# Continuous Development

## ELDRS – An Experimental Survey

ELDRS (enhanced low dose rate sensitivity) of electronic components is important for component operation in a low dose rate field, e.g. for satellites. Low dose rates and high total dose levels need long test duration and create high testing costs. An accelerated testing method using switching of high and low dose rates has been investigated. Statistical analysis has been performed to decrease test sample size.

Reference and Web-Link: Wind, M., Beck, P.; Boch, J.; Dusseau, L.; Latocha, M.; Poizat, M.; Zadeh, A., Applicability of the Accelerated Switching Test Method - A Comprehensive Survey, Radiation Effects Data Workshop (REDW), 2011.
http://eldrs.net

RADFET is a small type of integrating dosimeter based on a field effect transistor. The radiation response to photons, electrons, protons and neutrons of different energies has been modelled with Monte Carlo simulation (FLUKA, GEANT4) and compared to experimental measurements.

Reference: Wind, M.; Beck, P.; Jaksic, A., Investigation of the Energy Response of RADFET for High Energy Photons, Electrons, Protons, and Neutrons, IEEE Transactions on Nuclear Science, Volume: 56 Issue: 6, Page(s): 3387 – 3392, 2009.

## e2RAD – Shielding of Energetic Electrons

The performance of graded shielding of aluminium, lead and tantalum in energetic electron fields is investigated. Monte Carlo codes simulations using FLUKA and GEANT4 are compared with experimental measurements (5 MeV - 50 MeV). The results will be used for ESA’s Jupiter Icy Moons Explorer (JUICE) mission.

Reference: Wind M., Bagalkote J., Beck P., Latocha M., Georg D., Stock M., Nieminen P., Truscott P.; e2-RAD: Results of the ESA Energetic Electrons Radiation Assessment Study, NSREC Contribution at the IEEE Nuclear and Space Radiation Effects Conference, Paris, 2014.