A cylindrical Penning trap for capture, mass selective cooling, and bunching of radioactive ion beams

[摘要] A Penning trap ion accumulator, cooler, and buncher for low-energy ion beams has been developed for the ISOLTRAP mass spectrometer at ISOLDE/CERN. A cylindrical electrode configuration is used for the creation of a nested trapping potential. This is required for efficient accumulation of externally produced ions and for high-mass selectivity by buffer gas cooling. The design goal of a mass resolving power of about 1 x 10(5) has been achieved, Isobar separation has been demonstrated for radioactive rare-earth ion beams delivered by the ISOLDE on-line mass separator.

[发布日期] 1997-04-01

[效力级别]  Proceedings Paper

[关键词] Penning trap;mass separation;ion cooling;ion accumulation