We use cookies on this site. By browsing our site you agree to our use of cookies. Close this message Find out more

Home > Physics > Research > Particle Physics > John Adams Institute > Cavity beam position monitors
More in this section John Adams Institute

Cavity beam position monitors


Beam position monitors are essential devices for the control of charged particle beams. The beam orbit within an accelerator must be precisely known, for machine protection, beam alignment with respect to magnetic elements, dispersion measurement, lattice model vertication, orbit correction, and feedback. The BPMs deployed at ATF2 are the result of approximately a decade of research into high resolution cavity based BPMs. 

There are two common types used denoted by their resonant frequency; C and S-band. In total there are 40 high performance cavity BPMs installed at ATF2, the largest system of its class in the world. The John Adams Institute at Royal Holloway is responsible for the S-band electronics and the entire readout digital and software system for both the C and S-band systems. We are also actively collaborating with KEK, SLAC and KNU scientists to develop  more advanced systems, such as higher resolution or faster response time (latency). This work will lead onto the BPM systems required by very challenging machines such as CLIC. 

Technical details can be found on our collaborative web pages; Cavity beam position monitor systems TWiki.


Comment on this page

Did you find the information you were looking for? Is there a broken link or content that needs updating? Let us know so we can improve the page.

Note: If you need further information or have a question that cannot be satisfied by this page, please call our switchboard on +44 (0)1784 434455.

This window will close when you submit your comment.

Add Your Feedback