CLICdp Tracker Technology Meeting Update of the Mechanics for the Tracking Detector Update of the Mechanics for the Tracking Detector Szymon Sroka, Wolfgang Klempt 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt
Presentation Layout Presentation Layout 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 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 2
Outer Sub ‐ System 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 3
Tracker Detector Outer End ‐ Caps Outer End-Caps 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 4
Outer End ‐ Caps Introduction to the Petal Design details: Module for the Outer End ‐ Cap : • ‐ Silicon Pixel Chips: T = 300 μ m ‐ FPC Metal layer (Aluminium): T = 50 μ m ‐ FPC Insulating layer (Polyimide): T = 100 μ m ‐ Glue (Eccobond 54): T = 100 μ m • Power Bus: ‐ Metal layer (Aluminium): T = 200 μ m ‐ Insulating layer (Polyimide): T = 200 μ m • 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 5
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 overlap 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 6
Outer End ‐ Caps „ Two different way of distributing the Petals on the mechanical structure” Petals on palne A Petals on plane A Petals on plane B Petals on plane B Option 2 Option 1 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 7
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 of Cage” Common issue: Massive problem with the insertion of the Petals into the mechanical support. Outer END-CAPS Reason? Limited Access! Relatively small distance between the End ‐ Caps layer and quite big overall dimensions of 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 Szymon Krzysztof Sroka, Wolfgang Klempt 8
Support Structure „Classical Approach” Design details: Comments: ‐ Two short cylinders made of Sandwich structure ‐ Construction is not optimized ( T_HC = 20 mm + T_CFS= 2*0.9 mm = 21.8 mm) ‐ Work is under the progress ‐ Cylinders connected each other by means of CF Spokes ‐ First iteration! or CF Ropes under tension ‐ BCs. As if Outer Ring would be ‐ Estimated Radiation Length ~0.31% supported on the rails 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 9
Support Structure „Ferris Wheel” 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 10
Support Structure for the Outer End ‐ Caps „Ferris Wheel” Design details: Comments: ‐ Two Ferris Wheels combined together ‐ Construction is not optimized ‐ Four sandwich rings. CFS (T_CFS= 0.36 mm) plus ‐ Work is under the progress HC/Rohacell Core (80 x 80 mm) ‐ First iteration! ‐ Estimated Radiation Length ~0.33% ‐ BCs. As if Outer Ring would be supported on the rails 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 11
Support Structure for the Outer End ‐ Caps „Motorcycle Wheel” 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 12
Support Structure for the Outer End ‐ Caps „Ultra Lightweight frame for the End ‐ Caps designed by Fernando” 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 13
Some Changes in the Inner part of the Tracker Layout 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 14
Tracker Detector Layout Inner Sub ‐ System Inner End-Caps 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 15
Tracker Detector Layout Inner Sub ‐ System 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 16
Inner End ‐ Caps Defining the value of the gap between the inner radius of End ‐ Caps and the Air duct 5mm 5mm 5mm 10mm 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 17
Inner End ‐ Caps Defining the value of the gap between the inner radius of End ‐ Caps and the Air duct 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 18
Inner End ‐ Caps Update of dimensions: Scenario 1 "Frozen" Z- coordinates! Tracker End ‐ Caps Uniform Distribution of End-Caps Gap for the Non uniform gaps for the services! services Outer between the Inner Radii Radii of Z Coordinate of Number support tube of End ‐ End ‐ Caps End ‐ Caps [mm] of and the outer EndCaps Caps [mm] [mm] radii of End ‐ Cap [mm] Inner Sub ‐ System 0 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 1377.1 32.5 164.901 542.4 4 197.728 545.0 1661.6 29.9 5 230.556 547.6 1946.1 27.3 6 2230.6 38.1 250 536.9 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 19
Inner End ‐ Caps Update of dimensions: Scenario 2 “Modified" Z- coordinates! Tracker End ‐ Caps Non Uniform distribution of End-Caps Gap for the More uniform gaps for the services! services Outer between the Inner Radii Radii of Z Coordinate of Number support tube of End ‐ End ‐ Caps End ‐ Caps [mm] of and the outer EndCaps Caps [mm] [mm] radii of End ‐ Cap [mm] Inner Sub ‐ System 0 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 1396.7 35.3 162.1 539.6 4 192.3 539.6 1658.5 35.3 5 222.5 539.6 1920.2 35.3 6 2230.6 30.3 242.6 544.6 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 20
Summary: A few preliminary support structure concepts for the Outer Tracker have been shown. The concepts are still ongoing towards further optimization. Promising feedback related to the material budget. Update of Tracker layout in the Inner part. 3/2/2016 Szymon Krzysztof Sroka, Wolfgang Klempt 21
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