Development of a RILIS ionisation scheme for gold at ISOLDE, CERN
Development of a RILIS ionisation scheme for gold at ISOLDE, CERN
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在 ISOLDE、CERN 开发 RILIS 黄金电离方案
DOI：
10.1007/s10751-006-9498-8
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发表时间：
2006
影响因子：
--
通讯作者：
Isolde Collaboration
中科院分区：
文献类型：
--
作者：
B. Marsh;V. Fedosseev;P. Kosuri;Isolde Collaboration
At the ISOLDE on-line isotope separation facility, the resonance ionisation laser ion source (RILIS) can be used to ionise reaction products as they effuse from the target. The RILIS process of laser step-wise resonance ionisation of atoms in a hot metal cavity provides a highly element selective stage in the preparation of the radioactive ion beam. As a result, the ISOLDE mass separators can provide beams of a chosen isotope with greatly reduced isobaric contamination. With the addition of a new three-step ionisation scheme for gold, the RILIS is now capable of ionising 26 of the elements. The optimal scheme was determined during an extensive study of the atomic energy levels and auto-ionising states of gold, carried out by means of in-source resonance ionisation spectroscopy. Details of the ionisation scheme and a summary of the spectroscopy study are presented.
