Intra coil Insulation

Polyimide (Kapton)

11 Turns

0.5 mm Diameter

Q @300 MHz

Top Coil = 20

Bottom Coil = 15

Technology CMOS

0.35 µm & 0.6 µm

ID Strawman Layout 3+4+2 (P+SS+LS)

4+3+2 (Pixel, SS, LS) - Strawman

SS/LS FIXED LENGTH

4+3+2 25 Degree Cone Ends

Conical-flat disk

28709,4

8,0

24,0

19,8

95,0

2 row stave

Flat wheel

34190,1

9,0

24,0

24,4

95,0

2 row stave

Cone wheel

26949,7

6,0

55,0

19,8

95,0

1 row stave

Flat wheel

32100,5

7,0

61,0

24,4

95,0

1 row stave

Cone wheel

Area (cm2)

N. rings

N. staves

Rin

(cm)

Rout

(cm)

Internal wheel

To narrow wafer for low radio, small pitch, place the hybrids an issue

Gap at a fixed radio and larger diversity of sensors

To reach the same inner radio more rings (more silicon) is needed with conical disk.

2 row staves more complicated to assemble, but smaller number/disk needed.

In the concept of radial staves the implementation of services may lock “easy”, it looks natural at a first glance.

Circumferential stave

8 round edges wafer to built a circumferential stave.

Pitch fixed to 80 m at half height of the wafer.

8 chips per wafer

All strips in a ring have the same length.

One type of sensor per ring.

Cones difficult to implement.

3

5,1

8,3

7

3

8,3

10,9

6

5

6,6

8,4

5

6

7,0

8,6

4

7

7,4

8,6

3

8

7,6

8,7

2

9

7,2

8,7

1

Number

Staves

Bot. width

(cm)

Up width

(cm)

Ring

Main problem: how to “route” the services out of the staves.

TOTAL = 41 staves for the more internal disk

Tracker Upgrade Workshop 7 XII 06

Beampipe- R.Veness

1

-

Crossing angle

14

TOTAL

3

-

Closed orbit

7.5

15

Beam size

2.5

5

Separation

mm

σ

Component

Beam stay-clear radius composition

Crossing angle ~1mm

Crossing half-angle of ~200 rad for upgraded LHC

Tracker Upgrade Workshop 7 XII 06

Beampipe- R.Veness

Beampipe Diameter for LHC Baseline (1997 values)

Beam stay-clear 14mm

within the tracker region (±5 m) at injection

In forward regions, this may be higher for collision optics

Survey Precision ~ 2.6mm

A given survey target in the tracker region was expected to be placed within 2.6mm of the nominal beam axis with a 2 (95%) confidence, using the survey techniques planned for ATLAS

Mechanical construction ~ 2.6mm

Tolerances on straightness, circularity, wall thickness, sag under self-weight etc

Instabilities ~ 9.8mm

Stability of the cavern, movements due to electro-magnetic forces, thermal expansion

Tracker Upgrade Workshop 7 XII 06

Beampipe- R.Veness

Central beampipe (spare) in final configuration on the pixel assembly bench

SoS Technology Features

Ideal for radiation-tolerant mixed-signal circuit design due to minimum substrate noise

Reduced Parasitic capacitance

High performance

Low Power consumption

Minimum crosstalk

Widely used in RF and space products

Transparent substrate allows for compact and simple integration with optical devices

2006-12-14T09:49:25