Beam Instrumentation and Diagnostics

Lecture notes to Beam Instrumentation and Diagnostics is available here. This course is presented within half a week at the Joint University Accelerator School in Archamps, close to Geneva.

The course gives an overview of the most frequently used beam diagnostics instruments at electron and proton accelerators, putting about equal weight to LINACs and synchrotrons. In addition, some applications for their use during operation and accelerator physics investigation are discussed.

The outline of the talk is orientated on the beam quantities:

1- Beam current measurements using transformers, Faraday cups and
particle detectors

2- Beam profile measurements using various methods, like
scintillators screens, SEM-grids, wire scanners, residual gas monitors
and synchrotron radiation

3- Transverse emittance measurements with slit-gird devices or
reconstruction using quadrupole variation

4- The principle of rf pick-ups for beam position measurements as well
as tune or other lattice function determinations

5- Longitudinal measurements of momentum spread and bunch structure
using pick-ups, particle detectors or synchrotron radiation

6- Schottky noise analysis for momentum spread and tune determination

7- Beam loss detection for beam alignment and machine protection.

Prerequisites: A good knowledge of general physics is needed, as well as the basics in accelerator theory. The first year university mathematics is presumed, including matrix calculus, Fourier transformation and complex numbers. Only basic knowledge of detector physics, high frequency technologies and electronics is needed, more complex devices will be discussed.

Download Script on Beam Diagnostics and Instrumentation

by P. Forck

pdf file (9 MB)

Download transparencies of lectures as pdf:

Chapter 1: Demands for beam diagnostics

Chapter 2: Measurement of beam current

Chapter 3: Measurement of beam profile

Chapter 4: Measurement of transverse emittance

Chapter 5: Pick-ups for bunched beams

Chapter 6: Measurement of longitudinal parameters

Chapter 7: Schottky noise analysis

Chapter 8: Beam loss detection

Chapter 9: Conclusion