Speaker
Description
The highly integrated particle tracker consists of two Timepix3 ASIC-chip pixel detectors in close geometry and without shielding or collimators. The tracker is operated and readout by a space-designed radiation tolerant on-board payload computer (OPC) which also processes the extensive raw data produced by the pixel detectors (raw data rate up to 10 MB/s). Use of two detectors operated in sync with timing resolution 100 ns provide timing, spectral (energy loss) and enhanced tracking-directional resolving power. Wide field-of-view (nearly 2π) high angular resolution (< 1°) angular fluxes can be measured for energetic charged particles such as electrons above 1 MeV, protons above 5 MeV and ions above 50 MeV/u for omnidirectional fluxes up to E6 particles cm-2 s-1. Event-by-event processing and high-resolution spectral-tracking analysis enable to provide also selective (particle-event type discrimination) deposited energy distributions and LET spectra in wide range (0.1 – 500 keV/µm). Data products include characterization of the charged particle component of mixed-radiation fields with particle-type discrimination (electrons, protons, ions, X rays) and spectral/energy-loss range (low- and high-energy groups). Also detailed particle-type dose rates histograms can be generated. The whole payload (detector tracker + OPC) has a mass 150 g, power consumption 3 W, size < 9 cm and fits in 1/3 of a 1U Cubesat.
