BNL Home
September 2016
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  1. NSLS-II Engineering Seminar Series

    2 pm, John Dunn Seminar Room, Bldg. 463

    Hosted by: 'Sushil Sharma and Mary Carlucci-Dayton'

    During the last decade, we have seen ultra-fast progress in X-ray optics performances. This enhancement is directly linked to the development of the necessary tools to control these optical components. In parallel to the design and construction of new synchrotron radiation sources quite important efforts are required to upgrade existing and develop new x-ray optics that is capable of conditioning powerful x-ray beams with minimum losses of brilliance. In the context of these research and development activities a well-equipped laboratory is absolutely vital. It is now necessary to characterize optical surface figures, slope errors and roughness on meter-long optics over spatial frequencies as short as 0.1 mm and with slope errors reaching less than 100 nrad rms or surface figure errors close to 1 nm to preserve the high brightness made available by third and fourth generation synchrotron/FEL sources like NSLSII or LCLS. The NSLS-II Optical Metrology Laboratory (NSLSII-OML) includes commercial instruments for measuring long spatial frequency figure errors, mid spatial frequencies and high frequency roughness and had developed new instruments to measure slope errors: This talk provides a brief description of the different instruments currently available in the laboratory and gives an overview of the active R&D efforts within the NSLSII-OML.

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  1. NSLS-II Engineering Seminar Series

    "The NSLS-II Optical Metrology Laboratory"

    Mourad Idir, Optics and Metrology Group Leader, NSLS-II

    Tuesday, September 13, 2016, 2 pm
    John Dunn Seminar Room, Bldg. 463

    Hosted by: 'Sushil Sharma and Mary Carlucci-Dayton'

    During the last decade, we have seen ultra-fast progress in X-ray optics performances. This enhancement is directly linked to the development of the necessary tools to control these optical components. In parallel to the design and construction of new synchrotron radiation sources quite important efforts are required to upgrade existing and develop new x-ray optics that is capable of conditioning powerful x-ray beams with minimum losses of brilliance. In the context of these research and development activities a well-equipped laboratory is absolutely vital. It is now necessary to characterize optical surface figures, slope errors and roughness on meter-long optics over spatial frequencies as short as 0.1 mm and with slope errors reaching less than 100 nrad rms or surface figure errors close to 1 nm to preserve the high brightness made available by third and fourth generation synchrotron/FEL sources like NSLSII or LCLS. The NSLS-II Optical Metrology Laboratory (NSLSII-OML) includes commercial instruments for measuring long spatial frequency figure errors, mid spatial frequencies and high frequency roughness and had developed new instruments to measure slope errors: This talk provides a brief description of the different instruments currently available in the laboratory and gives an overview of the active R&D efforts within the NSLSII-OML.

  2. Summer Sunday

    "Brilliant Light, Dazzling Discoveries: National Synchrotron Light Source II"

    Sunday, July 24, 2016, 10 am
    Berkner Hall for Information

    Visit the National Synchrotron Light Source II, where scientists use intense beams of light to see the inner structure of batteries, proteins, space dust, and more.

  3. NSLS-II Friday Lunchtime Seminar Series

    "Effect of Hydrophobic and Hydrophilic Silica Nano Particles on the Dynamics of Phospholipid Films, an XPCS Investigation"

    Presented by Luigi Cristofolini, University of Parma, Italy

    Friday, July 15, 2016, 12 pm
    NSLS-II Bldg 744 (LOB 4), room 156

    Hosted by: 'L. Carr, S. Chodankar and B. Ocko'

  4. NSLS-II Engineering Seminar Series

    "Mechanical Stability Issues at BNL"

    Charles Spataro, NSLS-II, Accelerator Division, Instrumentation Group

    Tuesday, July 12, 2016, 2 pm
    John Dunn Seminar Room, Bldg. 463

    Hosted by: 'Sushil Sharma and Mary Carlucci-Dayton'

    High performance goals of several facilities at BNL (NSLS-II, RHIC, CFN and future eRHIC) require high mechanical stability of their equipment such as magnets, BPMs, mirrors, monochromators, detectors, and microscopes. The mechanical stability of these components can be compromised by site-wide ground vibrations, local vibration sources (pumps, motors, etc.), and fluctuations in air and water temperatures. This presentation highlights the results of several studies that have been conducted at several BNL sites and facilities over the past five years to characterize the mechanical stability issues and to develop mitigation schemes.

