17-19 October 2018
Laboratori Nazionali di Frascati INFN
Europe/Rome timezone

BM08-LISA: the new Italian CRG XAS spectroscopy beamline at ESRF

17 Oct 2018, 12:00
30m
Aula Salvini (Laboratori Nazionali di Frascati INFN)

Aula Salvini

Laboratori Nazionali di Frascati INFN

Via E. Fermi 40 00044 Frascati (RM)

Speaker

Dr Alessandro Puri (CNR IOM OGG c/o ESRF, 71 Av des Martyrs Grenoble (France))

Description

LISA (Linea Italiana per la Spettroscopia di Assorbimento di raggi X) is the new italian CRG beamline at the European Synchrotron Radiation Facility (ESRF) dedicated to X-ray Absorption Spectroscopy (XAS). The optical layout consists in one collimating mirror, a double crystal monochromator (DCM) and a double toroid focusing mirror. Si and Pt coatings ensure an efficient rejection of harmonics. The DCM is equipped with two different pairs of thick crystals Si(311) and Si(111) to cover a wide energy range of 4-70 keV, which offers the possibility to probe the K and L edges of the most of Metals and Rare Earth elements. The design is compatible with the new EBS ring that will be operative after year 2020. The beamline provides a high photon flux (1011 ph/s) with a focused beam size < 200 µm and together with the fluorescence detectors available (a 12-channels HP-Ge and a 4-channels SDD) allows the analysis of small-sized or highly diluted samples. A liquid He/N2 cold finger cryostat and a compact furnace are available for measurements in a wide temperature range (10 - 1000 K), allowing in-situ chemical treatments and measurements under controlled atmosphere. In this contribution we present the present status and the future perspectives of the beamline.

Primary author

Dr Alessandro Puri (CNR IOM OGG c/o ESRF, 71 Av des Martyrs Grenoble (France))

Co-authors

Dr Francesco d'Acapito (CNR IOM OGG c/o ESRF, 71 Av des Martyrs Grenoble (France)) Dr Giovanni Orazio Lepore (CNR IOM OGG c/o ESRF, 71 Av des Martyrs Grenoble (France))

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