@article {Poletto2014,
	title = {Spectrometer for X-ray emission experiments at FERMI free-electron-laser},
	journal = {Review of scientific instruments},
	volume = {85},
	year = {2014},
	publisher = {American Institute of Physics},
	address = {[Woodbury, N.Y.]},
	abstract = {A portable and compact photon spectrometer to be used for photon in-photon out experiments, in particular x-ray emission spectroscopy, is presented. The instrument operates in the 25-800 eV energy range to cover the full emissions of the FEL1 and FEL2 stages of FERMI. The optical design consists of two interchangeable spherical varied-lined-spaced gratings and a CCD detector. Different input sections can be accommodated, with/without an entrance slit and with/without an additional relay mirror, that allow to mount the spectrometer in different end-stations and at variable distances from the target area both at synchrotron and at free-electron-laser beamlines. The characterization on the Gas Phase beamline at ELETTRA Synchrotron (Italy) is presented. (C) 2014 AIP Publishing LLC.},
	issn = {0034-6748},
	doi = {10.1063/1.4898315},
	author = {Poletto, L. and Frassetto, F. and Miotti, P. and Di Cicco, A. and Finetti, P. and Grazioli, C. and Iesari, F. and Kivimaeki, A. and Stagira, S. and Coreno, M.}
}
