The ElectroMagnetic Mass Analyser (EMMA) is a new experimental facility at TRIUMF. Located after the ISAC-II accelerator, EMMA is a symmetric QQEDEQQ-type mass spectrometer capable of separating the recoiling nuclear reaction products from the beam. With the low emittance radioactive beams delivered from ISAC-II at energies up to at least 6.5 A MeV, EMMA is designed for fusion evaporation and transfer reactions of interest in nuclear structure and astrophysics studies. A vacuum mode separator, EMMA disperses ions according to mass/charge in the focal plane. During successful commissioning runs over the last year, the dispersion was measured and found to agree with ion optical calculations. Further, the angular, energy, and mass / charge acceptances were characterized and the first successful fusion evaporation reaction was performed. EMMA is currently being coupled with the TIGRESS γ-ray detector array, to perform detailed in-beam spectroscopy. Today, we present the current status of the EMMA mass spectrometer as it begins its experimental life.

Commissioning the EMMA spectrometer at TRIUMF

255th National Meeting (2018)

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