Speaker
Description
Monolithic active pixel sensors (MAPS) are attractive candidates for the next generation of vertex and tracking detectors for future lepton colliders. Especially an only recently accessible 65 nm CMOS imaging technology, that allows for higher logic density at lower power consumption compared to currently used imaging processes, is of high interest. To investigate this technology, explore the design challenges of porting a hybrid pixel detector architecture into a monolithic chip and to exercise the digital-on-top design methodology, the H2M (Hybrid-to-Monolithic) test chip has been developed and manufactured. It features a 64x16 pixel matrix with a pitch of 35 × 35 µm², resulting in a total active area of approximately 1.25 mm². The sensitive pixel matrix is designed in the so called n-gap layout to optimise charge collection and to minimise charge sharing between pixels to boost the detection efficiency.
This contribution first introduces the H2M chip and gives an overview of the readout that is based on the Caribou DAQ system. Laboratory optimisation of the settings and calibration results will be presented, as well as performance results from test-beam measurements with electrons at the DESY-II test beam and pions at the CERN SPS test beam.
| Type of presentation (in-person/online) | in-person presentation |
|---|---|
| Type of presentation (scientific results or project proposal) | Presentation on scientific results |
