relative to point (0,0,1800) mm and the OY axis, following the bend of the ions in the magnetic field (field_v12b was used). Material: aluminium Thickness: 0.017*D(z) mm Beam pipe section: pipe1 - vacuum chamber i Z,mm Rin,mm Rout,mm h,mm 1 -50.00 25.00 25.70 0.70 2 25.00 25.00 25.70 0.70 3 35.00 130.00 130.70 0.70 4 230.17 130.00 130.70 0.70 5 230.17 110.00 130.70 20.70 6 230.87 110.00 130.70 20.70 Beam pipe section: pipe2 - first window @ 220mm, h=0.7mm, R=600mm i Z,mm Rin,mm Rout,mm h,mm 1 220.00 18.00 18.00 0.00 2 220.70 18.00 28.69 10.69 3 221.45 30.00 39.30 9.30 4 223.71 60.00 65.55 5.55 5 227.49 90.00 94.14 4.14 6 230.17 105.86 110.00 4.14 7 230.87 110.00 110.00 0.00 Beam pipe section: pipe3 - STS section i Z,mm Rin,mm Rout,mm h,mm 1 220.00 17.40 18.00 0.60 2 494.00 17.40 18.00 0.60 3 1250.00 53.17 55.00 1.83 4 1700.00 58.50 60.00 1.50 5 1800.00 58.50 60.00 1.50 Beam pipe section: pipe4 - RICH section Traslation(dx,dy,dz): 0.00 0.00 1797.65 mm Rotation(phi,theta,psi): 90.00 1.35 0.00 deg i Z,mm Rin,mm Rout,mm h,mm 1 0.00 58.50 60.00 1.50 2 1900.00 125.24 129.56 4.32 Beam pipe section: pipe5 - TRD & TOF section Traslation(dx,dy,dz): 0.00 0.00 1797.65 mm Rotation(phi,theta,psi): 90.00 1.35 0.00 deg i Z,mm Rin,mm Rout,mm h,mm 1 1900.00 125.24 129.56 4.32 2 4196.97 183.60 189.92 6.32 3 4200.00 183.60 190.00 6.40 Beam pipe section: pipe6 - second window @ 6000mm, h=3mm, R=800mm Traslation(dx,dy,dz): 0.00 0.00 1797.65 mm Rotation(phi,theta,psi): 90.00 1.35 0.00 deg i Z,mm Rin,mm Rout,mm h,mm 1 4176.19 30.00 30.00 0.00 2 4179.19 30.00 75.41 45.41 3 4182.19 75.41 102.26 26.85 4 4189.13 129.22 146.38 17.16 5 4196.97 170.33 183.60 13.27 6 4200.00 183.60 183.60 0.00 Beam pipe section: pipe7 - PSD section Traslation(dx,dy,dz): 0.00 0.00 1797.65 mm Rotation(phi,theta,psi): 90.00 1.35 0.00 deg i Z,mm Rin,mm Rout,mm h,mm 1 4176.19 29.00 30.00 1.00 2 6190.00 29.00 30.00 1.00