title: ID14 'Quadriga', a Beamline for Protein Crystallography at the ESRF.
abstract: The ESRF undulator beamline ID14 'Quadriga' is dedicated to monochromatic macromolecular crystallography. Using two undulators with 23 mm and 42 mm periods and a minimum gap of 16 mm installed on a high-beta section, it will provide high-brilliance X-ray beams at around 13.5 keV, as well as a wide tuneability between 6.8 and 40 keV. Based on the Troika concept, this beamline has four simultaneously operating experimental stations: three side stations, EH1, EH2 and EH3, using thin diamond crystals, and an end station, EH4, with a fast-scan double-crystal monochromator. Station EH3 has a kappa-diffractometer, and an off-line Weissenberg camera with a large 80 x 80 cm active area combined with a 2048 x 2048 CCD detector. During data collection the image plates are placed and removed by a robot located inside the hutch using a cassette system. After data collection the image plates are scanned with an off-line drum scanner. Station EH4 is designed for MAD applications, including Xe K-edge anomalous experiments, and is equipped with a 2048 x 2048 CCD detector on a pseudo 2theta arm. A common graphical user interface and a database will be available to cover all aspects of data collection, including strategy optimization. First results on the performance of the optics elements and initial crystallographic results are presented.
authors.affiliation: ESRF, BP 200, F-38043 Grenoble CEDEX, France.
authors.forename: S
authors.initials: S
authors.lastname: Wakatsuki
authors.forename: H
authors.initials: H
authors.lastname: Belrhali
authors.forename: E P
authors.initials: EP
authors.lastname: Mitchell
authors.forename: W P
authors.initials: WP
authors.lastname: Burmeister
authors.forename: S M
authors.initials: SM
authors.lastname: McSweeney
authors.forename: R
authors.initials: R
authors.lastname: Kahn
authors.forename: D
authors.initials: D
authors.lastname: Bourgeois
authors.forename: M
authors.initials: M
authors.lastname: Yao
authors.forename: T
authors.initials: T
authors.lastname: Tomizaki
authors.forename: P
authors.initials: P
authors.lastname: Theveneau