• U. Iriso
  CELLS-ALBA Synchrotron, Cerdanyola del Vallès
• S. Casalbuoni
  FZK, Karlsruhe
• G. Rumolo, F. Zimmermann
  CERN, Geneva

One of the key issues for the developments of superconducting insertion devices is the understanding of the beam heat load in the vacuum chamber. The beam heat load observed in the superconducting cold bore undulator installed in the ANKA storage ring is higher than the one predicted by the synchrotron radiation and resistive wall heating. A non linear increase of the dynamic pressure with the beam current is also observed in the cold bore. In order to investigate whether the nature of these effects is due to an electron cloud formation, we have performed several simulations using the ECLOUD code.

• U. Iriso, G. Benedetti, A. Olmos
  CELLS-ALBA Synchrotron, Cerdanyola del Vallès

The ALBA Linac is a turn-key system able to produce 4 nC electron beams at 100 MeV beams with a normalized emittance below 30 mm*mrad. Beam position stability below 0.1 mm is measured using new BPM electronics. Thorough analysis are carried out to measure the beam emittance, energy and energy spread. This paper discusses the measurement techniques, analysis method, and results obtained during the Linac commissioning.

• A.S. Setty, D. Jousse, J.-L. Pastre, F. Rodriguez
  THALES, Colombes
• G. Benedetti, D. Einfeld, A. Falone, U. Iriso, M. Muñoz, A. Olmos, F. Peréz, M. Pont, P. Sanchez
  CELLS-ALBA Synchrotron, Cerdanyola del Vallès
• A. Sacharidis
  EuroMev, Buc

A turn key 100 MeV linac was provided by THALES Communications in order to inject electrons into the booster synchrotron of ALBA*. The linac was commissioned in October 2008. This paper will remind the main features of the linac** and will give results obtained during the commissioning tests. The energy and emittance measurements have been done on the transfer line concieved and realized by CELLS. Specified and measured beam parameters will be compared to show the performance of the entire system.

* D. Einfeld "Progress of ALBA", EPAC08, Genoa, Italy, June 2008.
** A. Falone et Alt, "Status of the 100 MeV preinjector for the ALBA synchrotron", EPAC08, Genoa, Italy, June 2008.