ILC Workshop on Potential Experiments (ILCX2021)

The SiD Digital ECal based on Monolithic Active Pixel Sensors

27 Oct 2021, 13:00

20m

Room #3 (Zoom Meeting ID: 814 7454 2635)

Oral presentation using Zoom Session B: Calorimeters B-1: Calorimeters

Speaker

Jim Brau (University of Oregon (US))

Description

Jim Brau (U. Oregon), Martin Breidenbach (SLAC), Lorenzo Rota (SLAC), et al.

The SiD Collaboration has had a long interest in the potential for improved granularity in the tracker and ECal; a study of MAPS in the SiD ECal was described in the ILC TDR. Work is progressing on the MAPS application in an upgraded SiD design, both for the ECal and tracking. A prototyping design effort is underway for a common SiD tracker/ECal design based on stitched reticules to achieve 10 x 10 cm$^2$ sensors with 25 x 100 micron$^2$ pixels. Application of large area MAPS in these systems would eliminate delicate and expensive bump-bonding. The small pixels significantly improve shower separation. Recent simulation studies confirm previous results, indicating electromagnetic energy resolution based on digital hit cluster counting provides better performance than the SiD TDR analog design based on 13 mm$^2$ pixels. Furthermore, two shower separation is excellent down to the millimeter scale. Geant4 simulation results will be presented demonstrating these expectations.

Presentation materials

ILCX-brau.pdf