EMMA (accelerator)

Acceleration was successfully demonstrated in EMMA, paving the way for future non-scaling FFAGs to meet important applications in energy, security and medicine.

A linear non-scaling FFAG is one in which a quantity known as the betatron tune is allowed to vary unchecked.

EMMA used the ALICE accelerator as a source of electrons and was situated in the same laboratory (specifically, in one of the experimental areas at the base of the Nuclear Structure Facility tower) at STFC's Daresbury site.

Non-scaling FFAGs are a good candidate for use in an accelerator-driven subcritical reactor system in which a non-critical fission core is driven to criticality by a small accelerator.

By May 2016, decommissioning of both EMMA and ALICE started, and in 2019 the process was completed, with most components being donated to other facilities.