The μ-RWELL in High Energy Physics and beyond
JOURNAL OF INSTRUMENTATION(2024)
摘要
The mu-RWELL, a resistive Micro -Pattern Gaseous Detector with a single amplification stage, is crafted using a copper -clad polyimide foil intricately micro -patterned with a blind hole (well) matrix. This matrix is integrated into the readout Printed Circuit Board, complemented by thin Diamond -Like -Carbon sputtered resistive film, in order to mitigate the transition from streamer to spark regimes, enabling the attainment of substantial gains (>= 104). However, this arrangement diminishes the detector's capacity to withstand high particle fluxes. For low -rate applications, the simplest resistive configuration utilises a single resistive layer with edge grounding. This design, however, exhibits a non -uniform response under elevated particle irradiation. To overcome this behaviour, new current evacuation geometries have been developed. In this work, we examine the efficacy of various high -rate resistive layouts, trialled at the prestigious CERN H8-SpS and PSI pi M1 beam testing facilities. These designs are tailored to meet the demanding requisites of detectors operating in the HL-LHC environment, as well as those of future experiments at the next generation colliders, such as the FCC-ee/hh and CepC.
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关键词
Gaseous detectors,Micropattern gaseous detectors (MSGC,GEM,THGEM,RETHGEM,MHSP,MICROPIC,MICROMEGAS,InGrid,etc),Particle tracking detectors (Gaseous detectors)
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