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FAZIA

 FAZIA is the detector par excellence dedicated to the study of nuclear thermodynamics. This research programme cannot be brought to a successful conclusion without achieving 4p detection. Nevertheless, on a shorter timescale, several avenues are open to us for making use of the partly completed detector or of a demonstration model. We have identified two interesting examples where part of FAZIA could be used for studying nuclear structure :

  •  The “inversed spectrometer” method : this method involves placing an isotopic multidetector like the FAZIA prototype on the dispersive plane of a spectrometer. The spectrometer is then no longer used for identifying fragments but instead for characterizing their kinematics. This way, two-particle correlations can be studied. Such a system could for example turn out to be extremely powerful in studying alpha condensates (see Figure 1).

Figure 1 : Example of spectrometer + FAZIA prototype, known as the “inversed spectrometer” configuration, for measuring two-particle correlations in the research into alpha structures

  • The direct use of the FAZIA prototype at the target exit instead of a spectrometer for identifying reaction products. This mode has the advantage of offering large angular acceptance with a very small footprint and would be ideally suited for fitting to ORGAM3 (the Germanium multidetector in the ALTO installation), especially with the relatively light beams from the Tandem (around mass 40). It goes without saying that the problems linked to elastic components must be studied in detail.

 

IPN

Institut de Physique Nucléaire Orsay - 15 rue Georges CLEMENCEAU - 91406 ORSAY (FRANCE)
UMR 8608 - CNRS/IN2P3

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