The Installation Of A Prototype Online Isotope Separator At Triumf (Tisol)

A test ISOL (TISOL) has been designed and constructed mainly for the ion-source development work necessary for the proposed TRIUMF-ISOL Facility. The ion-beam transport and isotope separator system consists of two quadrupoles and a 90 ° vertical-bend dipole (QQD). One special feature of TISOL is that the relative position of the quadrupole doublet may be adjusted so as to accommodate a large variety of target-ion-sources (TIS). These will include surface ionization, plasma, on-line Electron Cyclotron Resonance (ECR) and laser-based ion sources. The performance of the QQD for various TIS systems will be discussed. The calculated resolution (based on second-order TRANSPORT) for an emittance of 25 π mmmrad in the bend plane and 120 π mmmrad in the non-bend plane is about one in 1000. The facility is presently under development and the optimal optical configuration has not yet been achieved.