21 November 2011
University of Berne
Europe/Zurich timezone

Diffractive optics for focusing and characterization of hard X-ray free electron laser radiation

21 Nov 2011, 13:00
5m
205 (University of Berne)

205

University of Berne

Hallerstrasse 6 3012 Berne

Speaker

Petri Karvinen (Paul Scherrer Institut)

Description

The unique characteristics of the hard XFEL radiation impose new requirements for the focusing optics used when compared to hard synchrotron radiation. For example the heat loads caused by the extremely high photon flux quickly damage conventional optics such as Fresnel zone plates (FZPs) or diffraction gratings. Here we present results obtained using nanostructures based on diamond at Linac Coherent Light Source (LCLS). The focusing properties of diamond FZPs were measured using the imprint technique. The spot size was observed to be limited by the spectral bandwidth of the source to 320 nm FWHM. Also, a spectrometer setup based on a focusing diamond grating is presented with measured shot-to-shot spectra of LCLS beam.

Primary authors

Petri Karvinen (Paul Scherrer Institut) Simon Rutishauser (Paul Scherrer Institut)

Co-authors

Aldo Mozzanica (Paul Scherrer Institut) Christian David (Paul Scherrer Institut) David Fritz (SLAC National Accelerator Laboratory) Dominic Greiffenberg (Paul Scherrer Institut) Henrik Lemke (SLAC National Accelerator Laboratory) Krzywinski Jacek (SLAC National Accelerator Laboratory) Marco Cammarata (SLAC National Accelerator Laboratory) Sergey Gorelick (Paul Scherrer Institut)

Presentation materials