SiD IR Layout

M. Breidenbach, P. Burrows, T. Markiewicz

SiD Collaboration Meeting 16-17 December 2005 Fermilab

2005.10.11 Discussion

2 / 13 • •

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

Garage assembly requirements

–

3m shielding wall between beamline position & garage

• Assuming self-shielding [which seems OK: see L. Keller, 2005.12.13 SLAC BDS mtg.] wall needed for commissioning only –

5m free space between shield wall & rotated barrel yoke3

• 2m free + 2m assembly fixture+1m free –

4m free space between rotated barrel yoke & rotated barrel HCAL

• 1m free + 2m assembly fixture+1m free –

5m free space between rotated barrel HCAL & pit wall

• 2m free + 2m assembly fixture+1m free

Tom Markiewicz

Detector Access Guesstimates

3 / 13 • • • • • • •

Door support leg overhang=

–

3.2m~25% door height (=barrel diameter=12.9m) 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 annulus=

–

3.0m [1m Fe, 2m concrete] Other

–

Tunnel diameter 3.2m

–

Assumed beam height=Barrel radius + 1m

Tom Markiewicz

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

10 8 6 4 2 -4 -6 0 -2 -8 -10 4 / 13 0 Barrel 2 Door Foot 3.0 m Mobile PAC1 Foot 4 6 Pit Wall 5.105 m Fixed PAC2 8 10 Shield Wall 12 14 Tunnel

0 -0.1

-0.2

-0.3

-0.4

-0.5

5 / 13 0 0.5

0.4

0.3

0.2

0.1

38cm OD Support Tube 2 40cm OD SiD Aperture 4 6

R20 Detail

Crab 8 10 12 1m wide platform 14 16

Tom Markiewicz

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

-4 -6 0 -2 -8 -10 0 6 / 13 10 8 2 6 4 2.775 m 2 3.00 m 6.45 m 3.00 m 0.55 m 4 6 3.120 m 8 3.20 m 10 12 1.905 m 14 16

Tom Markiewicz

Half SiD in 48m x 28m IR anamorphic scale

10 5 -10 -15 -20 -25 0 0 -5 -30 -35 -40 7 / 13 2 4 6 Shield Wall HCAL rotated Barrel Yoke rotated 8 3.00 m 5.00 m 6.45 m 4.00 m 6.45 m 5.00 m 10 12 14 16

Tom Markiewicz

8 / 13

SiD (closed) in 48m x 28m IR x-scale=y-scale

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

9 / 13

Tom Markiewicz

Remaining Issues

• •

Door opening sequence

–

If 3.0m long PacMan moves over leg (how?) to outside

• 55cm clearance between door radius and PacMan seems marginal – On Shielding wall side, assuming shielding not needed after commissioning, infinite space available – On far side of garage, 10m is arbitrary » 12m is approximate maximum for 2 IR Baseline Configuration » Push-Pull not analyzed yet • Maybe move it out radially, then back (in z) to tunnel wall –

5.105m long PacMan either stays in position, surrounding final doublet/crab support platform, or itself opens radially to move to far walls, permitting 3.0m PacMan to open slightly & move back to pit wall Many beamline devices including Crab Cavity within 14m of IP

–

It would be very, very good to have these devices in the tunnel

–

Suggest we adopt a 18m wide hall by minimizing to ~ZERO both:

• 1.9m free space at end when door opens (SLD was ~0.5m) • 3.2m door support length – pocket in wall for door support legs – use legless scheme for earthquake proofing / moving 10 / 13

Tom Markiewicz

10 8 6 -8 -10 -4 -6 4 2 0 -2

Si D Open in a 20m x 18m Data Pit

Support Legs in pockets, screw drive earthquake constraints, etc.

2 4 6 8 10 Pit Wall at z=+9m 12 14

Half SiD in 48m x 18m IR Hall Anamorphic scale

10 5 0 -5 -10 0 -15 -20 -25 -30 -35 1 2 3 4 5 6 7 8 9 10

Tom Markiewicz

13 / 13

SiD (open) in 48m x 18m IR X scale = y scale

Tom Markiewicz