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First radioactive ions charge bred in REXEBIS at the REX-ISOLDE accelerator

REXEBIS is the charge breeder of the REX-ISOLDE postaccelerator. Radioactive 1+ ions produced at ISOLDE are accumulated, phase-space cooled and bunched in REXTRAP, and thereafter injected into the EBIS with an energy of up to 60 keV. The REXEBIS produced the first charge bred ions in August 2001 and has been running nearly non-stop from September to December 2001. It has delivered stable 39K10+ an

Hedonism, Preferentialism, and Value Bearers

Hedonism and preferentialism are two popular theories about what has final value, i.e. is valuable for its own sake. The latter theory is customarily portrayed as the wider of these, in that it ascribes value to much more than pleasures, viz., to any object of a final preference. By examining the metaphysical underpinnings of these views, it is argued that a fundamental issue between these theorie