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Transition Topics

On September 30, 2014, NSLS permanently ceased operation.

Transition Beam Time Arrangements at Other DOE Facilities

In order to provide former NSLS users with access to beam time during the build-up of the NSLS-II facility, NSLS-II is currently coordinating with other DOE synchrotron facilities to make near-term arrangements, with committed resources and staffing, to support former NSLS users at the appropriate beamlines at these other facilities. The current arrangements include the following.

Infrared Spectromicroscopy Program at ALS Beamlines 1.4 and 5.4

NSLS-II has established a 3-year Approved Program at the ALS beamlines 1.4 and 5.4 for 15% of the available beam time on each beamline through December 2016. In addition, ALS is building a third infrared beamline 2.4 in order to develop full-field FTIR imaging and tomography capabilities. Prospective users should use the NSLS-II PASS system to apply for access to this allocated time, with user support provided by NSLS-II staff during the experiments. The infrared spectromicroscopy programs at ALS Beamlines 1.4 and 5.4 feature Thermo Nicolet infrared spectrometers and microscopes for single-pixel spectromicroscopy and mapping. The endstations are essentially identical to the equipment at NSLS beamline U2B spanning a spectral range from 650 – 4000 cm-1 with a diffraction-limited spatial resolution of 3 – 10 μm in the mid-infrared spectral region. Scientific applications span from biological samples, environmental samples, novel compounds, forensic studies, laminates, polymers, fibers, particulate contamination, and materials science applications. For more information on how to apply for transition beam time at the ALS, see the Infrared Programs website.

Contact: Lisa Miller ( , 631.344.2091)

Hard X-ray Spectroscopy Program at SSRL BL 2-2

NSLS-II has established a collaborative access program (CAP) in X-ray Spectroscopy for 80% of available beam time at the SSRL beamline 2-2 through December 2016. This CAP is a collaboration between NSLS-II, the Synchrotron Catalysis Consortium (SCC), and the Case Center for Synchrotron Biosciences, with NSLS-II and partner scientific staff providing user support at the beamline. NSLS-II and its partners have also provided operating equipment at BL 2-2, including sample cells, detectors, and gas handling apparatus for catalysis research.

The final call for proposals for this program was January 31, 2016. Any users interested in access to SSRL beamline 2-2 should apply directly to SSRL for beam time. Information on this process can be found here.

Contact: Lisa Miller ( , 631.344.2091)

Macromolecular Crystallography Program at SSRL BL 14-1

NSLS-II has established a collaborative access program (CAP) in Macromolecular Crystallography for 50% of available beam time at the SSRL BL 14-1 through December 2016 with NSLS-II scientific staff providing user support at the beamline. Prospective users will apply for beam time through the SSRL proposal system for accessing the beamlines. For more information on how to apply for MX transition beam time at SSRL on Beamline 14-1, see the Macromolecular Crystallography Transition webpage.

Contact: Sean McSweeney ( , 631-344-4506)

Transmission X-ray Microscopy Program at APS Beamline 8-BM

The transmission x-ray microscopy (TXM) program formerly located at NSLS Beamline X8C has been moved temporarily to APS beamline 8-BM with NSLS-II staff providing user support for 50% of the operational time. The TXM instrument at 8-BM provides absorption and phase contrast modes with a 30 µm field of view, 30 nm spatial resolution, and an energy range of 5 – 11 keV. XANES capability for chemical mapping as well as nanotomography is available. Beam time submission and allocation is handled through the APS proposal system with input from NSLS-II. Contact: Jun Wang ( , 631.344.2661)

Energy Dispersive X-ray Diffraction Program at APS Beamline 6-BM

NSLS-II has formed a collaborating access team (CAT), with COMPRES and APS as partners, to operate the 6-BM beamline at APS as a mini-CAT. The beamline consists of two white beam hutches, 6-BM-A and 6-BM-B, with the 6-BM-A accommodating the materials engineering and battery research program and the 6-BM-B accommodating the COMPRES program. The mini-CAT is co-Directed by NSLS-II and COMPRES, with scientific staff providing user support. Beam time submission and allocation is handled through the APS proposal system with input from NSLS-II and COMPRES co-Directors. For more information on how to apply for transition beam time at APS on Beamline 6-BM, see the Energy Dispersive XRD Transition webpage.

