Transcript NLC - Stanford University

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
• 2m free + 2m assembly fixture+1m free
– 5m free space between rotated barrel yoke & pit wall
• 2m free + 2m assembly fixture+1m free
2/9
Tom Markiewicz
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=
– 3.0m
3/9
Tom Markiewicz
SiD closed, on beamline, in 20m x 28m
10
8
6
4
2
0
0
-2
2
4
6
8
10
12
14
16
8.105 m
-4
-6
-8
-104 / 9
Tom Markiewicz
SiD open, on beamline, in 20m x 28m
10
8
6
2.775 m
4
3.120 m
3.00 m
1.905 m
3.20 m
2
0
0
2
4
6
8
10
12
14
16
-2
-4
6.45 m
-6
0.55 m
-8
3.00 m
-10 5 / 9
Tom Markiewicz
SiD in 48m x 28m IR, anamorphic scales
10
5
0
0
2
4
6
8
10
12
14
16
-5
-10
3.00 m
-15
5.00 m
Barrel Yoke
-20
rotated
-25
-30
4.00 m
HCAL
rotated
-35
-40
6/9
6.45 m
6.45 m
5.00 m
Tom Markiewicz
SiD in 48m x 28m IR, x-scale=y-scale
10
5
0
0
2
4
6
8
10
12
14
16
-5
-10
-15
-20
-25
-30
-35
-40
7/9
Tom Markiewicz
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
8/9
Tom Markiewicz
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
9/9
Tom Markiewicz