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Single-electron pulse-height spectra in thin-gap parallel-plate chambers
Fonte, P.; Ferreira-Marques, Rui; Peskov, V.; Policarpo, A.Single-electron pulse-height spectra were measured in 0.6 and 1.2 mm parallel-plate chambers developed for the TOF system of the ALICE/LHC-HI experiment. Mixtures of Ar with ethane, isobutane, and SF6 were studied. The observed spectrum shows a clear peak for all gases, suggesting efficient single-electron detection in thin parallel-plate structures. The pulse-height spectrum can be described by the weighted su...
A spark-protected high-rate detector
Fonte, P.; Carolino, N.; Costa, L.; Ferreira-Marques, Rui; Mendiratta, S.; Peskov, V.; Policarpo, A.We developed a very low resistivity RPC-type detector, the anode of which was a plate made from materials with resistivity up to 5×107 [Omega] cm, the cathode being a metallic mesh preceded by a drift region. ; http://www.sciencedirect.com/science/article/B6TJM-3WX21P9-J/1/b56046b528d4eca75db4fdb2995304b5
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