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.

Capabilities

CHX can perform a variety of experiments:

• SAXS
• GISAXS
• GTSAXS
• WAXS
• GIWAXS

Performance

Energy

• Can perform experiments from 10 keV to 17 keV.
• Energy resolution (double multilayers): 10⁻³

q-range

• 0.002 Å⁻¹ to 4.2 Å⁻¹

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.

Training

• Beamline Specific Training Form

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.

See Also

• Official site

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)
0.1	0.05	0.172	0.03	0.00024	0.0002