Proof-of-principle experiment for FEL-based coherent electron cooling

Conference · Sun Aug 21 00:00:00 EDT 2011

OSTI ID:1029585

Litvinenko, V N; Belomestnykh, S; Ben-Zvi, I; Brutus, J C; Fedotov, A; Hao, Y; Kayran, D; Mahler, G; Marusic, A; Meng, W; McIntyre, G; Minty, M; Ptitsyn, V; Pinayev, I; Rao, T; Roser, T; Sheehy, B; Tepikian, S; Than, Y; Trbojevic, D ; Tuozzolo, J; Wang, G; Yakimenko, V; Poelker, M; Hutton, A; Kraft, G; Rimmer, R; Bruhwiler, D L; Abell, D T; Nieter, C; Ranjbar, V; Schwartz, B T; Vobly, P; Kholopov, M; Shevchenko, O; Mcintosh, P; Wheelhouse, A

Coherent electron cooling (CEC) has a potential to significantly boost luminosity of high-energy, high-intensity hadron-hadron and electron-hadron colliders. In a CEC system, a hadron beam interacts with a cooling electron beam. A perturbation of the electron density caused by ions is amplified and fed back to the ions to reduce the energy spread and the emittance of the ion beam. To demonstrate the feasibility of CEC we propose a proof-of-principle experiment at RHIC using SRF linac. In this paper, we describe the setup for CeC installed into one of RHIC's interaction regions. We present results of analytical estimates and results of initial simulations of cooling a gold-ion beam at 40 GeV/u energy via CeC. We plan to complete the program in five years. During first two years we will build coherent electron cooler in IP2 of RHIC. In parallel we will develop complete package of computer simulation tools for the start-to-end simulation predicting exact performance of a CeC. The later activity will be the core of Tech X involvement into the project. We will use these tools to predict the performance of our CeC device. The experimental demonstration of the CeC will be undertaken in years three to five of the project. The goal of this experiment is to demonstrate the cooling of ion beam and to compare its measured performance with predictions made by us prior to the experiments.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
• Sponsoring Organization: DOE - OFFICE OF SCIENCE
• DOE Contract Number: DE-AC02-98CH10886
• OSTI ID: 1029585
• Report Number(s): BNL-96405-2011-CP; R&D Project: KBCH139; 18054; KB0202011; TRN: US1105806
• Resource Relation: Conference: 33rd International Free Electron Laser Conference (FEL 2011); Shanghai, China; 20110821 through 20110826
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
COMPUTERIZED SIMULATION
ELECTRON BEAMS
ELECTRON COOLING
ELECTRON DENSITY
ELECTRONS
FREE ELECTRON LASERS
HADRONS
HEAT EXCHANGERS
ION BEAMS
LUMINOSITY
PERFORMANCE
SIMULATION
relativistic heavy ion collider