Misalignment and Quadrupole Error Problems Affecting the Choice of Multiplet Type for Sector Focusing of the Two-Mile Accelerator

Technical Report · Fri Mar 01 04:00:00 EST 1963

DOI:https://doi.org/10.2172/4666225· OSTI ID:4666225

Helm, R. H. ^[1]

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1. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Calculations for several quadrupole multiplet combinations spaced at sector intervals are presented. Four representative cases ---the Spaced Doublet, Close Doublet, Spaced Triplet, and Close Triplet---are considered. These alternative systems are compared in such a way as to provide a basis for deciding which would be more favorable for use in the two-mile accelerator. Consequently the emphasis is on errors whose effects depend on the structure of the multiplet, although some structure-independent effects are included for completeness. Stray magnetic fields, gross misalignments of the accelerator axis, and r-f field asymmetries specifically are excluded from the discussion, since beam perturbations by such effects are expected to be nearly independent of the multiplet type. (auth)

• Research Organization: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: US Atomic Energy Commission (AEC); USDOE
• DOE Contract Number: AC02-76SF00515
• NSA Number: NSA-17-026646
• OSTI ID: 4666225
• Report Number(s): SLAC-15; SLAC-R--015
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CONFIGURATION
ELECTRON BEAMS
ERRORS
LENSES
LINEAR ACCELERATORS
MAGNETIC FIELDS
MAGNETS
NUMERICALS
OPTICAL SYSTEMS
PREPARATION
QUADRUPOLES
USES