Publications
Publication Information
| Title | Exploration of Spin Tune Modes in the EIC Electron Storage Ring |
| Authors | Fanglei Lin, Vasiliy Morozov, Amy Sy, Vadim Ptitsyn, H. Witte, S. Tepikian, Desmond Barber, Ulrich Wienands, Oleksii Beznosov, J. Ellison, Klaus Heinemann |
| JLAB number | (None) |
| LANL number | (None) |
| Other number | (None) |
| Document Type(s) | (Meeting) |
| Category: | Beam Dynamics |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Meeting Abstract compiled for IPAC21 | |
| Publication Abstract: | The design of the Electron-Ion Collider (EIC) aims to attain a high longitudinal electron polarization (at least 70%) at the collision points as required by the nuclear physics program. The design-orbit spin tune in the Electron Storage Ring (ESR) is approximately proportional to the beam energy. Therefore, the electron beam energy for collisions has to be chosen to avoid first-order spin-orbit depolarizing resonances. Depolarization due to such resonances excited by the synchrotron radiation, as well as synchrotron sidebands of these resonances, has been confirmed in spin tracking simulations for the ESR. In this paper, we discuss a technique that can make the design-orbit spin tune independent of the beam energy and avoid resonances with the betatron and synchrotron tunes, and thus improve the electron polarization. We explore the capability of implementing energy-independent integer and half integer spin tune modes in the ESR. |
| Experiment Numbers: | other |
| Group: | Ctr for Adv Stud of Accel |
| Document: | docx |
| DOI: | |
| Accepted Manuscript: | |
| Supporting Documents: | |
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