U.S. Particle Accelerator School

Accelerator and Beam Diagnostics course

Sponsoring University:

University of New Mexico


Accelerator and Beam Diagnostics


Willem Blokland, Tom Shea and Alexander Zhukov, Oak Ridge National Lab; John Byrd, Lawrence Berkeley National Lab and Uli Raich, CERN

Equipment on loan from Agilent Technologies, National Instruments, Tektronix, Newark

Purpose and Audience
This course presents an overview of accelerator beam instrumentation emphasizing the basic measurements such as beam position, current, profile, and losses. Lectures and labs will provide a complete overview from concept to commissioning of the beam instrument. This course is intended for the experimental graduate, advanced undergraduate students, and postdoctoral fellows, who are starting into accelerator instrumentation, as well as for accelerator operators who are seeking a better understanding of beam measurement methods.

Understanding of basic electrodynamics and electronics. Helpful: basic accelerator physics.

The objective of the course is to understand the physical principles behind the instrumentation as well as the practical aspects of implementing an instrument such as noise issues and integrating the instrument in the control system. Students will gain practical experience through the lab exercises and work out problems through homework assignments.

Instructional Method
The course will consist of lectures in combination with lab exercises and homework.

The course will start with an introduction to the different beam diagnostics used in accelerators. Topics include the measurements of beam characteristics such as the position using strip lines and cavity excitation, the current using current transformers, the profiles using scintillation screens and wire scanners, and the measurement of transverse emittance using the slit-grid method, pepper-pot devices, and wire scanners. Other topics are the beam loss monitors and advanced beam instruments such as the laserwire. The labs consists of setups with detectors such as a stripline, cavity, loss monitor, and current transformer. Students are required to keep a logbook documenting their progress on the labs.

Reading requirements
On-line notes will be provided (we recommend that you bring a laptop). Background material will be provided in advance of the course. Basic knowledge about accelerator physics will be useful: “An Introduction to the Physics of High Energy Accelerators”, Wiley & Sons Publishers (1993) by Donald A. Edwards and Michael J. Syphers or "Accelerator Physics" by S.Y. Lee. World Scientific, 1999.
Reference material: Lecture Notes on Beam Instrumentation and Diagnostics by Peter Forck

Credit requirements
The students will be graded based on their homework and lab assignments.