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May 25 – 27, 2022
America/Vancouver timezone

Status of IPC experiment at the Montreal Tandem

May 26, 2022, 10:00 AM
Auditorium (TRIUMF )



4004 Wesbrook Mall University of British Columbia Vancouver, BC V6T 2A3


Georges Azuelos


At the Montreal Tandem accelerator, an experiment is being setup to measure internal pair creation in 8Be, using a Daphne experiment MWPC and the scintillator bars surrounding it, covering nearly 4-pi. The preamps and data acquisition hardware have been designed and tested. The target, mounted on an Al foil and water-cooled is in a section of the beamline made of C fiber. The experiment will focus on the measurement of the X17 in IPC of the 18.15 MeV state of 8-Be. Assuming the ATOMKI evaluation of the electron-pair production rate from X17, Geant4 simulation predicts observation of a clear signal after about 2 weeks of data taking with 2 uA proton beam. The IPC measurement could eventually be extended to other nuclei: 10B, 12C and 4He.

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