Forum on Tracking Detector Mechanics 2025

Session

Forum 2025 - session 3

17 Jun 2025, 14:00

1.11/1.11a (Merchant Venturer's Building)

Description

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

44. Capillaries production and R&D for ATLAS ITk and CMS

Arianna Eugeni (Universita e INFN, Perugia (IT)), Patryk Krzysztof Paterak (Tadeusz Kosciuszko Cracow University of Technology (PL))

17/06/2025, 14:00

The presentation will focus on the current state of the capillary R&D for the ATLAS ITk and CMS and the challenges we observed with titanium and stainless steel capillaries. Capillaries are an essential component of a cooling loop ensuring the correct flow distribution in each of the parallel branches. To achieve this goal it is desirable that a given flow through the capillary results in a...

40. Large scale production of the 2PACL cooling sub-systems

Krzysztof Sliwa (CERN)

17/06/2025, 14:40

In order to meet the challenging thermal and environmental conditions of the ATLAS and CMS upgraded detector after LS3, a next-generation CO$_2$ evaporative cooling system has been developed. The new infrastructure is built around a modular design, consisting of multiple independent cooling units operating in parallel. Each module includes a dedicated cooling plant and a high-pressure...

21. Commissioning, Operation and Future Possibilities of the ATLAS and CMS DEMO Inheritance CO2 Cooling Systems

Youri Penders (CERN)

17/06/2025, 15:10

The ATLAS and CMS Phase-2 detector upgrades will employ CO₂-based evaporative cooling to ensure stable thermal operation of the newly developed silicon tracker modules, which are scheduled to be installed during LS3. Extensive validation and commissioning must be completed beforehand to guarantee proper cooling performance of the detector modules. In particular, cooling loops must be verified...

66. Invited Speaker: Innovative RTS composites and benefits for extreme environments

Olivia Stodieck (iCOMAT)

17/06/2025, 16:10

67. Importance of an adequate control system for the operation and commissioning of complex cooling systems

Lukasz Zwalinski (CERN), Viren Bhanot (CERN)

17/06/2025, 17:00

By the end of 2024, the EP-DT group at CERN had developed around 30x PLC- and SCADA based control systems for various scale detector cooling applications, most of them dedicated to “on-detector” CO2 cooling systems based on the 2PACL pumped loop concept, allowing for oil-free, stable, low-temperature precise control over long distances. Over the years, both the control system size and their...

39. CO$_2$ Surface Storage: safety (for operation, detector, and personnel) implications on the design of the system

Yann Herpin (CERN)

17/06/2025, 17:40

The development of the CO$_2$ surface storage module represents a critical advancement in extending the Phase II underground cooling systems of the ATLAS and CMS experiments at CERN. Over the past two years, the design has evolved to meet complex engineering challenges associated with safely and reliably transporting liquid CO$_2$ underground. Central to the design is the integration of a...