Speakers
Description
The AMS-100 Experiment, a magnetic spectrometer in space, will use plastic scintillators read out by silicon photomultipliers (SiPM) as a time of flight (ToF) detector. The scintillating fiber tracker (SciFi) of AMS-100 will use scintillating fibers (250~$\mu$m thick) read out by SiPMs. The ToF and the SciFi Tracker will be operated in vacuum at cryogenic temperatures.
We will present time resolution and signal shape measurements with a ToF-prototype in the temperature range of $+30^{\circ}$C to $-196^{\circ}$C. Long term tests of a ToF prototype in vacuum and thermocycling tests of the ToF components will be shown.
Thermal studies and light yield measurements of a SciFi tracker prototype at room temperature and at $-196^{\circ}$C in vacuum will be presented.
