Speakers
Description
Within the framework of CERN’s High Luminosity LHC program, the ATLAS and CMS experiments are progressing in the installation and hardware commissioning of their environmentally sustainable, low-temperature detector cooling systems. These two-phase accumulator-controlled loop (2PACL) systems are unprecedented in scale and complexity—both mechanically and in terms of control systems—than any previous installations developed by the Experimental Physics Detector Technology Group.
This presentation will outline the numerous challenges encountered during the installation process, including construction by the manufacturer, transportation and on-site assembly. For the control systems, we will detail the quality assurance processes implemented, the safety measures adopted and the issues faced before and during hardware commissioning at both experimental sites.
We will discuss the strategies employed to minimize deployment time, highlight what was successfully anticipated, and reflect on oversights that emerged. Finally, we will propose additional measures that could further optimize preparation for the second phase of installation in ATLAS during LS3.