National Synchrotron Light Source Seminar

"The Macromolecular Crystallography Beamline BL 13 - XALOC at the Synchrotron Alba"

Presented by Jordi Benach, CELLS - ALBA, Synchrotron Light Facility, Spain

Wednesday, September 14, 2011, 2:30 pm — Seminar Room, Bldg. 725

ALBA is a third generation 3-GeV synchrotron near Barcelona, Spain that is currently under commissioning. Out of the initial seven first-phase beamlines, BL13-XALOC is devoted to Macromolecular Crystallography (MX). The photon source of this beamline has been optimized to deliver the highest flux at the Se K-edge while keeping full tunability. The optics consists of a cryogenically cooled Si(111) channel-cut crystal monochromator and a pair of mirrors in a Kirkpatrick-Baez configuration. The end station includes a high accuracy single axis diffractometer and a removable mini-kappa mount. The end station is also equipped with an automated mounting robot that can deal with samples in cryo conditions or in crystallization plates. The main data collection detector is a photon-counting 6-Mpixel detector that offers outstanding capabilities like a very fast framing rate (12 images/second), a large dynamic range (20 bits, >10^6), and negligible dark current noise. Most of the components of BL13-XALOC have been installed and the control system is currently being finalized. The beamline is ready to start x-ray beam commissioning in October 2011 and it is expected to be opened to users during the first half of 2012.

Hosted by: Lonny Berman

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