SiD IR Layout M. Breidenbach, P. Burrows, T. Markiewicz SiD Collaboration Meeting 16-17 December 2005 Fermilab
2005.10.11 Discussion SiD Dimensions from 2005-05 files Barrel radius=6.450m Barrel half-length=2.775m EC Yoke=3.12m thick EC Yoke ends at 5.895m=2.775+3.120m Assumed beam height=Barrel radius + 1m Garage assembly requirements 3m shielding wall between beamline position & garage 5m free space between shield wall & rotated barrel yoke 2m free + 2m assembly fixture+1m free 4m free space between rotated barrel yoke & rotated barrel HCAL 5m free space between rotated barrel yoke & pit wall
Detector Access Guesstimates Door support leg overhang= 3.2m~25% barrel diameter Door opening= 3.0m Free space to walk around door ends= 1.9m Reserved radius = 8.0m (6.45 iron +1.55m services) Free space between dressed barrel & pit walls= 2.0m PACMAN radius=
SiD closed, on beamline, in 20m x 28m
SiD open, on beamline, in 20m x 28m
SiD in 48m x 28m IR, anamorphic scales Barrel Yoke rotated 6.45 m 4.00 m HCAL rotated 6.45 m 5.00 m
SiD in 48m x 28m IR, x-scale=y-scale
Elevation View Pit Elevation: 30m ? 1.000 Barrel-floor 12.90 Detector diameter 12.90 Free space above detector 3.000 Crane bridge and hook
Remaining Issues Presumably, 5.105m long final doublet support platform from door open position (8.895m) to pit wall (14.00m) which mates well with pacman Many beamline devices including Crab Cavity within 14m of IP Is a PACMAN solution viable given transverse size of these devices? Suggest we minimize 1.9m free space at end when door open as well as 3.2m door support length 8.1m long PacMan seems very long 55cm clearance between door radius and pacman seems marginal