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High mass resolution with a new variable anharmonicity Penning trap

 

作者: R. S. Van Dyck,   D. J. Wineland,   P. A. Ekstrom,   H. G. Dehmelt,  

 

期刊: Applied Physics Letters  (AIP Available online 1976)
卷期: Volume 28, issue 8  

页码: 446-448

 

ISSN:0003-6951

 

年代: 1976

 

DOI:10.1063/1.88793

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A modified Penning trap has been developed and shown to yield 100 times narrower axial resonance linewidths on electrons than that of a previous unmodified Penning trap. An extra pair of electrodes is inserted in the standard trap configuration, which effectively nulls the quartic term in the trapping potential. With existing signal‐to‐noise limitations, an axial frequency resolution of 0.02 ppm can be obtained. This device is particularly attractive to high‐resolution mass spectrometry.

 

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