Fringe Field Effects on Bending Magnets, Derived for TRANSPORT/TURTLE

Technical Report · Mon Aug 05 00:00:00 EDT 2013

DOI:https://doi.org/10.2172/1128418· OSTI ID:1128418

Molloy, Riley ^[1]; Blitz, Sam ^[1]

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1. Arizona State Univ., Tempe, AZ (United States)

A realistic magnetic dipole has complex effects on a charged particle near the entrance and exit of the magnet, even with a constant and uniform magnetic field deep within the interior of the magnet. To satisfy Maxwell's equations, the field lines near either end of a realistic magnet are significantly more complicated, yielding non-trivial forces. The effects of this fringe field are calculated to first order, applying both the paraxial and thin lens approximations. We find that, in addition to zeroth order effects, the position of a particle directly impacts the forces in the horizontal and vertical directions.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1128418
• Report Number(s): FERMILAB-TM-2564-AD-APC-PPD; arXiv eprint number arXiv:1310.8630
• Country of Publication: United States
• Language: English