6533b852fe1ef96bd12aad38
RESEARCH PRODUCT
Design of large scale sensors in 180 nm CMOS process modified for radiation tolerance
Daniela BortolettoNorbert WermesValerio DaoC. BespinThanushan KugathasanK. MoustakasT. WangPetra RiedlerT. HironoY. DegerliHeinz PerneggerP. SchwemlingL. Simon ArgemiP. RymaszewskiCraig ButtarM. MunkerTomasz HemperekW. SnoeysMateusz DyndalR. CardellaI. Asensi TortajadaI. Asensi TortajadaF. PiroP. FreemanP. FreemanEnrico Junior SchioppaI. BerdalovicC. A. Solans SanchezArchana SharmaArchana SharmaMarlon BarberoFlorian DachsL. Flores Sanz De AcedoL. Flores Sanz De AcedoA. F. HabibI. Caicedosubject
Nuclear and High Energy PhysicsOn-chip clusteringPhysics::Instrumentation and Detectors01 natural sciencesCMOS sensors ; Tracking detectors ; Monolithic sensors ; MAPS ; On-chip clustering030218 nuclear medicine & medical imaging03 medical and health sciencesTracking detectors0302 clinical medicinesemiconductor detector: pixelRadiation toleranceCMOS sensors0103 physical sciencesMAPSElectronic engineeringIrradiation[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]numerical calculationsInstrumentationradiation: damagePhysicsPixelirradiation010308 nuclear & particles physicstracking detector: upgradecharge: yieldBandwidth (signal processing)ATLASDigital architectureChipUpgradeAsynchronous communicationMonolithic sensorsdescription
International audience; The last couple of years have seen the development of Depleted Monolithic Active Pixel Sensors (DMAPS) fabricated with a process modification to increase the radiation tolerance. Two large scale prototypes, Monopix with a column drain synchronous readout, and MALTA with a novel asynchronous architecture, have been fully tested and characterized both in the laboratory and in test beams. This showed that certain aspects have to be improved such as charge collection after irradiation and the output data rate. Some improvements resulting from extensive TCAD simulations were verified on a small test chip, Mini-MALTA. A detailed cluster analysis, using data from laboratory and test beam studies, at different biases, for high and low thresholds and before and after irradiation is presented, followed by detailed simulations showing that the digital architecture for both chips is capable of dealing with data rates of around 80 MHz/cm2 similar to what it is expected in the outer layer of the ATLAS inner tracker upgrade for the HL-LHC. The data rate capability and output bandwidth are studied using realistic hits generated by the ATLAS detector simulation framework.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-12-14 |