Orateur
Description
The MORA project [1] aims to perform a high-precision measurement of the
D correlation in nuclear beta decay in order to search for CP violation,
using a transparent Paul trap combined with laser orientation
techniques. The experiment is currently installed at JYFL (Finland),
where it operates with a Mg beam provided by the IGISOL facility. In
the near future, MORA will be moved to the DESIR experimental hall
(GANIL, France), where measurements with both 23Mg and 39Ca beams will
be performed. This relocation is motivated by the higher beam
intensities and improved purity available at DESIR, which are required
to reach the targeted sensitivity.
To connect MORA to DESIR, a dedicated RFQ cooler-buncher (RFQ-CB) has
been built; the mechanical construction is now nearing completion, and
the commissioning will start by the end of this year. Installed a few
meters upstream of the MORA Paul trap, it is designed to deliver up to
10e7 ions per bunch into the trapping system, with a target capture of
up to 10e6 ions in the Paul trap.
This poster presents the current status of the RFQ-CB system. The RFQ-CB
design and the pulse drift tubes used for bunch energy matching are
briefly described, together with ion optics simulations performed using
SIMION. The status of the installation and the incoming commissioning of
the system will be discussed.
[1] P. Delahaye, E. Liénard, I. Moore et al., The MORA project,
Hyperfine Interactions 240, 1–13 (2019).