Objective: Review design concepts and freeze interface specifications
Homework:
Dimensions
Optical cookie dimensions (1.8mm, GlueX/ECAL)? - Maria followed up with Zisis.
SiPM sizes (1.3 cm x 1.3 cm) - Maria followed up with Zisis.
Define tolerance around SiPMS and light guides (“reserved space”) (AstroPix card) -> Maria Followed up with Sylvester
Design goal and maximum requirement on the space for AstroPix boards -> Maria followed up with Sylvester.
Heat
heat consumption SiPM + peripherals
Follow-up with Norbert? (Maria) -> done, 2.5 W
Does power regulator etc get “hot”? -> WE DO NOT HAVE ANSWER TO IT
Add scale factor for Module PCB -> Module PCB generates some heat (< 20% more heat than AstroPix)
Need safety factor for all calculations (extra 20%, or 50% when we’re really uncertain)
Follow-up with Zisis on temperature stability -> Maria Followed up with Zisis
Need a sanity check on the cooling (follow-up with Dan?)