  5. NSLS-II Friday Lunchtime Seminar Series

    Presented by Mark Sutton and David Sprouster, McGill University and BNL

    Friday, July 8, 2016, 12 pm
    NSLS-II Bldg 744 (LOB 4), room 156

    Hosted by: 'L. Carr, S. Chodankar and B. Ocko'

  6. Brookhaven Lecture

    "515th Brookhaven Lecture: 'Structural Biology: Studying Living Things as They Jiggle and Wiggle'"

    Presented by Sean McSweeney, National Synchrotron Light Source II at Brookhaven Lab

    Wednesday, June 29, 2016, 4 pm
    Berkner Hall Auditorium

    Hosted by: ''Thomas Watson''

  7. NSLS-II Friday Lunchtime Seminar Series

    "Two Informal Talks of Interest to the Synchrotron Radiation Community"

    Presented by Joe Dvorak | BNL, Suzannah Wood | University of Oregon

    Friday, June 10, 2016, 12 pm
    NSLS-II 744 (LOB4) rm 156

    Hosted by: ''L. Carr, S. Chodankar and B. Ocko''

  8. NSLSII Friday Lunchtime Seminar Series

    Friday, April 15, 2016, 12 pm
    NSLS-II Bldg 744 (LOB 4), room 156

    Hosted by: 'L. Carr, S. Chodankar and B. Ocko'

    Presented by Dr. Jie Deng Yale University "Absorption Spectra and their Applications in High Pressure Mineral Physics" and Dr. Larry Carr NSLS-II - Brookhaven National Laboratory "Near-Field Infrared Study of Plasmonic and Effective Medium Behavior in Nanoscopic Granular Gold Films"

  9. NSLS-II Friday Lunchtime Seminar Series

    "Spectrum-Based Alignment of an In-Vacuum Undulator"

    Presented by Oleg Chubar, NSLS-II / BNL

    Friday, April 8, 2016, 12 pm
    NSLS-II 744 (LOB4) rm 156

    Hosted by: 'L. Carr, S. Chodankar and B. Ocko'

  10. NSLS-II Friday Lunchtime Seminar Series

    "Canceled"

    Friday, March 18, 2016, 12 pm
    744 (LOB4) rm 156

  11. NSLS-II Town Meeting

    "NSLS-II Town Meeting"

    Friday, March 11, 2016, 1 pm
    Bldg. 703 - Large Conference Room

    Hosted by: NSLS-II Users' Executive Committee

  12. NSLS-II Friday Lunchtime Seminar Series

    "'PI3 Kinase: Molecular Determinants of PIP2 Recognition' and 'X-ray Total Scattering Study of the Local Structure of Disordered, Zr Based Exchange Materials'"

    Presented by Dr. Sandra Gabelli and Dr. Maxwell Terban

    Friday, March 4, 2016, 12 pm
    NSLS-II 744 (LOB4) rm 156

  13. NSLS-II Friday Lunchtime Seminar Series

    "Novel Pressure-Induced Confined Metal from the Mott Insulator Sr3Ir2O7' and 'Reverse Monte Carlo / evolutionary algorithm approach for EXAFS data" Presented by Yang Ding and Janis Timosenko"

    Friday, February 19, 2016, 12 pm
    NSLS-II 744 (LOB4) rm 156

  14. NSLS-II Friday Lunchtime Seminar Series

    "'Control of Beam Vertical Size to Diffraction Limit' and 'Effect of Dynamical Diffraction in Bragg Diffractive Imaging'"

    Presented by Yonjun Li and Wen Hu

    Friday, February 12, 2016, 12 pm
    NSLS-II 744 (LOB4) rm 156

  15. NSLS-II Friday Lunchtime Seminar Series

    "Canceled due to snow"

