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An 8-channels read-out front-end for LHC ATLAS Muon-Drift-Tubes detectors is presented (8xAFE). The system is composed by the cascade of the analog signal processing FrontEnd and of the Wilkinson A/D (to perform voltage-to-time conversion for time-over-threshold detection). The sensitivity at the output of the analog signal processing chain is 13.8mV/fC, while the Equivalent-Noise-Charge (ENC) is...
In the ATLAS Muon Spectrometer, Monitored Drift Tube (MDT) chambers and sMDT chambers with half of the tube diameter of the MDTs are used for precision muon track reconstruction. The sMDT chambers are designed for operation at high counting rates due to neutron and gamma background irradiation expected for the HL-LHC and future hadron colliders. The existing MDT read-out electronics uses bipolar signal...
Phase grating structure has the ability to converge light. We have introduced it to couple with superconducting nanowire single photon detector (SNSPD) to enhance its response for light. The effects of the coupling structure parameters on the enhancement have been studied systematically by FDTD method. Our numerical simulation show that the optical density arriving on nanowires of SNSPDs can be enhanced...
Over the past two years, data have been collected at an array of hydrophones in a search for acoustic signatures of ultra-high energy neutrinos from space. The Study of Acoustic Ultra-high energy Neutrino Detection (SAUND) is a first step towards developing a novel detection method for one of the outstanding problems of both particle physics and astrophysics. The project has produced the first measurement...
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