期刊
出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2016.06.095
关键词
Silicon sensors; Pixel detectors; Monolithic; CMOS; HV-MAPS; Mu3e
类别
资金
- Deutsche Forschungsgemeinschaft
- Mu3e project through an Emmy Noether grant
- IMPRS-PTFS
- Particle Physics [GRK 1940]
- HighRR research training group [GRK 2058]
- PRISMA Cluster of Excellence
Mu3e is a novel experiment searching for charged lepton flavor violation in the rare decay mu(+) -> e(+)e(-)e(+). Decay vertex position, decay time and particle momenta have to be precisely measured in order to reject both accidental and physics background. A silicon pixel tracker based on 50 mu m thin high voltage monolithic active pixel sensors (HV-MAPS) in a 1 T solenoidal magnetic field provides precise vertex and momentum information. The MuPix chip combines pixel sensor cells With integrated analog electronics and a periphery with a complete digital readout. The MuPix7 is the first HV-MAPS prototype implementing all functionalities of the final sensor including a readout state machine and high speed serialization with 1.25 Gbit/s data output, allowing for a streaming readout in parallel to the data taking. The observed efficiency of the MuPix7 chip including the full readout system is >= 99% in a high rate test beam. (C) 2016 Elsevier B.V. All rights reserved.
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