Bulletin of the American Physical Society
2006 73rd Annual Meeting of the Southeastern Section of the APS
Thursday–Saturday, November 9–11, 2006; Williamsburg, Virginia
Session CA: Jefferson Lab: The First Ten Years |
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Chair: Marc Sher, College of William & Mary Room: Williamsburg Hospitality House Empire A/B |
Thursday, November 9, 2006 10:45AM - 11:21AM |
CA.00001: Early History of Jefferson Laboratory Invited Speaker: This talk will focus on the history of Jefferson Laboratory from its inception as the NEAL proposal by the Southeastern Universities Research Association (SURA) in 1980, to about 1986 -- two years after the arrival of Hermann Grunder and his Berkeley team. Major themes are (i) a national decision to build a high energy, high duty factor electron accelerator for basic nuclear physics research, (ii) open competition established by the DOE, (iii) formation of SURA, and (iv) interest of SURA physicists (particularly at UVA and W{\&}M) in this research. I will discuss the scientific, technical, and political issues that eventually lead to the choice of Newport News as the site and the choice of a recirculating superconducting ring as the final design. [Preview Abstract] |
Thursday, November 9, 2006 11:21AM - 11:57AM |
CA.00002: Highlights from the first 10 years of Physics Experiments at JLab Invited Speaker: The first Nuclear Physics experiments using the CEBAF accelerator at Jefferson Lab started in 1995. In this presentation, an overview will be given of the science highlights of Jefferson Lab experiments. It will be shown that the past 10 years have produced a rich array of science results, that have drastically changed our view of the role of quarks in protons and in atomic nuclei. [Preview Abstract] |
Thursday, November 9, 2006 11:57AM - 12:33PM |
CA.00003: Addressing Physics Grand Challenges Using the Jefferson Lab FEL Invited Speaker: The Jefferson Lab Free Electron Laser[1] is the first of the so-called 4$^{th}$ generation light sources to go operational. Capable of delivering extraordinarily bright, tunable light in ultrafast pulses from THz[2] through infrared to UV, the facility extends the experimental reach of accelerator-based light-sources by many orders of magnitude. This allows new opportunities to study many of the ``Grand Challenges'' recently defined by the Office of Science, Basic Energy Sciences Division, most of which are concerned with understandings of equilibrium and non-equilibrium behavior of materials in physics, chemistry and biology using precise pump and probe techniques. Specifically, in condensed matter physics, the JLab FEL permits new studies which go beyond earlier studies of reductionist behavior to those which examine emergent behavior. Thus, the understanding of high Tc superconductivity, colossal magneto-resistance, and observations of the breakdown of the Born-Oppenheimer approximation, are examples of collective behavior which is now treated theoretically via the concept of quasiparticles. In this presentation we will describe the dual pathways of light source development and physics challenges, and then show how they are combined in experiments that allow new insights to be developed to understand material function. We will illustrate this with details of the evolution of accelerator-based light sources, and with examples of work performed to date. \newline \newline References: \newline [1] Neil et al. Phys. Rev.Letts \textbf{84}, 662 (2000). \newline [2] Carr, Martin, McKinney, Neil, Jordan {\&} Williams, Nature \textbf{420}, 153 (2002). [Preview Abstract] |
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