Speaker
Dr
Nicolas ANDRE
(IRAP/CNRS)
Description
Radiation noise and Total Ionizing Dose (TID) are very serious issues for any instrument proposed to missions that operate in intense radiation environments like JUICE or RBSP. Here we discuss issues and mitigation techniques related to penetrating particle background noise in particle sensors with illustrations taken from real spacecraft measurements. Whereas passive shielding can efficiently reduce TID and protect sensor subsystems (electronics) it cannot alone reduce the background noise to the low level required to fulfil ambitious science objectives. We will illustrate how the combination of both passive multi-layered shielding and active shielding techniques can achieve the desired goal. We will show some general results from our in-house GEANT-4 simulations as well as our laboratory tests and validation of shielded and unshielded detector’s response in relevant high-energy electron environments that validate this approach.
Primary author
Dr
Nicolas ANDRE
(IRAP/CNRS)
Co-authors
Dr
Andrei FEDOROV
(IRAP/CNRS)
Mr
Jean RUBIELLA-ROMEO
(IRAP/CNRS)
