Update of the Mechanics for the Tracking Detector Update of the - - PowerPoint PPT Presentation

CLICdp Tracker Technology Meeting

Update of the Mechanics for the Tracking Detector Update of the Mechanics for the Tracking Detector

Szymon Sroka, Wolfgang Klempt

Szymon Krzysztof Sroka, Wolfgang Klempt 3/2/2016

3/2/2016

• Outer Sub‐System: End‐Caps

‐ Introduction to the Petals ‐ Consideration at the level of one single layer of Outer End‐Caps ‐ Two different way of distributing the Petals on the mechanical structure ‐ Support Structure for the Outer End‐Caps: Brainstorming ‐ Support Structure: Classical Approach ‐ Support Structure: „Ferris Wheel” ‐ Support Structure: „Motorcycle Wheel” ‐ Ultra Lightweight frame for the Outer End‐Caps designed by Fernando

• Tracker Layout: Inner End‐Caps

– Defining the value of the gap between the inner radius of End‐Caps and the Air duct ‐ Update of dimensions: Scenario 1 ‐ Update of dimensions: Scenario 2

Szymon Krzysztof Sroka, Wolfgang Klempt 2

Presentation Layout Presentation Layout

Outer Sub‐System

3 Szymon Krzysztof Sroka, Wolfgang Klempt 3/2/2016

Szymon Krzysztof Sroka, Wolfgang Klempt 4

Tracker Detector

Outer End‐Caps

Outer End-Caps

3/2/2016

Szymon Krzysztof Sroka, Wolfgang Klempt 5

Outer End‐Caps

Introduction to the Petal

Design details:

• Module for the Outer End‐Cap:

‐ Silicon Pixel Chips: T = 300 μm ‐ FPC Metal layer (Aluminium): T = 50 μm ‐ FPC Insulating layer (Polyimide): T = 100 μm ‐ Glue (Eccobond 54): T = 100 μm

• Power Bus:

‐ Metal layer (Aluminium): T = 200 μm ‐ Insulating layer (Polyimide): T = 200 μm

• Mechanical layout:

‐ HC: e.g. Honeycomb panel ULTRACOR UCF‐119‐ 3/16‐3.5, T = 5 mm ‐ CFS: e.g. Toray M55J + Cycom 950‐1, T = 0.21 mm ‐ Cooling pipes (need to be discussed) ‐ POCOFoam to Carbon Facing

• Mass of 1 Petal:

‐ ~0.53 kg (Sensors on one side); ~1,1 kg (Sensors on both sides)

3/2/2016

Szymon Krzysztof Sroka, Wolfgang Klempt 6

Outer End‐Caps

„ Consideration at the level of one single End‐Cap layer”

Design features:

‐ 1 Petal consists of 160 modules of size 30 x 30 mm if the modules are only on one side of the petal ‐ Petals are located in two planes ‐ Distance between planes needs to be discussed with the simulation group! ‐ 24 Petals are needed in one plane in order to provide the

• verlap with the Outer Sub‐System

‐

Support Structure: Design Objetvies

‐ Minimizing the value of Radiation length ‐ Lightweight construction ‐ Small deflection ‐ Eigenfrequency is also a critical parameter Total Mass for 48 Petals equipped with the modules: 26 kg – Silicon modules only on one side of the Petal 40.2 kg – Silicon modules on both sides of Petal

3/2/2016

Szymon Krzysztof Sroka, Wolfgang Klempt 7

Outer End‐Caps

„ Two different way of distributing the Petals on the mechanical structure”

Petals on palne A Petals on plane B Option 1 Petals on plane A Petals on plane B Option 2

3/2/2016

Szymon Krzysztof Sroka, Wolfgang Klempt 8

Outer END-CAPS

Support Structure for the Outer End‐Caps

„Brainstorming”

Trend coming from the other Experiments:

‐ Support Structure is usually designed as one Unit. e.g. Atlas Upgrade, „Support structure in the shape

• f Cage”

Common issue: Massive problem with the insertion of the Petals into the mechanical support. Reason? Limited Access!  Relatively small distance between the End‐Caps layer and quite big overall dimensions

• f Petals.

Well, Do we really need to follow for the “crowd”? As far as, there is no significant limitation… CLICdp is R&D. Therefore, let’s try something new?

