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BL16B1 Small Angle X-ray Scattering (SAXS) Beamline

1.     Introduction

The beamline (BL16B1) is primarily a combined small-angle and wide-angle scattering instrument. Small angle and wide angle X-ray scattering (SAXS and WAXS), when coupled with synchrotron radiation, offers research opportunities in studying the microstructure, kinetics, dynamics and rheology of complex and nanostructured materials (polymers, colloids, fluids, liquid crystals, etc) over a wide range of length (e.g., from Angstroms to microns) and time (e.g., from microseconds to hours) scales. For example, the changes in nano-, micro- and supra-molecular structures of biological and synthetic macromolecules, including ionomers, block copolymers, and dendrimers, in solution and in melts, as well as gels and colloidal systems; the kinetics of phase transition in semi-crystalline polymers, blends and nanocomposites.


2.     Beamline Layout


3.     Techniques

SAXS- Small angle X-ray scattering

WAXS- Wide angle X-ray scattering

GISAXS- Grazing Incidence Small Angle X-ray Scattering

ASAXS-Anomalous Small Angle X-ray Scattering

4.     Optics

Double Crystal Monochromator ( Si(111) )

Toroidal Mirror

5.     Endstations

Mar165 CCD detector

Ionization chamber

CPS120 Curved Position Sensitive X-ray Detector

Sample stage

6.     Support LAB

In-situ SAXS study with Linkam heating stage(THMS 600,-60˚C~600˚C)



7.     Beamline Specifications


Bending Magnet

Energy Range

5-20 keV

Energy Resolution(ΔE/E)

6.0´10-4@ 10keV

Photon Flux at sample

4´1011 phs/s@10keV@300 mA

Beam size at sample

0.4´ 0.5 mm2 @ 10keV (H´V)

Minimum scattering angle

< 0.60 mrad

8.     Applications

Fiber and polymer

Soft condensed matter


Noncrystalline structural biology

Interdisciplinary studies of soft matter, biology, and nanoscience

9.     Contacts

Tian Feng