==================================================== Beamtime available at CHESS, Nov. 1 - Dec. 21, 2017 ====================================================
The CHESS/MacCHESS facility, located at Cornell University in Ithaca, NY, invites macromolecular crystallographers and users of BioSAXS to apply for time on one or more of our stations: F1 station, monochromatic wiggler source, suitable for crystallographic data collection, at an energy appropriate for Se SAD phasing. Equipped with Dectris Pilatus 6M detector and ALS-type automounter. G1 station, undulator source with multilayer optics, suitable for BioSAXS experiments, equipped with dual Pilatus 100-K detectors, automated sample-handling, in-line SEC-SAXS capability; good data can be obtained over q-range 0.006 - 0.7 (1/Å) . A1 station, monochromatic undulator source, suitable for crystal screening and native crystallographic data collection, with ADSC Q-210 detector. ===== Special options ====== Pressure cryocooling of (unfrozen) crystals is available by prearrangement. This method can reduce the damage induced by cryocooling, often with no need for cryoprotectants (Kim et al., Acta Cryst. D61, 881-890 (2005)). In some cases, it can reduce initial disorder (high mosaicity, anisotropic diffraction, some kinds of twinning). Contact Marian Szebenyi ([email protected]) for more information on pressure cryocooling. High-pressure and time-resolved BioSAXS techniques are under development and are available on a collaborative basis. Contact Richard Gillilan ([email protected]) if you are interested in cutting-edge BioSAXS work. ======= Support ======= CHESS/MacCHESS provides a high level of support for all users. We are very willing to help with non-standard experimental setups - just ask. Our staff scientists also invite collaborations for more extended projects investigating novel techniques. Remote data collection is available, as well as mail-in service. ======== Applying for time ======== Apply on-line at http://userdb.chess.cornell.edu. Applications are accepted at any time, but to ensure that there is time for full consideration of your proposal (especially if you have any special needs), please submit by September 1 for the upcoming run. More information is available at the web site http://www.chess.cornell.edu, or contact administrator Kathy Dedrick, [email protected].
