  I review the transfer of technology from accelerator-based equipment to
space-borne astroparticle detectors. Requirements for detection, identification
and measurement of ions, electrons and photons in space are recalled. The
additional requirements and restrictions imposed by the launch process in
manned and unmanned space flight, as well as by the hostile environment in
orbit, are analyzed. Technology readiness criteria and risk mitigation
strategies are reviewed. Recent examples are given of missions and instruments
in orbit, under construction or in the planning phase.
