Research interests in our research group

The group specializes in applied research around nuclear- and accelerator-based technology and operates the Radiation Effects Facility, RADEF, for the studies of radiation effects in electronics and related materials. RADEF officially became an ESA-supported European Component Irradiation Facility (ECIF) in 2005 [ESA/ESTEC Contracts No.18197/04/NL/CP and 4000111630/14/NL/PA]. Since then the group has carried out irradiation tests not only for ESA and the European space industry, but also for other world leading space organizations (e.g. NASAJAXACNES), companies and universities. 

RADEF’s specialty is to provide high penetration heavy ion cocktail beams, protons in wide energy range and energetic electrons. For these the RADEF group utilizes combination of JYFL's ECR ion sources and K-130 cyclotron, and the LINAC electron accelerator. Because the emerging technologies make integrated circuits more susceptible to radiation, the group is expanding its research activities toward the radiation effects in avionics and ground level systems.

Selected publications

Heavy-Ion-Induced Degradation in SiC Schottky Diodes : Incident Angle and Energy Deposition Dependence

A. Javanainen, M. Turowski, K.F. Galloway, C. Nicklaw, V. Ferlet-Cavrois, A. Bosser, J.-M. Lauenstein, M. Muschitiello, F. Pintacuda, R. A. Reed, R.D. Schrimpf, R.A. Weller, and A. Virtanen

IEEE Transactions on Nuclear Science, vol. 64, no. 8, (2017), pp. 2031-2037


Determination of electronic stopping powers of 0.05–1 MeV/u 131Xe ions in C-, Ni- and Au-absorbers with calorimetric low temperature detectors

A. Echler, P. Egelhof, P. Grabitz, H. Kettunen, S. Kraft-Bermuth, M. Laitinen, K. Müller, M. Rossi, W.H. Trzaska, Wladyslaw and A. Virtanen

Nucl. Inst. Meth. B, vol. 391, (2017), pp. 38-51


High-Energy Electron-Induced SEUs and Jovian Environment Impact

M. Tali, R. García Alía, M. Brugger, V. Ferlet-Cavrois, R. Corsini, W. Farabolini, A. Mohammadzadeh, G. Santin, and A. Virtanen

IEEE Transactions on Nuclear Science, vol. 64, no. 8, (2017), pp. 2016-2022