processing methods, lead to the diploma for producing HTC-substrates, titled: “Phase compositions in the system Gadolinium-Alkaline-Earth-Manganese-Oxides, as function of the oxygen contend in the growth atmosphere [...] : “Light scattering examination during the crystallisation of lysozyme and on dedicated dynamic systems”. His application as a young graduate trainee for ESA, lead immediately to the recruitment as “post [...] operation of CERN radiation facilities, and up to radiation effects testing at both component and system level. Rubén is also coordinating the RADSAGA Marie Curie PhD network since 2017, and led the RADNEXT