Jun 8 – 10, 2021
Europe/Rome timezone

Confocal fluorescence microscopy and confocal Raman microspectroscopy of X-ray irradiated LiF crystals

Jun 10, 2021, 2:40 PM
20m
Contribution type Session

Speaker

Francesca Bonfigli (ENEA C.R. Frascati, Fusion and Technologies for Nuclear Safety and Security Dep., Photonics Micro- and Nano-structures Laboratory, FSN-TECFIS-MNF,V. E. Fermi, 45, 00044 Frascati (Rome), Italy)

Description

X-ray detectors based on the photoluminescence of radiation-induced color centers (CCs) locally produced in lithium fluoride (LiF) crystals will be discussed. Among the peculiarities of LiF-based detectors, noteworthy ones are their very high intrinsic spatial resolution across a large field of view, wide dynamic range and versatility. LiF crystals irradiated with monochromatic X-rays (8 e 16 keV) at Anka synchroton light source (Karlsruhe, Germany) and with the broadband white beam spectrum of the synchrotron bending magnet have been investigated with optical spectroscopy, laser scanning confocal microscopy in fluorescence mode and confocal Raman microspectroscopy. The penetration depths in LiF of the X-rays used for irradiation allowed to produce volumetric distributions of CCs in the crystals. 3D characterizations of the X-ray-induced CC distributions have been performed with both confocal techniques. The combination of capability of a LiF crystal to register volumetric X-ray mapping with the optical sectioning operations of the confocal techniques has allowed performing 3D reconstructions of the X-ray colored volumes and it could provide advanced tools for 3D X-ray detection.

Primary authors

Francesca Bonfigli (ENEA C.R. Frascati, Fusion and Technologies for Nuclear Safety and Security Dep., Photonics Micro- and Nano-structures Laboratory, FSN-TECFIS-MNF,V. E. Fermi, 45, 00044 Frascati (Rome), Italy) Sabina Botti (ENEA C.R. Frascati, Fusion and Technologies for Nuclear Safety and Security Dep., Photonics Micro- and Nano-structures Laboratory, FSN-TECFIS-MNF,V. E. Fermi, 45, 00044 Frascati (Rome), Italy) Rosa Maria Montereali (ENEA C.R. Frascati, Fusion and Technologies for Nuclear Safety and Security Dep., Photonics Micro- and Nano-structures Laboratory, FSN-TECFIS-MNF,V. E. Fermi, 45, 00044 Frascati (Rome), Italy) Enrico Nichelatti (ENEA C.R.Casaccia, Fusion and Technologies for Safety and Security Department, Photonics Micro-and Nano-structures Laboratory, FSN-TECFIS-MNF, V. Anguillarese 301, 00123 S.Maria di Galeria, Rome, Italy) Valentina Nigro (ENEA C.R. Frascati, Fusion and Technologies for Nuclear Safety and Security Dep., Photonics Micro- and Nano-structures Laboratory, FSN-TECFIS-MNF,V. E. Fermi, 45, 00044 Frascati (Rome), Italy) Massimo Piccinini (ENEA C.R. Frascati, Fusion and Technologies for Nuclear Safety and Security Dep., Photonics Micro- and Nano-structures Laboratory, FSN-TECFIS-MNF,V. E. Fermi, 45, 00044 Frascati (Rome), Italy) Maria Aurora Vincenti (ENEA C.R. Frascati, Fusion and Technologies for Nuclear Safety and Security Dep., Photonics Micro- and Nano-structures Laboratory, FSN-TECFIS-MNF,V. E. Fermi, 45, 00044 Frascati (Rome), Italy) Angelica Cecilia (Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany )

Presentation materials

There are no materials yet.