Opportunities of Si-microstrip LGAD for next-generation space detectors

Low Gain Avalanche Diode (LGAD) is a consolidated technology developed for particle detectors at colliders which allows for simultaneous and accurate time (<100 ps) and position (tens of μm) resolutions. It is a candidate technology that could enable for the first time 5D tracking in space using LGAD Si-microstrip tracking systems. The intrinsic gain of LGAD sensors may also allow to decrease the sensor thickness while achieving signal yields similar to those of Si-microstrips currently operated in Space. In this document we discuss the possible applications and breakthrough opportunities in next generation large area cosmic ray detectors and sub-GeV gamma-ray detectors that could be enabled by LGAD Si-microstrip tracking detectors in Space. We propose the design of a cost-effective instrument demonstrator on a CubeSat platform to enable and qualify the operations of LGAD Si-microstrip detectors in space. © Published under licence by IOP Publishing Ltd.