Open AccessCompound refractive lenses as prefocusing optics for X‐ray FEL radiation
Author(s) -
Heimann Philip,
MacDonald Michael,
Nagler Bob,
Lee Hae Ja,
Galtier Eric,
Arnold Brice,
Xing Zhou
Publication year - 2016
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577516001636
Subject(s) - beamline , optics , x ray optics , linear particle accelerator , physics , aperture (computer memory) , x ray , synchrotron radiation , beam (structure) , photon energy , laser , photon , acoustics
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.