| Yhteenveto: | At JYFL-ACCLAB a Mass Analysing Recoil Apparatus (MARA) was built to per-
form nuclear spectroscopy of exotic nuclei with N=Z in the region A∼80 created
via fusion evaporation reactions at low energies (3-6 MeV/u). Fusion recoils are
collected with a detector system placed on the focal plane of MARA.
A limit of this technique is the presence of unwanted masses/isobars, created in the
reactions, that reach the focal plane. One way to reduce this source of background
is to use a detector as a veto at the target position to select and to exclude at
the focal plane the unwanted products. For this purpose JYUTube was installed
at MARA and tested with the 78 Kr+ 96 Mo → 174 Pt ∗ reaction. In this test, the
JYUTube showed an efficiency of 65% for 1 proton channel suppression and 80% for
2 protons channel suppression.
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