U.S. Particle Accelerator School

Novel High-Gradient Accelerating Structures course

Sponsoring University:

Massachusetts Institute of Technology (MIT)


Novel High-Gradient Accelerating Structures


Sergey Antipov and Chunguang Jing, Euclid Techlabs LLC / Argonne National Lab

Tentative class schedule

Purpose and Audience
This course is an introduction to the design and theory of advanced high gradient accelerator structures and is suitable for graduate students. The course will cover the topics of interaction of a charge particle beam with dielectric loaded structures, photonic band gap accelerating structures, metamaterials and other exotic electromagnetic configurations.

Either previous coursework or a general understanding of electromagnetic theory and electrodynamics (at the level of "Introduction to Electrodynamics" by D. J. Griffiths and "Classical Electrodynamics" by J. D. Jackson). Some coursework in math methods; knowledge of differential equations in particular will be assumed.

It is the responsibility of the student to ensure that he or she meets the course prerequisites or has equivalent experience.

This course will focus on the advanced accelerating structures such as dielectric loaded waveguides and photonic band gap structures. There will be a review of several other electromagnetic structures. The instructor will present lectures on theoretical principles, discuss the accelerating structure design and parameter optimization. The lectures will be followed up by laboratory sessions that will include demonstrations and computer simulations of dielectric loaded structure design, photonic band gap engineering, etc.

Instructional Method
This course includes a series of lectures followed by computer lab sessions on related subject matter. Laboratory sessions will include simulations of accelerating structure design and characterization (eigenmodes, S-parameters, Q-factor, etc.). [the software will be announced later - either Comsol/CST/HFSS] Students will write and submit lab reports for the lab exercises. The instructor will assign additional problems for completion outside of scheduled class time.

Course Content
The lectures begin with a historical overview of accelerators and their applications. There will be a review of conventional accelerator technology. The main focus of the course are two types of novel high-gradient accelerating structures: dielectric loaded waveguide and photonic band gap structure. The general theoretical basis of these concepts will be introduced. The theory will be followed up by numerical examples and exercises in the computer lab. Actual accelerating structures that were tested in various labs will be presented and their accelerating parameters will be discussed. Design process will be covered with simulations (eigenmodes, S-parameters, Q-factor, coupler design aspects). The instructor will closely relate the laboratory sessions to the subject matter in the lectures.

Course References
Instructor will provide copies of lectures to include W. Gai and C. Jing, book chapter "The Dielectric-Loaded Accelerating Structure", Periodic Structures (2006) ISBN: 81-308-0032-2, editors: Maurizio Bozzi and Luca Perregrini. "Photonic Crystals: Molding the Flow of Light" by John D. Joannopoulos as well as other selected papers.

Credit Requirements
The basis for student evaluations are performance; homework assignments (35 % of final grade); computer/lab sessions (35 % of final grade); and a final exam (30% of final grade).

IU/USPAS course number P671