Author: Danner, S.
Paper Title Page
MOP040 General Strategy for the Commissioning of the ARAMIS Undulators with a 3 GeV Electron Beam 107
 
  • M. Calvi, M. Aiba, M. Brügger, S. Danner, R. Ganter, R. Ischebeck, L. Patthey, T. Schietinger, T. Schmidt
    PSI, Villigen PSI, Switzerland
 
  The com­mis­sion­ing of the first Swiss­FEL un­du­la­tor line (Aramis) is planned for the be­gin­ning of 2017. Each un­du­la­tor is equipped with a 5-axis camshaft sys­tem to re­motely ad­just its po­si­tion in the mi­crom­e­ter range and a gap drive sys­tem to set K-val­ues be­tween 0.1 and 1.8. In the fol­low­ing paper the beam-based align­ment of the un­du­la­tor with re­spect to the golden orbit, the de­f­i­n­i­tion of look-up ta­bles for the local cor­rec­tion strat­egy (min­i­miza­tion of un­du­la­tor field er­rors), the fine-tun­ing of the K-val­ues as well as the set­ting of the phase shifters are ad­dressed. When ap­plic­a­ble both elec­tron beam and light based meth­ods are pre­sented and com­pared.  
 
MOP041 Summary of the U15 Prototype Magnetic Performance 111
 
  • M. Calvi, M. Aiba, M. Brügger, S. Danner, R. Ganter, C. Ozkan, T. Schmidt
    PSI, Villigen PSI, Switzerland
 
  The first un­du­la­tor pro­to­type (U15) was as­sem­bled and mag­net­i­cally tested. The in­stru­men­ta­tion and the al­go­rithms de­vel­oped for the un­du­la­tor op­ti­miza­tion are pre­sented and a com­par­i­son among dif­fer­ent ap­proaches is re­viewed. The mag­netic mea­sure­ment re­sults be­fore and after the in­stal­la­tion of the vac­uum com­po­nents are dis­cussed. The sum­mary of the un­du­la­tor test with 100 MeV elec­tron beam is pre­sented and the im­pact of the ra­di­a­tion on the mag­net­ics is ad­dressed.  
 
MOP043 Magnetic Design of an Apple III Undulator for SwissFEL 116
 
  • T. Schmidt, A. Anghel, P. Boehler, M. Brügger, M. Calvi, S. Danner, P. Huber, A. Keller, M. Locher
    PSI, Villigen PSI, Switzerland
 
  In the frame of the Swiss­FEL pro­ject a soft x-ray line is planned in the com­ing years to cover the wave­length be­tween 0.7 and 7.0nm. Based on the good ex­pe­ri­ence at the SLS stor­age ring with Apple un­du­la­tor as source of vari­able po­lar­ized light, Apple III type un­du­la­tors are also fore­seen at the Swiss­FEL. In this paper the de­sign of these de­vices is in­tro­duced and the pre­lim­i­nary mag­netic con­fig­u­ra­tion to­gether with the op­ti­miza­tion strat­egy is pre­sented in de­tails.