Speaker
Dr
Stefan Metzger
(Fraunhofer INT)
Description
Fraunhofer INT develops systems for onboard radiation sensing. Onboard in this context means on printed circuit boards (PCB) inside electronic boxes in close proximity to radiation sensitive electronic devices. The goals of these radiation sensor systems are:
- they should be simple, robust, cheap and easy to integrate,
- it should be possible to measure total ionizing dose (TID) and/or to
detect solar particle events (SPE) locally on the PCB,
- they can support anomaly investigation.
This ability to measure dose and/or particle fluxes on the PCB is particularly of interest as this is where radiation hurts the most. Furthermore it can help to reduce radiation design margins for successive missions because you get a better knowledge of the received dose inside your electronic box in a given environment. In addition in the case of in orbit verification or validation (IOV) missions it is of major importance to verify the predicted reliability of your design against the actual dose received.
Our approach is to add as little as possible devices and make use of already installed hardware e.g. microprocessors to operate them. And the output of those sensor devices should already be digital. So we propose to integrate extra memory devices on the PCB such as non-volatile UV-EPROMs to measure dose or SRAMs to detect high energy (solar) particles.
Primary author
Dr
Stefan Metzger
(Fraunhofer INT)
Co-authors
Mr
Christoph Komrowski
(Fraunhofer INT)
Dr
Jochen Kuhnhenn
(Fraunhofer INT)
Dr
Michael Steffens
(Fraunhofer INT)
Dr
Stefan Höffgen
(Fraunhofer INT)
Mr
Tobias Kündgen
(Fraunhofer INT)
