title: Micro X-ray Fluorescence Imaging in a Tabletop Full Field-X-ray Fluorescence Instrument and in a Full Field-Particle Induced X-ray Emission End Station.
abstract: A full field-X-ray camera (FF-XRC) was developed for performing the simultaneous mapping of chemical elements with a high lateral resolution. The device is based on a conventional CCD detector coupled to a straight shaped polycapillary. Samples are illuminated at once with a broad primary beam that can consist of X-rays or charged particles in two different analytical setups. The characteristic photons induced in the samples are guided by the polycapillary to the detector allowing the elemental imaging without the need for scanning. A single photon counting detection operated in a multiframe acquisition mode and a processing algorithm developed for event hitting reconstruction have enabled one to use the CCD as a high energy resolution X-ray detector. A novel software with a graphical user interface (GUI) programmed in Matlab allows full control of the device and the real-time imaging with a region-of-interest (ROI) method. At the end of the measurement, the software produces spectra for each of the pixels in the detector allowing the application of a least-squares fitting with external analytical tools. The FF-XRC is very compact and can be installed in different experimental setups. This work shows the potentialities of the instrument in both a full field-micro X-ray fluorescence (FF-MXRF) tabletop device and in a full field-micro particle induced X-ray emission (FF-MPIXE) end-station operated with an external proton beam. Some examples of applications are given as well.
authors.affiliation: CNR, Istituto per i Beni Archeologici e Monumentali , Via Biblioteca 4, 95124 Catania, Italy.|INFN, Laboratori Nazionali del Sud , Via Santa Sofia 62, 95123, Catania, Italy.
authors.forename: Francesco Paolo
authors.initials: FP
authors.lastname: Romano
authors.affiliation: INFN, Laboratori Nazionali del Sud , Via Santa Sofia 62, 95123, Catania, Italy.|Università di Catania , Dipartimento di Fisica e Astronomia, Via A. Doria 6, 95123, Catania, Italy.
authors.forename: Claudia
authors.initials: C
authors.lastname: Caliri
authors.affiliation: INFN, Laboratori Nazionali del Sud , Via Santa Sofia 62, 95123, Catania, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Cosentino
authors.affiliation: INFN, Laboratori Nazionali del Sud , Via Santa Sofia 62, 95123, Catania, Italy.
authors.forename: Santo
authors.initials: S
authors.lastname: Gammino
authors.affiliation: INFN, Laboratori Nazionali del Sud , Via Santa Sofia 62, 95123, Catania, Italy.
authors.forename: David
authors.initials: D
authors.lastname: Mascali
authors.affiliation: CNR, Istituto per i Beni Archeologici e Monumentali , Via Biblioteca 4, 95124 Catania, Italy.|INFN, Laboratori Nazionali del Sud , Via Santa Sofia 62, 95123, Catania, Italy.
authors.forename: Lighea
authors.initials: L
authors.lastname: Pappalardo
authors.affiliation: INFN, Laboratori Nazionali del Sud , Via Santa Sofia 62, 95123, Catania, Italy.|Università di Catania , Dipartimento di Fisica e Astronomia, Via A. Doria 6, 95123, Catania, Italy.
authors.forename: Francesca
authors.initials: F
authors.lastname: Rizzo
authors.affiliation: IFG Institute for Scientific Instruments GmbH , Rudower Chaussee 29/31, 12489 Berlin, Germany.
authors.forename: Oliver
authors.initials: O
authors.lastname: Scharf
authors.affiliation: INFN, Laboratori Nazionali del Sud , Via Santa Sofia 62, 95123, Catania, Italy.
authors.forename: Hellen Cristine
authors.initials: HC
authors.lastname: Santos