3/2/2016

3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 9

Support Structure

„Classical Approach”

Design details:

‐ Two short cylinders made of Sandwich structure ( T_HC = 20 mm + T_CFS= 2*0.9 mm = 21.8 mm) ‐ Cylinders connected each other by means of CF Spokes

• r CF Ropes under tension

‐ Estimated Radiation Length ~0.31%

Comments:

‐ Construction is not optimized ‐ Work is under the progress ‐ First iteration! ‐ BCs. As if Outer Ring would be supported on the rails

Szymon Krzysztof Sroka, Wolfgang Klempt 10

Support Structure

„Ferris Wheel”

3/2/2016

Szymon Krzysztof Sroka, Wolfgang Klempt 11

Support Structure for the Outer End‐Caps

„Ferris Wheel”

Design details:

‐ Two Ferris Wheels combined together ‐ Four sandwich rings. CFS (T_CFS= 0.36 mm) plus HC/Rohacell Core (80 x 80 mm) ‐ Estimated Radiation Length ~0.33%

Comments:

‐ Construction is not optimized ‐ Work is under the progress ‐ First iteration! ‐ BCs. As if Outer Ring would be supported on the rails

3/2/2016

Szymon Krzysztof Sroka, Wolfgang Klempt 12

Support Structure for the Outer End‐Caps

„Motorcycle Wheel”

3/2/2016

Szymon Krzysztof Sroka, Wolfgang Klempt 13

Support Structure for the Outer End‐Caps

„Ultra Lightweight frame for the End‐Caps designed by Fernando”

3/2/2016

Some Changes in the Inner part of the Tracker Layout

14 Szymon Krzysztof Sroka, Wolfgang Klempt 3/2/2016

15

Tracker Detector Layout

Inner Sub‐System

Inner End-Caps

Szymon Krzysztof Sroka, Wolfgang Klempt 3/2/2016

16

Tracker Detector Layout

Inner Sub‐System

Szymon Krzysztof Sroka, Wolfgang Klempt 3/2/2016

17

Inner End‐Caps

Defining the value of the gap between the inner radius of End‐Caps and the Air duct

5mm 5mm 10mm 5mm

Szymon Krzysztof Sroka, Wolfgang Klempt 3/2/2016

18

Inner End‐Caps

Defining the value of the gap between the inner radius of End‐Caps and the Air duct

Szymon Krzysztof Sroka, Wolfgang Klempt 3/2/2016

19

Inner End‐Caps

Update of dimensions: Scenario 1

Tracker End‐Caps

Number

• f

EndCaps

Inner Radii

• f End‐

Caps [mm] Outer Radii of End‐Caps [mm] Z Coordinate of End‐Caps [mm] Gap for the services between the support tube and the outer radii of End‐Cap [mm]

Inner Sub‐System

71.574 403.7 523.6

• 1

99.247 552.2 808.1 22.7 2 132.074 554.8 1092.6 20.1 3 164.901 542.4 1377.1 32.5 4 197.728 545.0 1661.6 29.9 5 230.556 547.6 1946.1 27.3 6 250 536.9 2230.6 38.1

"Frozen" Z- coordinates! Uniform Distribution of End-Caps Non uniform gaps for the services!

Szymon Krzysztof Sroka, Wolfgang Klempt 3/2/2016

20

Inner End‐Caps

Update of dimensions: Scenario 2

Tracker End‐Caps

Number

• f

EndCaps

Inner Radii

• f End‐

Caps [mm] Outer Radii of End‐Caps [mm] Z Coordinate of End‐Caps [mm] Gap for the services between the support tube and the outer radii of End‐Cap [mm]

Inner Sub‐System

71.5 403.7 523.6

• 1

86.6 539.6 742.4 35.3 2 116.8 539.6 1004.2 35.3 3 162.1 539.6 1396.7 35.3 4 192.3 539.6 1658.5 35.3 5 222.5 539.6 1920.2 35.3 6 242.6 544.6 2230.6 30.3

“Modified" Z- coordinates! Non Uniform distribution of End-Caps More uniform gaps for the services!

Szymon Krzysztof Sroka, Wolfgang Klempt 3/2/2016

Summary:

21

• A few preliminary support structure concepts

for the Outer Tracker have been shown.

• The concepts are still ongoing towards further
• ptimization.
• Promising feedback related to the material

budget.

• Update of Tracker layout in the Inner part.

Szymon Krzysztof Sroka, Wolfgang Klempt 3/2/2016

Thank you