Study of the AGS Tune Control, Especially at Extraction
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
During the first period the high field quads have been programmed in such a way that the working point of the machine was at $$(\upsilon_x, \upsilon_y)$$ = (8.71 ± 0.01, 8.80 ± 0.01) during the second half of the acceleration cycle until just before extraction. A further increase of the tunes was not possible due to current limitations of the power supplies. The existing radial shift before extraction caused the tunes to cross at that time. Removing the radial shift at extraction was not possible, while simultaneously keeping extraction losses low (extraction losses are defined as acceptable when H5 < 0.5% and H10 < 1.0%). It was decided that a separate study of the present extraction set-up was necessary in order to understand this phenomena.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 1130936
- Report Number(s):
- BNL--104080-2014-IR
- Country of Publication:
- United States
- Language:
- English
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