NSLS Activity Report 2006 - Brookhaven National Laboratory

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Peter Siddons Siddons, a physicist at the NSLS, was cited for his outstanding contributions to developing detectors for use in synchrotron sources. His ideas were recognized as innovative and original, resulting in new and unique detectors that make new experiments feasible. He is a strong advocate and leader in the U.S. for detector development and has made significant advances possible despite the lack of funding in this area. Over the last several years, Siddons has directed the NSLS detector and control group and, in collaboration with BNL’s Instrumentation Division, has developed a suite of detectors. These included fast photon counting detectors for different energy ranges and applications, linear array detectors, and two-dimensional detectors. The detectors have been delivered to users with great success, and have made significant impact on scientific programs at the NSLS and elsewhere. Also, the detector group under Siddons’ direction has gained worldwide recognition for the NSLS and BNL. For example, recently BNL was awarded a multi-year project to construct two imaging detectors for the Linear Coherent Light Source project at Stanford Linear Accelerator Center. Facilities in England, Australia and Taiwan as well as at Argonne National Laboratory are Peter Siddons (second from left) at the BNL Employee Recognition Award Ceremony with the other Science & Technology Award winners. They are Stephen Schwartz of the Environmental Sciences Department (far left), James Alessi of the Collider-Accelerator Department (second from right), and Peter Vanier of the Nonproliferation & National Security Department (far right). Not pictured: Alexei Tsvelik of the Condensed Matter Physics & Materials Science Department. interested in or already actively collaborating with Siddons’ group. He received his Ph.D. in physics at Kings College, London, and joined BNL in 1985. The Science & Technology Award (presented by Peter Bond, Deputy Interim Director for Science & Technology) recognizes distinguished contributions to BNL’s science and technology mission over one or more years. Nominations for the Science & Technology Award are made by organization heads. The three criteria considered for this award are the exceptional nature of the employee’s contributions, their level of difficulty, and their benefit to BNL. 3-6 Nick Gmur Gmur was cited for his outstanding work as the NSLS Environmental Safety & Health (ESH) Coordinator. In this role, he is involved in many activities within the department that carry into almost every part of all programs. He has been a key contributor to challenging ESH issues at the NSLS that include implementing requirements for Brookhaven Award winner Nick Gmur (second from left) at the awards ceremony with the other Brookhaven award winners. Also presented with Brookhaven awards were (from left) John DiNicola (Plant Engineering Division), Raymond Karol (Collider-Accelerator Department), Gerard Shepherd (Safety & Health Services Division), and Peter Stelmaschuk (Plant Engineering). BNL’s Integrated Safety Management program and the internationally recognized ISO 14001 and OH- SAS 18001 programs. Other major achievements included writing, conducting, and coordinating reviews and implementing the accelerator authorization basis documents for the Deep-Ultraviolet-Free Electron Laser, the NSLS and Accelerator Test Facility, and the NSLS Environmental Assessment required by the National Environmental Policy Act. In addition, Gmur resolves many smaller issues daily. He is recognized for his leadership, for bringing great attention to quality and detail, and for always getting the job done on schedule. He is widely respected throughout BNL for his efforts and is an excellent representative of the NSLS. Gmur, who came to BNL in December 1975, has a B.S. in zoology and chemistry from McGill University and an M.S. in biology from the University of Michigan. Presented by Laboratory Director Praveen Chaudhari, the Brookhaven Award recognizes key contributors in support functions whose performance and achievements represent outstanding service to the Laboratory. Nominees for the Brookhaven Award are evaluated by the exceptional nature and difficulty level of the contributions, their benefit to the Laboratory, and the length of time over which the contributions were made. — Laura Mgrdichian
NSLS RESEARCHERS PRODUCE A PRAISEWORTHY POSTER March 1, 2006 At the Materials Research Society semi-annual meeting, an NSLS research group received a special honor. Its meeting poster, one of hundreds, was chosen as one of only six to receive a “best poster” award. Elaine DiMasi (left) and poster presenter Karthikeyan Subburaman. The group, which includes scientists from Stony Brook University, Brookhaven National Laboratory, and the City University of New York, is studying “biomineralization,” the process by which organisms create mineralized tissues, such as bones, teeth, and shells. The collaboration includes NSLS scientist Elaine DiMasi, as well as Karthikeyan Subburaman (SBU), Nadine Pernodet (SBU), Seo- Young Kwak (BNL), Shouren Ge (SBU), Nan-Loh Yang (CUNY), and Miriam Rafailovich (SBU). They presented their poster at the MRS Fall 2005 meeting, held November 27 through December 1 in Boston, Massachusetts. Biominerals are interesting, in part, because they are typically much stronger than ordinary minerals. As such, they may one day be used to create a new class of nanoscale composite materials. First, however, the underlying mechanisms of biomineral formation and structure must be better understood. Elastin protein networks imaged by AFM (a) before mineralization and after (b) 30, (c) 60, or (d) 120 minutes of exposure to mineral. The fi brous parts of the protein become thicker and stiffer as they induce calcium carbonate mineralization. 