| Popis: |
The study of electron induced molecular fragmentation processes in fast-beam experiments sets high demands on the technical realization of appropriate detection techniques. A complete reconstruction of the total kinetic energy release and thus detailed physical information of this process can only be deduced from the fully correlated measurement of distances. Therefore, the reaction product detector must be able to measure both the impact positions on the detectors surface as well as the time difference between impacts with the highest resolution. In this work a new timing readout for the 3D-imaging detector NICE at the Cryogenic Storage Ring in Heidelberg was set up and tested for the first time. The upgrade is based on the silicon photomultiplier technology, employing a multi-pixel detector with high intrinsic time resolution. First performance test show promising results: it was possible to resolve spatially well separated impacts with a time difference down to zero, exceeding the time resolution limit of the pre-existing setup. |
