How to measure a beam – without touching it ?

Non-interceptive beam profile monitors are highly desirable in almost all particle accelerators. Such techniques are especially valuable in applications where real time monitoring of the beam properties is required while beam preservation and minimal influence on the vacuum are of the greatest importance. This applies to many kinds of accelerators such as high energy machines where the normal diagnostics cannot withstand the beam’s power, medical machines where treatment time is valuable and cannot be allocated to diagnostics and also low energy, low intensity accelerators where the beam’s properties are difficult to measure.
In a paper just published in Applied Physics Letters Vasilis Tzoganis, et al. from the Liverpool-based QUASAR Group present the design of a novel gas-jet based beam profile monitor which was developed and commissioned at the Cockcroft Institute.      find out more »