28–30 Nov 2011
Laboratori Nazionali di Frascati <!-- ID_UTENTE=505 -->
Europe/Rome timezone

Optical characterization of lithium fluoride detectors for broadband X-ray imaging

29 Nov 2011, 14:59
1m
Aula Bruno Touschek (Building 36): <a target= (Laboratori Nazionali di Frascati <!-- ID_UTENTE=505 -->)

Aula Bruno Touschek (Building 36): <a target=

Laboratori Nazionali di Frascati <!-- ID_UTENTE=505 -->

Via E. Fermi, 40

Speaker

Mrs Schirin Heidari Bateni (Physics Department, University Roma Tre, Via della Vasca Navale 84, 00146 Rome, Italy)

Description

Novel X-ray imaging detectors based on photoluminescence of color centers in lithium fluoride have been proposed and tested for extreme ultraviolet, soft and hard X-rays up to 10 keV. For the first time we present the optical characterization of LiF crystals and thin films irradiated at the TOPO-TOMO beamline of synchroton light source Anka (Karlsruhe, Germany) in the energy range (2-40 keV) for several exposure times. Absorption and photoluminescence spectra were analysed to obtain the optical response of the LiF-based detectors, which are characterized by a linear behaviour over two decades in the investigated radiation dose interval. High resolved X-ray imaging of commercial test patterns has been obtained on LiF crystals and films by optical readout with a confocal laser fluorescence microscope.

Primary authors

Dr Angelica Cecilia (Research Center Karlsruhe/K.I.T., Institute for Synchrotron Radiation – ANKA, Germany) Dr Daniele Pelliccia (School of Physics, Monash University - ARC Centre of Excellence for Coherent X-ray Science, Victoria, Australia) Prof. Fabrizia Somma (Physics Department, University Roma Tre, Via della Vasca Navale 84, 00146 Rome, Italy) Mrs Francesca Bonfigli (ENEA, Photonics Micro- and Nano-structures Lab., UTAPRAD-MNF, C.R. Frascati, Via E. Fermi 45, 00044 Frascati (Rome), Italy) Mrs Maria Aurora Vincenti (ENEA, Photonics Micro- and Nano-structures Lab., UTAPRAD-MNF, C.R. Frascati, Via E. Fermi 45, 00044 Frascati (Rome), Italy) Dr Rosa Maria Montereali (ENEA, Photonics Micro- and Nano-structures Lab., UTAPRAD-MNF, C.R. Frascati, Via E. Fermi 45, 00044 Frascati (Rome), Italy) Mrs Schirin Heidari Bateni (Physics Department, University Roma Tre, Via della Vasca Navale 84, 00146 Rome, Italy)

Presentation materials