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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 May 31, 2017.  |   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. MAY



    NSLS-II Friday Lunchtime Seminar Series

    "SAC Rerun: User Program Update"

    Presented by Lisa Miller, NSLS-II, BNL

    12 pm, NSLS-II Bldg 743 (LOB 3), room 156

    Friday, May 5, 2017, 12:00 pm

    Hosted by: 'Ben Ocko and Shirish Chodankar'

See all

Conferences & Workshops

  1. MAY



    2017 NSLS-ll and CFN Users' Meeting

    May 15-17, 2017

User Administration 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.