THAM8Y01
The University of Liverpool, Liverpool, United Kingdom
Cockcroft Institute, Warrington, Cheshire, United Kingdom
Non-interceptive beam profile monitors are of great importance for many particle accelerators worldwide. Extra challenges are posed by high energy, high intensity machines and low energy low intensity accelerators. For these applications, existing diagnostics will not be suitable any more due to the high power of the beam or the very small intensities. In addition, many other accelerators ranging from medical to industrial would benefit from the availability of truly non-invasive and real-time beam profile monitors. This contribution presents the different beam monitoring options used at facilities around the world. After a general overview and a discussion of the figures of merit, it focuses on the design details and experimental results of a gas jet-based beam profile monitor at the Cockcroft Institute. It will be shown that this can be operated either as a supersonic gas jet in high vacuum or a residual gas monitor at higher pressures, basing imaging on either atom ionization or light emission.
