Transition radiation detector based on the usage of thin scintillators

Abstract Transition Radiation Detector based on the usage of thin scintillators (Sci-TRD) is proposed for particle identification. Such type of TRD may be especially interesting for space apparatus because of no gas. The proposed detector is based on the thin transparent films with incorporated micro-granules of Lu 2 SiO 5 :Ce scintillator. Scintillation signal produced by absorbed TR photons is registered by SiPM connected to WLS fibers. Results of measurements with samples of such films are presented. The clear signals from 55 Fe ( ∼ 5 keV ) and 241 Am ( ∼ 16 keV ) gamma sources were observed. The detailed Monte Carlo simulations of such kind of TRD are also presented.