6533b86dfe1ef96bd12ca850

RESEARCH PRODUCT

MuPix8 — Large area monolithic HVCMOS pixel detector for the Mu3e experiment

M. ZimmermannA. HerkertL. HuthH. AugustinJ. KrögerSebastian DittmeierF. EhrlerA. WeberA. WeberAndré SchöningIvan PericC. GrzesikMridula PrathapanNiklaus BergerRudolf SchimassekJ. HammerichD. WiednerH. ZhangIurii SorokinF. Meier Aeschbacher

subject

PhysicsNuclear and High Energy PhysicsPixelComparatorPhysics::Instrumentation and Detectorsbusiness.industryDetectorReadout electronicsElectronOpticsbusinessInstrumentationVoltagePixel detector

description

Abstract The requirements of the ultra thin pixel detectors for the Mu3e experiment at PSI can be achieved by the HVCMOS technology, which allows the design of fast monolithic detectors. The latest nearly full size prototype, MuPix8, has a size of about 1 × 2 cm 2 . The pixel readout circuitry was fully redesigned in comparison to the previous MuPix versions. MuPix8’s readout electronics implement a new concept with two comparators and two different operation modes. One mode uses two threshold voltages for time walk correction, the other is a ramp-ADC. First tests show a detection efficiency of 99.6% for 4 GeV electrons.

yearjournalcountryeditionlanguage
2019-08-01Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
https://doi.org/10.1016/j.nima.2018.09.095