Speaker
Description
The upgrade of the LHCb UT silicon tracker implements a sensors read-out with thermal dissipation in the range of 4 kW, operational temperatures lower than -5 °C, low material budget cooling/support structures. The detector supports, a total of 68 vertical staves, have an integrated cooling pipe embedded in conductive foam into the sandwich structure, exploiting CO2 evaporation in the temperature range of -30 °C. Current design implements a 3 m long Titanium 2 mm I.D. pipe with a vertical snake geometry. The pipe routing is underneath the stave concentrated power sources, the read-ot chips, so that dissipated power is efficiently removed. R&D activities and real scale test on prototypes have been done and are in progress to prove and finalize the design concept.
