Bulletin of the American Physical Society
2008 APS April Meeting and HEDP/HEDLA Meeting
Volume 53, Number 5
Friday–Tuesday, April 11–15, 2008; St. Louis, Missouri
Session E3: Accelerator Technology and the Physics it Enables |
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Sponsoring Units: DNP DPB Chair: Geoffrey Krafft, Thomas Jefferson National Accelerator Facility Room: Hyatt Regency St. Louis Riverfront (formerly Adam's Mark Hotel), St. Louis E |
Saturday, April 12, 2008 3:30PM - 4:06PM |
E3.00001: Accelerator Physics Related to Rare Isotope Beams Invited Speaker: Extensive analysis of the existing data and theoretical models has suggested that the highest yield for a wide range of rare isotopes available for experiments can be obtained by using two accelerators: a heavy-ion driver and a post-accelerator for re-acceleration of radioisotopes. The superconducting driver linac provides the primary, 400 kW, stable-ion beams in the energy range from 580 MeV for protons to 200 MeV/u for uranium required to produce the radioisotopes. To overcome intensity limitations from the most advanced ECR ion sources, the driver linac is designed for the simultaneous acceleration of two charge-states of uranium ions in the front-end and 5 charge states of uranium ions after the liquid lithium stripper. The most efficient production mechanisms for slow radioactive ions produce these ions in 1$^{+}$ or 2$^{+}$ charge states. The post-accelerator must, therefore, be able to accept such low charge-to-mass ratio ions. However, this option results in an expensive post-accelerator. One approach is to increase the charge state of the ions before acceleration via a charge booster stage. The intensity of rare isotope beams can be enhanced by the acceleration of multiple charge state beams. [Preview Abstract] |
Saturday, April 12, 2008 4:06PM - 4:42PM |
E3.00002: Concepts for High Luminosity Electron-Ion Colliders: Developments and Current Status Invited Speaker: Three concepts for a polarized, high luminosity (10$^{33}$-10$^{35}$ cm$^{-2}$ sec$^{-1})$ electron-ion collider (EIC) of 50 -- 150 GeV center-of-mass energy are currently studied in the US: A conventional ring-ring version and a more ambitious linac-ring version of eRHIC collide electrons from a storage ring or in an energy recovery linac with the hadron beams of RHIC. A more futuristic concept involves colliding figure -- 8 shaped electron and hadron storage rings using electrons from CEBAF involving very high bunch collision rings to achieve maximal luminosity. First ideas for an electron-ion collider at the LHC (LHeC) are presented. [Preview Abstract] |
Saturday, April 12, 2008 4:42PM - 5:18PM |
E3.00003: SCRF and Other Technological/Conceptual Developments with Applications to Nuclear Physics Facilities Invited Speaker: We highlight the recent developments in the science and technology of microwave superconducting radio-frequency cavities, novel concepts in particle colliders and other related technologies. This will be followed by an overview of their potential applications to high energy, high luminosity fixed target accelerators or colliders for various nuclear physics applications of electron-hadron, electron-nucleus and electron-heavy ion collisions. These facilities, designed to explore the dynamics of quarks and gluons deep inside a nucleon, could materialise at several laboratories around the world such as a possible Large electron-Hadron Collider (LHeC) at CERN, a possible electron-ion collider at BNL or Jefferson Lab, the planned 12 GeV upgrade of CEBAF and future rare isotope facilities. [Preview Abstract] |
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