• B.D. Muratori, J.K. Jones, A. Kalinin, A.J. Moss, Y.M. Saveliev, R.J. Smith, S.L. Smith, S.I. Tzenov, A.E. Wheelhouse
  STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
• G. Cox
  STFC/DL, Daresbury, Warrington, Cheshire
• D.J. Holder
  Cockcroft Institute, Warrington, Cheshire
• D.J. Kelliher, S. Machida
  STFC/RAL/ASTeC, Chilton, Didcot, Oxon

The first re­sults from com­mis­sion­ing EMMA - the Elec­tron Model of Many Ap­pli­ca­tions- are sum­marised in this paper. EMMA is a 10 to 20 MeV elec­tron ring de­signed to test our un­der­stand­ing of beam dy­nam­ics in a rel­a­tivis­tic lin­ear non-scal­ing fixed field al­ter­nat­ing gra­di­ent ac­cel­er­a­tor (FFAG). EMMA will be the world's first non-scal­ing FFAG and the paper will out­line the char­ac­ter­is­tics of the beam in­ject­ed in to the ac­cel­er­a­tor as well as sum­maris­ing the re­sults of the ex­ten­sive EMMA sys­tems com­mis­sion­ing. The paper will re­port on the re­sults of sim­u­la­tions of this com­mis­sion­ing and on the progress made with beam com­mis­sion­ing.