Detector cooling service

Contact Person

The “EP-DT Cooling Project” was launched in 2009 with the ambition of creating in EP a pole of competences in all matters of innovative thermal management of detectors. The focus is mainly on highly demanding applications, where the level of engineering optimization needed to achieve the required physics performance is very high. In such cases, the thermal management concepts must be integrated in the detector design from the very beginning. New generation Silicon-Pixel Vertex and Silicon-Strip Tracking detectors are typical examples. The team is able to provide an integrated approach to the off-detector and on-detector aspects of thermal management, and gathers competences on:

  • Cooling plant design and construction
  • Innovative solutions for highly efficient local cooling
  • Environmental monitoring for cold operations


The team’s activities are divided in services (see below) and R&D projects. In the first case, at the request of and in collaboration with an experiment, developed innovative technologies that are considered mature enough for real-life application are engineered into a product and finalized for the integration in the experiment. In the second case, innovative technologies – bearing a clear potential for solving or improving issues in existing or future detectors – are studied to explore performance, feasibility and reliability in view of a possible future application. Early direct involvement of experiments is also sought for R&D Projects, for which useful guidelines from the “field” permit to orient the research towards them most useful directions.

Current Cooling Services

Micro Channel Cooling Service

After few years of intense development, the team is now able to design and integrate silicon micro-channel cooling devices for thermal management of Silicon-Pixel sensors and their R/O electronics. The achievable cooling efficiency is unparalleled in terms of combined reduction of material budget, reduction of junction temperature difference and uniformity of temperature distribution.

CO2 Cooling Systems

A standardized approach to the design of CO2 cooling units based on the successful “2-PACL”(1) cycle has been put in place in close collaboration with NIKHEF, where the concept was first developed in 2000 for the Silicon Tracker of AMS02 and for the VELO detector of LHCb.