CMS
The Complex Materials Scattering (CMS) beamline at NSLS-II is a synchrotron instrument focused on x-ray scattering. It is located at 11-BM (bending magnet port) on the NSLS-II floor, and features a three-pole wiggler source. It can perform SAXS and WAXS experiments, focusing on high-throughput and 'intelligent' machine-guided exploration of parameter spaces.
Contents
Capabilities
CHX can perform a variety of experiments:
Performance
Energy
- Can perform experiments from 10 keV to 17 keV.
- Energy resolution (double multilayers): 10−3
q-range
- 0.003 Å−1 to 4.2 Å−1 (209 nm to 0.15 nm)
Resolution
Ultimate resolution (detector pixel limited) is 0.0002 Å−1.
| beam size (mm) | beam divergence (mrad) | pixel size (mm) | pixel FW @ 5 m (mrad) | pixel FW @ 5 m, 13.5 keV (Å−1) | resolution, FWHM (Å−1) |
|---|---|---|---|---|---|
| 0.200 | 0.10 | 0.172 | 0.03 | 0.00024 | 0.0007 |
| 0.100 | 0.05 | 0.172 | 0.03 | 0.00024 | 0.0002 |
Flux
Full beam (no slits), near sample position:
- 1.3 ×1012 ph/s/0.1%bw (13.5 keV, 250 mA ring current)
Beam Size
- Typical 50-100 µm
- Focusing to 20 µm possible.
Access
CMS has taken 'first light' and is currently undergoing technical commissioning. General User access is scheduled for summer 2017. Access will be possible through the NSLS-II proposal system, and through the CFN proposal system. Interested users should contact beamline staff.
Contact
- Beamline phone number: 631-344-1911
Beamline Staff
Masa Fukuto (beamline lead)
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Ruipeng Li (beamline staff)
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Kevin Yager (partner user beamline staff)
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Training
Software
- The CMS beamline configuration is stored at: https://github.com/NSLS-II-CMS.
- See Software for a list of software useful in SAXS/WAXS experiments.
