Low-energy radiation dosimetry from a density functional theory approach

Who: Jacques-Louis Guerda Massilon (Associate Professor, UNAM, Mexico)

Place: nanoGUNE seminar room, Tolosa Hiribidea 76, Donostia - San Sebastian 

Lithium fluoride (LiF) is one of the typical alkali fluorides that has been extensively studied for years. Mg and Ti-doped LiF is also the most common thermoluminescent (TL) dosimeter used in several applications. Nevertheless, despite many years of research, the basic processes that give rise to the TL-response induced by low-energy radiation fields are still not well understood. In this seminar, we will present electronic structure calculations of defect states induced by Mg and Ti interstitials or Mg-substitute in LiF as well as the localization of secondary electrons produced during the radiation interaction using first-principles.

Instituto de Física, Universidad Nacional Autónoma de México, 04510 Coyoacan Mexico City, México

Pacific Northwest National Laboratory, Richland, 99352 Washington State, USA

Instituto de Fusión Nuclear Guillermo Velarde, Universidad Politécnica de Madrid, 28006 Madrid, Spain