Using a system of four GEMs operating in tandem and coupled to pad readout, we have demonstrated the detection of single electrons in ethane at 1 bar. The paper presents measurements of single electron pulse height distributions, total gas gain measurement and calculation, pad-to-pad cross-talk, quenching capability, high rate capability, charging effects, etc. We describe the overall operation...

Modifications to the transmission line model developed at the High Voltage Research Institute, Tomsk, USSR, are presented and compared between each other and with the modification proposed by the ItalianSwiss research team. The modifications considered differ from each other by the height dependent attenuation factor for the return stroke current pulse intensity. All of the attenuation factors,...

Measured response functions and low photon yield spectra of silicon photomultipliers (SiPM) were compared to multi-photoelectron pulse-height distributions generated by a Monte Carlo model. Characteristic parameters for SiPM were derived. The devices were irradiated with 14MeV electrons at the Mainz microtron MAMI. It is shown that the first noticeable damage consists of an increase in the rate...

Pacs:29.40-n,29.40Wk A method for plasma delay and pulse-height defect corrections for Si surface barrier detectors (SBD) is presented. Based on known empirical formulae, simple approximations involving the measured time-of-flight (TOF) and energy of the ions were found and a mass reconstruction procedure was developed. The procedure was applied for obtaining the fission fragment mass and angul...