200ps TOF-resolution, new DDL, planning for PRESPEC
Posted on March 29th, 2011 by Michael Pfeiffer
Meanwhile we managed to tag single alpha particles from an triple calibration source. Thereby we achived a spatial resolution of ~210ps timing resolution. After nearly one year of continuous operation we found some strange artefacts in the projections of the second unit. We found some strange sputter-like effects on the DDL and replaced it by a new, gold-coated one. After some tests with the new DDL the whole setup is running again. At the moment we are plannig a mounting and some modifications for the upcoming PRESPEC campaign, especially the accpeted UMBRELLA proposal, at the S4 degrader behind the FRS at GSI.