U.S. Particle Accelerator School

Accelerator Magnet Engineering course

Sponsoring University:

Rice University


Accelerator Magnet Engineering


Jack Tanabe, retired

This course is an introduction to the design of conventional iron bound magnets used for low and medium energy accelerators. The material covered will include two-dimensional design and three-dimensional pole end chamfering techniques to achieve desired 2D and integrated field uniformity. The effects of mechanical fabrication and assembly tolerances on field quality as well as other applications of perturbation theory will be discussed. Two-dimensional mathematical constructs will be introduced to describe multipole magnet fields, error fields and provide the basis for the discussion of magnet measurements. Some work will be spent using POISSON two-dimensional magnet analysis software. The material will cover mechanical and electrical design practices including thermal issues, fabrication techniques, safety practices and techniques for matching power supply and distribution constraints. Issues associated with the design of slow (>msec) ramped magnets for injection and extraction as well as booster ring magnets will be covered. Magnet measurements, fiducialization, installation and alignment practices will be described. Prerequisites: Undergraduate Electromagnetism, Elementary Complex Analysis and some familiarity with issues associated with particle accelerators.