• A. Hofmann, M. Fitterer, M. Klein, A.-S. Müller, K.G. Sonnad
  KIT, Karlsruhe
• G. Blokesch
  PPT, Dortmund
• E. Huttel, N.J. Smale
  FZK, Eggenstein
• S. Marsching, T. Weis
  DELTA, Dortmund
• C. Piel
  ACCEL, Bergisch Gladbach
• R. Weigel
  Max-Planck Institute for Metal Research, Stuttgart

Funding: This work has been supported by the Initiative and Networking Fund of the Helmholtz Association under contract number VH-NG-320.

The microtron of the ANKA injector is presently equipped with a diode- type electron gun, which produces long pulses. A new thermionic DC triode-type electron gun has been ordered and foreseen for installation in the ANKA injector. The new gun allows single bunch as well as long pulse operation, thus offering the possibility to study beam properties in single bunch operation. This is particularly of interest for the investigation of the short bunch dynamics in the generation of coherent THz radiation. Furthermore, the new gun will make time resolved measurement possible. Simulations of the gun-to-microtron transport with special emphasis on the emittance evolution e.g. due to space charge have been done. Measurements of the gun performance are presently underway and are summarised in this paper.

• I. Mardor, D. Berkovits, I. Gertz, A. Perry, J. Rodnizki, L. Weissman
  Soreq NRC, Yavne
• K. Dunkel, F. Kremer, M. Pekeler, C. Piel, P. vom Stein
  ACCEL, Bergisch Gladbach

The Soreq Applied Research Accelerator Facility, SARAF, is currently under construction at Soreq NRC. SARAF is based on a continuous wave (CW), proton/deuteron RF superconducting linear accelerator with variable energy (5–40 MeV) and current (0.04-2 mA). SARAF is designed to enable hands-on maintenance, which implies beam loss below 10^-5 for the entire accelerator. Phase I of SARAF consists of a 20 keV/u ECR ion source, a low energy beam transport section, a 4-rod RFQ, a medium energy (1.5 MeV/u) transport section, a superconducting module housing 6 half-wave resonators and 3 superconducting solenoids, a diagnostic plate and a beam dump. Phase II will include 5 additional superconducting modules. The ECR source is in routine operation since 2006, the RFQ is in routine operation with protons since 2008 and has been further operated with molecular hydrogen and deuterons. The superconducting module is being operated and characterized with protons. Phase I commissioning results, their comparison to beam dynamics simulations and Phase II plans will be presented.