The production target at ISAC

Abstract

The ISAC Radioactive Ion Beams (RIB) facility is operational since November 1998. The facility utilizes the Isotopic Separation On Line (ISOL) method to produce the RIB. The new ISAC facility at TRIUMF includes: a new building with 5000 m2 of floor space; a new beam line with adequate shielding to transport up to 100 μA of proton at 500 MeV from the existing H− cyclotron to two target stations, remote handling facility for the targets services, a high resolution mass separator, a linear accelerator and experimental facilities. A novel approach for the target/ion source station is described. The target/ion source assembly and heavy ion optics components are located in a shielded canyon under 2 m of steel shielding allowing high proton beam intensity on thick targets. Existing foil targets design can accommodate up to 50 μA beam intensities and the available intensities of many radionuclides can be expected to scale with the proton beam currents. But, production targets capable of withstanding proton beam i...