1. SiD IR Layout M. Breidenbach, P. Burrows, T. Markiewicz
SiD Collaboration Meeting
16-17 December 2005
Fermilab

2. 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= m
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

3. 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=

4. SiD closed, on beamline, in 20m x 28m

5. SiD open, on beamline, in 20m x 28m

6. 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

7. SiD in 48m x 28m IR, x-scale=y-scale

8. 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

9. 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