(1) DIAGNOSTICS TOOLS for SMALL-SIZE BEAMS
(2) ACCELERATOR R & D at LAL-ORSAY

ABSTRACT

(1) The problem of measuring and controlling small beam sizes (much less than the mm) in linacs and transfer lines is particularly crucial for the main linacs of a Linear Collider, where the 6-D emittance has to be strongly reduced. The problem becomes more complicated when, as it is often the case, the beam intensity considered is very large. Some invasive and non invasive diagnostics, which could be of interest for such application, will be presented and compared between them.

(2) Since many years the Accelerator group at LAL-Orsay is being involved in the study and realization of small and medium energy electron linacs or of some particular components of more larger linacs. Some recent illustrations of this activity, related to electron injectors and RF couplers, will be given.