Characterization of resistive Micromegas detectors for the upgrade of the T2K Near Detector Time Projection Chambers
نویسندگان
چکیده
The second phase of the T2K experiment is expected to start data taking in autumn 2022. An upgrade Near Detector (ND280) under development and includes construction two new Time Projection Chambers called High-Angle TPC (HA-TPC). endplates these TPCs will be paved with eight Micromegas type charge readout modules. detector amplification structure uses a resistive anode spread charges over several pads improve space point resolution. This innovative technique combined bulk-Micromegas technology compose "Encapsulated Resistive Anode Micromegas" detector. A prototype has been designed, built exposed an electron beam at DESY II test facility. have used characterize spreading produce RC map. Spatial resolution better than 600 $\mu$m energy 9% are obtained for all incident angles. These performances fulfil requirements ND280 TPC.
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research
سال: 2022
ISSN: ['1872-9576', '0168-9002']
DOI: https://doi.org/10.1016/j.nima.2021.166109