production of ionic and atomic beams of alkaline elements

摘要: Abstract An on-line mass spectrometer has been developed and used to perform atomic nuclear spectroscopy on long series of alkali isotopes including nuclei far from stability. The apparatus was either the ISOLDE separator or directly PS, proton beam. In case spectroscopy, a thermal beam is needed. As delivers 60 keV ions, high efficiency “ion-to-atom coverter” developed. all cases, an “ionizer” required produce 10 ions for ion source spectrometer. These two special devices are described, their consequent delay times discussed. different targets which have PS experiment presented available yields release compared.