Beamline 21-ID-F: Sector 21 - Insertion Device
LS-CAT
Life Sciences
Description
LS-CAT, APS Sector 21 is a canted undulator beamline with the downstream undulator providing fixed energy X-rays to two stations via diamond Laue monochromators. Flux on 21-ID-F is 10-15% higher than on 21-ID-G since it is the first monochromator in series. Energy is fixed near 12.7 keV to enable selenium SAD phasing.
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Supported Techniques
- Macromolecular crystallography
Beamline Controls and Data Acquisition
Arinax MD3-UP diffractometer software (with LS-CAT developed extensions) for sample mounting, centering, diagnostics, and data collection. VME EPICS/MEDM low-level interface, PMAC motion control, and Linux workstations for data collection and processing.
Detectors
Additional Equipment
- MD3-UP microdiffractometer
- UR robotic sample changer supporting UniPuck standard
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Local Contacts
Beamline Specs
Source |
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Monochromator Type |
C(111) |
Energy Range |
12.7 keV |
Resolution (ΔE/E) |
2 x 10 -4 |
Flux (photons/sec) |
1 x 10 12 @12.7 keV |
Beam Size (HxV) |
Focused |
50µm x 50µm
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For additional information see:
https://ls-cat.org/
Current Status:
Operational
Access Mode:
On-site
Remote
Mail-in
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