Estimates of Damped Energy Spread and Emittance in a Two Energy Storage Ring Cooler

Conference · Sun Aug 01 00:00:00 EDT 2021

DOI:https://doi.org/10.18429/JACoW-IPAC2021-MOPAB240· OSTI ID:1973753

Dhital, B. ^[1]; Krafft, G.A. ^[2]; Derbenev, Y.S. ^[3]; Douglas, D. ^[3]; Hutton, A. ^[3]; Lin, F. ^[3]; Morozov, V.S. ^[3]; Zhang, Y. ^[3]

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1. Old Dominion Univ., Norfolk, VA (United States)
2. Old Dominion Univ., Norfolk, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
3. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

In this paper we provide estimates of the damped energy spread and emittance in a two-energy storage ring cooler. Two energy storage rings have two loops at markedly different energies, one at low energy and the other at high energy. In a cooling application the low energy ring has a cooling section to cool the ion beam and the high energy ring may have a wiggler section to enhance the damping effect on electron beam. The linear optics in the cooling section is designed to attain the maximum cooling of ion beams. Similarly, the linear optics in the wiggler section is designed to attained the required equilibrium emittance and energy spread. Hence, the radiation events in these two rings are different and independent. Since the values of damped energy spread and emittance depend on a range of parameters related to lattice design and rings energies, we present analytical calculations along with simulation results to estimate the values of damped energy spread and emittance in a two energy storage ring cooler.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1973753
• Report Number(s): JLAB-ACC-21-3614; DOE/OR/23177-6195
• Resource Relation: Conference: IPAC2021 - Proceedings, Campinas, SP, Brazil, May 24-28, 2021
• Country of Publication: United States
• Language: English