Coupling of a He-jet transfer system to a Cs sputter ion source for the acceleration of radioactive ions with the Chalk River MP Tandem accelerator

The concept of coupling a He-jet transfer system to the negative-ion sputter source of the Tandem accelerator at Chalk River has been tested, Negative-ion beams of the radioactive isotopes: Cl-34m, Co-56, (CU)-C-60 and Ag-103 were extracted from a Cs+ sputter ion source by sputtering cathodes that were covered with radioactivity-laden aerosol deposits from a gas-jet transfer system. Efficiencies of 1 to 25% were observed with about 50% of the deposit sputtered in less than one minute, A fast ion-source sample changer and a pneumatically-positioned target chamber have been installed at the MP Tandem accelerator. They are coupled by a He-jet transfer system, permitting the alternate acceleration of stable and radioactive ions.