Beamline 6-ID-B,C

Beamline 6-ID-B,C is operated by the Magnetic Materials Group in the X-ray Science Division (XSD) of the Advanced Photon Source.

Research on this beamline centers on general x-ray scattering studies of materials. The beamline has 2 end-stations:

  • 6-ID-B: Psi -Diffractomter & In-Field Studies
  • 6-ID-C: UHV in-situ growth

Recent Research Highlights

Concentration, temperature, and pH dependence of SY aggregates

October 7, 2009

Researchers from Kent State University have used beamline 6-ID-B to measure the positional-order and correlation lengths of collumar agagates of the dye sunset yellow (SY) as functions of temperature, concentration, and ionic content. The average length of aggregates i.e., the number of SY molecules pressent in each column, was found to grow monotonically with concentration while their effective transverse separation decreased. Temperature and concentration dependence of suggests that chromonic aggregation is not an isodesmic process.

Contact: Satyen Kumar - Kent State University

Local Contacts:

Philip Ryan (Surface Diffraction) 630.252.0252
Jong-woo Kim (Magnetic Scattering) 630.252.0248
Zahirul Islam (In-Field Scattering, Magnetic Scattering) 630.252.9252

Posted by: Becki Gagnon (
Content by: Jonathan Lang (