Head-on beam-beam compensation with electron lenses in the RHIC.
The working point for the polarized proton run in the Relativistic Heavy Ion Collider is constrained between 2/3 and 7/10 in order to maintain good beam lifetime and polarization. To further increase the bunch intensity to improve the luminosity, a low energy Gaussian electron beam, or an electron lens is proposed to head-on collide with the proton beam to compensate the large tune shift and tune spread generated by the proton-proton beam-beam interactions at IP6 and IP8. In this article, we outline the scheme of head-on beam-beam compensation in the RHIC and give the layout of e-lens installation and the parameters of the proton and electron beams. The involved physics and engineering issues are shortly discussed.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- Doe - Office Of Science
- DOE Contract Number:
- DE-AC02-98CH10886
- OSTI ID:
- 933074
- Report Number(s):
- BNL-79918-2008-CP; R&D Project: 18031; KB0202011; TRN: US0803998
- Resource Relation:
- Conference: EPAC 2008 - 11TH BIENNIAL EUROPEAN PARTICLE ACCELERATOR CONFERENCE; GENOA, ITALY; 20080623 through 20080627
- Country of Publication:
- United States
- Language:
- English
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