About Instrument and its Applications:
The Bl-200SM Research Goniometer System provides access to all of these studies with an automatic, modular, and versatile system. It is a precision instrument designed for exacting scattering measurements. Based on a special turntable with precision ball bearings and stepping motor, the Bl-200SM’s modern design and quality construction guarantee precise measurements due to the wobble-free movement of the detector. It is field proven in hundreds of laboratories. It is ideal for macro-molecular studies and submicron particle sizing.
By taking advantage of the multiple inputs available on the TurboCorr correlator a new capability of the BI-200SM system is created. By adding an optical signal splitter to the beam of scattered light and a second detector it is possible to eliminate the effects of very high speed interference from the detector(s). This Cross Correlation System provides remarkably clean information as seen in the article we have presented.
The BI-200SM’s modularity simplifies system expansion. Featuring a standard optical rail, the BI-200SM can be used with neutral density filters, a polarizer, an analyzer, and a reference detector. Special sample requirements can often be met by changing the cell holder design or size.
General Information-
Make - Brookhaven Instruments
Model –BI 200SM
Year of Installation - 2014
Specifications-
Beam Focus and Steering Includes mounts, adjustments, and apertures Turntable: 200 mm O.D. turntable, worm gear, and ball bearnings; manual or automatic selection of angles in 0.01° steps; precision machine base with mounting holes; positioning table with micrometer adjustments (power supply and controller for stepping motor is optional)
Specimen Cell Assembly: Including thermal enclosure, centering adjustments, seperate plumbing for temperature control and index matching liquids, round cell holders, square cell holder and alignment cell
Index Matching Vat: With optically flat and specially polished entrance window, precision machined and annealed to minimize stray light
Periscopic Beam Stop: Located inside vat to prevent flare from exit window; provided with coupling for use with optional, zero-angle reference detector
Main Detector Optics:
Entrance aperture 3 mm
Coated, adjustable achromat for focusing scattered light onto 200 micron slit; slit position adjustable
Reflex mirrow and high quality eye piece for viewing scattering region through slit
Filter turret with 637, 532, 633, 514 and 488nm narrow band pass filters and 100, 200, and 400 micron, 1, 2, and 3 mm pinhole for SLS & DLS measurements.

Sample Requirements-
Only Liquid Samples –Approx. 20ml