Novel method for the production of spin-aligned RI beams in projectile fragmentation reaction with the dispersion matching technique
Hyperfine Interactions(2012)
摘要
A novel method to produce spin-aligned rare-isotope (RI) beam has been developed, that is the two-step projectile fragmentation method with a technique of dispersion matching. The present method was verified in an experiment at the RIKEN RIBF, where an RI beam of 32 Al with spin alignment of 8(1) % was successfully produced from a primary beam of 48 Ca, with 33 Al as an intermediate nucleus. Figure of merit of the present method was found to be improved by a factor larger than 50 compared with a conventional method employing single-step projectile fragmentation.
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关键词
Nuclear spin, Nuclear moment, RI beam
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