Speaker
Description
In some applications the transmission detectors are required to follow the path of radiation or to confirm that a particle entered a given volume. Moreover, such detectors should provide as much as possible information about the interacting radiation (energy deposited, time of interaction) and at the same time, change the particle state (direction, energy) as little as possible. We proposed a transmission detector based on thin plastic for detection of single electrons. The developed detector consists of thin (1mm) square (30x30mm) plastic scintillator (Nuvia SP32) read by SiPM arrays produced by FBK. These are linear arrays (1x36mm) coupled to one or two opposite faces (1x30mm) of the scintillator. Here, the initial measurements of timing resolution of this detector are presented. The reported data cover the coincidence measurements (versus fast, inorganic scintillator) with 511keV annihilation quanta from Na-22 gamma source as well as the timing resolution of 1MeV electrons (from Bi-207 internal conversion) passing through the detector. The recorded light yield is also presented.
