Rematching AGS Booster synchrotron injection lattice for smaller transverse beam emittances
- Brookhaven National Lab. (BNL), Upton, NY (United States)
The polarized proton beam is injected into the booster via the charge-exchange (H- to H+) scheme. The emittance growth due to scattering at the stripping foil is proportional to the beta functions at the foil. It was demonstrated that the current scheme of reducing the beta functions at the stripping foil preserves the emittance better; however the betatron tunes are above but very close to half integer. Due to concern of space charge and half integer in general, options of lattice designs aimed towards reducing the beta functions at the stripping foil with tunes at more favorable places are explored.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States). Alternating Gradient Synchrotron
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
- OSTI ID:
- 1344229
- Report Number(s):
- BNL--113508-2017-IR; KB0202011
- Country of Publication:
- United States
- Language:
- English
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