16–20 Jun 2025
Laboratori Nazionali di Frascati INFN
Europe/Rome timezone

X-ray imaging detectors based on optical active defects induced in lithium fluoride crystals and films

20 Jun 2025, 12:20
20m
Aula B. Touschek (Laboratori Nazionali di Frascati INFN)

Aula B. Touschek

Laboratori Nazionali di Frascati INFN

Via E. Fermi 54 00044 Frascati (RM)

Speaker

Francesca Bonfigli (ENEA C.R. Frascati)

Description

The study and the development of innovative imaging detectors represent a crucial element in the field of X-ray imaging, mainly to overcome some of the limits of the standard ones. In this work an overview of the main results obtained during the study and the development of imaging detectors based on optically active point defects produced by X radiation in lithium fluoride (LiF) crystals and films will be presented. The LiF detectors are based on optical reading of visible photoluminescence produced by aggregated colour centres (CCs), locally produced by X radiation, and among their peculiarities, noteworthy ones are their very high intrinsic spatial resolution across a large field of view, wide dynamic range and versatility.
LiF-based detectors for extreme ultraviolet radiation, soft and hard X-rays are currently under investigation for imaging applications with laboratory radiation sources, e.g. laser-driven plasma sources and conventional X-ray tubes, as well as large-scale facilities, e.g. synchrotrons and free-electron lasers. The achieved results confirm that LiF-based detectors are powerful and versatile tools for X-ray imaging.

Primary authors

Francesca Bonfigli (ENEA C.R. Frascati) Dr Sabina Botti (ENEA C.R. Frascati) Dr Rosa Maria Montereali (ENEA C.R. Frascati and Present address: V. A. Cassani, 39 00046 Grottaferrata (RM), Italy) Enrico Nichelatti (ENEA C.R. Casaccia, Roma) Valentina Nigro (ENEA C.R. Frascati) Massimo Piccinini (ENEA C.R. Frascati) Maria Aurora Vincenti (ENEA C.R. Frascati)

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