A stop-timing microchannel plate detector for multi-reflection time-of-flight mass analyzer

Abstract

A stop-timing microchannel detector with an integrated fast amplifier has been developed and its mechanical and electronic structure described in detail. A typical output amplitude of 1.1 V, rise time of 10 ns, noise amplitude of 2.5 mVrms and timing jitter of 23 ps of the detector have been obtained. The detector has tested with 133Cs1+ ions in the multi-reflection time-of-flight mass analyzer at the Spectrometer for Heavy Atom and Nuclear Structure (SHANS) and a mass resolving power of 19500 has been achieved for a total time-of-flight of 5.85 ms.