Author: Martí, Z.
Paper Title Page
WEPC024 LOCO in the ALBA Storage Ring 2055
 
  • G. Benedetti, D. Einfeld, Z. Martí, M. Muñoz
    CELLS-ALBA Synchrotron, Cerdanyola del Vallès, Spain
  
  ALBA is a 3 GeV 3rd gen­er­a­tion light source which achieved first stored beam in Febru­ary 2011, and will be com­mis­sioned dur­ing 2011. The ring com­pris­es of 112 in­de­pen­dent quadrupoles grouped in 14 fam­i­lies and 32 com­bined gra­di­ent dipoles pow­ered in se­ries. This paper re­views the pro­cess of re­cov­er­ing the de­sign lat­tice and the sym­me­try of the ma­chine, and the ef­fects on orbit and life­time. The main tool em­ploy for this has been the LOCO im­ple­men­ta­tion pro­vid­ed in the Mat­lab Mid­dle­Lay­er. First re­sults shows that the main ef­fect on the sym­me­try is the dif­fer­ence be­tween bend­ing mag­nets. As this ef­fect can not be com­pen­sat­ed lo­cal­ly at pre­sent at the bend­ings, a glob­al op­tics cor­rec­tion using all the quadrupoles is used.  
 
WEPC025 Modeling Results of the ALBA Booster 2058
 
  • G. Benedetti, D. Einfeld, U. Iriso, J. Marcos, Z. Martí, M. Muñoz, M. Pont
    CELLS-ALBA Synchrotron, Cerdanyola del Vallès, Spain
  
  The 3rd gen­er­a­tion light source ALBA is in the pro­cess of being com­mis­sioned. The full en­er­gy 3 GeV boost­er syn­chrotron was com­mis­sioned in the dur­ing 2010, ramp­ing the beam from ex­tract­ed from the LINAC from an en­er­gy of 110 MeV to the 3 GeV re­quired for in­jec­tion in the stor­age ring. The lat­tice is based in com­bined func­tion bend­ing mag­nets, pro­vid­ing a small emit­tance beam (< 12 nmrad) at ex­trac­tion. This paper re­views the agree­ment be­tween the op­tics mod­el­ing and the mea­sures per­formed dur­ing the com­mis­sion­ing, with spe­cial re­gard to the op­tics mea­sure­ment dur­ing the ramp­ing pro­cess. The re­sults from the mag­net­ic mea­sure­ment for the com­bined mag­nets while ramp­ing are in­clud­ed in the model to ex­plain the move­ment of the tunes dur­ing the ramp.  
 
THPC056 Orbit Studies during ALBA Commissioning 3020
 
  • M. Muñoz, G. Benedetti, D. Einfeld, Z. Martí
    CELLS-ALBA Synchrotron, Cerdanyola del Vallès, Spain
  
  The 3rd gen­er­a­tion light source ALBA is in the com­mis­sion­ing stage. This paper re­view the re­sults of the com­mis­sion­ing con­cern­ing the transver­sal beam be­hav­ior, in par­tic­u­lar the orbit cor­rec­tion sys­tem, re­sults from the beam based align­ment (BBA), and cou­pling. The orbit con­trol sys­tem of ALBA con­sists of 88 hor­i­zon­tal and ver­ti­cal cor­rec­tors, mount­ed as extra coils in the sex­tupole mag­nets, up to 104 LIB­ERA BPMs (bril­liance ver­sion). The cor­rec­tors mag­nets would be used for both stat­ic orbit cor­rec­tion and for the fast orbit feed­back mode, pro­vid­ing up to 1 mrad of cor­rec­tion in the stat­ic case. In phase one of the com­mis­sion­ing, the orbit has been cor­rect­ed down to val­ues of 50 um rms, with an es­ti­mat­ed emit­tance ratio in the order of 1% .