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EN Seminar
The ISOLDE RILIS: Current Capabilities, Upgrades and the New Offline Development Laboratory (LARIS)
by
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Europe/Zurich
6/2-024 - BE Auditorium Meyrin (CERN)
Description
At ISOLDE radioactive isotopes are produced as the 1.4 GeV proton beam of the CERN PSB synchrotron impinges on a thick target. On account of its high efficiency, speed and unmatched selectivity, the Resonance Ionization Laser Ion Source (RILIS) is the preferred method for ionizing the nuclear reaction products as they effuse out of the target. By exploiting the unique electronic energy level ‘fingerprint’ of a chosen element, the RILIS process of laser step-wise resonance ionization enables an ion beam of high chemical purity to be sent through the mass selective separator magnet. The isobaric purity of a beam of a chosen isotope is therefore greatly increased. The RILIS, comprising of up to three frequency tunable pulsed dye lasers has recently been upgraded with the installation of a Nd:YAG pump laser as a replacement for the old Copper Vapor Laser system. This first phase in the RILIS upgrade has been implemented in conjunction with the construction of a new offline spectroscopy laboratory (LARIS) which is essential for the smooth implementation of the new laser and for the future development of the RILIS in terms of efficiency, selectivity and applicability. The details of current RILIS system and plans for the next upgrade phase will be presented, as will the results of the first in a series of resonance ionization spectroscopy studies performed at the LARIS laboratory.
Organised by
Stefano Sgobba (EN-MME)
