在JYFLTRAP上制备短寿命核的同质异能态纯束
Preparing isomerically pure beams of short-lived nuclei at JYFLTRAP
摘要：
在JYFLTRAP串联潘宁阱系统上开发了一种制备质量分辨能力超过100，000的异构清洁离子样品的新方法。该方法利用偶极射频激励的离子运动与分离的振荡领域中的精密陷阱。在随后再转移到净化阱期间，污染物被拒绝，因此，剩余的束被异构地清洁。这种新开发的方法适用于非常高分辨率的清洁，并且比迄今为止在潘宁阱质谱中使用的方法至少快五倍。
英文摘要：
A new procedure to prepare isomerically clean samples of ions with a mass resolving power of more than 100,000 has been developed at the JYFLTRAP tandem Penning trap system. The method utilises a dipolar rf-excitation of the ion motion with separated oscillatory fields in the precision trap. During a subsequent retransfer to the purification trap, the contaminants are rejected and as a consequence, the remaining bunch is isomerically cleaned. This newly-developed method is suitable for very high-resolution cleaning and is at least a factor of five faster than the methods used so far in Penning trap mass spectrometry.
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