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Fixed-Field Alternating-Gradient Particle Accelerators

Journal Article · · Physical Review
 [1];  [2];  [3];  [4];  [3]
  1. Univ. of Wisconsin, Madison, WI (United States)
  2. Univ. of Illinois at Urbana-Champaign, IL (United States)
  3. Univ. of Michigan, Ann Arbor, MI (United States)
  4. Iowa State Univ., Ames, IA (United States). Institute for Atomic Research
+ Show Author Affiliations
It is possible, by using alternating-gradient focusing, to design circular accelerators with magnetic guide fields which are constant in time, and which can accommodate stable orbits at all energies from injection to output energy. Such accelerators are in some respects simpler to construct and operate, and moreover, they show promise of greater output currents than conventional synchrotrons and synchrocyclotrons. Two important types of magnetic field patterns are described, the radial-sector and spiral-sector patterns, the former being easier to understand and simpler to construct, the latter resulting in a much smaller accelerator for a given energy. Further, a theory of orbits in fixed-field alternating-gradient accelerators has been worked out in linear approximation, which yields approximate general relationships between machine parameters, as well as more accurate formulas which can be used for design purposes. There are promising applications of these principles to the design of fixed-field synchrotrons, betatrons, and high-energy cyclotrons.
Research Organization:
Midwestern Universities Research Association (United States)
Sponsoring Organization:
US Atomic Energy Commission (AEC)
NSA Number:
NSA-11-000731
OSTI ID:
4356852
Journal Information:
Physical Review, Journal Name: Physical Review Journal Issue: 6 Vol. 103; ISSN 0031-899X
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
Country unknown/Code not available
Language:
English

References (10)

Orbital Stability in a Proton Synchrotron journal January 1949
The Dynamics of a Synchrotron with Straight Sections journal August 1949
The Paths of Ions in the Cyclotron I. Orbits in the Magnetic Field journal October 1938
The Acceleration of Electrons by Magnetic Induction journal July 1941
The Stability of Orbits in the Racetrack journal May 1946
Radiation Losses in the Induction Electron Accelerator journal February 1946
The Theory of the Synchrotron journal September 1946
Scattering of Particles by the Gas in a Synchrotron journal July 1948
Correction and Addendum: Scattering of Particles by the Gas in a Synchrotron journal January 1949
The Strong-Focusing Synchroton—A New High Energy Accelerator journal December 1952

Cited By (1)

Fringe field simulations of a non-scaling FFAG accelerator preprint January 2012

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Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BEAMS
BETATRONS
CONFIGURATION
CYCLOTRONS
EFFICIENCY
ENERGY RANGE
EQUATIONS
FFAG ACCELERATORS
LENSES
MAGNETIC FIELDS
MECHANICAL STRUCTURES
MOTION
OPERATION
ORBITS
PLANNING
Physics
SPIRAL SECTOR ACCELERATORS
STABILITY
SYNCHROTRONS
VARIATIONS
ZONES