Speaker
Description
GANIL has been producing many stable beams for
nearly 40 years. Constant progress has been made in
terms of intensity, stability and reliability. The
intensity for some stable metallic beams now exceeds
or approaches the pμA level at an energy up to 95
MeV/u: 1.14 pμA for 36S (65% enriched) at 77
MeV/u, 0.35 pμA for 58Ni (63%) at 74 MeV/u. The
presentation highlights recent results obtained for
28Si, 184W and 130Te using the GANIL s LCO
(Large Capacity Oven) on the ECR4 ion source. To
produce the tungsten beam, two injection methods
were compared. For the first one, we evaporated
some tungsten trioxide (WO3) with GANILs LCO.
For the second one, the injection in the plasma
chamber was made by using MIVOC (Metallic Ions
from VOlatile compounds) with a tungsten
hexacarbonyl (W(CO)6) compound. It was the first
time that we used metal carbonyl compounds and the
result is promising. All the tests have been qualified
to obtain the level of intensity and beam stability.
Theses good results led us to propose them for
Physics experiments.