NG3 SANS - Small Angle Neutron Scattering

Description:

NG3 SANS Schematic

Sponsored by the National Science Foundation as part of the Center for High Resolution Neutron Scattering (CHRNS), this instrument is installed on a dedicated neutron guide NG-3. Designed to cover a wide Q-range, from 0.015 nm^-1 to nearly 6 nm^-1, it is suitable for examining structural features in materials ranging from roughly 1 to 500 nm. At least 75% of the instrument time will be allocated to guest researchers by the Beam Time Allocation Committee (BTAC).

Specifications / Capabilities:

Q-Range	0.015 nm^-1 to 6.0 nm^-1
Size Regime	1 nm to 500 nm
Source	Neutron Guide (NG-3), cross-section: 60 mm x 60 mm
Monochromator	Mechanical velocity selector with variable speed and pitch
Wavelength Range	5.0 Å to 20.0 Å
Wavelength Resolution	10% to 30% Δλ/λ (FWHM)
Source-to-Sample Distance	4 m to 16 m in 1.5m steps via insertion of guide sections
Collimation	Circular pinhole collimation
Sample Size	0 mm to 25 mm diameter
Sample-to-Detector Distance	1.3 m to 13.1 m continuously variable
Detector	640 mm x 640 mm ³He position-sensitive proportional counter with a 5.08 mm x 5.08 mm resolution

Access Information:

Obtaining Instrument Time

How NG3 SANS Beam Time is Typically Allocated in Each 38 Day Cycle:

29 days - BTAC Proposals
Balance (9 days or less) - Proprietary and Collaborative Research

Operating Schedule:

Current Operating Schedule

Previous Schedules

Live Data View

Publications From NG3 SANS

Contact

Name: Cedric Gagnon - Instrument Responsible
Phone: (301) 975-2020
Email: cedric.gagnon@nist.gov
Address:
100 Bureau Dr Stop 6102
Gaithersburg, MD 20899-6102

Name: Boualem Hammouda - Scheduling
Phone: (301) 975-3961
Email: hammouda@nist.gov

Name: Steve Kline - Instrument Scientist
Phone: (301) 975-6243
Email: steven.kline@nist.gov

Name: NG3 SANS Instrument
Phone: (301) 975-4163