Forum on Tracking Detector Mechanics 2025

Session

Forum 2025 - session 1

16 Jun 2025, 14:00

1.11/1.11a (Merchant Venturer's Building)

Description

https://cern.zoom.us/j/65719090745?pwd=Q3SYdpYDTcQbwh4rRUvWP6plIpUsLu.1

74. Essential Information

Joel Goldstein (University of Bristol (GB))

16/06/2025, 14:00

43. Welcome

Prof. Ole Thomsen (Bristol Composites Institute)

16/06/2025, 14:05

16. Design and Testing of the Outer Barrel Stave for the ePIC Silicon Vertex Tracker (SVT)

Adam Huddart

16/06/2025, 14:20

The ePIC silicon vertex tracker (SVT) will feature five-barrel layers and five disks at each end. The outer barrel (OB) consists of two layers at radii of 270 mm (L3) and 420 mm (L4). All parts of the SVT must satisfy extremely low material targets, of 0.25% X0 for L3 and 0.55% X0 for L4. The SVT will utilise a reduced-size version of the MOSAIX MAPS sensor, originally developed for the ALICE...

41. Development of Lightweight Forward Discs for the ePIC SVT at the EIC: Mechanical and Thermal Design, Prototyping, and Testing

Nicole Apadula (Lawrence Berkeley National Lab. (US))

16/06/2025, 14:50

Experiments at the future Electron-Ion Collider (EIC) pose stringent requirements on the tracking system for the measurement of the scattered electron and charged particles produced in the collision, as well as the position of the collision point and any decay vertices of hadrons containing heavy quarks. Monolithic Active Pixel Sensors (MAPS) offer the possibility of high granularity in...

45. Carbon Foam Air-Cooling for ALICE ITS3: Recent Progress and possible air cooling solutions for the ALICE LS3 and LS4 upgrades

Massimo Angeletti (CERN)

16/06/2025, 15:20

In the research and development for ALICE’s LS3 upgrade, particular emphasis is placed on designing an innovative mechanical and cooling solution for the next generation of low-mass vertex detector. Assuming the use of next-generation monolithic active pixel sensors (MAPS) based on stitched technology, capable of covering large, bent-to-shape surfaces, the focus is on providing the lightest...

14. ATLAS ITk strip staves: the long and rocky road from R&D to production

Anthony Weidberg (University of Oxford (GB))

16/06/2025, 16:20

The major limitation to the performance of the current ATLAS Inner Detector is that the long radiation length severely degrades the electron energy resolution and vertex pointing accuracy. Therefore, when ATLAS was considering options for the ITk upgraded tracker for HL-LHC, the choice was determined by the radiation length budget. The lowest radiation length solution was the one in which the...

4. Production of the ATLAS ITk Strip End-Cap global structures for the Phase-II LHC Upgrade

Max Nicolaas Van't Hek (Nikhef National institute for subatomic physics (NL))

16/06/2025, 16:50

The ATLAS ITk detector comprises multiple layers: the innermost ones are silicon pixel sensors optimized for high granularity, while the outer layers consist of silicon strip sensors tailored for precise tracking. The central part of the strip detector (Barrel) is composed of rectangular ∼2.5 cm and ∼5 cm long strip sensors. The forward regions of the strip tracker (End-Caps) are divided into...

6. Failure Analysis and Testing of Support Rails for the ATLAS Pixel Detector

Todd Claybaugh (Lawrence Berkeley National Lab. (US))

16/06/2025, 17:20

The ATLAS HL-LHC Pixel Detector (https://atlas.cern/) will be fully integrated outside of the larger detector and inserted along carbon fiber rails. The contact between these CN60/EX-1515 rails and the PEEK sliders is a critical interface. A finite element analysis study of the contact points on support rail surfaces was conducted in order to assess the structural integrity of the support...

12. High-Precision Engineering for the ATLAS Inner Tracker Outer Endcap

Rob Chapple (The University of Manchester (GB)), Rob Chapple (The University of Manchester (GB))

16/06/2025, 17:50

The Large Hadron Collider will be upgraded to increase the machine luminosity. The ATLAS experiment has developed an all-silicon inner tracker (ITk) to operate with much higher density of tracks while improving the performance of the tracking system. To withstand this harsh high luminosity environment, both a low material budget and radiation hardness are critical.
Within the ITk pixel...