Speaker
Sandrina Fernandes
(CERN)
Description
The On-Line Isotope Separation (ISOL) method is used
at ISOLDE for the
production of intense radioactive ion beams of 70
different chemical elements
with the best possible beam purity. Within EURISOL,
direct targets are expected
to operate for at least 3 weeks at 100kW of primary
proton beam power. To
fabricate such targets many issues have to be
addressed, which includes the
ones related to diffusion in the target, effusion at the
surface, heat removal,
temperature distribution, ageing and an efficient target
and ion-source
combination to form a selective system.
This presentation will be focused on the development of
a new SiC target.
Off-line release studies were done at ISOLDE using
Rabit (Rapid p-Beam
Irradiation Transport) and ion-implantation techniques
to estimate the diffusion
coefficient of selected isotopes. Online tests were then
performed with the best
target material candidate.
I will finally briefly introduce the ongoing TARPIPE
experiment within EURISOL
DS, which aims the investigation of the target’s ageing
at high temperature
under proton irradiation, which starts at PSI in spring
2007.
Author
Sandrina Fernandes
(CERN)
