María Jesús Alonso has a university degree in Chemistry, in Food Science and Technology, and a European Master in Advanced Chemistry, at Burgos University. Nowadays she is working as Electron Spin Resonance Laboratory Technician,in Geochronolgy area, and funded by the Ministry of Science, Innovation and Universities. She works in physico-chemical samples preparation and their irradiation. She is also in charge of the material dating with ESR measurements.