    Friday, February 5, 2016, 12 pm
    NSLS-II 744 (LOB4) rm 156

  16. NSLS-II Friday Lunchtime Seminar Series

    Friday, January 29, 2016, 12 pm
    NSLS-II 744 (LOB4) rm 156

  17. NSLS-II Friday Lunchtime Seminar Series

    Presented by Bruce Ravel and Li Li

    Friday, January 22, 2016, 12 pm
    NSLS-II 744 (LOB4) rm 156

    Hosted by: Larry Carr, Ben Ocko and Shirish Chodankar

    Two informal seminars of interest to the synchrotron radiation community

  18. NSLS-II Friday Lunchtime Seminar Series

    Presented by Ray Fliller (NSLS-II) and Mengkun Liu (Stony Brook

    Friday, December 11, 2015, 12 pm
    NSLS-II 744 (LOB4) rm 156

  19. NSLS-II Town Meeting

    "NSLS-II Town Meeting"

    Friday, December 4, 2015, 1 pm
    Large Conference Room, Bldg. 703

  20. NSLS-II Friday Lunchtime Seminar Series

    "Two informal talks of interest to the synchrotron science community"

    Friday, November 20, 2015, 12 pm
    NSLS-II 744 (LOB4) rm 156

  21. Brookhaven Lecture

    "Synchrotron Science…and Bugs?"

    Presented by Wah-Keat Lee, NSLS-II

    Wednesday, November 18, 2015, 4 pm
    Berkner Hall Auditorium

    Hosted by: Tom Watson

    Mosquitos infect millions of people with diseases including life-threatening malaria and dengue every year. Other insects are blamed for billions of dollars of damage to crops across the United States. And while most people squirm, swat, and scratch at the sight of insects, othersâ€"albeit far fewer than mostâ€"look to research facilities like ultra-bright x-ray-producing synchrotron light sources for unprecedented views of these six-legged creatures

  22. NSLS-II Friday Lunchtime Seminar Series

    Friday, November 13, 2015, 12 pm
    NSLS-II 744 (LOB4) rm 156

    Informal seminars of interest to the synchrotron radiation community

  23. NSLS-II Friday Lunchtime Seminar

    "Addressing the Data Challenge in Small Angle Scattering"

    Presented by Alexander Hexemer, Advanced Light Source, Lawrence Berkeley National Lab

    Friday, November 6, 2015, 12 pm
    NSLS-II Bldg 744 (LOB 4) conf. room 156

  24. NSLS-II Friday Lunchtime Seminar Series

    Friday, October 30, 2015, 12 pm
    NSLS-II 744 (LOB4) rm 156

    Hosted by: Larry Carr, Ben Ocko and Shirish Chodankar

    Two seminars of relevance to the synchrotron radiation community Bring your lunch!

  25. Photon Sciences Seminar

    "In-situ XAS, TXM and RIXS experiments"

    Presented by Frank de Groot, Debye Institute of Nanomaterials Science, Utrecht University, Netherlands

    Thursday, October 1, 2015, 11 am
    CFN Seminar Room, 2nd Fl., Bldg 735

    New developments in in-situ x-ray absorption (XAS), transmission x-ray microscopy (TXM) and resonant inelastic x-ray scattering (RIXS) will be discussed. A brief introduction is given of x-ray absorption spectroscopy, including the multiplet interpretation of XAS spectral shapes [1,2]. Nanoscale chemical imaging of catalysts under working conditions is possible with transmission x-ray microscopy. We have shown that TXM can image a catalytic system under relevant reaction conditions and provides detailed information on the morphology and composition of the catalyst material in situ [3]. The 20 nanometer resolution combined with powerful chemical speciation by XAS and the ability to image materials under reaction conditions opens up new opportunities to study many chemical processes. I will discuss the present status of in-situ TXM, with an emphasis on the abilities of the 10+ nm resolution TXM technique in comparison with 0.1 nm STEM-EELS [4,5]. Hard X-ray TXM allows the measurement of chemical images and tomographs under more realistic conditions, using a capillary reactor at 10 bar Fischer-Tropsch conditions [6]. The second part of the talk deals with resonant inelastic x-ray scattering (RIXS), In 2p3d RIXS one scans through the 2p XAS edge and measures the optical excitation range. As an example, the RIXS spectra of CoO will be discussed. The experimental resolution of 100 meV at ADRESS allows the detailed observation of the electronic structure. First-principle theoretical modelling was performed for the ground state and multiplet analysis for the RIXS experiments. The implications for measurements on coordination compounds (cobalt carboxylates) and cobalt nanoparticles is discussed, in particular the comparison with optical spectroscopy [7]. Related to the RIXS measurements is the analysis of Fluorescence yield (FY) detected x-ray absorption spectra (XAS), including the intrinsic deviations of the FY-XAS spectral shape from

