Giovanni Sostero

TL;DR: The paper describes the novel technical solutions adopted, namely, the design of a quasiperiodic undulator resulting in optimized suppression of higher harmonics over a large photon energy range (10-100 eV), the thermal stability of optics under high heat load via cryocoolers, and the end station interconnected setup allowing full access to off-beam and on-beam facilities.

TL;DR: The Super-ESCA beamline was designed for high resolution core level spectroscopy of adsorbates on single crystal surfaces using soft x-ray synchrotron radiation as discussed by the authors.

TL;DR: In this paper, a method to measure the groove density of a surface diffraction grating was developed, which consists of the measurement of the angle of a particular diffraction order, taking advantage of the extreme angular precision of the LTP.

TL;DR: In this paper, a self-scanning method is presented to adjust the focal plane position of the LTP with high precision by use of a pentaprism scanning technique, which can be set to better than 0.25 mm for a 1250mm-focal-length Fourier transform lens.

TL;DR: A precise measuring method for detecting the in situ distortion profile of a high-heat-load mirror for synchrotron radiation by use of a pentaprism long trace profiler (LTP) is presented and suggestions for improving the accuracy and stability are presented.