2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/104005We report on a technique developed to diagnostic for non working readout channels of the Transition Radiation Tracker (TRT), one of the three inner detectors of the ATLAS experiment. From a detailled study, we show that 99.6 % of the readout channels of the TRT endcap-detector are perfectly operational.32 pagesInstrumentation and Detectorstext