Compound refractive lenses as prefocusing optics for X-ray FEL radiation

The performance of X-ray free-electron laser beamlines may be limited by the angular aperture. Compound refractive lenses (CRLs) can be employed to prefocus the X-ray beam, thereby increasing the beamline transmission. A prefocusing CRL was implemented in the X-ray transport of the Matter under Extreme Conditions Instrument at the Linac Coherent Light Source. A significant improvement in the beamline transmission was calculated over the 3–10 keV photon energy range. At 5 keV, the relative X-ray intensity was measured and a factor of four increase was seen in the beamline transmission. The X-ray focus was also determined by the ablation imprint method.

Source: Journal of Synchrotron Radiation - February 17, 2016 Category: Physics Authors: Heimann, P.MacDonald, M.Nagler, B.Lee, H.J.Galtier, E.Arnold, B.Xing, Z. Tags: compound refractive lens X-ray free-electron laser X-ray optics research papers Source Type: research