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Optical Properties of Quadrupole Multiplets for Sector Focusing in the Two-Mile Accelerator

Technical Report ·
DOI:https://doi.org/10.2172/4736429· OSTI ID:4736429
 [1]
  1. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Previous studies of focusing systems for the two-mile accelerator were based on a system of quadrupoles with 40-ft spacing. Tight alignment tolerances imposed by the 40-ft system prompted a study of the properties of a system of quadrupole multiplets (closely grouped doublets or triplets) with 330-ft spacing. The properties of an idealized system of equally spaced converging lenses are described, providing a good approximation of the behavior of multiplets. Properties of closely grouped and spaced doublets and triplets are then derived. Numerical examples are given for all cases, and the transformation matrices are given in a form general enough to be applied to problems involving special lenses with tapered spacings and to misalignment and perturbation problems. Tables display switchyard transport admittances for several final beam energies and various quadrupole specifications. (D.C.W.)
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-17-019421
OSTI ID:
4736429
Report Number(s):
SLAC-14; SLAC-R--014
Country of Publication:
United States
Language:
English