1. Experimental Demonstration of Hadron Beam Cooling Using Radio-Frequency Accelerated Electron Bunches
- Author
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Michiko Minty, P. Kankiya, A. Sukhanov, Igor Pinayev, L Nguyen, James Jamilkowski, Congcong Liu, George Mahler, Robert Hulsart, Margaret Harvey, P. Wanderer, Yichao Jing, A. Marusic, Jun Ma, Guillaume Robert-Demolaize, Freddy Severino, Xiaofeng Gu, S. Belomestnykh, C. Brutus, A. Drees, K. Hamdi, Patrick Inacker, Robert Michnoff, Zhengguo Zhao, Roberto Than, Tianmu Xin, J. Sandberg, Jesse Fite, Thomas Roser, Sergei Seletskiy, Travis Shrey, Wencan Xu, Vladimir Litvinenko, Mengjia Gaowei, Thomas Hayes, Kevin Smith, Gang Wang, H Zhao, A. Zaltsman, Michael Mapes, Toby Miller, Geetha Narayan, D. Weiss, Triveni Rao, J Halinski, S Nayak, S. Trabocchi, D. M. Gassner, Matthew Paniccia, Wolfram Fischer, Hong Ye Song, Dmitry Kayran, C. J. Liaw, L. Smart, M. Blaskiewicz, A. V. Fedotov, Erdong Wang, Michael Costanzo, C Mi, R Lehn, Vincent Schoefer, Ilan Ben-Zvi, Zeynep Altinbas, Vadim Ptitsyn, Salvatore Polizzo, M. Brennan, Kevin Mernick, Peter Thieberger, Lee Hammons, J. Kewisch, Binping Xiao, C Schultheiss, Donald Bruno, and Joseph Tuozzolo
- Subjects
Materials science ,Hadron ,General Physics and Astronomy ,Particle accelerator ,Electron ,Ion ,law.invention ,Nuclear physics ,Acceleration ,law ,Physics::Accelerator Physics ,Radio frequency ,Relativistic Heavy Ion Collider ,Beam (structure) - Abstract
Cooling of beams of gold ions using electron bunches accelerated with radio-frequency systems was recently experimentally demonstrated in the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. Such an approach is new and opens the possibility of using this technique at higher energies than possible with electrostatic acceleration of electron beams. The challenges of this approach include generation of electron beams suitable for cooling, delivery of electron bunches of the required quality to the cooling sections without degradation of beam angular divergence and energy spread, achieving the required small angles between electron and ion trajectories in the cooling sections, precise velocity matching between the two beams, high-current operation of the electron accelerator, as well as several physics effects related to bunched-beam cooling. Here we report on the first demonstration of cooling hadron beams using this new approach.
- Published
- 2020