Speakers
Description
In the research and development for ALICE's future upgrades, there's a strong focus on creating new mechanical and cooling solutions for upcoming low-mass vertex detectors.
With the assumption of utilizing next-generation monolithic pixel sensors based on stitched technology, capable of covering large bent-to-shape surfaces, the focus lies on offering the lightest substrate with integrated cooling.
Within this developmental journey, shared with the CERN EP R&D program, the ITS3 of LS3 places its reliance primarily on gas cooling methods trying to achieve a record minimum material budget, while the IRIS vertex for LS4 opts for a two-phase cooling approach to fulfill more demanding cooling requirements.
Within these ambitious plans, a significant effort has resulted in the design and optimization of a thermal conductive carbon foam radiator capable of efficiently dissipating heat generated at power densities of up to 2 W/cm2 to be used in the ITS3.
When it comes to higher radiation environment, like in the IRIS vertex detector for LS4, and the necessity to go colder with evaporative system, different cooling substrate ideas have been experimented. Promising concept involves thin ceramic cold plate modules with tiny channels, created using advanced 3D printing techniques or other designs like microvascular carbon substrates either with Kapton pipes or pipeless.
Design choices and test results will be presented to elucidate the efficacy of these substrate concepts, offering insights into their potential applications and contributions to the advancement of tracker's detector systems
