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Beamtime available at CHESS, February 19 - April 1, 2014
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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:
A1 station, monochromatic wiggler source, suitable for Se SAD experiments as
well as native data collection, with ADSC Q-210 detector and ALS-type automounter.
F1 station, monochromatic wiggler source, suitable for Br SAD or native data,
with ADSC Q-270 detector and ALS-type automounter.
G1 station, wiggler 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) .
F3 station, bending magnet source with multilayer optics, tunable from
5.9 - 15.4 keV, suitable for SAD experiments using Fe, Co, etc., with
ADSC Q-4u 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)).
Microbeam (down to about 5 microns) using focusing capillary optics is
available on request at any of the stations.
======= 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.
Mail-in service is available - we will be pleased to collect (and
process, if you like) data from crystals that you send to us. Remote data
collection is available for experienced users.
======== Applying for time ========
Visit http://www.chess.cornell.edu and look at "Beam Time" under the
"Users" menu. All applications can be done on line, any time. Processing
of proposals is rapid, with a turn-around time of just a couple of weeks
for the usual Express Mode option.
More information is available on the web site, or contact administrator
Kathy Dedrick, k...@cornell.edu.
