Superconducting racetrack booster for the ion complex of MEIC

16th Workshop on High Energy Spin Physics

Filatov, Yu^2,3 ; Kondratenko, A.M.^1 ; Kondratenko, M.A.^1 ; Kovalenko, A.^2 ; Derbenev, Ya S.^4 ; Lin, F.^4 ; Morozov, V.S.^4 ; Zhang, Y.^4

Science and Technique Laboratory Zaryad, Novosibirsk

630090, Russia^1

Joint Institute for Nuclear Research, Dubna

141980, Russia^2

Moscow Institute of Physics and Technology, Dolgoprudny

141700, Russia^3

Jefferson Lab, 12000 Jefferson Avenue, Newport News

VA

23606, United States^4

关键词: High currents;    Ion complexes;    Ion polarization;    Jefferson Lab;    Medium-energy electron;    Operating efficiency;    Operation cycles;    Space charge effects;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/678/1/012015/pdf
DOI  :  10.1088/1742-6596/678/1/012015

来源: IOP

【 摘 要 】

The current design of the Medium-energy Electron-Ion Collider (MEIC) project at Jefferson lab features a single 8 GeV/c figure-8 booster based on super-ferric magnets. Reducing the circumference of the booster by switching to a racetrack design may improve its performance by limiting the space charge effect and lower its cost. We consider problems of preserving proton and deuteron polarizations in a superconducting racetrack booster. We show that using magnets based on hollow high-current NbTi composite superconducting cable similar to those designed at JINR for the Nuclotron guarantees preservation of the ion polarization in a racetrack booster up to 8 GeV/c. The booster operation cycle would be a few seconds that would improve the operating efficiency of the MEIC ion complex.