R.E. Laxdal, R. Baartman, P. Bricault, M. Dombsky, G. Dutto, A. Mitra, R. Poirier, P. Schmor, G. Stanford (TRIUMF), A. Facco (INFN-LNL)
The ISAC facility at TRIUMF is now routinely delivering record intensities of radioactive ions to low energy experiments (E<=60keV). In brief, the facility includes a 500MeV proton beam (I<=100micA) from the TRIUMF cyclotron impinging on a thick target, an on-line source to ionize the radioactive products, a mass-separator for mass selection, an accelerator complex and experimental areas. The post-accelerator for ISAC includes a 35MHz RF Quadrupole (RFQ) to accelerate beams of A/q <= 30 from 2keV/u to 150keV/u and a post-stripper, 105MHz variable energy drift tube linac (DTL) to accelerate ions of 3 <= A/q <= 6 to a final energy from 0.15 to 1.5MeV/u. The RFQ has been fully commissioned and the DTL is being installed for final commissioning of the linac chain in Dec. 2000. Recently funds have been allocated for an extension to the ISAC facility, ISAC-II, to permit acceleration of radio-active ion beams up to energies of at least 6.5MeV/u for masses up to 150. The ISAC-II accelerator includes a room-temperature IH-linac to accelerate ions of A/q<=30 from 0.15 to 0.4 MeV/u and a post stripper super-conducting linac to contribute 42.7~MV of accelerating voltage. The present status of both the ISAC-I accelerator and the future ISAC-II project will be presented.
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