Characterization of the electronics for Micromegas (Micro-MEsh Gaseous Structure) detector at the n TOF experiment at CERN

At the neutron time-of-light facility n_TOF, Micromegas (Micro-MEsh Gaseous Structure) detectors are used for neutron induced cross-section measurements and neutron beam monitoring. For the optimum performance, the read-out chain has to be adjusted to the electronic properties of such detectors. The current signal of the Micromegas detector was measured to find a suitable input signal for the electronic calibration of preamplifiers. Consecutively, different current and charge amplifiers were characterized for their response to a Micromegas current pulse, in order to prepare for the measurement of the achievable energy resolution of the detector. Finally the measurements directly with the MGAS detectors are reported.