Specific Programs include:

1. Materials Engineering Program (APS Beamline 6-BM-A): The program at 6-BM-A uses high-energy polychromatic x-rays above 50 keV from a bending magnet source for energy-dispersive x-ray diffraction (EDXRD). Two solid-state germanium detectors capture diffracted x-rays in a transmission geometry (at angles of 5-10 degrees) allowing simultaneous capture of scattering vectors in the horizontal and vertical directions. Variable incident and diffracted slits of typical size 0.1mm are used to form gage volumes of approximately 0.1x0.1x1.4 mm3.

This probe allows significant penetration (several mm) into engineering materials to quantify phase evolution, orientation distribution, and stress field in them. Large sample coverage will be provided by XYZ translations (several cm each) and 3-axis tilt/rotations, including full 360 degree vertical rotation. Additional hardware includes an rbin BT-5HC 2-channel battery cycler with hardware/software interface for visualizing simultaneous battery charge discharge curves and EDXRD. Arbin MITS Pro battery testing software provides comprehensive tools for testing batteries, super-capacitors, electro-chemical cells and others. This instrumentation is optimized for industrial and academic groups involved in engineering and energy storage research.

Contact: Ron Pindak ( , 631-344-7529)

2. High Pressure Program (APS Beamline 6-BM-B): The high-pressure program at the 6-BM beamline at APS will feature a DDIA apparatus capable of generating pressure of 15 GPa and temperatures of 2000K as the sample is loaded in a uniaxial stress field of up to 5 GPa. A detector array enables the diffraction vector to sample grains over a range of angles relative to the applied stress field, yielding a precise measure of the stress (10 MPa resolution). Imaging the sample allows measurement of changes in dimensions (strain resolution of 10-4). The stress field can be varied with time or applied uniformly over long periods of time. This system allows measurements of the quantitative rheological properties of materials under a variety of P-T conditions. This has attracted a large Earth science community interested in the deformation properties of the Earth. Time varying stress and temperature fields allow measurement of dynamic properties such as anelasticity, elastic dispersion, kinetics of phase transitions, and thermal diffusivity at conditions of elevated P and T.

Contact: Don Weidner ( , 631-632-8211)

Techniques Across DOE

To assist in how and where your scientific research projects can be completed, we’ve prepared matrices giving the number of beamlines providing various scientific techniques that will be available at NSLS-II and are available at other U.S. DOE light sources.

As part of the User Transition Forum in May 2012, an effort was undertaken to understand the beamlines that are available across the DOE synchrotron complex, and how that number (and technique mix) might change through the NSLS to NSLS-II transition. The basic framework was proposed by Tony Lanzirotti, University of Chicago, who developed the first matrix for X-ray microprobe capabilities at NSLS, APS, ALS, SSRL, and those anticipated for NSLS-II. The idea caught on, and we worked to gather information for other techniques and instruments.

To provide some common structure or classification for the beamlines, we adopted the nomenclature used by DOE to describe experimental techniques at light-source beamlines (PDF). A number of volunteers (PDF) across the facilities worked to collect, classify, and project the likely techniques at the facilities through 2016. We worked to make sure beamlines are only listed and counted once, although many have capabilities across techniques, and some (microprobes in particular) might be thought of as spectroscopy instruments that happen to look at small samples. See a comparison of the existing beamlines (PDF) at NSLS and those planned for NSLS-II organized to this scheme is given.

With all these caveats, it should be clear there is some lack of precision in the overall exercise, but it should be helpful within particular techniques to see where gaps exist, and where capability is expected to be available at any particular time. Have a look at the individual technique tables for details. Overall, one can see from the DOE Beamline Distribution (PDF) that some areas of spectroscopy and scattering will be especially compromised during the transition.  Users are encouraged to interact with the staff at the facilities to try and understand what opportunities will be available to pursue their particular research.

The links at right lead directly to PDFs of the specific matrices.