Publications (6)0 Total impact
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Article: Conceptual Design of A Polarized Medium Energy Electron-Ion Collider at JLab
Polarization. 01/2011; 70:80. -
Article: Advances on ELIC design studies
Proceed, of ll'European Particle Accelerator Conference, WEPP049. 01/2008; -
Conference Proceeding: Design studies of high-luminoisty ring-ring electron-ion collider at CEBAF
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ABSTRACT: Experimental studies of fundamental structure of nucleons require an electron-ion collider of a center-of- mass energy up to 90 GeV at luminosity up to 10<sup>35</sup> cm<sup>-2</sup> s<sup>-1</sup> with both beams polarized. A CEBAF-based collider of 9 GeV electrons/positrons and 225 GeV ions is envisioned to meet this science need and as a next step for CEBAF after the planned 12 GeV energy upgrade of the fixed target program. A ring-ring scheme of this collider developed recently takes advantage of the existing polarized electron CW beam from the CEBAF and a green-field design of an ion complex with electron cooling. We present a conceptual design and report design studies of this high-luminosity collider.Particle Accelerator Conference, 2007. PAC. IEEE; 07/2007 -
Conference Proceeding: Status of the R&D towards electron cooling of RHIC
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ABSTRACT: The physics interest in a luminosity upgrade of RHIC requires the development of a cooling-frontier facility. Detailed calculations were made of electron cooling of the stored RHIC beams. This has been followed by beam dynamics simulations to establish the feasibility of creating the necessary electron beam. The electron beam accelerator will be a superconducting Energy Recovery Linac (ERL). An intensive experimental R&D program engages the various elements of the accelerator, as described by 24 contributions to the 2007 PAC.Particle Accelerator Conference, 2007. PAC. IEEE; 07/2007 -
Conference Proceeding: Interaction Region Design for the Electron - Light Ion Collider ELIC
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ABSTRACT: The Electron-Light Ion Collider ELIC proposed by Jefferson Lab aims at a luminosity in the 10<sup>35</sup>cm<sup>-2</sup>sec<sup>-1</sup>range for collisions of 150 GeV protons on 7 GeV electrons [1, 2]. To achieve these high luminosities, very strong low-β focusing of low-emittance beams is required. Taking advantage of the unequal design proton beam emittances in the two transverse planes, an interaction region design based on superconducting quadrupole doublets has been developed. Compared with the original design in [2], this scheme provides larger beam apertures at lower magnetic fields, while potentially doubling the luminosity.Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the; 06/2005 -
Conference Proceeding: Electron Cooling of RHIC
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ABSTRACT: We report progress on the R&D program for electron-cooling of the Relativistic Heavy Ion Collider (RHIC). This electron cooler is designed to cool 100 GeV/nucleon at storage energy using 54 MeV electrons. The electron source will be a superconducting RF photocathode gun. The accelerator will be a superconducting energy recovery linac. The frequency of the accelerator is set at 703.75 MHz. The maximum electron bunch frequency is 9.38 MHz, with bunch charge of 20 nC. The R&D program has the following components: The photoinjector and its photocathode, the superconducting linac cavity, start-to-end beam dynamics with magnetized electrons, electron cooling calculations including benchmarking experiments and development of a large superconducting solenoid. The photoinjector and linac cavity are being incorporated into an energy recovery linac aimed at demonstrating ampere class current at about 20 MeV.Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the; 06/2005