Keyword: ISAC
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MOC01 Progress and Plans for High Mass Beam Delivery at TRIUMF linac, rfq, target, ion 33
  • M. Marchetto
    TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
  ISAC is a TRIUMF facility for production and post-acceleration of radioactive ion beams (RIB). The RIBs are produced in two targets using a 500 MeV proton of up to 0.1 mA. The produced radioactive species are then ionized, extracted up to 60 kV, mass selected and transported to either the low energy experimental area or to the post-accelerators. The first stage of acceleration is accomplished via an RFQ followed by a DTL; at this medium stage the energy ranges between 0.15 MeV/u and 1.8 MeV/u for 3≤A/q≤7. The second stage of the acceleration uses a 40 MV superconducting linac for a final energy up to 18 MeV/u. High mass (>30) beams need multiple charges to be accepted by the RFQ. The single charge ions out of the target source are charge bred using an ECR charge state booster. The breeding process generates a significant amount of background contamination that masks the desired ions inside a mixed ”cocktail” beam. Such a cocktail needs to be cleaned of contaminants. An unprecedented effort is going on at TRIUMF trying to clean the high mass cocktail beams using the accelerator chain as filter. The progress and future plans of the project will be presented in this paper.  
slides icon Slides MOC01 [3.144 MB]  
MOC03 Operational Considerations for Future Multi-user RIB Facilities TRIUMF, controls, linac, cyclotron 41
  • A.C. Morton
    TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
  TRIUMF's ISAC is an ISOL-type RIB facility. RIB are produced in direct reactions of 480–500 MeV protons from TRIUMF's main cyclotron on thick targets in one of two production target stations. Like other such facilities, ISAC is only capable of serving a single RIB user at any given time, though simultaneous delivery of stable and radioactive beams to different experimental areas is possible. With the construction of ARIEL, the Advanced Rare-IsotopE Laboratory, ISAC will gain a second production front end. RIB will be produced by photofission on actinide targets using electrons from a new superconducting electron linac. This will give ISAC the ability to serve two RIB experiments concurrently with beams produced by different reaction mechanisms in separate target areas (with delivery of a third, stable, beam still possible). The shift from single-user to multi-user RIB operation will introduce significant new complexity to beam delivery, requiring new tools and techniques for beam time to be used efficiently. A first look at the potential operational requirements of a multi-user RIB facility will be discussed.  
slides icon Slides MOC03 [4.945 MB]