Sergej, Sacha, Meny, (Itamar), Yan Beam Cal study Sergej, Sacha, Meny, (Itamar), Yan
Reminder …. 2014 Sergej and Lucia proposed a new BeamCal design
Sergej 2014 BEAM
Sergej 2014
2017 In the last months, we decided to explore this idea We started discussion between TAU and Sergej We reached new ideas that still are under discussion. Main concerns: Avoid to machine very precisely the tungsten plane Maybe avoid the PCB Simplification of the kapton
spacer Tungsten present proposal Tungsten new proposal
1st layer HV line Readout lines Blue :Kapton with the readout signal Glued to the sapphir detector 10 readout lines Green : sapphire detector Red : Kapton with HV line
2nd layer Readout lines HV line Blue :Kapton with the readout signal Glued to the sapphir detector 10 readout lines Green : sapphire detector Red : Kapton with HV line
Beam view Side view Absorber I draw only nine strips inserted into The absorber
Fake construction Tungsten Sapphire sensor (300um) Spacer (500um)
spacer tungsten sensor
1 3 2 4
Fake readout kapton
Back view Front view
conclusion Sapphire sensor beamcal has been proposed 2014 by Sergej Discussions/propositions are on going to simplify what can be simplify Need to find a readout. Maybe APV is ok Hope to reach a proposal in the next months We will need then a discussion into the FCAL community : do we want to push it forward (TB) ? Who ? Funding ? When ?