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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, 2018.  |   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. DEC



    NSLS-II Seminar

    "The Canadian Light Source – A Bright Light on the Prairies"

    Presented by Rob Lamb (CEO) and Dean Chapman (Science Director), Canadian Light Source, Canada

    11 am, NSLS-II, Bldg. 745

    Wednesday, December 13, 2017, 11:00 am

    Hosted by: ''Qun Shen''

    The Canadian Light Source (CLS) began operations in 2005 with 7 beamlines. Now a dozen year later, the last of 22 beamlines are in the final stages of construction. The ring is now almost completely filled with only one straight remaining. As the second decade of the CLS begins and the CLS matures, a new strategic plan focuses on using our most precious resource – the staff – to be more engaged in helping solve problems of societal importance. Some aspects of this plan and unique highlights from the facility such as agricultural and medical imaging research will be discussed.

  2. JAN



    NSLS-II Colloquium Series

    "Development of insertion devices at SOLEIL"

    Presented by Marie Emmanuelle Couprie, SOLEIL, France

    4 pm, Large Seminar Room, Bldg. 510

    Thursday, January 11, 2018, 4:00 pm

    Hosted by: ''''''John Hill''''''

    Insertion devices (undulators and wigglers) are essential components for accelerator based light sources, such as synchrotron radiation facilities implemented on storage rings and free electron lasers. The wide panoply of insertion devices developed at Synchrotron SOLEIL (electromagnetic, combined permanent magnet and electromagnetic for rapid switching of the polarization, permanent magnet APPLE-II, hybrid in-vacuum and cryogenic undulators, out and in-vacuum wigglers) enables to cover a very wide spectral range (from the UV to the hard X-rays), and to provide flexibility for the users of the SOLEIL third generation light source. Starting from the description of the developments carried out at SOLEIL on the different types of systems, some future perspectives will be given, considering the evolution of the specifications of the different light source types. The use of the undulator radiation for photon beam based alignment and adjustment (such as taper) will be discussed. Furthermore, undulator radiation can serve as an electron beam diagnostic and provide a further insight on the electron beam quality itself, as illustrated in the case of the COXINEL project, using laser plasma acceleration.

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Conferences & Workshops

There are no conferences scheduled at this time.

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.