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55 results on '"Dutheil, Yann"'

51. Overcoming the horizontal depolarizing resonance in the brookhaven AGS

Author

Huang, Haixin, Ahrens, Leif, Bai, Mei, Blaskiewicz, Michael, Brown, Kevin, Connolly, Roger, Dutheil, Yann, Fischer, Wolfram, Gardner, Chris, Glenn, Joseph, Hayes, Thomas, Méot, Francois, Poblaguev, Andrei, Ranjbar, Vahid, Roser, Thomas, Schoefer, Vincent, Smith, Kevin, Tepikian, Steven, Tsoupas, Nicholaos, Yip, Kin, Zelenski, Anatoli, Zeno, Keith, and Zhang, S.

Subjects
Physics::Accelerator Physics, 04 Hadron Accelerators, A04 Circular Accelerators, Accelerator Physics
Abstract

Imperfection and vertical intrinsic depolarizing resonances have been overcome by the two partial Siberian snakes in the AGS. The relatively weak but numerous horizontal resonances are the main source of polarization loss in the AGS. A pair of horizontal quads have been used to overcome these weak resonances. This technique needs very accurate jump timing. Fast roll-over magnet cycle has been used and it improves the polarization transmission efficiency near extraction when acceleration usually is slowing down. Emittance preservation is also important to mitigate polarization loss. Recent experimental results including jump quad timing and emittance preservation are presented in this paper., Proceedings of the 5th Int. Particle Accelerator Conf., IPAC2014, Dresden, Germany

52. RHIC performance with stochastic cooling for ions and head-on beam-beam compensation for protons

Author

Fischer, Wolfram, Alessi, James, Altinbas, Zeynep, Aschenauer, Elke, Atoian, Grigor, Bai, Mei, Beebe, Edward, Binello, Severino, Blackler, Ian, Blaskiewicz, Michael, Brennan, Joseph, Brown, Kevin, Bruno, Donald, Connolly, Roger, Costanzo, Michael, D'Ottavio, Ted, Drees, Kirsten, Dutheil, Yann, Fedotov, Alexei, Gardner, Chris, Gassner, David, Gu, Xiaofeng, Harper, Caitlin, Harvey, Margaret, Hayes, Thomas, Hock, Jon, Huang, Haixin, Hulsart, Robert, Jamilkowski, James, Kanesue, Takeshi, Kling, Nicholas, Laster, Jonathan, Liu, Chuyu, Luo, Yun, Maffei, David, Makdisi, Yousef, Mapes, Michael, Marr, Gregory, Marusic, Al, Méot, Francois, Mernick, Kevin, Michnoff, Robert, Miller, Toby, Minty, Michiko, Montag, Christoph, Morris, John, Narayan, Geetha, Naylor, Christopher, Nemesure, Seth, Okamura, Masahiro, Perez, Shawn, Pikin, Alexander, Pile, Philip, Poblaguev, Andrei, Ptitsyn, Vadim, Ranjbar, Vahid, Raparia, Deepak, Robert-Demolaize, Guillaume, Roser, Thomas, Sandberg, Jon, Schmidke, William, Schoefer, Vincent, Severino, Freddy, Shrey, Travis, Smith, Kevin, Steski, Dannie, Tepikian, Steven, Than, Roberto, Thieberger, Peter, Tuozzolo, Joseph, Van Kuik, Brian, Wang, Gang, White, Simon, Yip, Kin, Zaltsman, Alex, Zelenski, Anatoli, Zeno, Keith, and Zhang, Wu

Subjects
Physics::Accelerator Physics, Nuclear Experiment, 01 Circular and Linear Colliders, Accelerator Physics
Abstract

The Relativistic Heavy Ion Collider (RHIC) has two main operating modes with heavy ions and polarized protons respectively. In addition to a continuous increase in the bunch intensity in all modes, two major new systems were completed recently mitigating the main luminosity limit and leading to significant performance improvements. For heavy ion operation stochastic cooling mitigates the effects of intrabeam scattering, and for polarized proton operation head-on beam-beam compensation mitigated the beam-beam effect. We present the performance increases with these upgrades for heavy ions and polarized protons, as well as an overview of all operating modes past and planned., Proceedings of the 7th Int. Particle Accelerator Conf., IPAC2016, Busan, Korea

53. Status and Plans for the Polarized Hadron Collider at RHIC

Author

Bai, Mei, Ahrens, Leif, Aschenauer, Elke, Atoian, Grigor, Beebe-Wang, Joanne, Blaskiewicz, Michael, Brennan, Joseph, Brown, Kevin, Bruno, Donald, Connolly, Roger, D Ottavio, Ted, Drees, Kirsten, Dutheil, Yann, Eyser, Oleg, Fischer, Wolfram, Gardner, Chris, Glenn, Joseph, Gu, Xiaofeng, Harvey, Margaret, Hayes, Thomas, Huang, Haixin, Hulsart, Robert, Kirleis, Anders, Laster, Jonathan, Liu, Chuyu, Luo, Yun, Makdisi, Yousef, Marr, Gregory, Marusic, Al, Méot, Francois, Mernick, Kevin, Michnoff, Robert, Minty, Michiko, Montag, Christoph, Morris, John, Nemesure, Seth, Pile, Philip, Poblaguev, Andrei, Ptitsyn, Vadim, Ranjbar, Vahid, Robert-Demolaize, Guillaume, Thomas Roser, Schmidke, William, Schoefer, Vincent, Severino, Freddy, Shrey, Travis, Smirnov, Dmitri, Smith, Kevin, Steski, Dannie, Tepikian, Steven, Trbojevic, Dejan, Tsoupas, Nicholaos, Tuozzolo, Joseph, Wang, Gang, Wilinski, Michelle, Yip, Kin, Zaltsman, Alex, Zelenski, Anatoli, Zeno, Keith, and Zhang, S.

54. RHIC Polarized Proton Operation for 2013

Author

Ranjbar, Vahid, Ahrens, Leif, Aschenauer, Elke, Bai, Mei, Beebe-Wang, Joanne, Blaskiewicz, Michael, Brennan, Joseph, Brown, Kevin, Bruno, Donald, Connolly, Roger, D Ottavio, Ted, Drees, Kirsten, Dutheil, Yann, Fischer, Wolfram, Gardner, Chris, Glenn, Joseph, Gu, Xiaofeng, Harvey, Margaret, Hayes, Thomas, Huang, Haixin, Hulsart, Robert, Kirleis, Anders, Laster, Jonathan, Liu, Chuyu, Luo, Yun, Makdisi, Yousef, Marr, Gregory, Marusic, Al, Méot, Francois, Mernick, Kevin, Michnoff, Robert, Minty, Michiko, Montag, Christoph, Morris, John, Nemesure, Seth, Pile, Philip, Poblaguev, Andrei, Ptitsyn, Vadim, Robert-Demolaize, Guillaume, Thomas Roser, Schmidke, William, Schoefer, Vincent, Severino, Freddy, Shrey, Travis, Smirnov, Dmitri, Smith, Kevin, Steski, Dannie, Tepikian, Steven, Trbojevic, Dejan, Tsoupas, Nicholaos, Tuozzolo, Joseph, Wang, Gang, Wilinski, Michelle, Yip, Kin, Zaltsman, Alex, Zelenski, Anatoli, Zeno, Keith, Zhang, S., and Eyser, Oleg

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