  At the Montreal Tandem accelerator, an experiment is being set up to measure
internal pair creation from the decay of nuclear excited states using a
multiwire proportional chamber and scintillator bars surrounding it from the
DAPHNE experiment. The acceptance covers a solid angle of nearly 4$\pi$.
Preamplifiers and the data acquisition hardware have been designed and tested.
The water-cooled $^7$LiF target, mounted on an Al foil is in a thin carbon
fiber section of the beamline. The experiment will focus at first on a
measurement of the internal pair creation from the 18.15 MeV state of $^8$Be.
Assuming the ATOMKI evaluation of the electron-pair production rate from X17, a
Geant4 simulation predicts observation of a clear signal after about two weeks
of data taking with a 2 $\mu$A proton beam. The IPC measurement could
eventually be extended to the giant dipole resonance of $^8$Be, as well as to
other nuclei, in particular to $^{10}$B.
