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arXiv · 1309.0384

A novel ion cooling trap for multi-reflection time-of-flight mass spectrograph

Y. Ito·P. Schury·M. Wada·S. Naimi·C. Smorra·T. Sonoda·H. Mita·A. Takamine·K. Okada·A. Ozawa·H. Wollnik
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Abstract

A radiofrequency quadrupole ion trap system for use with a multi-reflection time-of-flight mass spectrograph (MRTOF) for short-lived nuclei has been developed. The trap system consists of two different parts, an asymmetric taper trap and a flat trap. The ions are cooled to a sufficient small bunch for precise mass measurement with MRTOF in only 2 ms cooling time in the flat trap, then orthogonally ejected to the MRTOF for mass analysis. A trapping efficiency of ~27% for 23Na+ and ~5.1% for 7Li+ has been achieved.

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Y. Ito, P. Schury, M. Wada, S. Naimi, C. Smorra, T. Sonoda, H. Mita, A. Takamine, K. Okada, A. Ozawa, H. Wollnik. 2013-09-02. A novel ion cooling trap for multi-reflection time-of-flight mass spectrograph. https://doi.org/10.1016/j.nimb.2013.07.069

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