3-7 The group’s winning poster is a summary of their research on eggshell protein mineralization. They use this as a model to study biomineralization in general, since the formation of an eggshell can be thought of as a process that includes a series of steps. First, the shell’s support membrane is formed and proteins are deposited onto it. Then, the minerals that make up the shell begin to form and grow, using the protein deposits as nucleation points. Finally, the mineral forms a crystal structure on top of the protein-fiber network. The researchers studied this process using real “extracellular matrix proteins” — the type of proteins that make up skin tissue, for example. They used networks of these proteins as the basis of the mineralization process and then studied the mineralized proteins using a powerful imaging device called an atomic force microscope (AFM). As described in their poster, their results show that, at the eggshell’s early growth stages, only the fibrous portions of the proteins accepted calcium carbonate, the mineral. The fibers became thicker as the calcium was incorporated and, ultimately, large mineral crystals appeared. The group hopes to build on these results by learning exactly how the proteins induce the mineralization process. — Laura Mgrdichian GENERAL BARRY MCCAFFREY TOURS THE NSLS March 1, 2006 During a visit to BNL on March 1, Barry McCaffrey, a retired four-star general from the U.S. Army, toured the NSLS. McCaffrey came to BNL with a view to using his specialized experience to help the Laboratory focus on ideas to increase its sponsorship in areas related to homeland security and the understanding and treatment of drug addiction. At the NSLS, he was guided on a tour of the beamline floor by NSLS scientist Peter Siddons, who explained how the facility works and gave an overview of the science done. McCaffrey expressed interest in the range of scientific research that is performed at the NSLS, the type of users (academic, industry, etc.), and how the NSLS facility is organized. McCaffrey’s visit also included tours of the Positron Emission Tomography imaging facility, the Radiation Detector Testing and Evaluation Facility, and labs developing nuclear-detector instrumenta- YEAR IN REVIEW
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NATIONAL SYNCHROTRON LIGHT SOURCE A
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NATIONAL SYNCHROTRON LIGHT SOURCE 2
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NSLS Summer Sunday Draws 650 Visito
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CHAIRMAN'S INTRODUCTION Chi-Chang K
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USERS' EXECUTIVE COMMITTEE REPORT C
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SCIENCE AT THE NSLS Kendra Snyder N
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Spin-Lattice Interaction in the Qua
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SOFT CONDENSED MATTER AND BIOPHYSIC
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grows. The magnesium also is attrac
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Chicago, Liangtao Li and Jerry Kapl
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STRUCTURE OF AN E. COLI MEMBRANE PR
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for 15 minutes at 180 °C, a 1 x 2
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Said collaborator Eliot Rosen, a ra
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AT THE NSLS, SCIENTISTS WORKING TOW
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NANOPARTICLE ASSEMBLY ENTERS THE FA
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Crystal structure of VCBP3 V1V2 sol
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National Laboratory; and Mati Meron
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X-RAY ANALYSIS METHOD CRACKS THE 'L
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the enzyme and the cofactor binds a
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ticles (Figure 1). The nearest-neig
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is about four times larger. The ver
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Figure 1. Ball model of the UO 2 (1
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of barium sulfate species formed up
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observed in the normal-state of the
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and calculate the contribution to t
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energy gap, responsible for suppres
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20%. Correspondingly, the Fe octahe
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We fit the data in Figure 1 by modi
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of the 1812 RF buckets of the ring
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from the laser, we allow enough tim
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scopic and microscopic characteriza
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suboxic boundary and a concomitant
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intensity of the CaP shoulder (Figu
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ently the last one available in the
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functions, particularly at the nano
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A new Proposal Oversight Panel (POP
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SAFETY REPORT Andrew Ackerman ESH&Q
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BUILDING ADMINISTRATION REPORT Bob
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ing were cleaned, repaired, and pai
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FACILITY FACTS & FIGURES The Nation
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Beamline Source Technique Energy Ra
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NSLS BOOSTER PARAMETERS NSLS LINAC
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X-RAY STORAGE RING PARAMETERS AS OF
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PUBLICATIONS
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NSLS USERS Beamline U1A S Buzby, M
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A Nambu, J Graciani, J Rodriguez, Q
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Beamline X1A2 M Feser, B Hornberger
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C Mandel, D Gebauer, H Zhang, L Ton
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Beamline X7A E Anokhina, Y Go, Y Le
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T Moldoveanu, Q Liu, J Tocilj, M Wa
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Beamline X10A A Cisneros, G Mazzant
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S Kamtekar, R Ho, M Cocco, W Li, S
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Z Zhang, P Fenter, S Kelly, J Catal
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E Selvi, Y Ma, R Aksoy, A Ertas, A
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Y Suh, M Carroll, R Levy, G Bisogni
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S Park, E DiMasi, Y Kim, W Han, P W
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G Da, J Lenkart, K Zhao, R Shiekhat
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J Kaste, B Bostick, A Friedland, A
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X Chen, K Tenneti, C Li, Y Bai, R Z
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G Meinke, P Bullock, A Bohm, Crysta
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D Koller, G Ediss, L Mihaly, G Carr
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