8 research outputs found

    Reflection circular polarizers for XUV light: a theoretical study

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    The phaseshifting properties of multilayer transmission filters in the XUV region are examined. The possibility of changing the polarization state of electromagnetic radiation from linear to circular by means of such devices is carefully considered using a realistic model and proper optimization criteria. The performances of different transmission multilayers in some energy windows are presented

    Design of a low-energy extended UV beamline for bending magnet radiation

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    The design of a beamline, covering the energy range from 5 to 200 eV, based on a double incidence spherical gratings monochromator designed for ELETTRA bending magnet radiation is described. The monochromator consists of two interchangeable sets of gratings working one at normal incidence and the other at grazing incidence, to cover the entire spectral interval. The photon energy range of interest is covered with five gratings (two at normal and three at grazing incidence) achieving a resolving power of the order of 10000 and a photon flux approximately 10 12 (photons/s/0.1% bandwidth/mm 2) at the sample position

    High flux and high resolution beamline for elliptically polarized radiation in the vacuum ultraviolet and soft x-ray regions

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    A dedicated beamline with a broad energy range of photons and with high flux and a high degree of circular polarization has been designed for the ELETTRA storage ring. The beamline exploits the circularly polarized radiation produced by an electromagnetic elliptical wiggler and cover the (5-1200) eV photon energy range using a double-incidence spherical grating monochromator

    A multi-element psychosocial intervention for early psychosis (GET UP PIANO TRIAL) conducted in a catchment area of 10 million inhabitants: study protocol for a pragmatic cluster randomized controlled trial

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    Multi-element interventions for first-episode psychosis (FEP) are promising, but have mostly been conducted in non-epidemiologically representative samples, thereby raising the risk of underestimating the complexities involved in treating FEP in 'real-world' services
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