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National Synchrotron Light Source II

NSLS-II is a state-of-the-art 3 GeV electron storage ring. The facility offers scientific and industrial researchers an array of beamlines with x-ray, ultraviolet, and infrared light to enable discoveries in clean and affordable energy, high-temperature superconductivity, molecular electronics, and more. Overview »


The next deadline for NSLS-II beam time proposals and beam time requests is January 31, 2019.  |   Submission Details

Become a Facility User

Beamlines at the National Synchrotron Light Source II are open to academic and industrial users for scientific research. All research proposals are subjected to peer review and ranked against competing proposals based on scientific merit.

Beamline Projects

When fully built out, National Synchrotron Light Source II will accommodate approximately 60 to 70 beamlines. Thirty beamlines are currently in various stages of development and will provide significant research capacity in early operations.

Full Calendar


  1. JAN



    NSLS-II Friday Lunchtime Seminar Series

    "Computer Vision and new areaDetector features"

    Presented by Kazimierz Gofron, NSLS-II

    12 pm, NSLS-II Bldg. 743 Rm 156

    Friday, January 18, 2019, 12:00 pm

    Hosted by: Ignace Jarrige

  2. JAN



    NSLS-II Friday Luncheon Seminar

    "EDRIXS: An open source toolkit for simulating spectra of resonant inelastic x-ray scattering"

    Presented by Yilin Wang, Condensed Matter Physics & Material

    12 pm, NSLS-II, Bldg. 743 Rm 156

    Friday, January 25, 2019, 12:00 pm

    Hosted by: Ignace Jarrige

    In this talk, we present an open source toolkit (dubbed EDRIXS) to facilitate the simulations of RIXS spectra of strongly correlated materials based on exact diagonalization (ED) of certain model Hamiltonians. The model Hamiltonian can be from a single atom, small cluster or Anderson impurity model, with model parameters from density functional theory plus Wannier90 or dynamical mean-field theory calculations. The spectra of x-ray absorption spectroscopy (XAS) and RIXS are then calculated using Krylov subspace techniques. This toolkit contains highly efficient ED, XAS and RIXS solvers written in modern Fortran 90 language and a convenient Python library used to prepare inputs and set up calculations. We first give a short introduction to RIXS spectroscopy, and then we discuss the implementation details of this toolkit. Finally, we show several examples to demonstrate its usage.

  3. FEB



    NSLS-II Collquium

    "Resonant x-ray scattering from soft materials as a probe of molecular orientation fluctuations at the nanoscale"

    Presented by Noel A. Clark, University of Colorado, Boulder

    4 pm, Large Seminar Room, Bldg. 510

    Thursday, February 14, 2019, 4:00 pm

    Hosted by: John Hill

See all

Conferences & Workshops

  1. JUN



    4th International Conference on Resonant Elastic X-ray Scattering (REXS 2019)

    June 17-21, 2019

  2. JUN



    11th International Conference on Inelastic X-ray Scattering (IXS2019)

    June 23-28, 2019

User Services Office

Brookhaven National Laboratory
743 Brookhaven Avenue
Building 743
Upton, NY 11973-5000

(631) 344-8737 | | website

Visiting NSLS-II

If you are a contractor or vendor coming to NSLS-II for the day, please work with your host to gain access to the Lab site. If you will be on site for more than one day, please contact the Guest, User, and Visitor Center for access and training requirements. See maps and directions for getting here.