The ISAC project at TRIUMF

Development of a facility combining an isotope-separator-on-line (ISOL) with a post-accelerator, to produce energetic ion beams far from the valley of nuclear stability, was originally proposed for installation on one of the beam lines of the TRIUMF cyclotron about ten years ago. A test facility (TISOL) consisting of a target, ion source, and mass separator, but without a post accelerator, was subsequently installed and has been in use to support an experimental program and to aid in development of target/ion source systems. The facility is currently being augmented with the addition of a laser neutral atom trap for a proposed series of β decay and atomic parity non-conservation experiments, using selected radioactive alkali isotopes, to test some symmetry properties of the Standard Model. In addition, work has begun on a new upgraded facility consisting of remotely handleable target/ion source assemblies, a new mass separator with resolution m/Δm = 10,000, and post-acceleration to 1.5 MeV/u, for ions with A ≤ 30. (author)