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  1. NOV

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    Wednesday

    X-ray Absorption Fine Structure Spectroscopy (XAFS) Short Course: Principles and Applications

    November 2-4, 2016

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    14th International Conference on Surface X-ray and Neutron Scattering (SXNS14)

    July 10-14, 2016

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    2016 NSLS-ll and CFN Users' Meeting

    May 23-25, 2016

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    Advanced Topics in XAFS Data Analysis and Modeling

    November 5-7, 2015

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    8th International Workshop on Infrared Microscopy and Spectroscopy using Accelerator Based Sources

    October 11-15, 2015

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    Collaboration Meeting on Simulation and Modeling for SR Sources and X-Ray Optics

    October 1-2, 2015

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    NSLS-II Strategic Planning Workshop

    September 24-25, 2015

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    23rd International Congress on X-ray Optics and Microanalysis (ICXOM23)

    September 14-18, 2015

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    12th International Conference on Synchrotron Radiation Instrumentation (SRI 2015)

    July 6-10, 2015

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    2015 NSLS-II & CFN Joint Users' Meeting

    May 18-20, 2015

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    First Science at the ABBIX Beamlines

    April 21-22, 2015

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    Short Course: Methods and Applications of X-Ray Absorption Fine Structure Spectroscopy

    November 13-15, 2014

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    NSLS "Last Light"

    September 30, 2014

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    Joint NSLS/NSLS-II & CFN Users' Meeting

    May 19-21, 2014

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    NSLS-II Early Experiment Workshop: IXS Focused Session

    October 1, 2013

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    NSLS-II First-Experiments Workshop

    August 12-13, 2013

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    NSLS and CFN Users' Meeting

    May 20-22, 2013

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    Seventh International Workshop on Radiation Safety at Synchrotron Radiation Sources

    May 8-10, 2013

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    RapiData 2013

    April 21-26, 2013

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    X6A Workbench: Hands-on Synchrotron Structural Biology

    January 28 - February 1, 2013

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    XANES Short Course: Theory, Analysis, Applications

    November 8-10, 2012

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    Synchrotron Radiation in Art and Archaeology (SR2A)

    June 5-8, 2012

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    2012 NSLS/CFN Joint Users' Meeting

    May 21-23, 2012

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    Operando IV

    4th International Congress on Operando Spectroscopy

    April 29 - May 3, 2012

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    X6A Workbench: Hands-on Synchrotron Structural Biology

    March 27-30, 2012

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    Photon Sciences Users' Executive Committee and Town Meetings

    August 12, 2011

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    Materials Diffraction Suite Workshop

    July 18-20, 2011

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    2011 NSLS/CFN Users' Meeting

    May 23-25, 2011

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    Workshop on Supercritical Carbon Dioxide-Materials Interactions

    March 21-23, 2011

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    Advanced Topics in XAFS Data Modeling

    November 4-6, 2010

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    EPICS Collaboration Meeting - Fall 2010

    October 7-14, 2010

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    2010 Joint NSLS and CFN Users Meeting

    May 24-26, 2010

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    In Situ and Operando XAFS Experiments and Data Analysis

    October 22-24, 2009

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    MX Frontiers at the One Micron Scale

    July 23-24, 2009

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    The Experimental Program to Stimulate Competitive Research (EPSCoR) Review 2009

    July 20-23, 2009

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    INCREASE Workshop

    Interdisciplinary Consortium for Research and Educational Access in Science and Engineering

    July 15-17, 2009

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    International Workshop for New Opportunities in Hard X-ray Photoelectron Spectroscopy: HAXPES 2009

    May 20-22, 2009

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    2009 NSLS / CFN Users' Meeting

    May 18-20, 2009

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    Applications of Synchrotron Techniques in Glass Research

    April 6-7, 2009