Synchrotron tune adjustment by longitudinal motion of quadrupoles
Adjustment of the tune of a synchrotron is generally accomplished by globally varying the strength of the quadrupoles, either in the main quadrupole bus or in a set of dedicated trim quadrupoles distributed around the ring. An alternate scheme for tune control involves varying the strengths of quadrupoles only within a local insert, thereby adjusting the phase advance across the insert to create a ``phase trombone``. In a synchrotron built of permanent magnets, such as the proposed Fermilab Recycler Ring, tune adjustment may also be accomplished by constructing a phase trombone in which the longitudinal position rather than the strength of a number of quadruples is adjusted. Design philosophies and performance for such phase trombones are presented.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 378997
- Report Number(s):
- FNAL/C-96/189; CONF-9605189-4; ON: DE96050384; TRN: 97:000015
- Resource Relation:
- Conference: American Physical Society and the American Association of Physics Teachers joint meeting, Indianapolis, IN (United States), 2-5 May 1996; Other Information: PBD: Jul 1996
- Country of Publication:
- United States
- Language:
- English
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